Get Session Thread changedapi/beta/sessions/threads/retrieve
Nearest release: v2.1.281, published an hour before this site recorded the change. Shown because the two are within 24 hours of each other. Nothing here says the release caused the edit.
Recorded here
Lines+10added
Lines−2removed
From line
23
where the diff opens
First seen
14 Aug 2026
this site's first read of the page
Recorded edits11to this page, all time
The whole hunk
from line 23, old and new numbered
/
from line 23
2323
2424 - `string`
2525
26 - `"message-batches-2024-09-24" or "prompt-caching-2024-07-31" or "computer-use-2024-10-22" or 43 more`
26 - `"message-batches-2024-09-24" or "prompt-caching-2024-07-31" or "computer-use-2024-10-22" or 45 more`
2727
2828 - `"message-batches-2024-09-24"`
2929
from line 117
117117
118118 - `"compact-2026-09-04"`
119119
120 - `"inline-tools-2026-09-15"`
121
122 - `"mcp-client-2026-09-15"`
123
120124- `"anthropic-workspace-id": optional string`
121125
122126 Optional header to select the Workspace for this request. The value is a Workspace ID (for example, `wrkspc_011CZkZaBF1tNoB5wlCeusgy`).
from line 171
167171
168172 See [models](https://docs.anthropic.com/en/docs/models-overview) for additional details and options.
169173
170 - `"claude-fable-5-1" or "claude-sonnet-5" or "claude-fable-5" or 11 more`
174 - `"claude-opus-5-5" or "claude-fable-5-1" or "claude-sonnet-5" or 12 more`
171175
172176 The model that will power your agent.
173177
174178 See [models](https://docs.anthropic.com/en/docs/models-overview) for additional details and options.
179
180 - `"claude-opus-5-5"`
181
182 Powerful intelligence for coding, knowledge work, and long-running agents
175183
176184 - `"claude-fable-5-1"`
177185
No line in this hunk matches that.