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Sweep 28 Aug 2026 · 00:00Z Build v2.1.250 478 read Stable v2.1.236 Latest v2.1.250 Next v2.1.250 Feeds RSS JSON llms.txt

DisclaimerUnofficial, and not affiliated with Anthropic. Nearly all of this is read straight out of what ships: npm bundles, captured prompts, published docs. Anthropic's own notes go in verbatim, marked as theirs. The rest is my reading, and every entry carries the strings behind it. If one looks wrong, vote it down and say why.

One change

Sessions

api/beta/sessions

first seen The page's own history The capture it came from

Nearest release: v2.1.245, published 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.

api/beta/sessions Changed · +5698 / -19015 lines

### Headers ### Body parameters #### Response (200) ### Query parameters ### Headers #### Response (200) ### Path parameters ### Headers #### Response (200) ### Path parameters ### Headers ### Body parameters #### Response (200) ### Path parameters ### Headers #### Response (200) ### Path parameters ### Headers #### Response (200) ## Domain types ## Sessions › Events ### List Events #### Path parameters #### Query parameters #### Headers #### Returns #### Example ##### Response (200) ### Send Events #### Path parameters #### Headers #### Body parameters #### Returns #### Example ##### Response (200) ### Stream Events #### Path parameters #### Query parameters #### Headers #### Returns #### Example ##### Response (200) ## Sessions › Resources ### Add Session Resource #### Path parameters #### Headers #### Body parameters #### Returns #### Example ##### Response (200) ### List Session Resources #### Path parameters #### Query parameters #### Headers #### Returns #### Example ##### Response (200) ### Get Session Resource #### Path parameters #### Headers #### Returns #### Example ##### Response (200) ### Update Session Resource #### Path parameters #### Headers #### Body parameters #### Returns #### Example ##### Response (200) ### Delete Session Resource #### Path parameters #### Headers #### Returns #### Example ##### Response (200) ## Sessions › Threads ### List Session Threads #### Path parameters #### Query parameters #### Headers #### Returns #### Example ##### Response (200) ### Get Session Thread #### Path parameters #### Headers #### Returns #### Example ##### Response (200) ### Archive Session Thread #### Path parameters #### Headers #### Returns #### Example ##### Response (200) ## Sessions › Threads › Events ### List Session Thread Events #### Path parameters #### Query parameters #### Headers #### Returns #### Example ##### Response (200) ### Stream Session Thread Events #### Path parameters #### Query parameters #### Headers #### Returns #### Example ##### Response (200) ### Header Parameters ### Body Parameters #### Response ### Query Parameters ### Header Parameters #### Response ### Path Parameters ### Header Parameters #### Response ### Path Parameters ### Header Parameters ### Body Parameters #### Response ### Path Parameters ### Header Parameters #### Response ### Path Parameters ### Header Parameters #### Response ## Domain Types # Events ## List Events ### Path Parameters ### Query Parameters ### Header Parameters #### Response ## Send Events ### Path Parameters ### Header Parameters ### Body Parameters #### Response ## Stream Events ### Path Parameters ### Query Parameters ### Header Parameters #### Response ## Domain Types ### Beta Managed Agents Agent Custom Tool Use Event ### Beta Managed Agents Agent MCP Tool Result Event ### Beta Managed Agents Agent MCP Tool Use Event ### Beta Managed Agents Agent Message Event ### Beta Managed Agents Agent Thinking Event ### Beta Managed Agents Agent Thread Context Compacted Event ### Beta Managed Agents Agent Thread Message Received Event ### Beta Managed Agents Agent Thread Message Sent Event ### Beta Managed Agents Agent Tool Result Event ### Beta Managed Agents Agent Tool Use Event ### Beta Managed Agents Base64 Document Source ### Beta Managed Agents Base64 Image Source ### Beta Managed Agents Billing Error ### Beta Managed Agents Credential Host Unreachable Error ### Beta Managed Agents Document Block ### Beta Managed Agents Event Params ### Beta Managed Agents File Document Source ### Beta Managed Agents File Image Source ### Beta Managed Agents File Rubric ### Beta Managed Agents File Rubric Params ### Beta Managed Agents Image Block ### Beta Managed Agents MCP Authentication Failed Error ### Beta Managed Agents MCP Connection Failed Error ### Beta Managed Agents Model Overloaded Error ### Beta Managed Agents Model Rate Limited Error ### Beta Managed Agents Model Request Failed Error ### Beta Managed Agents Plain Text Document Source ### Beta Managed Agents Redacted Block ### Beta Managed Agents Retry Status Exhausted ### Beta Managed Agents Retry Status Retrying ### Beta Managed Agents Retry Status Terminal ### Beta Managed Agents Search Result Block ### Beta Managed Agents Search Result Citations ### Beta Managed Agents Search Result Content ### Beta Managed Agents Send Session Events ### Beta Managed Agents Session Budget Reached ### Beta Managed Agents Session Deleted Event ### Beta Managed Agents Session End Turn ### Beta Managed Agents Session Error Event ### Beta Managed Agents Session Event ### Beta Managed Agents Session Requires Action ### Beta Managed Agents Session Retries Exhausted ### Beta Managed Agents Session Status Idle Event ### Beta Managed Agents Session Status Rescheduled Event ### Beta Managed Agents Session Status Running Event ### Beta Managed Agents Session Status Terminated Event ### Beta Managed Agents Session Thread Created Event ### Beta Managed Agents Session Thread Status Idle Event ### Beta Managed Agents Session Thread Status Rescheduled Event ### Beta Managed Agents Session Thread Status Running Event ### Beta Managed Agents Session Thread Status Terminated Event ### Beta Managed Agents Session Usage Snapshot ### Beta Managed Agents Span Model Request End Event ### Beta Managed Agents Span Model Request Start Event ### Beta Managed Agents Span Model Usage ### Beta Managed Agents Span Outcome Evaluation End Event ### Beta Managed Agents Span Outcome Evaluation Ongoing Event ### Beta Managed Agents Span Outcome Evaluation Start Event ### Beta Managed Agents Stream Session Events ### Beta Managed Agents System Message Event Params ### Beta Managed Agents Text Block ### Beta Managed Agents Text Rubric ### Beta Managed Agents Text Rubric Params ### Beta Managed Agents Unknown Error ### Beta Managed Agents URL Document Source ### Beta Managed Agents URL Image Source ### Beta Managed Agents User Custom Tool Result Event ### Beta Managed Agents User Custom Tool Result Event Params ### Beta Managed Agents User Define Outcome Event ### Beta Managed Agents User Define Outcome Event Params ### Beta Managed Agents User Interrupt Event ### Beta Managed Agents User Interrupt Event Params ### Beta Managed Agents User Message Event ### Beta Managed Agents User Message Event Params ### Beta Managed Agents User Tool Confirmation Event ### Beta Managed Agents User Tool Confirmation Event Params ### Beta Managed Agents User Tool Result Event Params # Resources ## Add Session Resource ### Path Parameters ### Header Parameters ### Body Parameters #### Response ## List Session Resources ### Path Parameters ### Query Parameters ### Header Parameters #### Response ## Get Session Resource ### Path Parameters ### Header Parameters #### Response ## Update Session Resource ### Path Parameters ### Header Parameters ### Body Parameters #### Response ## Delete Session Resource ### Path Parameters ### Header Parameters #### Response ## Domain Types ### Beta Managed Agents Delete Session Resource ### Beta Managed Agents File Resource ### Beta Managed Agents GitHub Repository Resource ### Beta Managed Agents Memory Store Resource ### Beta Managed Agents Session Resource ### Resource Retrieve Response ### Resource Update Response # Threads ## List Session Threads ### Path Parameters ### Query Parameters ### Header Parameters #### Response ## Get Session Thread ### Path Parameters ### Header Parameters #### Response ## Archive Session Thread ### Path Parameters ### Header Parameters #### Response ## Domain Types ### Beta Managed Agents Session Thread ### Beta Managed Agents Session Thread Stats ### Beta Managed Agents Session Thread Status ### Beta Managed Agents Session Thread Usage ### Beta Managed Agents Stream Session Thread Events # Events ## List Session Thread Events ### Path Parameters ### Query Parameters ### Header Parameters #### Response ## Stream Session Thread Events ### Path Parameters ### Query Parameters ### Header Parameters #### Response

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