HomeDocs changes
Documentation changes
What the docs quietly changed.
Anthropic's published documentation, fetched on a schedule and diffed against the last copy. Every edit dated, including the ones that never made a release note.
Last poll read all 4 cleanly: Claude Code CLI, Claude Developer Platform, Claude Documentation, Model Context Protocol. A date here is when this site noticed, not when Anthropic edited.
Claude Developer Platform
808pages tracked
587 changed this week · last read 22 Oct 2026
Claude Code CLI
228pages tracked
146 changed this week · last read 22 Oct 2026
Claude Documentation
278pages tracked
74 changed this week · last read 22 Oct 2026
Model Context Protocol
357pages tracked
163 changed this week · last read 21 Oct 2026
100 on this page
9,144 of the ledger's changes in api. Show every change
ReadSourcePageWhatLines
20 Aug 2026
249 pages
+37629 −7361 lines
api
api/beta/files/upload
±changed
+4−2
apichanged
api/beta/files/upload
- `"message-batches-2024-09-24" or "prompt-caching-2024-07-31" or "computer-use-2024-10-22" or 30 more`
- `"message-batches-2024-09-24" or "prompt-caching-2024-07-31" or "computer-use-2024-10-22" or 31 more`
- `"user-profiles-2026-08-18"`
- `FileMetadata object { id, created_at, filename, 5 more }`
+4 −2 lines
Recorded here 20 Aug 2026 17:07 UTC
api
api/beta/files/retrieve_metadata
±changed
+4−2
apichanged
api/beta/files/retrieve_metadata
- `"message-batches-2024-09-24" or "prompt-caching-2024-07-31" or "computer-use-2024-10-22" or 30 more`
- `"message-batches-2024-09-24" or "prompt-caching-2024-07-31" or "computer-use-2024-10-22" or 31 more`
- `"user-profiles-2026-08-18"`
- `FileMetadata object { id, created_at, filename, 5 more }`
+4 −2 lines
Recorded here 20 Aug 2026 17:07 UTC
api
api/beta/files/list
±changed
+4−2
apichanged
api/beta/files/list
- `"message-batches-2024-09-24" or "prompt-caching-2024-07-31" or "computer-use-2024-10-22" or 30 more`
- `"message-batches-2024-09-24" or "prompt-caching-2024-07-31" or "computer-use-2024-10-22" or 31 more`
- `"user-profiles-2026-08-18"`
- `data: array of FileMetadata`
+4 −2 lines
Recorded here 20 Aug 2026 17:07 UTC
api
api/beta/files/download
±changed
+3−1
apichanged
api/beta/files/download
- `"message-batches-2024-09-24" or "prompt-caching-2024-07-31" or "computer-use-2024-10-22" or 30 more`
- `"message-batches-2024-09-24" or "prompt-caching-2024-07-31" or "computer-use-2024-10-22" or 31 more`
- `"user-profiles-2026-08-18"`
+3 −1 lines
Recorded here 20 Aug 2026 17:07 UTC
api
api/beta/files/delete
±changed
+4−2
apichanged
api/beta/files/delete
- `"message-batches-2024-09-24" or "prompt-caching-2024-07-31" or "computer-use-2024-10-22" or 30 more`
- `"message-batches-2024-09-24" or "prompt-caching-2024-07-31" or "computer-use-2024-10-22" or 31 more`
- `"user-profiles-2026-08-18"`
- `DeletedFile object { id, type }`
+4 −2 lines
Recorded here 20 Aug 2026 17:07 UTC
api
api/beta/files
±changed
+87−77
apichanged
api/beta/files
- `"message-batches-2024-09-24" or "prompt-caching-2024-07-31" or "computer-use-2024-10-22" or 30 more`
- `"message-batches-2024-09-24" or "prompt-caching-2024-07-31" or "computer-use-2024-10-22" or 31 more`
- `"user-profiles-2026-08-18"`
- `FileMetadata object { id, created_at, filename, 5 more }`
+87 −77 lines
Recorded here 20 Aug 2026 17:07 UTC
api
api/beta/environments/work/update
±changed
+3−1
apichanged
api/beta/environments/work/update
- `"message-batches-2024-09-24" or "prompt-caching-2024-07-31" or "computer-use-2024-10-22" or 30 more`
- `"message-batches-2024-09-24" or "prompt-caching-2024-07-31" or "computer-use-2024-10-22" or 31 more`
- `"user-profiles-2026-08-18"`
+3 −1 lines
Recorded here 20 Aug 2026 17:07 UTC
api
api/beta/environments/work/stop
±changed
+3−1
apichanged
api/beta/environments/work/stop
- `"message-batches-2024-09-24" or "prompt-caching-2024-07-31" or "computer-use-2024-10-22" or 30 more`
- `"message-batches-2024-09-24" or "prompt-caching-2024-07-31" or "computer-use-2024-10-22" or 31 more`
- `"user-profiles-2026-08-18"`
+3 −1 lines
Recorded here 20 Aug 2026 17:07 UTC
api
api/beta/environments/work/stats
±changed
+3−1
apichanged
api/beta/environments/work/stats
- `"message-batches-2024-09-24" or "prompt-caching-2024-07-31" or "computer-use-2024-10-22" or 30 more`
- `"message-batches-2024-09-24" or "prompt-caching-2024-07-31" or "computer-use-2024-10-22" or 31 more`
- `"user-profiles-2026-08-18"`
+3 −1 lines
Recorded here 20 Aug 2026 17:07 UTC
api
api/beta/environments/work/retrieve
±changed
+3−1
apichanged
api/beta/environments/work/retrieve
- `"message-batches-2024-09-24" or "prompt-caching-2024-07-31" or "computer-use-2024-10-22" or 30 more`
- `"message-batches-2024-09-24" or "prompt-caching-2024-07-31" or "computer-use-2024-10-22" or 31 more`
- `"user-profiles-2026-08-18"`
+3 −1 lines
Recorded here 20 Aug 2026 17:07 UTC
api
api/beta/environments/work/poll
±changed
+3−1
apichanged
api/beta/environments/work/poll
- `"message-batches-2024-09-24" or "prompt-caching-2024-07-31" or "computer-use-2024-10-22" or 30 more`
- `"message-batches-2024-09-24" or "prompt-caching-2024-07-31" or "computer-use-2024-10-22" or 31 more`
- `"user-profiles-2026-08-18"`
+3 −1 lines
Recorded here 20 Aug 2026 17:07 UTC
api
api/beta/environments/work/list
±changed
+3−1
apichanged
api/beta/environments/work/list
- `"message-batches-2024-09-24" or "prompt-caching-2024-07-31" or "computer-use-2024-10-22" or 30 more`
- `"message-batches-2024-09-24" or "prompt-caching-2024-07-31" or "computer-use-2024-10-22" or 31 more`
- `"user-profiles-2026-08-18"`
+3 −1 lines
Recorded here 20 Aug 2026 17:07 UTC
api
api/beta/environments/work/heartbeat
±changed
+3−1
apichanged
api/beta/environments/work/heartbeat
- `"message-batches-2024-09-24" or "prompt-caching-2024-07-31" or "computer-use-2024-10-22" or 30 more`
- `"message-batches-2024-09-24" or "prompt-caching-2024-07-31" or "computer-use-2024-10-22" or 31 more`
- `"user-profiles-2026-08-18"`
+3 −1 lines
Recorded here 20 Aug 2026 17:07 UTC
api
api/beta/environments/work/ack
±changed
+3−1
apichanged
api/beta/environments/work/ack
- `"message-batches-2024-09-24" or "prompt-caching-2024-07-31" or "computer-use-2024-10-22" or 30 more`
- `"message-batches-2024-09-24" or "prompt-caching-2024-07-31" or "computer-use-2024-10-22" or 31 more`
- `"user-profiles-2026-08-18"`
+3 −1 lines
Recorded here 20 Aug 2026 17:07 UTC
api
api/beta/environments/work
±changed
+24−8
apichanged
api/beta/environments/work
- `"message-batches-2024-09-24" or "prompt-caching-2024-07-31" or "computer-use-2024-10-22" or 30 more`
- `"message-batches-2024-09-24" or "prompt-caching-2024-07-31" or "computer-use-2024-10-22" or 31 more`
- `"user-profiles-2026-08-18"`
- `"message-batches-2024-09-24" or "prompt-caching-2024-07-31" or "computer-use-2024-10-22" or 30 more`
+24 −8 lines
Recorded here 20 Aug 2026 17:07 UTC
api
api/beta/environments/update
±changed
+7−5
apichanged
api/beta/environments/update
- `"message-batches-2024-09-24" or "prompt-caching-2024-07-31" or "computer-use-2024-10-22" or 30 more`
- `"message-batches-2024-09-24" or "prompt-caching-2024-07-31" or "computer-use-2024-10-22" or 31 more`
- `"user-profiles-2026-08-18"`
Updated description of the environment
+7 −5 lines
Recorded here 20 Aug 2026 17:07 UTC
api
api/beta/environments/retrieve
±changed
+6−4
apichanged
api/beta/environments/retrieve
- `"message-batches-2024-09-24" or "prompt-caching-2024-07-31" or "computer-use-2024-10-22" or 30 more`
- `"message-batches-2024-09-24" or "prompt-caching-2024-07-31" or "computer-use-2024-10-22" or 31 more`
- `"user-profiles-2026-08-18"`
- `description: string`
+6 −4 lines
Recorded here 20 Aug 2026 17:07 UTC
api
api/beta/environments/list
±changed
+6−4
apichanged
api/beta/environments/list
- `"message-batches-2024-09-24" or "prompt-caching-2024-07-31" or "computer-use-2024-10-22" or 30 more`
- `"message-batches-2024-09-24" or "prompt-caching-2024-07-31" or "computer-use-2024-10-22" or 31 more`
- `"user-profiles-2026-08-18"`
- `description: string`
+6 −4 lines
Recorded here 20 Aug 2026 17:07 UTC
api
api/beta/environments/delete
±changed
+3−1
apichanged
api/beta/environments/delete
- `"message-batches-2024-09-24" or "prompt-caching-2024-07-31" or "computer-use-2024-10-22" or 30 more`
- `"message-batches-2024-09-24" or "prompt-caching-2024-07-31" or "computer-use-2024-10-22" or 31 more`
- `"user-profiles-2026-08-18"`
+3 −1 lines
Recorded here 20 Aug 2026 17:07 UTC
api
api/beta/environments/create
±changed
+6−4
apichanged
api/beta/environments/create
- `"message-batches-2024-09-24" or "prompt-caching-2024-07-31" or "computer-use-2024-10-22" or 30 more`
- `"message-batches-2024-09-24" or "prompt-caching-2024-07-31" or "computer-use-2024-10-22" or 31 more`
- `"user-profiles-2026-08-18"`
- `description: string`
+6 −4 lines
Recorded here 20 Aug 2026 17:07 UTC
api
api/beta/environments/archive
±changed
+6−4
apichanged
api/beta/environments/archive
- `"message-batches-2024-09-24" or "prompt-caching-2024-07-31" or "computer-use-2024-10-22" or 30 more`
- `"message-batches-2024-09-24" or "prompt-caching-2024-07-31" or "computer-use-2024-10-22" or 31 more`
- `"user-profiles-2026-08-18"`
- `description: string`
+6 −4 lines
Recorded here 20 Aug 2026 17:07 UTC
api
api/beta/environments
±changed
+61−33
apichanged
api/beta/environments
- `"message-batches-2024-09-24" or "prompt-caching-2024-07-31" or "computer-use-2024-10-22" or 30 more`
- `"message-batches-2024-09-24" or "prompt-caching-2024-07-31" or "computer-use-2024-10-22" or 31 more`
- `"user-profiles-2026-08-18"`
- `description: string`
+61 −33 lines
Recorded here 20 Aug 2026 17:07 UTC
api
api/beta/dreams/retrieve
±changed
+33−6
apichanged
api/beta/dreams/retrieve
- `"message-batches-2024-09-24" or "prompt-caching-2024-07-31" or "computer-use-2024-10-22" or 30 more`
- `"message-batches-2024-09-24" or "prompt-caching-2024-07-31" or "computer-use-2024-10-22" or 31 more`
- `"user-profiles-2026-08-18"`
- `BetaDream object { id, archived_at, created_at, 10 more }`
+33 −6 lines
Recorded here 20 Aug 2026 17:07 UTC
api
api/beta/dreams/list
±changed
+30−3
apichanged
api/beta/dreams/list
- `"message-batches-2024-09-24" or "prompt-caching-2024-07-31" or "computer-use-2024-10-22" or 30 more`
- `"message-batches-2024-09-24" or "prompt-caching-2024-07-31" or "computer-use-2024-10-22" or 31 more`
- `"user-profiles-2026-08-18"`
An input memory store the dream reads from. The dream never mutates this store.
+30 −3 lines
Recorded here 20 Aug 2026 17:07 UTC
api
api/beta/dreams/create
±changed
+57−8
apichanged
api/beta/dreams/create
- `"message-batches-2024-09-24" or "prompt-caching-2024-07-31" or "computer-use-2024-10-22" or 30 more`
- `"message-batches-2024-09-24" or "prompt-caching-2024-07-31" or "computer-use-2024-10-22" or 31 more`
- `"user-profiles-2026-08-18"`
An input memory store the dream reads from. The dream never mutates this store.
+57 −8 lines
Recorded here 20 Aug 2026 17:07 UTC
api
api/beta/dreams/cancel
±changed
+33−6
apichanged
api/beta/dreams/cancel
- `"message-batches-2024-09-24" or "prompt-caching-2024-07-31" or "computer-use-2024-10-22" or 30 more`
- `"message-batches-2024-09-24" or "prompt-caching-2024-07-31" or "computer-use-2024-10-22" or 31 more`
- `"user-profiles-2026-08-18"`
- `BetaDream object { id, archived_at, created_at, 10 more }`
+33 −6 lines
Recorded here 20 Aug 2026 17:07 UTC
api
api/beta/dreams/archive
±changed
+33−6
apichanged
api/beta/dreams/archive
- `"message-batches-2024-09-24" or "prompt-caching-2024-07-31" or "computer-use-2024-10-22" or 30 more`
- `"message-batches-2024-09-24" or "prompt-caching-2024-07-31" or "computer-use-2024-10-22" or 31 more`
- `"user-profiles-2026-08-18"`
- `BetaDream object { id, archived_at, created_at, 10 more }`
+33 −6 lines
Recorded here 20 Aug 2026 17:07 UTC
api
api/beta/dreams
±changed
+264−39
apichanged
api/beta/dreams
- `"message-batches-2024-09-24" or "prompt-caching-2024-07-31" or "computer-use-2024-10-22" or 30 more`
- `"message-batches-2024-09-24" or "prompt-caching-2024-07-31" or "computer-use-2024-10-22" or 31 more`
- `"user-profiles-2026-08-18"`
An input memory store the dream reads from. The dream never mutates this store.
+264 −39 lines
Recorded here 20 Aug 2026 17:07 UTC
api
api/beta/deployments/update
±changed
+3−1
apichanged
api/beta/deployments/update
- `"message-batches-2024-09-24" or "prompt-caching-2024-07-31" or "computer-use-2024-10-22" or 30 more`
- `"message-batches-2024-09-24" or "prompt-caching-2024-07-31" or "computer-use-2024-10-22" or 31 more`
- `"user-profiles-2026-08-18"`
+3 −1 lines
Recorded here 20 Aug 2026 17:07 UTC
api
api/beta/deployments/unpause
±changed
+3−1
apichanged
api/beta/deployments/unpause
- `"message-batches-2024-09-24" or "prompt-caching-2024-07-31" or "computer-use-2024-10-22" or 30 more`
- `"message-batches-2024-09-24" or "prompt-caching-2024-07-31" or "computer-use-2024-10-22" or 31 more`
- `"user-profiles-2026-08-18"`
+3 −1 lines
Recorded here 20 Aug 2026 17:07 UTC
api
api/beta/deployments/run
±changed
+3−1
apichanged
api/beta/deployments/run
- `"message-batches-2024-09-24" or "prompt-caching-2024-07-31" or "computer-use-2024-10-22" or 30 more`
- `"message-batches-2024-09-24" or "prompt-caching-2024-07-31" or "computer-use-2024-10-22" or 31 more`
- `"user-profiles-2026-08-18"`
+3 −1 lines
Recorded here 20 Aug 2026 17:07 UTC
api
api/beta/deployments/retrieve
±changed
+3−1
apichanged
api/beta/deployments/retrieve
- `"message-batches-2024-09-24" or "prompt-caching-2024-07-31" or "computer-use-2024-10-22" or 30 more`
- `"message-batches-2024-09-24" or "prompt-caching-2024-07-31" or "computer-use-2024-10-22" or 31 more`
- `"user-profiles-2026-08-18"`
+3 −1 lines
Recorded here 20 Aug 2026 17:07 UTC
api
api/beta/deployments/pause
±changed
+3−1
apichanged
api/beta/deployments/pause
- `"message-batches-2024-09-24" or "prompt-caching-2024-07-31" or "computer-use-2024-10-22" or 30 more`
- `"message-batches-2024-09-24" or "prompt-caching-2024-07-31" or "computer-use-2024-10-22" or 31 more`
- `"user-profiles-2026-08-18"`
+3 −1 lines
Recorded here 20 Aug 2026 17:07 UTC
api
api/beta/deployments/list
±changed
+3−1
apichanged
api/beta/deployments/list
- `"message-batches-2024-09-24" or "prompt-caching-2024-07-31" or "computer-use-2024-10-22" or 30 more`
- `"message-batches-2024-09-24" or "prompt-caching-2024-07-31" or "computer-use-2024-10-22" or 31 more`
- `"user-profiles-2026-08-18"`
+3 −1 lines
Recorded here 20 Aug 2026 17:07 UTC
api
api/beta/deployments/create
±changed
+3−1
apichanged
api/beta/deployments/create
- `"message-batches-2024-09-24" or "prompt-caching-2024-07-31" or "computer-use-2024-10-22" or 30 more`
- `"message-batches-2024-09-24" or "prompt-caching-2024-07-31" or "computer-use-2024-10-22" or 31 more`
- `"user-profiles-2026-08-18"`
+3 −1 lines
Recorded here 20 Aug 2026 17:07 UTC
api
api/beta/deployments/archive
±changed
+3−1
apichanged
api/beta/deployments/archive
- `"message-batches-2024-09-24" or "prompt-caching-2024-07-31" or "computer-use-2024-10-22" or 30 more`
- `"message-batches-2024-09-24" or "prompt-caching-2024-07-31" or "computer-use-2024-10-22" or 31 more`
- `"user-profiles-2026-08-18"`
+3 −1 lines
Recorded here 20 Aug 2026 17:07 UTC
api
api/beta/deployments
±changed
+24−8
apichanged
api/beta/deployments
- `"message-batches-2024-09-24" or "prompt-caching-2024-07-31" or "computer-use-2024-10-22" or 30 more`
- `"message-batches-2024-09-24" or "prompt-caching-2024-07-31" or "computer-use-2024-10-22" or 31 more`
- `"user-profiles-2026-08-18"`
- `"message-batches-2024-09-24" or "prompt-caching-2024-07-31" or "computer-use-2024-10-22" or 30 more`
+24 −8 lines
Recorded here 20 Aug 2026 17:07 UTC
api
api/beta/deployment_runs/retrieve
±changed
+3−1
apichanged
api/beta/deployment_runs/retrieve
- `"message-batches-2024-09-24" or "prompt-caching-2024-07-31" or "computer-use-2024-10-22" or 30 more`
- `"message-batches-2024-09-24" or "prompt-caching-2024-07-31" or "computer-use-2024-10-22" or 31 more`
- `"user-profiles-2026-08-18"`
+3 −1 lines
Recorded here 20 Aug 2026 17:07 UTC
api
api/beta/deployment_runs/list
±changed
+3−1
apichanged
api/beta/deployment_runs/list
- `"message-batches-2024-09-24" or "prompt-caching-2024-07-31" or "computer-use-2024-10-22" or 30 more`
- `"message-batches-2024-09-24" or "prompt-caching-2024-07-31" or "computer-use-2024-10-22" or 31 more`
- `"user-profiles-2026-08-18"`
+3 −1 lines
Recorded here 20 Aug 2026 17:07 UTC
api
api/beta/deployment_runs
±changed
+6−2
apichanged
api/beta/deployment_runs
- `"message-batches-2024-09-24" or "prompt-caching-2024-07-31" or "computer-use-2024-10-22" or 30 more`
- `"message-batches-2024-09-24" or "prompt-caching-2024-07-31" or "computer-use-2024-10-22" or 31 more`
- `"user-profiles-2026-08-18"`
- `"message-batches-2024-09-24" or "prompt-caching-2024-07-31" or "computer-use-2024-10-22" or 30 more`
+6 −2 lines
Recorded here 20 Aug 2026 17:07 UTC
api
api/beta/agents/versions/list
±changed
+4−2
apichanged
api/beta/agents/versions/list
- `"message-batches-2024-09-24" or "prompt-caching-2024-07-31" or "computer-use-2024-10-22" or 30 more`
- `"message-batches-2024-09-24" or "prompt-caching-2024-07-31" or "computer-use-2024-10-22" or 31 more`
- `"user-profiles-2026-08-18"`
"id": "claude-sonnet-4-6",
+4 −2 lines
Recorded here 20 Aug 2026 17:07 UTC
api
api/beta/agents/versions
±changed
+4−2
apichanged
api/beta/agents/versions
- `"message-batches-2024-09-24" or "prompt-caching-2024-07-31" or "computer-use-2024-10-22" or 30 more`
- `"message-batches-2024-09-24" or "prompt-caching-2024-07-31" or "computer-use-2024-10-22" or 31 more`
- `"user-profiles-2026-08-18"`
"id": "claude-sonnet-4-6",
+4 −2 lines
Recorded here 20 Aug 2026 17:07 UTC
api
api/beta/agents/update
±changed
+5−3
apichanged
api/beta/agents/update
- `"message-batches-2024-09-24" or "prompt-caching-2024-07-31" or "computer-use-2024-10-22" or 30 more`
- `"message-batches-2024-09-24" or "prompt-caching-2024-07-31" or "computer-use-2024-10-22" or 31 more`
- `"user-profiles-2026-08-18"`
Model identifier. Accepts the [model string](https://platform.claude.com/docs/en/about-claude/models/overview#latest-models-comparison), e.g. `claude-opus-4-6`, or a `model_confi
+5 −3 lines
Recorded here 20 Aug 2026 17:07 UTC
api
api/beta/agents/retrieve
±changed
+4−2
apichanged
api/beta/agents/retrieve
- `"message-batches-2024-09-24" or "prompt-caching-2024-07-31" or "computer-use-2024-10-22" or 30 more`
- `"message-batches-2024-09-24" or "prompt-caching-2024-07-31" or "computer-use-2024-10-22" or 31 more`
- `"user-profiles-2026-08-18"`
"id": "claude-sonnet-4-6",
+4 −2 lines
Recorded here 20 Aug 2026 17:07 UTC
api
api/beta/agents/list
±changed
+4−2
apichanged
api/beta/agents/list
- `"message-batches-2024-09-24" or "prompt-caching-2024-07-31" or "computer-use-2024-10-22" or 30 more`
- `"message-batches-2024-09-24" or "prompt-caching-2024-07-31" or "computer-use-2024-10-22" or 31 more`
- `"user-profiles-2026-08-18"`
"id": "claude-sonnet-4-6",
+4 −2 lines
Recorded here 20 Aug 2026 17:07 UTC
api
api/beta/agents/create
±changed
+6−4
apichanged
api/beta/agents/create
- `"message-batches-2024-09-24" or "prompt-caching-2024-07-31" or "computer-use-2024-10-22" or 30 more`
- `"message-batches-2024-09-24" or "prompt-caching-2024-07-31" or "computer-use-2024-10-22" or 31 more`
- `"user-profiles-2026-08-18"`
Model identifier. Accepts the [model string](https://platform.claude.com/docs/en/about-claude/models/overview#latest-models-comparison), e.g. `claude-opus-4-6`, or a `model_confi
+6 −4 lines
Recorded here 20 Aug 2026 17:07 UTC
api
api/beta/agents/archive
±changed
+4−2
apichanged
api/beta/agents/archive
- `"message-batches-2024-09-24" or "prompt-caching-2024-07-31" or "computer-use-2024-10-22" or 30 more`
- `"message-batches-2024-09-24" or "prompt-caching-2024-07-31" or "computer-use-2024-10-22" or 31 more`
- `"user-profiles-2026-08-18"`
"id": "claude-sonnet-4-6",
+4 −2 lines
Recorded here 20 Aug 2026 17:07 UTC
api
api/beta/agents
±changed
+27−15
apichanged
api/beta/agents
- `"message-batches-2024-09-24" or "prompt-caching-2024-07-31" or "computer-use-2024-10-22" or 30 more`
- `"message-batches-2024-09-24" or "prompt-caching-2024-07-31" or "computer-use-2024-10-22" or 31 more`
- `"user-profiles-2026-08-18"`
Model identifier. Accepts the [model string](https://platform.claude.com/docs/en/about-claude/models/overview#latest-models-comparison), e.g. `claude-opus-4-6`, or a `model_confi
+27 −15 lines
Recorded here 20 Aug 2026 17:07 UTC
api
api/beta-headers
±changed
+10−10
apichanged
api/beta-headers
The following examples show the same request with cURL, the `ant` CLI, and the SDKs. The SDKs take beta names in the `betas` parameter and send the `anthropic-beta` header for you:
The following examples show the same request with cURL, the `ant` CLI, and the SDKs, using the [context editing](https://platform.claude.com/docs/en/build-with-claude/context-editi
-H "anthropic-beta: files-api-2025-04-14" \
-H "anthropic-beta: context-management-2025-06-27" \
--beta files-api-2025-04-14 \
+10 −10 lines
Recorded here 20 Aug 2026 17:07 UTC
api
api/beta
±changed
+7632−1583
apichanged
api/beta
No line of the body moved in this read.
+7632 −1583 lines
Recorded here 20 Aug 2026 17:07 UTC
api
agents-and-tools/tool-use/web-fetch-tool
±changed
+3−3
apichanged
agents-and-tools/tool-use/web-fetch-tool
fmt.Println(response)
fmt.Println(response.RawJSON())
fmt.Println(response)
fmt.Println(response.RawJSON())
fmt.Println(response)
+3 −3 lines
Recorded here 20 Aug 2026 17:07 UTC
api
agents-and-tools/tool-use/troubleshooting-tool-use
±changed
+6−6
apichanged
agents-and-tools/tool-use/troubleshooting-tool-use
| Error | Cause
| ------------------------------------------------------------------------------------ | -------------------------------------------------------------------------------------------
| `tool_use ids were found without tool_result blocks immediately after` | Missing `tool_result` for some `tool_use` ids, or `tool_result` is not the first content bl
| `was found without a corresponding <name>_tool_result block` | The previous assistant turn has a `server_tool_use` block with no result block (most often,
| `Input schema is not compatible with strict mode: string patterns are not supported` | Using `pattern` with `strict: true`
+6 −6 lines
Recorded here 20 Aug 2026 17:07 UTC
api
agents-and-tools/tool-use/tool-search-tool
±changed
+1−1
apichanged
agents-and-tools/tool-use/tool-search-tool
fmt.Println(response)
fmt.Println(response.RawJSON())
+1 −1 lines
Recorded here 20 Aug 2026 17:07 UTC
api
agents-and-tools/tool-use/strict-tool-use
±changed
+2−2
apichanged
agents-and-tools/tool-use/strict-tool-use
fmt.Println(response)
fmt.Println(response.RawJSON())
fmt.Println(response)
fmt.Println(response.RawJSON())
+2 −2 lines
Recorded here 20 Aug 2026 17:07 UTC
api
agents-and-tools/tool-use/server-tools
±changed
+5−5
apichanged
agents-and-tools/tool-use/server-tools
}' | jq '{stop_reason, content}'
}'
ant messages create --format json <<'YAML' | jq '{stop_reason, content}'
ant messages create <<'YAML'
}' | jq '{stop_reason, content}'
+5 −5 lines
Recorded here 20 Aug 2026 17:07 UTC
api
agents-and-tools/tool-use/programmatic-tool-calling
±changed
+3−3
apichanged
agents-and-tools/tool-use/programmatic-tool-calling
fmt.Println(response)
fmt.Println(response.RawJSON())
Container: anthropic.MessageNewParamsContainerUnion{
Container: anthropic.MessageCreateParamsContainerUnion{
fmt.Println(response)
+3 −3 lines
Recorded here 20 Aug 2026 17:07 UTC
api
agents-and-tools/tool-use/overview
±changed
+5−8
apichanged
agents-and-tools/tool-use/overview
Tool use lets Claude call functions that you define or that Anthropic provides. Claude determines when to call a tool based on the user's request and the tool's description. It the
Tool use (also called function calling) lets Claude call functions that you define or that Anthropic provides. Claude determines when to call a tool based on the user's request and
# Claude uses the result to answer the original question.
FOLLOWUP=$(curl -s https://api.anthropic.com/v1/messages \
curl -s https://api.anthropic.com/v1/messages \
+5 −8 lines
Recorded here 20 Aug 2026 17:07 UTC
api
agents-and-tools/tool-use/define-tools
±changed
+2−2
apichanged
agents-and-tools/tool-use/define-tools
fmt.Println(response)
fmt.Println(response.RawJSON())
fmt.Println(response)
fmt.Println(response.RawJSON())
+2 −2 lines
Recorded here 20 Aug 2026 17:07 UTC
api
agents-and-tools/tool-use/code-execution-tool
±changed
+67−84
apichanged
agents-and-tools/tool-use/code-execution-tool
This workflow doesn't require a beta header: uploading and downloading files through the Files API and referencing them in `container_upload` blocks are all generally available.
This workflow doesn't require a beta header: uploading and downloading files through the Files API and referencing them in `container_upload` blocks are all generally available.
-H "anthropic-beta: files-api-2025-04-14" \
-H "anthropic-beta: files-api-2025-04-14" \
FILE_ID=$(ant beta:files upload \
+67 −84 lines
Recorded here 20 Aug 2026 17:07 UTC
api
agents-and-tools/mcp-connector
±changed
+8−8
apichanged
agents-and-tools/mcp-connector
implementation("com.anthropic:anthropic-java-mcp:2.53.0")
implementation("com.anthropic:anthropic-java-mcp:2.57.0")
<version>2.53.0</version>
<version>2.57.0</version>
uploaded = await client.beta.files.upload(
+8 −8 lines
Recorded here 20 Aug 2026 17:07 UTC
api
agents-and-tools/agent-skills/quickstart
±changed
+126−172
apichanged
agents-and-tools/agent-skills/quickstart
-H "anthropic-version: 2023-06-01" \
-H "anthropic-beta: skills-2025-10-02" |
jq -r '.data[] | "\(.id): \(.display_title)"'
-H "anthropic-version: 2023-06-01"
ant beta:skills list --source anthropic
+126 −172 lines
Recorded here 20 Aug 2026 17:07 UTC
api
about-claude/models/whats-new-sonnet-5
±changed
+1−1
apichanged
about-claude/models/whats-new-sonnet-5
Claude Sonnet 5 is the first Sonnet-tier model with real-time cybersecurity safeguards. Requests that involve prohibited or high-risk cybersecurity topics may be refused. Refusals
Claude Sonnet 5 is the first Sonnet-tier model with real-time cybersecurity safeguards. Requests that involve prohibited or high-risk cybersecurity topics may be refused. Refusals
+1 −1 lines
Recorded here 20 Aug 2026 17:07 UTC
api
about-claude/models/optimizing-for-cost-and-intelligence
±changed
+15−11
apichanged
about-claude/models/optimizing-for-cost-and-intelligence
> add prompt caching to this integration
> /claude-api add prompt caching to this integration
* **`max_tokens`** caps a single response, invisibly to the model, so lowering it does not make the model economize. The turns that needed the room are discarded and still billed.
* **`max_tokens`** caps a single response, invisibly to the model, so lowering it does not make the model economize. The turns that needed the room are discarded and still billed.
This pattern saves wall-clock time when workers can run in parallel: on the corpus benchmark[8](https://platform.claude.com/docs/en/about-claude/models/optimizing-for-cost-and-inte
+15 −11 lines
Recorded here 20 Aug 2026 17:07 UTC
api
about-claude/models/migration-guide
±changed
+4−4
apichanged
about-claude/models/migration-guide
8. **Real-time cybersecurity safeguards:** Newly added in Claude Opus 4.7, requests that involve prohibited or high-risk topics may lead to refusals. For legitimate security work s
8. **Real-time cybersecurity safeguards:** Newly added in Claude Opus 4.7, requests that involve prohibited or high-risk topics may lead to refusals. For legitimate security work s
* If your product does legitimate security work, apply to the [Cyber Verification Program](https://claude.com/form/cyber-use-case) for access to lower restrictions on cyber content
* If your product does legitimate security work, apply to the [Cyber Verification Program](https://support.claude.com/en/articles/14604842-real-time-cyber-safeguards-on-claude-opus
6. **Cybersecurity safeguards:** Claude Sonnet 5 is the first Sonnet-tier model with real-time cybersecurity safeguards. Requests that involve prohibited or high-risk cybersecurity
+4 −4 lines
Recorded here 20 Aug 2026 17:07 UTC
19 Aug 2026
50 pages
+1128 −474 lines
api
release-notes/overview
±changed
+8−0
apichanged
release-notes/overview
- The [Files API](https://platform.claude.com/docs/en/build-with-claude/files) is now generally available on the Claude API. Requests to the `/v1/files` endpoints, and Messages API
* [Agent Skills](https://platform.claude.com/docs/en/agents-and-tools/agent-skills/overview) and the Skills API (`/v1/skills`) are now generally available on the Claude API. Reques
+8 −0 lines
Recorded here 19 Aug 2026 22:07 UTC
api
managed-agents/tools
±changed
+439−9
apichanged
managed-agents/tools
The agent toolset includes the following tools. All are enabled by default when you include the toolset in your agent configuration. Use the values in the Name column to reference
The agent toolset includes the following tools. All are enabled by default when you include the toolset in your agent configuration. Each entry in the `configs` array is identified
Config entries for `web_search` and `web_fetch` also accept domain filters and other web settings; see [Restrict web search and web fetch domains](https://platform.claude.com/docs/
new() { Name = "web_fetch", Enabled = false },
+439 −9 lines
Recorded here 19 Aug 2026 22:07 UTC
api
managed-agents/skills
±changed
+1−1
apichanged
managed-agents/skills
When you call the Skills API directly with cURL, pass the `anthropic-beta: skills-2025-10-02` header explicitly. The CLI and SDKs send it automatically.
The Skills API doesn't require a beta header. The cURL example still sends `anthropic-beta: skills-2025-10-02`, and the CLI and SDK `beta` commands add it automatically; requests t
+1 −1 lines
Recorded here 19 Aug 2026 22:07 UTC
api
managed-agents/session-operations
±changed
+1−1
apichanged
managed-agents/session-operations
You can update a session's `agent.tools` and `agent.mcp_servers`, including permission policies, mid-session without creating a new agent version. Updates are session-local and do
You can update a session's `agent.tools` and `agent.mcp_servers`, including permission policies and per-tool web settings such as [domain filters](https://platform.claude.com/docs/
+1 −1 lines
Recorded here 19 Aug 2026 22:07 UTC
api
managed-agents/self-hosted-sandboxes-security
±changed
+3−0
apichanged
managed-agents/self-hosted-sandboxes-security
* **Per-session credentials.** Each work item your worker claims can carry a per-session `secret`, which the SDK worker uses in place of the environment service key. Access to [mem
* **Memory store contents.** [Memory stores](https://platform.claude.com/docs/en/managed-agents/memory) remain hosted by Anthropic, including their version history. When a session
* **Read-only memory stores.** A store attached with `read_only` access is protected from upload, not from local modification. The worker's `write` and `edit` tools refuse to write
+3 −0 lines
Recorded here 19 Aug 2026 22:07 UTC
api
managed-agents/self-hosted-sandboxes
±changed
+440−39
apichanged
managed-agents/self-hosted-sandboxes
Tool execution stays on your host: the filesystem the agent reads and writes, the processes it spawns, and the network it can reach are all under your control. Tool inputs and outp
Tool execution stays on your host: the filesystem the agent reads and writes, the processes it spawns, and the network it can reach are all under your control. Tool inputs and outp
| | Cloud environment | Self-hosted sandbox |
| ----------------------------- | --------------------------- | ------------------- |
| Where tools run | Anthropic-managed sandboxes | Your infrastructure |
+440 −39 lines
Recorded here 19 Aug 2026 22:07 UTC
api
managed-agents/scheduled-deployments
±changed
+1−1
apichanged
managed-agents/scheduled-deployments
* Deployments require [agent configuration](https://platform.claude.com/docs/en/managed-agents/agent-setup) and [environment configuration](https://platform.claude.com/docs/en/mana
* Deployments require [agent configuration](https://platform.claude.com/docs/en/managed-agents/agent-setup) and [environment configuration](https://platform.claude.com/docs/en/mana
+1 −1 lines
Recorded here 19 Aug 2026 22:07 UTC
api
managed-agents/reference
±changed
+2−0
apichanged
managed-agents/reference
The CLI worker does not mount [memory stores](https://platform.claude.com/docs/en/managed-agents/memory): a session that attaches one still runs, but the agent finds nothing at the
+2 −0 lines
Recorded here 19 Aug 2026 22:07 UTC
api
managed-agents/permission-policies
±changed
+10−12
apichanged
managed-agents/permission-policies
new()
new BetaManagedAgentsBashToolConfigParams
Name = "bash",
Configs: []anthropic.BetaManagedAgentsAgentToolConfigParams{{
Name: anthropic.BetaManagedAgentsAgentToolConfigParamsNameBash,
+10 −12 lines
Recorded here 19 Aug 2026 22:07 UTC
api
managed-agents/overview
±changed
+1−1
apichanged
managed-agents/overview
* **Web search and fetch:** Search the web and retrieve content from URLs
* **Web search and fetch:** Search the web and retrieve content from URLs, optionally restricted to an allowlist or blocklist of domains
+1 −1 lines
Recorded here 19 Aug 2026 22:07 UTC
api
managed-agents/migration
±changed
+1−0
apichanged
managed-agents/migration
* **Web search and web fetch settings:** Same `allowed_domains`, `blocked_domains`, `max_content_tokens`, and `user_location` fields, now set once on the `web_search` and `web_fetc
+1 −0 lines
Recorded here 19 Aug 2026 22:07 UTC
api
managed-agents/memory
±changed
+8−2
apichanged
managed-agents/memory
A **memory store** is a workspace-scoped collection of text documents optimized for Claude. When you attach a store to a session, it is mounted as a directory inside the session's
A **memory store** is a workspace-scoped collection of text documents optimized for Claude. When you attach a store to a session, it is mounted as a directory inside the session's
Memory stores are attached in the session's `resources[]` array when the [session is created](https://platform.claude.com/docs/en/managed-agents/sessions#creating-a-session). Unlik
Memory stores are attached in the session's `resources[]` array when the [session is created](https://platform.claude.com/docs/en/managed-agents/sessions#creating-a-session). Unlik
<Note>
+8 −2 lines
Recorded here 19 Aug 2026 22:07 UTC
api
managed-agents/mcp-connector
±changed
+1−1
apichanged
managed-agents/mcp-connector
The `mcp_toolset` entry supports the same `default_config` and `configs` shape as the built-in agent toolset, applied to the tools the MCP server exposes. The `name` in each `confi
The `mcp_toolset` entry supports a `default_config` object and a `configs` array, applied to the tools the MCP server exposes. Each `configs` entry accepts only `name`, `enabled`,
+1 −1 lines
Recorded here 19 Aug 2026 22:07 UTC
api
managed-agents/events-and-streaming
±changed
+15−5
apichanged
managed-agents/events-and-streaming
The Claude Console provides a visual timeline view of your agent sessions. Navigate to the Claude Managed Agents section in the Console to see:
* **Session list:** All sessions with their status, creation time, and agent
* **Tracing view:** A chronological view of events (content, timestamps, token usage) within a session. Tracing views are only accessible to Developers and Admins.
* **Tool execution:** Details of each tool call and its result
+15 −5 lines
Recorded here 19 Aug 2026 22:07 UTC
api
managed-agents/environments
±changed
+1−1
apichanged
managed-agents/environments
The `networking` field controls the sandbox's outbound network access. It does not affect the allowed domains for the `web_search` or `web_fetch` tools.
The `networking` field controls the sandbox's outbound network access. It does not affect the `web_search` or `web_fetch` tools, which run on Anthropic's servers; to restrict the s
+1 −1 lines
Recorded here 19 Aug 2026 22:07 UTC
api
managed-agents/define-outcomes
±changed
+1−1
apichanged
managed-agents/define-outcomes
Uploading through the Files API requires a beta header that grants Files API access. Your Managed Agents beta header grants this on its own, so you don't need to send `files-api-
Uploading through the Files API doesn't require a beta header. The cURL example sends the `managed-agents-2026-04-01` header it uses throughout this walkthrough, which the Files
+1 −1 lines
Recorded here 19 Aug 2026 22:07 UTC
api
manage-claude/workspaces
±changed
+2−2
apichanged
manage-claude/workspaces
* **Maximum 100 workspaces** per organization (archived workspaces don't count)
* **Maximum 100 workspaces** per organization by default (archived workspaces don't count); contact your account team if you need more
Yes, you can have a maximum of 100 workspaces per organization. Archived workspaces do not count toward this limit.
Yes. Each organization can have up to 100 workspaces by default, and archived workspaces don't count toward this limit. If you need more, contact your account team.
+2 −2 lines
Recorded here 19 Aug 2026 22:07 UTC
api
manage-claude/data-residency
±changed
+1−1
apichanged
manage-claude/data-residency
[Claude Managed Agents](https://platform.claude.com/docs/en/managed-agents/overview) supports geographic pinning at the agent level: `inference_geo` on an [agent's model configur
[Claude Managed Agents](https://platform.claude.com/docs/en/managed-agents/overview) supports geographic pinning at the agent level: `inference_geo` on an [agent's model configur
+1 −1 lines
Recorded here 19 Aug 2026 22:07 UTC
api
manage-claude/api-and-data-retention
±changed
+1−1
apichanged
manage-claude/api-and-data-retention
| [Files API](https://platform.claude.com/docs/en/build-with-claude/files) | `/v1/files` | <E
| [Files API](https://platform.claude.com/docs/en/build-with-claude/files) | `/v1/files` | <E
+1 −1 lines
Recorded here 19 Aug 2026 22:07 UTC
api
build-with-claude/skills-guide
±changed
+22−155
apichanged
build-with-claude/skills-guide
| **Version format** | Date-based: `20251013` or `latest` | Epoch timestamp: `1759178010641129` or `latest` |
| **Version format** | Date-based: `20251013` or `latest` | Version ID: `skver_01AbCdEfGhIjKlMnOpQrStUv` or `latest` |
2. **Beta headers:**
+22 −155 lines
Recorded here 19 Aug 2026 22:07 UTC
api
build-with-claude/pdf-support
±changed
+1−1
apichanged
build-with-claude/pdf-support
For PDFs you'll use repeatedly, or when you want to avoid encoding overhead, use the [Files API](https://platform.claude.com/docs/en/build-with-claude/files) (beta):
For PDFs you'll use repeatedly, or when you want to avoid encoding overhead, use the [Files API](https://platform.claude.com/docs/en/build-with-claude/files). These examples send t
+1 −1 lines
Recorded here 19 Aug 2026 22:07 UTC
api
build-with-claude/overview
±changed
+4−4
apichanged
build-with-claude/overview
| [Agent Skills](https://platform.claude.com/docs/en/agents-and-tools/agent-skills/overview) | Extend Claude's capabilities with Skills. Use pre-built
| [Agent Skills](https://platform.claude.com/docs/en/agents-and-tools/agent-skills/overview) | Extend Claude's capabilities with Skills. Use pre-built
| Feature | Description
| ------------------------------------------------------------------------ | -------------------------------------------------------------------------------------------------------
| [Files API](https://platform.claude.com/docs/en/build-with-claude/files) | Upload and manage files to use with Claude without re-uploading content with each request. Supports PDF
+4 −4 lines
Recorded here 19 Aug 2026 22:07 UTC
api
build-with-claude/files
±changed
+30−11
apichanged
build-with-claude/files
- Status: Beta
- [Beta header](https://platform.claude.com/docs/en/api/beta-headers): `files-api-2025-04-14`
- Platforms: Claude API (beta), Claude Platform on AWS (beta), Microsoft Foundry (beta) [1]; not available on Amazon Bedrock, Google Cloud
- Platforms: Claude API, Claude Platform on AWS (beta), Microsoft Foundry (beta) [1]; not available on Amazon Bedrock, Google Cloud
+30 −11 lines
Recorded here 19 Aug 2026 22:07 UTC
api
build-with-claude/claude-platform-on-aws
±changed
+2−1
apichanged
build-with-claude/claude-platform-on-aws
Session behavior on Claude Platform on AWS differs from first-party Claude Managed Agents in one way:
Session behavior on Claude Platform on AWS differs from first-party Claude Managed Agents in two ways:
* **[Memory stores on self-hosted environments](https://platform.claude.com/docs/en/managed-agents/self-hosted-sandboxes#use-memory-stores):** A session that runs on a self-hosted
+2 −1 lines
Recorded here 19 Aug 2026 22:07 UTC
api
build-with-claude/citations
±changed
+2−2
apichanged
build-with-claude/citations
Files API document sources are in beta. These examples use the beta client path; see [Files API](https://platform.claude.com/docs/en/build-with-claude/files) for upload detai
These examples reference the uploaded file as a `document` source. They use the SDK `beta` client path and send the `anthropic-beta: files-api-2025-04-14` header, which the A
Files API document sources are in beta. These examples use the beta client path; see [Files API](https://platform.claude.com/docs/en/build-with-claude/files) for upload detai
These examples reference the uploaded file as a `document` source. They use the SDK `beta` client path and send the `anthropic-beta: files-api-2025-04-14` header, which the A
+2 −2 lines
Recorded here 19 Aug 2026 22:07 UTC
api
api/rate-limits
±changed
+4−0
apichanged
api/rate-limits
### Files API
[Files API](https://platform.claude.com/docs/en/build-with-claude/files) requests have their own per-organization limit, shared across upload, list, retrieve, download, and delete
+4 −0 lines
Recorded here 19 Aug 2026 22:07 UTC
api
api/overview
±changed
+3−3
apichanged
api/overview
* **[Files API](https://platform.claude.com/docs/en/api/beta/files/upload)**: Upload and manage files for use across multiple API calls (`POST /v1/files`, `GET /v1/files`)
* **[Skills API](https://platform.claude.com/docs/en/api/skills/create-skill)**: Create and manage custom agent skills (`POST /v1/skills`, `GET /v1/skills`)
* **[Files API](https://platform.claude.com/docs/en/api/beta/files/upload)**: Upload and manage files for use across multiple API calls (`POST /v1/files`, `GET /v1/files`)
* **[Skills API](https://platform.claude.com/docs/en/api/skills/create-skill)**: Create and manage custom agent skills (`POST /v1/skills`, `GET /v1/skills`)
Some list endpoints use a different cursor scheme. The [Message Batches API](https://platform.claude.com/docs/en/build-with-claude/batch-processing), the [Files API](https://plat
+3 −3 lines
Recorded here 19 Aug 2026 22:07 UTC
api
agents-and-tools/tool-use/web-search-tool
±changed
+6−0
apichanged
agents-and-tools/tool-use/web-search-tool
These organization-level settings in the Claude Console apply to Messages API requests only. [Claude Managed Agents](https://platform.claude.com/docs/en/managed-agents/overview) se
On [Claude Managed Agents](https://platform.claude.com/docs/en/managed-agents/overview), set these fields on the `web_search` entry of the agent toolset; see [Restrict web search a
+6 −0 lines
Recorded here 19 Aug 2026 22:07 UTC
api
agents-and-tools/tool-use/web-fetch-tool
±changed
+4−0
apichanged
agents-and-tools/tool-use/web-fetch-tool
On [Claude Managed Agents](https://platform.claude.com/docs/en/managed-agents/overview), set these fields on the `web_fetch` entry of the agent toolset, where each listed domain mu
On Claude Managed Agents, the `web_fetch` entry of the agent toolset also accepts `max_content_tokens`; see [Restrict web search and web fetch domains](https://platform.claude.com/
+4 −0 lines
Recorded here 19 Aug 2026 22:07 UTC
api
agents-and-tools/tool-use/server-tools
±changed
+4−0
apichanged
agents-and-tools/tool-use/server-tools
[Claude Managed Agents](https://platform.claude.com/docs/en/managed-agents/overview) uses the same `allowed_domains` and `blocked_domains` fields on the `web_search` and `web_fetch
Organization-level web search and web fetch settings in the Claude Console apply to Messages API requests only; they do not apply to Managed Agents sessions, which use only the per
+4 −0 lines
Recorded here 19 Aug 2026 22:07 UTC
api
agents-and-tools/tool-use/code-execution-tool
±changed
+1−1
apichanged
agents-and-tools/tool-use/code-execution-tool
Using the Files API with code execution requires the Files API beta header: `"anthropic-beta": "files-api-2025-04-14"`
This workflow doesn't require a beta header: uploading and downloading files through the Files API and referencing them in `container_upload` blocks are all generally available.
+1 −1 lines
Recorded here 19 Aug 2026 22:07 UTC
api
agents-and-tools/agent-skills/quickstart
±changed
+3−2
apichanged
agents-and-tools/agent-skills/quickstart
* **Beta header:** `skills-2025-10-02`
The examples on this page use the `code_execution_20260521` tool version, which is generally available and needs only the `skills-2025-10-02` beta header. The Step 3 code parses
Skills are generally available on the Claude API and don't require a beta header. The examples on this page still send the `skills-2025-10-02` beta header and use the SDKs' `beta
The examples use the `code_execution_20260521` tool version, and the Step 3 code parses the result types that current tool versions return. Skills also work with older [code exec
+3 −2 lines
Recorded here 19 Aug 2026 22:07 UTC
api
agents-and-tools/agent-skills/overview
±changed
+1−5
apichanged
agents-and-tools/agent-skills/overview
**Prerequisites:** Using Skills through the API requires the [code execution tool](https://platform.claude.com/docs/en/agents-and-tools/tool-use/code-execution-tool), whose contain
* `skills-2025-10-02` - Enables Skills functionality
Add a second header, `files-api-2025-04-14`, when you use the [Files API](https://platform.claude.com/docs/en/build-with-claude/files) to upload input files to the container or dow
+1 −5 lines
Recorded here 19 Aug 2026 22:07 UTC
api
agents-and-tools/agent-skills/enterprise
±changed
+1−1
apichanged
agents-and-tools/agent-skills/enterprise
Note that API requests support a maximum of 8 Skills for each request (see [Using Skills with the API](https://platform.claude.com/docs/en/build-with-claude/skills-guide)). If a ro
Note that API requests support a maximum of 20 Skills for each request (see [Using Skills with the API](https://platform.claude.com/docs/en/build-with-claude/skills-guide)). If a r
+1 −1 lines
Recorded here 19 Aug 2026 22:07 UTC
api
resources/overview
±changed
+2−44
apichanged
resources/overview
title: Resources
title: Model cards
description: Model cards, learning resources, and documentation formats optimized for AI ingestion.
description: Model cards with detailed documentation for Claude models.
+2 −44 lines
Recorded here 19 Aug 2026 18:07 UTC
api
release-notes/overview
±changed
+4−0
apichanged
release-notes/overview
### August 19, 2026
* The [Admin API](https://platform.claude.com/docs/en/api/admin) user-management endpoints for **Claude Enterprise** (claude.ai) organizations (members, invites, groups, and custom
+4 −0 lines
Recorded here 19 Aug 2026 18:07 UTC
Nothing on this page matches that. Press Enter to search every page of the ledger.