One read of Claude Developer Platformapi-20260929T013708Z
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26-50 of 77, page 2 of 4This capture is too large to show at once. Changes 26-50 of 77 are below, significant first; the rest are on the following screens.
api/beta/sessions/events Changed · +4388 / -4230 lines
### Beta Managed Agents Session Event Type
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5757
5858 Opaque pagination cursor from a previous response's `next_page`.
5959
60- `types: optional array of string`
60- `types: optional array of BetaManagedAgentsSessionEventType`
6161
6262 Filter by event type. Values match the `type` field on returned events (for example, `user.message` or `agent.tool_use`). Omit to return all event types.
6363
64 - `"user.message"`
65
66 - `"user.interrupt"`
67
68 - `"user.tool_confirmation"`
69
70 - `"user.custom_tool_result"`
71
72 - `"agent.custom_tool_use"`
73
74 - `"agent.message"`
75
76 - `"agent.thinking"`
77
78 - `"agent.mcp_tool_use"`
79
80 - `"agent.mcp_tool_result"`
81
82 - `"agent.tool_use"`
83
84 - `"agent.tool_result"`
85
86 - `"agent.thread_message_received"`
87
88 - `"agent.thread_message_sent"`
89
90 - `"agent.thread_context_compacted"`
91
92 - `"session.error"`
93
94 - `"session.status_rescheduled"`
95
96 - `"session.status_running"`
97
98 - `"session.status_idle"`
99
100 - `"session.status_terminated"`
101
102 - `"session.thread_created"`
103
104 - `"span.outcome_evaluation_start"`
105
106 - `"span.outcome_evaluation_end"`
107
108 - `"span.model_request_start"`
109
110 - `"span.model_request_end"`
111
112 - `"span.outcome_evaluation_ongoing"`
113
114 - `"user.define_outcome"`
115
116 - `"session.thread_status_running"`
117
118 - `"session.thread_status_idle"`
119
120 - `"session.thread_status_terminated"`
121
122 - `"user.tool_result"`
123
124 - `"session.thread_status_rescheduled"`
125
126 - `"session.updated"`
127
128 - `"system.message"`
129
130 - `"session.usage"`
131
64132### Headers
65133
66134- `"anthropic-beta": optional array of AnthropicBeta`
from line 1763
16951763
16961764 See [models](https://docs.anthropic.com/en/docs/models-overview) for additional details and options.
16971765
1698 - `string`
1766 - `"claude-sonnet-5-5" or "claude-opus-5-5" or "claude-fable-5-1" or 13 more`
16991767
1700 - `"claude-opus-5-5" or "claude-fable-5-1" or "claude-sonnet-5" or 12 more`
1701
17021768 The model that will power your agent.
17031769
17041770 See [models](https://docs.anthropic.com/en/docs/models-overview) for additional details and options.
17051771
1772 - `"claude-sonnet-5-5"`
1773
1774 Efficient model for coding and agents
1775
17061776 - `"claude-opus-5-5"`
17071777
17081778 Powerful intelligence for coding, knowledge work, and long-running agents
from line 1783
17131783
17141784 - `"claude-sonnet-5"`
17151785
1716 High-performance model for coding and agents
1786 Efficient model for coding and agents
17171787
17181788 - `"claude-fable-5"`
17191789
from line 1833
17631833
17641834 High-performance model for agents and coding
17651835
1836 - `string`
1837
17661838 - `effort: optional BetaManagedAgentsEffortLow or BetaManagedAgentsEffortMedium or BetaManagedAgentsEffortHigh or 2 more`
17671839
17681840 How hard Claude works on each inference call. One of `low`, `medium`, `high`, `xhigh`, `max`. Always present; resolved to the per-model default at save time when not supplied.
from line 5149
50775149
50785150 See [models](https://docs.anthropic.com/en/docs/models-overview) for additional details and options.
50795151
5080 - `string`
5152 - `"claude-sonnet-5-5" or "claude-opus-5-5" or "claude-fable-5-1" or 13 more`
50815153
5082 - `"claude-opus-5-5" or "claude-fable-5-1" or "claude-sonnet-5" or 12 more`
5083
50845154 The model that will power your agent.
50855155
50865156 See [models](https://docs.anthropic.com/en/docs/models-overview) for additional details and options.
50875157
5158 - `"claude-sonnet-5-5"`
5159
5160 Efficient model for coding and agents
5161
50885162 - `"claude-opus-5-5"`
50895163
50905164 Powerful intelligence for coding, knowledge work, and long-running agents
from line 5169
50955169
50965170 - `"claude-sonnet-5"`
50975171
5098 High-performance model for coding and agents
5172 Efficient model for coding and agents
50995173
51005174 - `"claude-fable-5"`
51015175
from line 5219
51455219
51465220 High-performance model for agents and coding
51475221
5222 - `string`
5223
51485224 - `effort: optional BetaManagedAgentsEffortLow or BetaManagedAgentsEffortMedium or BetaManagedAgentsEffortHigh or 2 more`
51495225
51505226 How hard Claude works on each inference call. One of `low`, `medium`, `high`, `xhigh`, `max`. Always present; resolved to the per-model default at save time when not supplied.
from line 8910
88348910
88358911 Unique identifier for this event.
88368912
8837 - `content: array of BetaManagedAgentsTextBlock or BetaManagedAgentsImageBlock or BetaManagedAgentsDocumentBlock or BetaManagedAgentsRedactedBlock`
8838
8839 Array of content blocks comprising the user message.
8840
8841 - `BetaManagedAgentsTextBlock object`
8842
8843 Regular text content.
8844
8845 - `type: "text"`
8846
8847 - `text: string`
8848
8849 The text content.
8850
8851 minLength: 1
8852
8853 - `BetaManagedAgentsImageBlock object`
8854
8855 Image content specified directly as base64 data or as a reference via a URL.
8856
8857 - `type: "image"`
8858
8859 - `source: BetaManagedAgentsBase64ImageSource or BetaManagedAgentsURLImageSource or BetaManagedAgentsFileImageSource`
8860
8861 The source of the image data.
8862
8863 - `BetaManagedAgentsBase64ImageSource object`
8864
8865 Base64-encoded image data.
8866
8867 - `type: "base64"`
8868
8869 - `data: string`
8870
8871 Base64-encoded image data.
8872
8873 minLength: 1
8874
8875 - `media_type: string`
8876
8877 MIME type of the image (e.g., "image/png", "image/jpeg", "image/gif", "image/webp").
8878
8879 minLength: 1
8880
8881 - `BetaManagedAgentsURLImageSource object`
8882
8883 Image referenced by URL.
8884
8885 - `type: "url"`
8886
8887 - `url: string`
8888
8889 URL of the image to fetch.
8890
8891 minLength: 1
8892
8893 - `BetaManagedAgentsFileImageSource object`
8894
8895
8913 - `content: array of BetaManagedAgentsTextBlock or BetaManagedAgentsImageBlock or BetaManagedAgentsDocumentBlock or BetaManagedAg
api/beta/sessions/events/list Changed · +139 / -67 lines
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5555
5656 Opaque pagination cursor from a previous response's `next_page`.
5757
58- `types: optional array of string`
58- `types: optional array of BetaManagedAgentsSessionEventType`
5959
6060 Filter by event type. Values match the `type` field on returned events (for example, `user.message` or `agent.tool_use`). Omit to return all event types.
6161
62 - `"user.message"`
63
64 - `"user.interrupt"`
65
66 - `"user.tool_confirmation"`
67
68 - `"user.custom_tool_result"`
69
70 - `"agent.custom_tool_use"`
71
72 - `"agent.message"`
73
74 - `"agent.thinking"`
75
76 - `"agent.mcp_tool_use"`
77
78 - `"agent.mcp_tool_result"`
79
80 - `"agent.tool_use"`
81
82 - `"agent.tool_result"`
83
84 - `"agent.thread_message_received"`
85
86 - `"agent.thread_message_sent"`
87
88 - `"agent.thread_context_compacted"`
89
90 - `"session.error"`
91
92 - `"session.status_rescheduled"`
93
94 - `"session.status_running"`
95
96 - `"session.status_idle"`
97
98 - `"session.status_terminated"`
99
100 - `"session.thread_created"`
101
102 - `"span.outcome_evaluation_start"`
103
104 - `"span.outcome_evaluation_end"`
105
106 - `"span.model_request_start"`
107
108 - `"span.model_request_end"`
109
110 - `"span.outcome_evaluation_ongoing"`
111
112 - `"user.define_outcome"`
113
114 - `"session.thread_status_running"`
115
116 - `"session.thread_status_idle"`
117
118 - `"session.thread_status_terminated"`
119
120 - `"user.tool_result"`
121
122 - `"session.thread_status_rescheduled"`
123
124 - `"session.updated"`
125
126 - `"system.message"`
127
128 - `"session.usage"`
129
62130## Headers
63131
64132- `"anthropic-beta": optional array of AnthropicBeta`
from line 1761
16931761
16941762 See [models](https://docs.anthropic.com/en/docs/models-overview) for additional details and options.
16951763
1696 - `string`
1764 - `"claude-sonnet-5-5" or "claude-opus-5-5" or "claude-fable-5-1" or 13 more`
16971765
1698 - `"claude-opus-5-5" or "claude-fable-5-1" or "claude-sonnet-5" or 12 more`
1699
17001766 The model that will power your agent.
17011767
17021768 See [models](https://docs.anthropic.com/en/docs/models-overview) for additional details and options.
17031769
1770 - `"claude-sonnet-5-5"`
1771
1772 Efficient model for coding and agents
1773
17041774 - `"claude-opus-5-5"`
17051775
17061776 Powerful intelligence for coding, knowledge work, and long-running agents
from line 1781
17111781
17121782 - `"claude-sonnet-5"`
17131783
1714 High-performance model for coding and agents
1784 Efficient model for coding and agents
17151785
17161786 - `"claude-fable-5"`
17171787
from line 1830
17601830 - `"claude-sonnet-4-5-20250929"`
17611831
17621832 High-performance model for agents and coding
1833
1834 - `string`
17631835
17641836 - `effort: optional BetaManagedAgentsEffortLow or BetaManagedAgentsEffortMedium or BetaManagedAgentsEffortHigh or 2 more`
17651837
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16571657
16581658 See [models](https://docs.anthropic.com/en/docs/models-overview) for additional details and options.
16591659
1660 - `string`
1660 - `"claude-sonnet-5-5" or "claude-opus-5-5" or "claude-fable-5-1" or 13 more`
16611661
1662 - `"claude-opus-5-5" or "claude-fable-5-1" or "claude-sonnet-5" or 12 more`
1663
16641662 The model that will power your agent.
16651663
16661664 See [models](https://docs.anthropic.com/en/docs/models-overview) for additional details and options.
16671665
1666 - `"claude-sonnet-5-5"`
1667
1668 Efficient model for coding and agents
1669
16681670 - `"claude-opus-5-5"`
16691671
16701672 Powerful intelligence for coding, knowledge work, and long-running agents
from line 1677
16751677
16761678 - `"claude-sonnet-5"`
16771679
1678 High-performance model for coding and agents
1680 Efficient model for coding and agents
16791681
16801682 - `"claude-fable-5"`
16811683
from line 1726
17241726 - `"claude-sonnet-4-5-20250929"`
17251727
17261728 High-performance model for agents and coding
1729
1730 - `string`
17271731
17281732 - `effort: optional BetaManagedAgentsEffortLow or BetaManagedAgentsEffortMedium or BetaManagedAgentsEffortHigh or 2 more`
17291733
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from line 245
245245
246246 See [models](https://docs.anthropic.com/en/docs/models-overview) for additional details and options.
247247
248 - `string`
248 - `"claude-sonnet-5-5" or "claude-opus-5-5" or "claude-fable-5-1" or 13 more`
249249
250 - `"claude-opus-5-5" or "claude-fable-5-1" or "claude-sonnet-5" or 12 more`
251
252250 The model that will power your agent.
253251
254252 See [models](https://docs.anthropic.com/en/docs/models-overview) for additional details and options.
255253
254 - `"claude-sonnet-5-5"`
255
256 Efficient model for coding and agents
257
256258 - `"claude-opus-5-5"`
257259
258260 Powerful intelligence for coding, knowledge work, and long-running agents
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263265
264266 - `"claude-sonnet-5"`
265267
266 High-performance model for coding and agents
268 Efficient model for coding and agents
267269
268270 - `"claude-fable-5"`
269271
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312314 - `"claude-sonnet-4-5-20250929"`
313315
314316 High-performance model for agents and coding
317
318 - `string`
315319
316320 - `effort: optional BetaManagedAgentsEffortLow or BetaManagedAgentsEffortMedium or BetaManagedAgentsEffortHigh or 2 more`
317321
api/beta/sessions/retrieve Changed · +70 / -66 lines
from line 163
163163
164164 See [models](https://docs.anthropic.com/en/docs/models-overview) for additional details and options.
165165
166 - `string`
166 - `"claude-sonnet-5-5" or "claude-opus-5-5" or "claude-fable-5-1" or 13 more`
167167
168 - `"claude-opus-5-5" or "claude-fable-5-1" or "claude-sonnet-5" or 12 more`
169
170168 The model that will power your agent.
171169
172170 See [models](https://docs.anthropic.com/en/docs/models-overview) for additional details and options.
173171
172 - `"claude-sonnet-5-5"`
173
174 Efficient model for coding and agents
175
174176 - `"claude-opus-5-5"`
175177
176178 Powerful intelligence for coding, knowledge work, and long-running agents
from line 183
181183
182184 - `"claude-sonnet-5"`
183185
184 High-performance model for coding and agents
186 Efficient model for coding and agents
185187
186188 - `"claude-fable-5"`
187189
from line 232
230232 - `"claude-sonnet-4-5-20250929"`
231233
232234 High-performance model for agents and coding
235
236 - `string`
233237
234238 - `effort: optional BetaManagedAgentsEffortLow or BetaManagedAgentsEffortMedium or BetaManagedAgentsEffortHigh or 2 more`
235239
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183183
184184 See [models](https://docs.anthropic.com/en/docs/models-overview) for additional details and options.
185185
186 - `string`
186 - `"claude-sonnet-5-5" or "claude-opus-5-5" or "claude-fable-5-1" or 13 more`
187187
188 - `"claude-opus-5-5" or "claude-fable-5-1" or "claude-sonnet-5" or 12 more`
189
190188 The model that will power your agent.
191189
192190 See [models](https://docs.anthropic.com/en/docs/models-overview) for additional details and options.
193191
192 - `"claude-sonnet-5-5"`
193
194 Efficient model for coding and agents
195
194196 - `"claude-opus-5-5"`
195197
196198 Powerful intelligence for coding, knowledge work, and long-running agents
from line 203
201203
202204 - `"claude-sonnet-5"`
203205
204 High-performance model for coding and agents
206 Efficient model for coding and agents
205207
206208 - `"claude-fable-5"`
207209
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251253
252254 High-performance model for agents and coding
253255
256 - `string`
257
254258 - `effort: optional BetaManagedAgentsEffortLow or BetaManagedAgentsEffortMedium or BetaManagedAgentsEffortHigh or 2 more`
255259
256260 How hard Claude works on each inference call. One of `low`, `medium`, `high`, `xhigh`, `max`. Always present; resolved to the per-model default at save time when not supplied.
from line 1104
11001104
11011105 See [models](https://docs.anthropic.com/en/docs/models-overview) for additional details and options.
11021106
1103 - `string`
1107 - `"claude-sonnet-5-5" or "claude-opus-5-5" or "claude-fable-5-1" or 13 more`
11041108
1105 - `"claude-opus-5-5" or "claude-fable-5-1" or "claude-sonnet-5" or 12 more`
1106
11071109 The model that will power your agent.
11081110
11091111 See [models](https://docs.anthropic.com/en/docs/models-overview) for additional details and options.
11101112
1113 - `"claude-sonnet-5-5"`
1114
1115 Efficient model for coding and agents
1116
11111117 - `"claude-opus-5-5"`
11121118
11131119 Powerful intelligence for coding, knowledge work, and long-running agents
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11181124
11191125 - `"claude-sonnet-5"`
11201126
1121 High-performance model for coding and agents
1127 Efficient model for coding and agents
11221128
11231129 - `"claude-fable-5"`
11241130
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11681174
11691175 High-performance model for agents and coding
11701176
1177 - `string`
1178
11711179 - `effort: optional BetaManagedAgentsEffortLow or BetaManagedAgentsEffortMedium or BetaManagedAgentsEffortHigh or 2 more`
11721180
11731181 How hard Claude works on each inference call. One of `low`, `medium`, `high`, `xhigh`, `max`. Always present; resolved to the per-model default at save time when not supplied.
from line 2016
20082016
20092017 See [models](https://docs.anthropic.com/en/docs/models-overview) for additional details and options.
20102018
2011 - `string`
2019 - `"claude-sonnet-5-5" or "claude-opus-5-5" or "claude-fable-5-1" or 13 more`
20122020
2013 - `"claude-opus-5-5" or "claude-fable-5-1" or "claude-sonnet-5" or 12 more`
2014
20152021 The model that will power your agent.
20162022
20172023 See [models](https://docs.anthropic.com/en/docs/models-overview) for additional details and options.
20182024
2025 - `"claude-sonnet-5-5"`
2026
2027 Efficient model for coding and agents
2028
20192029 - `"claude-opus-5-5"`
20202030
20212031 Powerful intelligence for coding, knowledge work, and long-running agents
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20262036
20272037 - `"claude-sonnet-5"`
20282038
2029 High-performance model for coding and agents
2039 Efficient model for coding and agents
20302040
20312041 - `"claude-fable-5"`
20322042
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20762086
20772087 High-performance model for agents and coding
20782088
2089 - `string`
2090
20792091 - `effort: optional BetaManagedAgentsEffortLow or BetaManagedAgentsEffortMedium or BetaManagedAgentsEffortHigh or 2 more`
20802092
20812093 How hard Claude works on each inference call. One of `low`, `medium`, `high`, `xhigh`, `max`. Always present; resolved to the per-model default at save time when not supplied.
from line 2807
27952807
27962808 See [models](https://docs.anthropic.com/en/docs/models-overview) for additional details and options.
27972809
2798 - `string`
2810 - `"claude-sonnet-5-5" or "claude-opus-5-5" or "claude-fable-5-1" or 13 more`
27992811
2800 - `"claude-opus-5-5" or "claude-fable-5-1" or "claude-sonnet-5" or 12 more`
2801
28022812 The model that will power your agent.
28032813
28042814 See [models](https://docs.anthropic.com/en/docs/models-overview) for additional details and options.
28052815
2816 - `"claude-sonnet-5-5"`
2817
2818 Efficient model for coding and agents
2819
28062820 - `"claude-opus-5-5"`
28072821
28082822 Powerful intelligence for coding, knowledge work, and long-running agents
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28132827
28142828 - `"claude-sonnet-5"`
28152829
2816 High-performance model for coding and agents
2830 Efficient model for coding and agents
28172831
28182832 - `"claude-fable-5"`
28192833
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28642878 High-performance model for agents and coding
28652879
2880 - `string`
2881
28662882 - `effort: optional BetaManagedAgentsEffortLow or BetaManagedAgentsEffortMedium or BetaManagedAgentsEffortHigh or 2 more`
28672883
28682884 How hard Claude works on each inference call. One of `low`, `medium`, `high`, `xhigh`, `max`. Always present; resolved to the per-model default at save time when not supplied.
from line 5087
50715087
50725088 See [models](https://docs.anthropic.com/en/docs/models-overview) for additional details and options.
50735089
5074 - `string`
5090 - `"claude-sonnet-5-5" or "claude-opus-5-5" or "claude-fable-5-1" or 13 more`
50755091
5076 - `"claude-opus-5-5" or "claude-fable-5-1" or "claude-sonnet-5" or 12 more`
5077
50785092 The model that will power your agent.
50795093
50805094 See [models](https://docs.anthropic.com/en/docs/models-overview) for additional details and options.
50815095
5096 - `"claude-sonnet-5-5"`
5097
5098 Efficient model for coding and agents
5099
50825100 - `"claude-opus-5-5"`
50835101
50845102 Powerful intelligence for coding, knowledge work, and long-running agents
from line 5107
50895107
50905108 - `"claude-sonnet-5"`
50915109
5092 High-performance model for coding and agents
5110 Efficient model for coding and agents
50935111
50945112 - `"claude-fable-5"`
50955113
from line 5157
51395157
51405158 High-performance model for agents and coding
51415159
5160 - `string`
5161
51425162 - `effort: optional BetaManagedAgentsEffortLow or BetaManagedAgentsEffortMedium or BetaManagedAgentsEffortHigh or 2 more`
51435163
51445164 How hard Claude works on each inference call. One of `low`, `medium`, `high`, `xhigh`, `max`. Always present; resolved to the per-model default at save time when not supplied.
from line 7505
74857505
74867506 See [models](https://docs.anthropic.com/en/docs/models-overview) for additional details and options.
74877507
7488 - `string`
7508 - `"claude-sonnet-5-5" or "claude-opus-5-5" or "claude-fable-5-1" or 13 more`
74897509
7490 - `"claude-opus-5-5" or "claude-fable-5-1" or "claude-sonnet-5" or 12 more`
7491
74927510 The model that will power your agent.
74937511
74947512 See [models](https://docs.anthropic.com/en/docs/models-overview) for additional details and options.
74957513
7514 - `"claude-sonnet-5-5"`
7515
7516 Efficient model for coding and agents
7517
74967518 - `"claude-opus-5-5"`
74977519
74987520 Powerful intelligence for coding, knowledge work, and long-running agents
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75037525
75047526 - `"claude-sonnet-5"`
75057527
7506 High-performance model for coding and agents
7528 Efficient model for coding and agents
75077529
75087530 - `"claude-fable-5"`
75097531
from line 7575
75537575
75547576 High-performance model for agents and coding
75557577
7578 - `string`
7579
75567580 - `effort: optional BetaManagedAgentsEffortLow or BetaManagedAgentsEffortMedium or BetaManagedAgentsEffortHigh or 2 more`
75577581
75587582 How hard Claude works on each inference call. One of `low`, `medium`, `high`, `xhigh`, `max`. Always present; resolved to the per-model default at save time when not supplied.
from line 8349
83258349
83268350 - `"fallback-credit-2026-07-01"`
83278351
8328 - `"agent-memory-2026-07-22"`
8329
8330 - `"mid-conversation-tool-changes-2026-07-01"`
8331
8332 - `"compact-2026-01-12"`
8333
8334 - `"computer-use-2025-11-24"`
8335
8336 - `"mcp-tunnels-2026-06-22"`
8337
8338 - `"structured-outputs-2025-11-13"`
8339
8340 - `"task-budgets-2026-03-13"`
8341
8342 - `"thinking-display-updates-2026-08-18"`
8343
8344 - `"ce-user-management-2026-07-13"`
8345
8346 - `"mid-conversation-output-config-2026-07-01"`
8347
8348 - `"thinking-binding-controls-2026-08-01"`
8349
8350 - `"mid-conversation-system-clear-at-2026-08-21"`
8351
8352 - `"compact-2026-09-0
8352 - `"agent-memory-
api/beta/sessions/threads/archive Changed · +70 / -66 lines
from line 171
171171
172172 See [models](https://docs.anthropic.com/en/docs/models-overview) for additional details and options.
173173
174 - `string`
174 - `"claude-sonnet-5-5" or "claude-opus-5-5" or "claude-fable-5-1" or 13 more`
175175
176 - `"claude-opus-5-5" or "claude-fable-5-1" or "claude-sonnet-5" or 12 more`
177
178176 The model that will power your agent.
179177
180178 See [models](https://docs.anthropic.com/en/docs/models-overview) for additional details and options.
181179
180 - `"claude-sonnet-5-5"`
181
182 Efficient model for coding and agents
183
182184 - `"claude-opus-5-5"`
183185
184186 Powerful intelligence for coding, knowledge work, and long-running agents
from line 191
189191
190192 - `"claude-sonnet-5"`
191193
192 High-performance model for coding and agents
194 Efficient model for coding and agents
193195
194196 - `"claude-fable-5"`
195197
from line 240
238240 - `"claude-sonnet-4-5-20250929"`
239241
240242 High-performance model for agents and coding
243
244 - `string`
241245
242246 - `effort: optional BetaManagedAgentsEffortLow or BetaManagedAgentsEffortMedium or BetaManagedAgentsEffortHigh or 2 more`
243247
api/beta/sessions/threads/events Changed · +140 / -132 lines
from line 1659
16591659
16601660 See [models](https://docs.anthropic.com/en/docs/models-overview) for additional details and options.
16611661
1662 - `string`
1662 - `"claude-sonnet-5-5" or "claude-opus-5-5" or "claude-fable-5-1" or 13 more`
16631663
1664 - `"claude-opus-5-5" or "claude-fable-5-1" or "claude-sonnet-5" or 12 more`
1665
16661664 The model that will power your agent.
16671665
16681666 See [models](https://docs.anthropic.com/en/docs/models-overview) for additional details and options.
16691667
1668 - `"claude-sonnet-5-5"`
1669
1670 Efficient model for coding and agents
1671
16701672 - `"claude-opus-5-5"`
16711673
16721674 Powerful intelligence for coding, knowledge work, and long-running agents
from line 1679
16771679
16781680 - `"claude-sonnet-5"`
16791681
1680 High-performance model for coding and agents
1682 Efficient model for coding and agents
16811683
16821684 - `"claude-fable-5"`
16831685
from line 1729
17271729
17281730 High-performance model for agents and coding
17291731
1732 - `string`
1733
17301734 - `effort: optional BetaManagedAgentsEffortLow or BetaManagedAgentsEffortMedium or BetaManagedAgentsEffortHigh or 2 more`
17311735
17321736 How hard Claude works on each inference call. One of `low`, `medium`, `high`, `xhigh`, `max`. Always present; resolved to the per-model default at save time when not supplied.
from line 4061
40574061
40584062 See [models](https://docs.anthropic.com/en/docs/models-overview) for additional details and options.
40594063
4060 - `string`
4064 - `"claude-sonnet-5-5" or "claude-opus-5-5" or "claude-fable-5-1" or 13 more`
40614065
4062 - `"claude-opus-5-5" or "claude-fable-5-1" or "claude-sonnet-5" or 12 more`
4063
40644066 The model that will power your agent.
40654067
40664068 See [models](https://docs.anthropic.com/en/docs/models-overview) for additional details and options.
40674069
4070 - `"claude-sonnet-5-5"`
4071
4072 Efficient model for coding and agents
4073
40684074 - `"claude-opus-5-5"`
40694075
40704076 Powerful intelligence for coding, knowledge work, and long-running agents
from line 4081
40754081
40764082 - `"claude-sonnet-5"`
40774083
4078 High-performance model for coding and agents
4084 Efficient model for coding and agents
40794085
40804086 - `"claude-fable-5"`
40814087
from line 4130
41244130 - `"claude-sonnet-4-5-20250929"`
41254131
41264132 High-performance model for agents and coding
4133
4134 - `string`
41274135
41284136 - `effort: optional BetaManagedAgentsEffortLow or BetaManagedAgentsEffortMedium or BetaManagedAgentsEffortHigh or 2 more`
41294137
api/beta/sessions/threads/events/list Changed · +70 / -66 lines
from line 1657
16571657
16581658 See [models](https://docs.anthropic.com/en/docs/models-overview) for additional details and options.
16591659
1660 - `string`
1660 - `"claude-sonnet-5-5" or "claude-opus-5-5" or "claude-fable-5-1" or 13 more`
16611661
1662 - `"claude-opus-5-5" or "claude-fable-5-1" or "claude-sonnet-5" or 12 more`
1663
16641662 The model that will power your agent.
16651663
16661664 See [models](https://docs.anthropic.com/en/docs/models-overview) for additional details and options.
16671665
1666 - `"claude-sonnet-5-5"`
1667
1668 Efficient model for coding and agents
1669
16681670 - `"claude-opus-5-5"`
16691671
16701672 Powerful intelligence for coding, knowledge work, and long-running agents
from line 1677
16751677
16761678 - `"claude-sonnet-5"`
16771679
1678 High-performance model for coding and agents
1680 Efficient model for coding and agents
16791681
16801682 - `"claude-fable-5"`
16811683
from line 1726
17241726 - `"claude-sonnet-4-5-20250929"`
17251727
17261728 High-performance model for agents and coding
1729
1730 - `string`
17271731
17281732 - `effort: optional BetaManagedAgentsEffortLow or BetaManagedAgentsEffortMedium or BetaManagedAgentsEffortHigh or 2 more`
17291733
api/beta/sessions/threads/events/stream Changed · +70 / -66 lines
from line 1659
16591659
16601660 See [models](https://docs.anthropic.com/en/docs/models-overview) for additional details and options.
16611661
1662 - `string`
1662 - `"claude-sonnet-5-5" or "claude-opus-5-5" or "claude-fable-5-1" or 13 more`
16631663
1664 - `"claude-opus-5-5" or "claude-fable-5-1" or "claude-sonnet-5" or 12 more`
1665
16661664 The model that will power your agent.
16671665
16681666 See [models](https://docs.anthropic.com/en/docs/models-overview) for additional details and options.
16691667
1668 - `"claude-sonnet-5-5"`
1669
1670 Efficient model for coding and agents
1671
16701672 - `"claude-opus-5-5"`
16711673
16721674 Powerful intelligence for coding, knowledge work, and long-running agents
from line 1679
16771679
16781680 - `"claude-sonnet-5"`
16791681
1680 High-performance model for coding and agents
1682 Efficient model for coding and agents
16811683
16821684 - `"claude-fable-5"`
16831685
from line 1728
17261728 - `"claude-sonnet-4-5-20250929"`
17271729
17281730 High-performance model for agents and coding
1731
1732 - `string`
17291733
17301734 - `effort: optional BetaManagedAgentsEffortLow or BetaManagedAgentsEffortMedium or BetaManagedAgentsEffortHigh or 2 more`
17311735
api/beta/sessions/threads/list Changed · +70 / -66 lines
from line 181
181181
182182 See [models](https://docs.anthropic.com/en/docs/models-overview) for additional details and options.
183183
184 - `string`
184 - `"claude-sonnet-5-5" or "claude-opus-5-5" or "claude-fable-5-1" or 13 more`
185185
186 - `"claude-opus-5-5" or "claude-fable-5-1" or "claude-sonnet-5" or 12 more`
187
188186 The model that will power your agent.
189187
190188 See [models](https://docs.anthropic.com/en/docs/models-overview) for additional details and options.
191189
190 - `"claude-sonnet-5-5"`
191
192 Efficient model for coding and agents
193
192194 - `"claude-opus-5-5"`
193195
194196 Powerful intelligence for coding, knowledge work, and long-running agents
from line 201
199201
200202 - `"claude-sonnet-5"`
201203
202 High-performance model for coding and agents
204 Efficient model for coding and agents
203205
204206 - `"claude-fable-5"`
205207
from line 250
248250 - `"claude-sonnet-4-5-20250929"`
249251
250252 High-performance model for agents and coding
253
254 - `string`
251255
252256 - `effort: optional BetaManagedAgentsEffortLow or BetaManagedAgentsEffortMedium or BetaManagedAgentsEffortHigh or 2 more`
253257
api/beta/sessions/threads/retrieve Changed · +70 / -66 lines
from line 171
171171
172172 See [models](https://docs.anthropic.com/en/docs/models-overview) for additional details and options.
173173
174 - `string`
174 - `"claude-sonnet-5-5" or "claude-opus-5-5" or "claude-fable-5-1" or 13 more`
175175
176 - `"claude-opus-5-5" or "claude-fable-5-1" or "claude-sonnet-5" or 12 more`
177
178176 The model that will power your agent.
179177
180178 See [models](https://docs.anthropic.com/en/docs/models-overview) for additional details and options.
181179
180 - `"claude-sonnet-5-5"`
181
182 Efficient model for coding and agents
183
182184 - `"claude-opus-5-5"`
183185
184186 Powerful intelligence for coding, knowledge work, and long-running agents
from line 191
189191
190192 - `"claude-sonnet-5"`
191193
192 High-performance model for coding and agents
194 Efficient model for coding and agents
193195
194196 - `"claude-fable-5"`
195197
from line 240
238240 - `"claude-sonnet-4-5-20250929"`
239241
240242 High-performance model for agents and coding
243
244 - `string`
241245
242246 - `effort: optional BetaManagedAgentsEffortLow or BetaManagedAgentsEffortMedium or BetaManagedAgentsEffortHigh or 2 more`
243247
api/beta/sessions/update Changed · +70 / -66 lines
from line 649
649649
650650 See [models](https://docs.anthropic.com/en/docs/models-overview) for additional details and options.
651651
652 - `string`
652 - `"claude-sonnet-5-5" or "claude-opus-5-5" or "claude-fable-5-1" or 13 more`
653653
654 - `"claude-opus-5-5" or "claude-fable-5-1" or "claude-sonnet-5" or 12 more`
655
656654 The model that will power your agent.
657655
658656 See [models](https://docs.anthropic.com/en/docs/models-overview) for additional details and options.
659657
658 - `"claude-sonnet-5-5"`
659
660 Efficient model for coding and agents
661
660662 - `"claude-opus-5-5"`
661663
662664 Powerful intelligence for coding, knowledge work, and long-running agents
from line 669
667669
668670 - `"claude-sonnet-5"`
669671
670 High-performance model for coding and agents
672 Efficient model for coding and agents
671673
672674 - `"claude-fable-5"`
673675
from line 718
716718 - `"claude-sonnet-4-5-20250929"`
717719
718720 High-performance model for agents and coding
721
722 - `string`
719723
720724 - `effort: optional BetaManagedAgentsEffortLow or BetaManagedAgentsEffortMedium or BetaManagedAgentsEffortHigh or 2 more`
721725
api/completions Changed · +252 / -240 lines
from line 145
145145
146146 See [models](https://docs.anthropic.com/en/docs/models-overview) for additional details and options.
147147
148 - `string`
148 - `"claude-sonnet-5-5" or "claude-fable-5-1" or "claude-opus-5-5" or 16 more`
149149
150 - `"claude-fable-5-1" or "claude-opus-5-5" or "claude-mythos-5-1" or 15 more`
151
152150 The model that will complete your prompt.
153151
154152 See [models](https://docs.anthropic.com/en/docs/models-overview) for additional details and options.
155153
154 - `"claude-sonnet-5-5"`
155
156 Efficient model for coding and agents
157
156158 - `"claude-fable-5-1"`
157159
158160 Frontier intelligence for ambitious tasks across coding, scientific discovery, and enterprise workflows
from line 169
167169
168170 - `"claude-sonnet-5"`
169171
170 High-performance model for coding and agents
172 Efficient model for coding and agents
171173
172174 - `"claude-fable-5"`
173175
from line 229
227229
228230 New class of intelligence, strongest in coding and cybersecurity
229231
232 - `string`
233
230234- `prompt: string`
231235
232236 The prompt that you want Claude to complete.
from line 343
339343
340344 See [models](https://docs.anthropic.com/en/docs/models-overview) for additional details and options.
341345
342 - `string`
346 - `"claude-sonnet-5-5" or "claude-fable-5-1" or "claude-opus-5-5" or 16 more`
343347
344 - `"claude-fable-5-1" or "claude-opus-5-5" or "claude-mythos-5-1" or 15 more`
345
346348 The model that will complete your prompt.
347349
348350 See [models](https://docs.anthropic.com/en/docs/models-overview) for additional details and options.
349351
352 - `"claude-sonnet-5-5"`
353
354 Efficient model for coding and agents
355
350356 - `"claude-fable-5-1"`
351357
352358 Frontier intelligence for ambitious tasks across coding, scientific discovery, and enterprise workflows
from line 367
361367
362368 - `"claude-sonnet-5"`
363369
364 High-performance model for coding and agents
370 Efficient model for coding and agents
365371
366372 - `"claude-fable-5"`
367373
from line 427
421427
422428 New class of intelligence, strongest in coding and cybersecurity
423429
430 - `string`
431
424432 - `stop_reason: string or null`
425433
426434 The reason that we stopped.
from line 498
490498
491499 See [models](https://docs.anthropic.com/en/docs/models-overview) for additional details and options.
492500
493 - `string`
501 - `"claude-sonnet-5-5" or "claude-fable-5-1" or "claude-opus-5-5" or 16 more`
494502
495 - `"claude-fable-5-1" or "claude-opus-5-5" or "claude-mythos-5-1" or 15 more`
496
497503 The model that will complete your prompt.
498504
499505 See [models](https://docs.anthropic.com/en/docs/models-overview) for additional details and options.
500506
507 - `"claude-sonnet-5-5"`
508
509 Efficient model for coding and agents
510
501511 - `"claude-fable-5-1"`
502512
503513 Frontier intelligence for ambitious tasks across coding, scientific discovery, and enterprise workflows
from line 522
512522
513523 - `"claude-sonnet-5"`
514524
515 High-performance model for coding and agents
525 Efficient model for coding and agents
516526
517527 - `"claude-fable-5"`
518528
from line 581
571581 **Deprecated**: Will reach end-of-life on June 30, 2026. Please migrate to claude-mythos-5. Visit https://docs.anthropic.com/en/docs/resources/model-deprecations for more information.
572582
573583 New class of intelligence, strongest in coding and cybersecurity
584
585 - `string`
574586
575587 - `stop_reason: string or null`
576588
api/completions/create Changed · +168 / -160 lines
from line 143
143143
144144 See [models](https://docs.anthropic.com/en/docs/models-overview) for additional details and options.
145145
146 - `string`
146 - `"claude-sonnet-5-5" or "claude-fable-5-1" or "claude-opus-5-5" or 16 more`
147147
148 - `"claude-fable-5-1" or "claude-opus-5-5" or "claude-mythos-5-1" or 15 more`
149
150148 The model that will complete your prompt.
151149
152150 See [models](https://docs.anthropic.com/en/docs/models-overview) for additional details and options.
153151
152 - `"claude-sonnet-5-5"`
153
154 Efficient model for coding and agents
155
154156 - `"claude-fable-5-1"`
155157
156158 Frontier intelligence for ambitious tasks across coding, scientific discovery, and enterprise workflows
from line 167
165167
166168 - `"claude-sonnet-5"`
167169
168 High-performance model for coding and agents
170 Efficient model for coding and agents
169171
170172 - `"claude-fable-5"`
171173
from line 227
225227
226228 New class of intelligence, strongest in coding and cybersecurity
227229
230 - `string`
231
228232- `prompt: string`
229233
230234 The prompt that you want Claude to complete.
from line 341
337341
338342 See [models](https://docs.anthropic.com/en/docs/models-overview) for additional details and options.
339343
340 - `string`
344 - `"claude-sonnet-5-5" or "claude-fable-5-1" or "claude-opus-5-5" or 16 more`
341345
342 - `"claude-fable-5-1" or "claude-opus-5-5" or "claude-mythos-5-1" or 15 more`
343
344346 The model that will complete your prompt.
345347
346348 See [models](https://docs.anthropic.com/en/docs/models-overview) for additional details and options.
347349
350 - `"claude-sonnet-5-5"`
351
352 Efficient model for coding and agents
353
348354 - `"claude-fable-5-1"`
349355
350356 Frontier intelligence for ambitious tasks across coding, scientific discovery, and enterprise workflows
from line 365
359365
360366 - `"claude-sonnet-5"`
361367
362 High-performance model for coding and agents
368 Efficient model for coding and agents
363369
364370 - `"claude-fable-5"`
365371
from line 424
418424 **Deprecated**: Will reach end-of-life on June 30, 2026. Please migrate to claude-mythos-5. Visit https://docs.anthropic.com/en/docs/resources/model-deprecations for more information.
419425
420426 New class of intelligence, strongest in coding and cybersecurity
427
428 - `string`
421429
422430 - `stop_reason: string or null`
423431
api/compliance Changed · +1970 / -1283 lines
This page is larger than the 256 KiB this site keeps, so one side of the diff below stops where the stored text does.
from line 19
1919
2020#### Query parameters
2121
22- `activity_types: optional array of "abuse_decision_received" or "account_deleted" or "admin_api_key_created" or 511 more`
22- `activity_types: optional array of "abuse_decision_received" or "account_deleted" or "admin_api_key_created" or 513 more`
2323
2424 Filter activities by type. See the response `data` schema for the additional fields each type returns. Cannot be combined with `exclude_activity_types[]`.
2525
from line 547
547547
548548 User disabled a plugin for their account.
549549
550 - `"claude_plugin_downloaded"`
551
552 The archive of the plugin version a member was served was downloaded to install or update the plugin in one of the member's Claude apps (Claude in the browser, the Claude desktop app, Claude Code, or a cloud session).
553
550554 - `"claude_plugin_enabled"`
551555
552556 User enabled a plugin for their account.
from line 937
933937
934938 - `"inference_hooks_request_denied"`
935939
936 Inference hooks inspection denied a request. The request was blocked and no model response was produced.
940 Inference hooks inspection denied a request. The request was blocked.
937941
938942 - `"inference_hooks_request_failed_open"`
939943
from line 1675
16711675
16721676 An OAuth app was updated.
16731677
1678 - `"platform_organization_created"`
1679
1680 An owner of the organization created a Claude Console organization under the same parent organization.
1681
16741682 - `"platform_plugin_directory_submission_created"`
16751683
16761684 A plugin directory submission was created on the API platform. A plugin directory submission is a request to list a plugin in the public plugin directory.
from line 2142
21342142
21352143 format: date-time
21362144
2137- `exclude_activity_types: optional array of "abuse_decision_received" or "account_deleted" or "admin_api_key_created" or 511 more`
2145- `exclude_activity_types: optional array of "abuse_decision_received" or "account_deleted" or "admin_api_key_created" or 513 more`
21382146
21392147 Exclude activities of these types. Cannot be combined with `activity_types[]`.
21402148
from line 2670
26622670
26632671 User disabled a plugin for their account.
26642672
2673 - `"claude_plugin_downloaded"`
2674
2675 The archive of the plugin version a member was served was downloaded to install or update the plugin in one of the member's Claude apps (Claude in the browser, the Claude desktop app, Claude Code, or a cloud session).
2676
26652677 - `"claude_plugin_enabled"`
26662678
26672679 User enabled a plugin for their account.
from line 3060
30483060
30493061 - `"inference_hooks_request_denied"`
30503062
3051 Inference hooks inspection denied a request. The request was blocked and no model response was produced.
3063 Inference hooks inspection denied a request. The request was blocked.
30523064
30533065 - `"inference_hooks_request_failed_open"`
30543066
from line 3798
37863798
37873799 An OAuth app was updated.
37883800
3801 - `"platform_organization_created"`
3802
3803 An owner of the organization created a Claude Console organization under the same parent organization.
3804
37893805 - `"platform_plugin_directory_submission_created"`
37903806
37913807 A plugin directory submission was created on the API platform. A plugin directory submission is a request to list a plugin in the public plugin directory.
from line 4257
42414257
42424258#### Returns
42434259
4244- `data: optional array of AbuseDecisionReceived or AccountDeleted or AdminAPIKeyCreated or 511 more`
4260- `data: optional array of AbuseDecisionReceived or AccountDeleted or AdminAPIKeyCreated or 513 more`
42454261
42464262 List of activity records. Each element's `type` field identifies which activity it is and which additional fields are present.
42474263
from line 8597
85818597
85828598 The published artifact's identifier.
85838599
8584 - `title: string`
8585
8586 Title of the published artifact
8587
85888600 - `id: optional string`
85898601
85908602 Unique identifier for the activity e.g. 'activity_abcd1234'
from line 8631
86198631
86208632 Organization UUID where the activity occurred. Null when the activity is not tied to an organization (for example, login and logout events or calls to the Compliance API).
86218633
8634 - `title: string`
8635
8636 **Deprecated**
8637
8638 No longer populated. For Code Artifacts (`claude_published_artifact_id` starts with `cart_`), find that artifact in List Code Artifacts: the title is the `name` of its `versions` entry whose `id` equals `claude_artifact_version_id`, while that version is still retained (a `name` equal to the version id means the title is no longer kept). For other artifacts, look up `claude_artifact_version_id` with Get artifact metadata. That id is absent when the publish isn't linked to an artifact version, and neither lookup works once the artifact is deleted.
8639
86228640 - `ClaudeArtifactSharingUpdated object`
86238641
86248642 An artifact's sharing settings were updated.
from line 9736
97189736
97199737 - `user_agent: string`
97209738
9721 - `ServiceAccountActor object`
9722
9723 - `type: optional "service_account_actor"`
9724
9725 default: service_account_actor
9726
9727 - `ip_address: string`
9728
9729 - `service_account_id: string`
9730
9731 - `user_agent: string`
9732
9733 - `ScimDirectorySyncActor object`
9734
9735 - `type: optional "scim_directory_sync_actor"`
9736
9737 default: scim_directory_sync_actor
9738
9739 - `directory_id: string`
9740
9741 - `workos_event_id: string`
9742
9743 - `idp_connection_type: optional string or null`
9744
9745 - `FederatedIdentityActor object`
9746
9747 A federated external workload authenticated via a verified OIDC token.
9748
9749 Carries the verified issuer, subject, and audience claims from the
9750 presented JWT.
9751
9752 - `type: optional "federated_identity_actor"`
9753
9754 default: federated_identity_actor
9755
9756 - `issuer: string`
9757
9758 - `subject: string`
9759
9760 - `audience: optional array of string`
9761
9762 - `ip_address: optional string or null`
9763
9764 - `user_agent: optional string or null`
9765
9766 - `FederatedActor object`
9767
9768 An external identity asserted by a trusted provider — a cloud-provider
9769 gateway or a customer-registered federation issuer — acting without an
9770 Anthropic-provisioned account or service account.
9771
9772
9739 - `Se
api/compliance/activities Changed · +4047 / -2695 lines
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from line 17
1717
1818### Query parameters
1919
20- `activity_types: optional array of "abuse_decision_received" or "account_deleted" or "admin_api_key_created" or 511 more`
20- `activity_types: optional array of "abuse_decision_received" or "account_deleted" or "admin_api_key_created" or 513 more`
2121
2222 Filter activities by type. See the response `data` schema for the additional fields each type returns. Cannot be combined with `exclude_activity_types[]`.
2323
from line 545
545545
546546 User disabled a plugin for their account.
547547
548 - `"claude_plugin_downloaded"`
549
550 The archive of the plugin version a member was served was downloaded to install or update the plugin in one of the member's Claude apps (Claude in the browser, the Claude desktop app, Claude Code, or a cloud session).
551
548552 - `"claude_plugin_enabled"`
549553
550554 User enabled a plugin for their account.
from line 935
931935
932936 - `"inference_hooks_request_denied"`
933937
934 Inference hooks inspection denied a request. The request was blocked and no model response was produced.
938 Inference hooks inspection denied a request. The request was blocked.
935939
936940 - `"inference_hooks_request_failed_open"`
937941
from line 1673
16691673
16701674 An OAuth app was updated.
16711675
1676 - `"platform_organization_created"`
1677
1678 An owner of the organization created a Claude Console organization under the same parent organization.
1679
16721680 - `"platform_plugin_directory_submission_created"`
16731681
16741682 A plugin directory submission was created on the API platform. A plugin directory submission is a request to list a plugin in the public plugin directory.
from line 2140
21322140
21332141 format: date-time
21342142
2135- `exclude_activity_types: optional array of "abuse_decision_received" or "account_deleted" or "admin_api_key_created" or 511 more`
2143- `exclude_activity_types: optional array of "abuse_decision_received" or "account_deleted" or "admin_api_key_created" or 513 more`
21362144
21372145 Exclude activities of these types. Cannot be combined with `activity_types[]`.
21382146
from line 2668
26602668
26612669 User disabled a plugin for their account.
26622670
2671 - `"claude_plugin_downloaded"`
2672
2673 The archive of the plugin version a member was served was downloaded to install or update the plugin in one of the member's Claude apps (Claude in the browser, the Claude desktop app, Claude Code, or a cloud session).
2674
26632675 - `"claude_plugin_enabled"`
26642676
26652677 User enabled a plugin for their account.
from line 3058
30463058
30473059 - `"inference_hooks_request_denied"`
30483060
3049 Inference hooks inspection denied a request. The request was blocked and no model response was produced.
3061 Inference hooks inspection denied a request. The request was blocked.
30503062
30513063 - `"inference_hooks_request_failed_open"`
30523064
from line 3796
37843796
37853797 An OAuth app was updated.
37863798
3799 - `"platform_organization_created"`
3800
3801 An owner of the organization created a Claude Console organization under the same parent organization.
3802
37873803 - `"platform_plugin_directory_submission_created"`
37883804
37893805 A plugin directory submission was created on the API platform. A plugin directory submission is a request to list a plugin in the public plugin directory.
from line 4255
42394255
42404256### Returns
42414257
4242- `data: optional array of AbuseDecisionReceived or AccountDeleted or AdminAPIKeyCreated or 511 more`
4258- `data: optional array of AbuseDecisionReceived or AccountDeleted or AdminAPIKeyCreated or 513 more`
42434259
42444260 List of activity records. Each element's `type` field identifies which activity it is and which additional fields are present.
42454261
from line 8595
85798595
85808596 The published artifact's identifier.
85818597
8582 - `title: string`
8583
8584 Title of the published artifact
8585
85868598 - `id: optional string`
85878599
85888600 Unique identifier for the activity e.g. 'activity_abcd1234'
from line 8629
86178629
86188630 Organization UUID where the activity occurred. Null when the activity is not tied to an organization (for example, login and logout events or calls to the Compliance API).
86198631
8632 - `title: string`
8633
8634 **Deprecated**
8635
8636 No longer populated. For Code Artifacts (`claude_published_artifact_id` starts with `cart_`), find that artifact in List Code Artifacts: the title is the `name` of its `versions` entry whose `id` equals `claude_artifact_version_id`, while that version is still retained (a `name` equal to the version id means the title is no longer kept). For other artifacts, look up `claude_artifact_version_id` with Get artifact metadata. That id is absent when the publish isn't linked to an artifact version, and neither lookup works once the artifact is deleted.
8637
86208638 - `ClaudeArtifactSharingUpdated object`
86218639
86228640 An artifact's sharing settings were updated.
from line 9736
97189736
97199737 - `ServiceAccountActor object`
97209738
9721 - `type: optional "service_account_actor"`
9722
9723 default: service_account_actor
9724
9725 - `ip_address: string`
9726
9727 - `service_account_id: string`
9728
9729 - `user_agent: string`
9730
9731 - `ScimDirectorySyncActor object`
9732
9733 - `type: optional "scim_directory_sync_actor"`
9734
9735 default: scim_directory_sync_actor
9736
9737 - `directory_id: string`
9738
9739 - `workos_event_id: string`
9740
9741 - `idp_connection_type: optional string or null`
9742
9743 - `FederatedIdentityActor object`
9744
9745 A federated external workload authenticated via a verified OIDC token.
9746
9747 Carries the verified issuer, subject, and audience claims from the
9748 presented JWT.
9749
9750 - `type: optional "federated_identity_actor"`
9751
9752 default: federated_identity_actor
9753
9754 - `issuer: string`
9755
9756 - `subject: string`
9757
9758 - `audience: optional array of string`
9759
9760 - `ip_address: optional string or null`
9761
9762 - `user_agent: optional string or null`
9763
9764 - `FederatedActor object`
9765
9766 An external identity asserted by a trusted provider — a cloud-provider
9767 gateway or a customer-registered federation issuer — acting without an
9768 Anthropic-provisioned account or service account.
9769
9770 - `type: optional "federated_actor
9739
api/compliance/activities/list Changed · +1965 / -1281 lines
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from line 15
1515
1616## Query parameters
1717
18- `activity_types: optional array of "abuse_decision_received" or "account_deleted" or "admin_api_key_created" or 511 more`
18- `activity_types: optional array of "abuse_decision_received" or "account_deleted" or "admin_api_key_created" or 513 more`
1919
2020 Filter activities by type. See the response `data` schema for the additional fields each type returns. Cannot be combined with `exclude_activity_types[]`.
2121
from line 543
543543
544544 User disabled a plugin for their account.
545545
546 - `"claude_plugin_downloaded"`
547
548 The archive of the plugin version a member was served was downloaded to install or update the plugin in one of the member's Claude apps (Claude in the browser, the Claude desktop app, Claude Code, or a cloud session).
549
546550 - `"claude_plugin_enabled"`
547551
548552 User enabled a plugin for their account.
from line 933
929933
930934 - `"inference_hooks_request_denied"`
931935
932 Inference hooks inspection denied a request. The request was blocked and no model response was produced.
936 Inference hooks inspection denied a request. The request was blocked.
933937
934938 - `"inference_hooks_request_failed_open"`
935939
from line 1671
16671671
16681672 An OAuth app was updated.
16691673
1674 - `"platform_organization_created"`
1675
1676 An owner of the organization created a Claude Console organization under the same parent organization.
1677
16701678 - `"platform_plugin_directory_submission_created"`
16711679
16721680 A plugin directory submission was created on the API platform. A plugin directory submission is a request to list a plugin in the public plugin directory.
from line 2138
21302138
21312139 format: date-time
21322140
2133- `exclude_activity_types: optional array of "abuse_decision_received" or "account_deleted" or "admin_api_key_created" or 511 more`
2141- `exclude_activity_types: optional array of "abuse_decision_received" or "account_deleted" or "admin_api_key_created" or 513 more`
21342142
21352143 Exclude activities of these types. Cannot be combined with `activity_types[]`.
21362144
from line 2666
26582666
26592667 User disabled a plugin for their account.
26602668
2669 - `"claude_plugin_downloaded"`
2670
2671 The archive of the plugin version a member was served was downloaded to install or update the plugin in one of the member's Claude apps (Claude in the browser, the Claude desktop app, Claude Code, or a cloud session).
2672
26612673 - `"claude_plugin_enabled"`
26622674
26632675 User enabled a plugin for their account.
from line 3056
30443056
30453057 - `"inference_hooks_request_denied"`
30463058
3047 Inference hooks inspection denied a request. The request was blocked and no model response was produced.
3059 Inference hooks inspection denied a request. The request was blocked.
30483060
30493061 - `"inference_hooks_request_failed_open"`
30503062
from line 3794
37823794
37833795 An OAuth app was updated.
37843796
3797 - `"platform_organization_created"`
3798
3799 An owner of the organization created a Claude Console organization under the same parent organization.
3800
37853801 - `"platform_plugin_directory_submission_created"`
37863802
37873803 A plugin directory submission was created on the API platform. A plugin directory submission is a request to list a plugin in the public plugin directory.
from line 4253
42374253
42384254## Returns
42394255
4240- `data: optional array of AbuseDecisionReceived or AccountDeleted or AdminAPIKeyCreated or 511 more`
4256- `data: optional array of AbuseDecisionReceived or AccountDeleted or AdminAPIKeyCreated or 513 more`
42414257
42424258 List of activity records. Each element's `type` field identifies which activity it is and which additional fields are present.
42434259
from line 8593
85778593
85788594 The published artifact's identifier.
85798595
8580 - `title: string`
8581
8582 Title of the published artifact
8583
85848596 - `id: optional string`
85858597
85868598 Unique identifier for the activity e.g. 'activity_abcd1234'
from line 8627
86158627
86168628 Organization UUID where the activity occurred. Null when the activity is not tied to an organization (for example, login and logout events or calls to the Compliance API).
86178629
8630 - `title: string`
8631
8632 **Deprecated**
8633
8634 No longer populated. For Code Artifacts (`claude_published_artifact_id` starts with `cart_`), find that artifact in List Code Artifacts: the title is the `name` of its `versions` entry whose `id` equals `claude_artifact_version_id`, while that version is still retained (a `name` equal to the version id means the title is no longer kept). For other artifacts, look up `claude_artifact_version_id` with Get artifact metadata. That id is absent when the publish isn't linked to an artifact version, and neither lookup works once the artifact is deleted.
8635
86188636 - `ClaudeArtifactSharingUpdated object`
86198637
86208638 An artifact's sharing settings were updated.
from line 9734
97169734
97179735 - `ServiceAccountActor object`
97189736
9719 - `type: optional "service_account_actor"`
9720
9721 default: service_account_actor
9722
9723 - `ip_address: string`
9724
9725 - `service_account_id: string`
9726
9727 - `user_agent: string`
9728
9729 - `ScimDirectorySyncActor object`
9730
9731 - `type: optional "scim_directory_sync_actor"`
9732
9733 default: scim_directory_sync_actor
9734
9735 - `directory_id: string`
9736
9737 - `workos_event_id: string`
9738
9739 - `idp_connection_type: optional string or null`
9740
9741 - `FederatedIdentityActor object`
9742
9743 A federated external workload authenticated via a verified OIDC token.
9744
9745 Carries the verified issuer, subject, and audience claims from the
9746 presented JWT.
9747
9748 - `type: optional "federated_identity_actor"`
9749
9750 default: federated_identity_actor
9751
9752 - `issuer: string`
9753
9754 - `subject: string`
9755
9756 - `audience: optional array of string`
9757
9758 - `ip_address: optional string or null`
9759
9760 - `user_agent: optional string or null`
9761
9762 - `FederatedActor object`
9763
9764 An external identity asserted by a trusted provider — a cloud-provider
9765 gateway or a customer-registered federation issuer — acting without an
9766 Anthropic-provisioned account or service account.
9767
9768 - `type: optional "federated_a
9737
api/compliance/code Changed · +5 / -2 lines
from line 204
204204Returns 404 for Artifacts that don't exist or belong to another parent
205205organization. A listed version id can start returning 404 if subsequent
206206publishes rotated it out of retained history — re-list on 404. Returns
207503 while the version's content upload is
208still in flight or was abandoned — retry with backoff. Oversized
207503 while the version's content upload is still in flight or was
208abandoned — retry with backoff. Returns 422 for a version that has more
209than one file, because the Compliance API returns only single-file
210versions. Do not retry a 422. The 422's `error.details.error_code` is
211`multi_file_unavailable`. Oversized
209212encoded content aborts mid-stream: headers and initial bytes arrive
210213but the body terminates early — an aborted chunked transfer is the
211214only truncation signal for encoded content. `Content-MD5` is emitted
api/compliance/code/artifacts Changed · +5 / -2 lines
from line 202
202202Returns 404 for Artifacts that don't exist or belong to another parent
203203organization. A listed version id can start returning 404 if subsequent
204204publishes rotated it out of retained history — re-list on 404. Returns
205503 while the version's content upload is
206still in flight or was abandoned — retry with backoff. Oversized
205503 while the version's content upload is still in flight or was
206abandoned — retry with backoff. Returns 422 for a version that has more
207than one file, because the Compliance API returns only single-file
208versions. Do not retry a 422. The 422's `error.details.error_code` is
209`multi_file_unavailable`. Oversized
207210encoded content aborts mid-stream: headers and initial bytes arrive
208211but the body terminates early — an aborted chunked transfer is the
209212only truncation signal for encoded content. `Content-MD5` is emitted
api/compliance/code/artifacts/retrieve_version Changed · +5 / -2 lines
from line 13
1313Returns 404 for Artifacts that don't exist or belong to another parent
1414organization. A listed version id can start returning 404 if subsequent
1515publishes rotated it out of retained history — re-list on 404. Returns
16503 while the version's content upload is
17still in flight or was abandoned — retry with backoff. Oversized
16503 while the version's content upload is still in flight or was
17abandoned — retry with backoff. Returns 422 for a version that has more
18than one file, because the Compliance API returns only single-file
19versions. Do not retry a 422. The 422's `error.details.error_code` is
20`multi_file_unavailable`. Oversized
1821encoded content aborts mid-stream: headers and initial bytes arrive
1922but the body terminates early — an aborted chunked transfer is the
2023only truncation signal for encoded content. `Content-MD5` is emitted
api/messages Changed · +786 / -728 lines
### Thinking Config Between Tools
This page is larger than the 256 KiB this site keeps, so one side of the diff below stops where the stored text does.
from line 1075
10751075
10761076 See [models](https://docs.anthropic.com/en/docs/models-overview) for additional details and options.
10771077
1078 - `string`
1078 - `"claude-sonnet-5-5" or "claude-fable-5-1" or "claude-opus-5-5" or 16 more`
10791079
1080 - `"claude-fable-5-1" or "claude-opus-5-5" or "claude-mythos-5-1" or 15 more`
1081
10821080 The model that will complete your prompt.
10831081
10841082 See [models](https://docs.anthropic.com/en/docs/models-overview) for additional details and options.
10851083
1084 - `"claude-sonnet-5-5"`
1085
1086 Efficient model for coding and agents
1087
10861088 - `"claude-fable-5-1"`
10871089
10881090 Frontier intelligence for ambitious tasks across coding, scientific discovery, and enterprise workflows
from line 1099
10971099
10981100 - `"claude-sonnet-5"`
10991101
1100 High-performance model for coding and agents
1102 Efficient model for coding and agents
11011103
11021104 - `"claude-fable-5"`
11031105
from line 1159
11571159
11581160 New class of intelligence, strongest in coding and cybersecurity
11591161
1162 - `string`
1163
11601164- `cache_control: optional CacheControlEphemeral or null`
11611165
11621166 Top-level cache control automatically applies a cache_control marker to the last cacheable block in the request.
from line 1281
12771281
12781282- `stream: optional boolean`
12791283
1280 Whether to incrementally stream the response using server-sent events.
1284 Whether to incrementally stream the response using server-sent events. When `true`, SDKs return a raw event stream.
12811285
1282 See [streaming](https://platform.claude.com/docs/en/build-with-claude/streaming) for details.
1286 In the TypeScript, Python and Ruby SDKs, the recommended way to stream is `messages.stream()`. It sets `stream` for you and accumulates the events into the final message. See [Streaming with SDKs](https://platform.claude.com/docs/en/build-with-claude/streaming#streaming-with-sdks) for an example in each language.
12831287
12841288- `system: optional string or array of TextBlockParam`
12851289
from line 1341
13371341
13381342 - `type: "disabled"`
13391343
1344 - `ThinkingConfigBetweenTools object`
1345
1346 - `type: "between_tools"`
1347
13401348 - `ThinkingConfigAdaptive object`
13411349
13421350 - `type: "adaptive"`
from line 3922
39143922
39153923 See [models](https://docs.anthropic.com/en/docs/models-overview) for additional details and options.
39163924
3917 - `string`
3925 - `"claude-sonnet-5-5" or "claude-fable-5-1" or "claude-opus-5-5" or 16 more`
39183926
3919 - `"claude-fable-5-1" or "claude-opus-5-5" or "claude-mythos-5-1" or 15 more`
3920
39213927 The model that will complete your prompt.
39223928
39233929 See [models](https://docs.anthropic.com/en/docs/models-overview) for additional details and options.
39243930
3931 - `"claude-sonnet-5-5"`
3932
3933 Efficient model for coding and agents
3934
39253935 - `"claude-fable-5-1"`
39263936
39273937 Frontier intelligence for ambitious tasks across coding, scientific discovery, and enterprise workflows
from line 3946
39363946
39373947 - `"claude-sonnet-5"`
39383948
3939 High-performance model for coding and agents
3949 Efficient model for coding and agents
39403950
39413951 - `"claude-fable-5"`
39423952
from line 4006
39964006
39974007 New class of intelligence, strongest in coding and cybersecurity
39984008
4009 - `string`
4010
39994011 - `role: "assistant"`
40004012
40014013 Conversational role of the generated message.
from line 5570
55585570
55595571 See [models](https://docs.anthropic.com/en/docs/models-overview) for additional details and options.
55605572
5561 - `string`
5573 - `"claude-sonnet-5-5" or "claude-fable-5-1" or "claude-opus-5-5" or 16 more`
55625574
5563 - `"claude-fable-5-1" or "claude-opus-5-5" or "claude-mythos-5-1" or 15 more`
5564
55655575 The model that will complete your prompt.
55665576
55675577 See [models](https://docs.anthropic.com/en/docs/models-overview) for additional details and options.
55685578
5579 - `"claude-sonnet-5-5"`
5580
5581 Efficient model for coding and agents
5582
55695583 - `"claude-fable-5-1"`
55705584
55715585 Frontier intelligence for ambitious tasks across coding, scientific discovery, and enterprise workflows
from line 5594
55805594
55815595 - `"claude-sonnet-5"`
55825596
5583 High-performance model for coding and agents
5597 Efficient model for coding and agents
55845598
55855599 - `"claude-fable-5"`
55865600
from line 5654
56405654
56415655 New class of intelligence, strongest in coding and cybersecurity
56425656
5657 - `string`
5658
56435659- `cache_control: optional CacheControlEphemeral or null`
56445660
56455661 Top-level cache control automatically applies a cache_control marker to the last cacheable block in the request.
from line 5746
57305746
57315747 - `type: "disabled"`
57325748
5749 - `ThinkingConfigBetweenTools object`
5750
5751 - `type: "between_tools"`
5752
57335753 - `ThinkingConfigAdaptive object`
57345754
57355755 - `type: "adaptive"`
from line 8419
83998419
84008420 - `path: optional string or null`
84018421
8402 Where the executor saved the file, on the executor's filesystem. Only included when another tool in the same environment can read the file at that path.
8403
8404 maxLength: 4096, pattern: ^[^\x00-\x1f\x7f-\x9f\u2028\u2029]*$
8405
8406 - `size_bytes: optional number or null`
8407
8408 The completed download's size.
8409
8410 minimum: 0
8411
8412### Browser State Change Download Failed
8413
8414- `BrowserStateChangeDownloadFailed object`
8415
8416 A file download that failed — or was cancelled — during this call.
8417
8418 - `type: "download_failed"`
8419
8420 - `download_id: string`
8421
8422 The caller-assigned identifier for this download, stable across the state changes reporting it.
8423
8424 minLength: 1, maxLength: 4096, pattern: ^[^\x00-\x1f\x7f-\x
8422 Where the executor saved the file, on the executor's filesystem. Only included when a
api/messages/batches Changed · +427 / -403 lines
This page is larger than the 256 KiB this site keeps, so one side of the diff below stops where the stored text does.
from line 1095
10951095
10961096 See [models](https://docs.anthropic.com/en/docs/models-overview) for additional details and options.
10971097
1098 - `string`
1098 - `"claude-sonnet-5-5" or "claude-fable-5-1" or "claude-opus-5-5" or 16 more`
10991099
1100 - `"claude-fable-5-1" or "claude-opus-5-5" or "claude-mythos-5-1" or 15 more`
1101
11021100 The model that will complete your prompt.
11031101
11041102 See [models](https://docs.anthropic.com/en/docs/models-overview) for additional details and options.
11051103
1104 - `"claude-sonnet-5-5"`
1105
1106 Efficient model for coding and agents
1107
11061108 - `"claude-fable-5-1"`
11071109
11081110 Frontier intelligence for ambitious tasks across coding, scientific discovery, and enterprise workflows
from line 1119
11171119
11181120 - `"claude-sonnet-5"`
11191121
1120 High-performance model for coding and agents
1122 Efficient model for coding and agents
11211123
11221124 - `"claude-fable-5"`
11231125
from line 1179
11771179
11781180 New class of intelligence, strongest in coding and cybersecurity
11791181
1182 - `string`
1183
11801184 - `cache_control: optional CacheControlEphemeral or null`
11811185
11821186 Top-level cache control automatically applies a cache_control marker to the last cacheable block in the request.
from line 1301
12971301
12981302 - `stream: optional boolean`
12991303
1300 Whether to incrementally stream the response using server-sent events.
1304 Whether to incrementally stream the response using server-sent events. When `true`, SDKs return a raw event stream.
13011305
1302 See [streaming](https://platform.claude.com/docs/en/build-with-claude/streaming) for details.
1306 In the TypeScript, Python and Ruby SDKs, the recommended way to stream is `messages.stream()`. It sets `stream` for you and accumulates the events into the final message. See [Streaming with SDKs](https://platform.claude.com/docs/en/build-with-claude/streaming#streaming-with-sdks) for an example in each language.
13031307
13041308 - `system: optional string or array of TextBlockParam`
13051309
from line 1361
13571361
13581362 - `type: "disabled"`
13591363
1364 - `ThinkingConfigBetweenTools object`
1365
1366 - `type: "between_tools"`
1367
13601368 - `ThinkingConfigAdaptive object`
13611369
13621370 - `type: "adaptive"`
from line 4728
47204728
47214729 See [models](https://docs.anthropic.com/en/docs/models-overview) for additional details and options.
47224730
4723 - `string`
4731 - `"claude-sonnet-5-5" or "claude-fable-5-1" or "claude-opus-5-5" or 16 more`
47244732
4725 - `"claude-fable-5-1" or "claude-opus-5-5" or "claude-mythos-5-1" or 15 more`
4726
47274733 The model that will complete your prompt.
47284734
47294735 See [models](https://docs.anthropic.com/en/docs/models-overview) for additional details and options.
47304736
4737 - `"claude-sonnet-5-5"`
4738
4739 Efficient model for coding and agents
4740
47314741 - `"claude-fable-5-1"`
47324742
47334743 Frontier intelligence for ambitious tasks across coding, scientific discovery, and enterprise workflows
from line 4752
47424752
47434753 - `"claude-sonnet-5"`
47444754
4745 High-performance model for coding and agents
4755 Efficient model for coding and agents
47464756
47474757 - `"claude-fable-5"`
47484758
from line 4812
48024812
48034813 New class of intelligence, strongest in coding and cybersecurity
48044814
4815 - `string`
4816
48054817 - `role: "assistant"`
48064818
48074819 Conversational role of the generated message.
from line 6243
62316243
62326244 See [models](https://docs.anthropic.com/en/docs/models-overview) for additional details and options.
62336245
6234 - `string`
6246 - `"claude-sonnet-5-5" or "claude-fable-5-1" or "claude-opus-5-5" or 16 more`
62356247
6236 - `"claude-fable-5-1" or "claude-opus-5-5" or "claude-mythos-5-1" or 15 more`
6237
62386248 The model that will complete your prompt.
62396249
62406250 See [models](https://docs.anthropic.com/en/docs/models-overview) for additional details and options.
62416251
6252 - `"claude-sonnet-5-5"`
6253
6254 Efficient model for coding and agents
6255
62426256 - `"claude-fable-5-1"`
62436257
62446258 Frontier intelligence for ambitious tasks across coding, scientific discovery, and enterprise workflows
from line 6267
62536267
62546268 - `"claude-sonnet-5"`
62556269
6256 High-performance model for coding and agents
6270 Efficient model for coding and agents
62576271
62586272 - `"claude-fable-5"`
62596273
from line 6327
63136327
63146328 New class of intelligence, strongest in coding and cybersecurity
63156329
6330 - `string`
6331
63166332 - `role: "assistant"`
63176333
63186334 Conversational role of the generated message.
from line 7530
75147530
75157531 See [models](https://docs.anthropic.com/en/docs/models-overview) for additional details and options.
75167532
7517 - `string`
7533 - `"claude-sonnet-5-5" or "claude-fable-5-1" or "claude-opus-5-5" or 16 more`
75187534
7519 - `"claude-fable-5-1" or "claude-opus-5-5" or "claude-mythos-5-1" or 15 more`
7520
75217535 The model that will complete your prompt.
75227536
75237537 See [models](https://docs.anthropic.com/en/docs/models-overview) for additional details and options.
75247538
7539 - `"claude-sonnet-5-5"`
7540
7541 Efficient model for coding and agents
7542
75257543 - `"claude-fable-5-1"`
75267544
75277545 Frontier intelligence for ambitious tasks across coding, scientific discovery, and enterprise workflows
from line 7554
75367554
75377555 - `"claude-sonnet-5"`
75387556
7539 High-performance model for coding and agents
7557 Efficient model for coding and agents
75407558
75417559 - `"claude-fable-5"`
75427560
from line 7614
75967614
75977615 New class of intelligence, strongest in coding and cybersecurity
75987616
7617 - `string`
7618
75997619 - `role: "assistant"`
76007620
76017621 Conversational role of the generated message.
from line 8719
86998719
87008720 - `cache_missed_input_tokens: number`
87018721
8702 Approximate number of input tokens that would have been read from cache had the prefix matched the previous request.
8703
8704 - `CacheMissSystemChanged object`
8705
8706 - `type: "system_changed"`
8707
8708 default: system_changed
8709
8710 - `cache_missed_input_tokens: number`
8711
8712 Approximate number of input tokens that would have been read from cache had the prefix matched the previous request.
8713
8714 - `CacheMissToolsChanged object`
8715
8716 - `type: "tools_changed"`
8717
8718 default: tools_changed
8719
8720 - `cache_missed_input_tokens: number`
8721
8722 Approximate number of input tokens that would have been read from cache had the prefix matched the previous request.
8723
8724 - `CacheMissMessagesChanged object`
8725
8726 - `type
8722 Approximate number of input tokens that would have been read from cache had the prefix matched the previo
api/messages/batches/create Changed · +91 / -83 lines
from line 1093
10931093
10941094 See [models](https://docs.anthropic.com/en/docs/models-overview) for additional details and options.
10951095
1096 - `string`
1096 - `"claude-sonnet-5-5" or "claude-fable-5-1" or "claude-opus-5-5" or 16 more`
10971097
1098 - `"claude-fable-5-1" or "claude-opus-5-5" or "claude-mythos-5-1" or 15 more`
1099
11001098 The model that will complete your prompt.
11011099
11021100 See [models](https://docs.anthropic.com/en/docs/models-overview) for additional details and options.
11031101
1102 - `"claude-sonnet-5-5"`
1103
1104 Efficient model for coding and agents
1105
11041106 - `"claude-fable-5-1"`
11051107
11061108 Frontier intelligence for ambitious tasks across coding, scientific discovery, and enterprise workflows
from line 1117
11151117
11161118 - `"claude-sonnet-5"`
11171119
1118 High-performance model for coding and agents
1120 Efficient model for coding and agents
11191121
11201122 - `"claude-fable-5"`
11211123
from line 1177
11751177
11761178 New class of intelligence, strongest in coding and cybersecurity
11771179
1180 - `string`
1181
11781182 - `cache_control: optional CacheControlEphemeral or null`
11791183
11801184 Top-level cache control automatically applies a cache_control marker to the last cacheable block in the request.
from line 1299
12951299
12961300 - `stream: optional boolean`
12971301
1298 Whether to incrementally stream the response using server-sent events.
1302 Whether to incrementally stream the response using server-sent events. When `true`, SDKs return a raw event stream.
12991303
1300 See [streaming](https://platform.claude.com/docs/en/build-with-claude/streaming) for details.
1304 In the TypeScript, Python and Ruby SDKs, the recommended way to stream is `messages.stream()`. It sets `stream` for you and accumulates the events into the final message. See [Streaming with SDKs](https://platform.claude.com/docs/en/build-with-claude/streaming#streaming-with-sdks) for an example in each language.
13011305
13021306 - `system: optional string or array of TextBlockParam`
13031307
from line 1358
13541358 - `ThinkingConfigDisabled object`
13551359
13561360 - `type: "disabled"`
1361
1362 - `ThinkingConfigBetweenTools object`
1363
1364 - `type: "between_tools"`
13571365
13581366 - `ThinkingConfigAdaptive object`
13591367
api/messages/batches/results Changed · +84 / -80 lines
from line 888
888888
889889 See [models](https://docs.anthropic.com/en/docs/models-overview) for additional details and options.
890890
891 - `string`
891 - `"claude-sonnet-5-5" or "claude-fable-5-1" or "claude-opus-5-5" or 16 more`
892892
893 - `"claude-fable-5-1" or "claude-opus-5-5" or "claude-mythos-5-1" or 15 more`
894
895893 The model that will complete your prompt.
896894
897895 See [models](https://docs.anthropic.com/en/docs/models-overview) for additional details and options.
898896
897 - `"claude-sonnet-5-5"`
898
899 Efficient model for coding and agents
900
899901 - `"claude-fable-5-1"`
900902
901903 Frontier intelligence for ambitious tasks across coding, scientific discovery, and enterprise workflows
from line 912
910912
911913 - `"claude-sonnet-5"`
912914
913 High-performance model for coding and agents
915 Efficient model for coding and agents
914916
915917 - `"claude-fable-5"`
916918
from line 971
969971 **Deprecated**: Will reach end-of-life on June 30, 2026. Please migrate to claude-mythos-5. Visit https://docs.anthropic.com/en/docs/resources/model-deprecations for more information.
970972
971973 New class of intelligence, strongest in coding and cybersecurity
974
975 - `string`
972976
973977 - `role: "assistant"`
974978