Get Session Thread

GET

sessions

{session_id}

threads

{thread_id}

Get Session Thread

curl --request GET \
  --url http://localhost:38080/v1/sessions/{session_id}/threads/{thread_id} \
  --header 'X-Api-Key: <api-key>'

const options = {method: 'GET', headers: {'X-Api-Key': '<api-key>'}};

fetch('http://localhost:38080/v1/sessions/{session_id}/threads/{thread_id}', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

package main

import (
	"fmt"
	"net/http"
	"io"
)

func main() {

	url := "http://localhost:38080/v1/sessions/{session_id}/threads/{thread_id}"

	req, _ := http.NewRequest("GET", url, nil)

	req.Header.Add("X-Api-Key", "<api-key>")

	res, _ := http.DefaultClient.Do(req)

	defer res.Body.Close()
	body, _ := io.ReadAll(res.Body)

	fmt.Println(string(body))

}

{
  "type": "session_thread",
  "id": "sthr_011CZkZVWa6oIjw0rgXZpnBt",
  "session_id": "sesn_011CZkZAtmR3yMPDzynEDxu7",
  "status": "idle",
  "agent": {
    "type": "agent",
    "id": "agent_011CZkYqphY8vELVzwCUpqiQ",
    "version": 1,
    "name": "Researcher",
    "description": "A focused research subagent.",
    "model": {
      "id": "claude-sonnet-4-6",
      "speed": "standard"
    },
    "system": "You are a research subagent that gathers and summarises sources for the coordinating agent.",
    "tools": [
      {
        "type": "agent_toolset_20260401",
        "default_config": {
          "enabled": true,
          "permission_policy": {
            "type": "always_ask"
          }
        },
        "configs": []
      }
    ],
    "mcp_servers": [],
    "skills": []
  },
  "parent_thread_id": null,
  "created_at": "2026-03-15T10:00:00Z",
  "updated_at": "2026-03-15T10:00:00Z",
  "archived_at": null,
  "usage": {
    "input_tokens": 0,
    "output_tokens": 0,
    "cache_read_input_tokens": 0,
    "cache_creation": {
      "ephemeral_5m_input_tokens": 0,
      "ephemeral_1h_input_tokens": 0
    }
  },
  "stats": {
    "duration_seconds": 0,
    "startup_seconds": 0,
    "active_seconds": 0
  }
}

{
  "error": {
    "message": "Invalid request",
    "type": "invalid_request_error"
  },
  "request_id": "<string>",
  "type": "error"
}

{
  "error": {
    "message": "Invalid request",
    "type": "invalid_request_error"
  },
  "request_id": "<string>",
  "type": "error"
}

{
  "error": {
    "message": "Invalid request",
    "type": "invalid_request_error"
  },
  "request_id": "<string>",
  "type": "error"
}

{
  "error": {
    "message": "Invalid request",
    "type": "invalid_request_error"
  },
  "request_id": "<string>",
  "type": "error"
}

{
  "error": {
    "message": "Invalid request",
    "type": "invalid_request_error"
  },
  "request_id": "<string>",
  "type": "error"
}

{
  "error": {
    "message": "Invalid request",
    "type": "invalid_request_error"
  },
  "request_id": "<string>",
  "type": "error"
}

{
  "error": {
    "message": "Invalid request",
    "type": "invalid_request_error"
  },
  "request_id": "<string>",
  "type": "error"
}

{
  "error": {
    "message": "Invalid request",
    "type": "invalid_request_error"
  },
  "request_id": "<string>",
  "type": "error"
}

{
  "error": {
    "message": "Invalid request",
    "type": "invalid_request_error"
  },
  "request_id": "<string>",
  "type": "error"
}

{
  "error": {
    "message": "Invalid request",
    "type": "invalid_request_error"
  },
  "request_id": "<string>",
  "type": "error"
}

{
  "error": {
    "message": "Invalid request",
    "type": "invalid_request_error"
  },
  "request_id": "<string>",
  "type": "error"
}

{
  "error": {
    "message": "Invalid request",
    "type": "invalid_request_error"
  },
  "request_id": "<string>",
  "type": "error"
}

{
  "error": {
    "message": "Invalid request",
    "type": "invalid_request_error"
  },
  "request_id": "<string>",
  "type": "error"
}

{
  "error": {
    "message": "Invalid request",
    "type": "invalid_request_error"
  },
  "request_id": "<string>",
  "type": "error"
}

{
  "error": {
    "message": "Invalid request",
    "type": "invalid_request_error"
  },
  "request_id": "<string>",
  "type": "error"
}

Every request requires ?beta=true.

Authorizations

X-Api-Key

string

header

default:sk-ant-local-default

required

OMA workspace API key.

Headers

anthropic-version

string

anthropic-beta

string

Path Parameters

session_id

string

required

Path parameter session_id

thread_id

string

required

Path parameter thread_id

Query Parameters

beta

enum<boolean>

required

Selects the beta API contract for this endpoint. Must be true.

Available options:

true

Response

Successful response (OK)

An execution thread within a session. Each session has one primary thread plus zero or more child threads spawned by the coordinator.

type

enum<string>

required

Available options:

session_thread

Example:

"session_thread"

string

required

Unique identifier for this thread.

Example:

"sthr_011CZkZVWa6oIjw0rgXZpnBt"

session_id

string

required

The session this thread belongs to.

Example:

"sesn_011CZkZAtmR3yMPDzynEDxu7"

status

enum<string>

required

Current execution status of the thread.

Available options:

running,

idle,

rescheduling,

terminated

Example:

"idle"

agent

object

required

Resolved agent definition for this thread. Snapshot of the agent at thread creation time.

Option 1
Option 2

Show child attributes

Example:

{
  "type": "agent",
  "id": "agent_011CZkYqphY8vELVzwCUpqiQ",
  "version": 1,
  "name": "Researcher",
  "description": "A focused research subagent.",
  "model": {
    "id": "claude-sonnet-4-6",
    "speed": "standard"
  },
  "system": "You are a research subagent that gathers and summarises sources for the coordinating agent.",
  "tools": [
    {
      "type": "agent_toolset_20260401",
      "default_config": {
        "enabled": true,
        "permission_policy": { "type": "always_ask" }
      },
      "configs": []
    }
  ],
  "mcp_servers": [],
  "skills": []
}

parent_thread_id

string | null

required

Parent thread that spawned this thread. Null for the primary thread.

Example:

null

created_at

string<date-time>

required

When the thread was created.

Example:

"2026-03-15T10:00:00Z"

updated_at

string<date-time>

required

When the thread was last updated.

Example:

"2026-03-15T10:00:00Z"

archived_at

string<date-time> | null

required

When the thread was archived. Null if not archived.

Example:

null

usage

object | null

required

Cumulative token usage for this thread. Null until the thread's first idle transition.

Show child attributes

Example:

{
  "input_tokens": 0,
  "output_tokens": 0,
  "cache_read_input_tokens": 0,
  "cache_creation": {
    "ephemeral_5m_input_tokens": 0,
    "ephemeral_1h_input_tokens": 0
  }
}

stats

object | null

required

Timing statistics for this thread. Null until the thread's first status transition.

Show child attributes

Example:

{
  "duration_seconds": 0,
  "startup_seconds": 0,
  "active_seconds": 0
}

Get Session Thread

curl --request GET \
  --url http://localhost:38080/v1/sessions/{session_id}/threads/{thread_id} \
  --header 'X-Api-Key: <api-key>'

const options = {method: 'GET', headers: {'X-Api-Key': '<api-key>'}};

fetch('http://localhost:38080/v1/sessions/{session_id}/threads/{thread_id}', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

package main

import (
	"fmt"
	"net/http"
	"io"
)

func main() {

	url := "http://localhost:38080/v1/sessions/{session_id}/threads/{thread_id}"

	req, _ := http.NewRequest("GET", url, nil)

	req.Header.Add("X-Api-Key", "<api-key>")

	res, _ := http.DefaultClient.Do(req)

	defer res.Body.Close()
	body, _ := io.ReadAll(res.Body)

	fmt.Println(string(body))

}

{
  "type": "session_thread",
  "id": "sthr_011CZkZVWa6oIjw0rgXZpnBt",
  "session_id": "sesn_011CZkZAtmR3yMPDzynEDxu7",
  "status": "idle",
  "agent": {
    "type": "agent",
    "id": "agent_011CZkYqphY8vELVzwCUpqiQ",
    "version": 1,
    "name": "Researcher",
    "description": "A focused research subagent.",
    "model": {
      "id": "claude-sonnet-4-6",
      "speed": "standard"
    },
    "system": "You are a research subagent that gathers and summarises sources for the coordinating agent.",
    "tools": [
      {
        "type": "agent_toolset_20260401",
        "default_config": {
          "enabled": true,
          "permission_policy": {
            "type": "always_ask"
          }
        },
        "configs": []
      }
    ],
    "mcp_servers": [],
    "skills": []
  },
  "parent_thread_id": null,
  "created_at": "2026-03-15T10:00:00Z",
  "updated_at": "2026-03-15T10:00:00Z",
  "archived_at": null,
  "usage": {
    "input_tokens": 0,
    "output_tokens": 0,
    "cache_read_input_tokens": 0,
    "cache_creation": {
      "ephemeral_5m_input_tokens": 0,
      "ephemeral_1h_input_tokens": 0
    }
  },
  "stats": {
    "duration_seconds": 0,
    "startup_seconds": 0,
    "active_seconds": 0
  }
}

{
  "error": {
    "message": "Invalid request",
    "type": "invalid_request_error"
  },
  "request_id": "<string>",
  "type": "error"
}

{
  "error": {
    "message": "Invalid request",
    "type": "invalid_request_error"
  },
  "request_id": "<string>",
  "type": "error"
}

{
  "error": {
    "message": "Invalid request",
    "type": "invalid_request_error"
  },
  "request_id": "<string>",
  "type": "error"
}

{
  "error": {
    "message": "Invalid request",
    "type": "invalid_request_error"
  },
  "request_id": "<string>",
  "type": "error"
}

{
  "error": {
    "message": "Invalid request",
    "type": "invalid_request_error"
  },
  "request_id": "<string>",
  "type": "error"
}

{
  "error": {
    "message": "Invalid request",
    "type": "invalid_request_error"
  },
  "request_id": "<string>",
  "type": "error"
}

{
  "error": {
    "message": "Invalid request",
    "type": "invalid_request_error"
  },
  "request_id": "<string>",
  "type": "error"
}

{
  "error": {
    "message": "Invalid request",
    "type": "invalid_request_error"
  },
  "request_id": "<string>",
  "type": "error"
}

{
  "error": {
    "message": "Invalid request",
    "type": "invalid_request_error"
  },
  "request_id": "<string>",
  "type": "error"
}

{
  "error": {
    "message": "Invalid request",
    "type": "invalid_request_error"
  },
  "request_id": "<string>",
  "type": "error"
}

{
  "error": {
    "message": "Invalid request",
    "type": "invalid_request_error"
  },
  "request_id": "<string>",
  "type": "error"
}

{
  "error": {
    "message": "Invalid request",
    "type": "invalid_request_error"
  },
  "request_id": "<string>",
  "type": "error"
}

{
  "error": {
    "message": "Invalid request",
    "type": "invalid_request_error"
  },
  "request_id": "<string>",
  "type": "error"
}

{
  "error": {
    "message": "Invalid request",
    "type": "invalid_request_error"
  },
  "request_id": "<string>",
  "type": "error"
}

{
  "error": {
    "message": "Invalid request",
    "type": "invalid_request_error"
  },
  "request_id": "<string>",
  "type": "error"
}

Get started

Core API

Managed Agents

Webhooks

Authorizations

Headers

Path Parameters

Query Parameters

Response