AnthropicClaude Managed Agents
Get Thread
Read one execution thread's status and details.
Call Create session first and replace the example session ID with its returned ID.
GET
/anthropic/v1/sessions/{session_id}/threads/{thread_id}◐ PartialOfficial Claude documentation ↗
Request parameters
session_idstring必填path: Session ID (path or query parameter).
thread_idstring必填path: Path parameter: the thread ID.
session_idstring必填query: Session ID (path or query parameter).
Returns
200
Returns a primary or child thread belonging to this session, field-for-field identical to its list item. Foreign, unknown and malformed thread ids uniformly return 404 without revealing existence.
Errors follow the Claude Managed Agents format — see error codes
Response
HTTP 200
Successful response
application/json
| Name | Type | Description |
|---|---|---|
| id | string | Unique identifier for this thread. |
| agent | object | The resolved agent a `session_thread` runs. |
| agent.model | string | object | The advisor model id. / Model identifier and configuration. |
| agent.type | string | |
| agent.id | string | |
| agent.description | null | string | |
| agent.mcp_servers | array<object> | |
| agent.name | string | |
| agent.skills | array<object> | |
| agent.system | null | string | |
| agent.tools | array<object> | |
| agent.version | number | |
| archived_at | null | string | A timestamp in RFC 3339 format |
| created_at | string | A timestamp in RFC 3339 format |
| parent_thread_id | null | string | Parent thread that spawned this thread. Null for the primary thread. |
| session_id | string | The session this thread belongs to. |
| stats | null | object | Timing statistics for a session thread. |
| stats.active_seconds | number | Cumulative time in seconds the thread spent actively running. Excludes idle time. |
| stats.duration_seconds | number | Elapsed time since thread creation in seconds. For archived threads, frozen at the final update. |
| stats.startup_seconds | number | Time in seconds for the thread to begin running. Zero for child threads, which start immediately. |
| status | string | SessionThreadStatus enum |
| type | string | |
| updated_at | string | A timestamp in RFC 3339 format |
| usage | null | object | Cumulative token usage for a session thread across all turns. |
| usage.active_seconds | number | Cumulative time in seconds this thread spent in running status. Equal to `stats.active_seconds`; surfaced here so a thread's usage carries every quantity its cost is priced on. |
| usage.cache_creation | object | Prompt-cache creation token usage broken down by cache lifetime. |
| usage.cache_read_input_tokens | number | Total tokens read from prompt cache. |
| usage.input_tokens | number | Total input tokens consumed across all turns. |
| usage.list_cost | null | object | A monetary amount in a specific currency. |
| usage.output_tokens | number | Total output tokens generated across all turns. |
| usage.server_tool_use | null | object | Cumulative count of server-executed tool invocations, broken down by tool. |