Sweep 22 Sep 2026 · 17:19Z Build v2.1.280 501 read Stable v2.1.267 Latest v2.1.280 Next v2.1.280 Feeds RSS JSON llms.txt Unofficial
One change · api

List Message Batches changed

api/beta/messages/batches/list

Nearest release: v2.1.268, published under an hour after this site recorded the change. Shown because the two are within 24 hours of each other. Nothing here says the release caused the edit.

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Lines+18added
Lines−9removed
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First seen 14 Aug 2026 this site's first read of the page
Recorded edits8to this page, all time

The whole hunk

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1---
2title: List Message Batches
3url: https://platform.claude.com/docs/en/api/beta/messages/batches/list
4---
5 
16# List Message Batches
27 
38**GET** `/v1/messages/batches`
from line 37
3237 
3338 - `string`
3439 
35 - `"message-batches-2024-09-24" or "prompt-caching-2024-07-31" or "computer-use-2024-10-22" or 41 more`
40 - `"message-batches-2024-09-24" or "prompt-caching-2024-07-31" or "computer-use-2024-10-22" or 42 more`
3641 
3742 - `"message-batches-2024-09-24"`
3843 
from line 85
8085 
8186 - `"user-profiles-2026-08-18"`
8287 
88 - `"user-profiles-2026-09-04"`
89 
8390 - `"advisor-tool-2026-03-01"`
8491 
8592 - `"managed-agents-2026-04-01"`
from line 129
122129 
123130 - `"mid-conversation-system-clear-at-2026-08-21"`
124131 
132- `"anthropic-workspace-id": optional string`
133 
125134## Returns
126135 
127136- `data: array of BetaMessageBatch`
128137 
138 - `type: "message_batch"`
139 
140 Object type.
141 
142 For Message Batches, this is always `"message_batch"`.
143 
144 default: message_batch
145 
129146 - `id: string`
130147 
131148 Unique object identifier.
from line 240
223240 URL to a `.jsonl` file containing the results of the Message Batch requests. Specified only once processing ends.
224241 
225242 Results in the file are not guaranteed to be in the same order as requests. Use the `custom_id` field to match results to requests.
226 
227 - `type: "message_batch"`
228 
229 Object type.
230 
231 For Message Batches, this is always `"message_batch"`.
232 
233 default: message_batch
234243 
235244- `first_id: string or null`
236245