Anthropic Knowledge Hub

Work ​

Get Work Item ​

get /v1/environments/{environment_id}/work/{work_id}

Note: these endpoints are called automatically by the pre-built environment worker provided in the SDKs and CLI, for orchestrating sessions with self-hosted sandbox environments. They are included here as a reference; you do not need to invoke them directly.

Retrieve detailed information about a specific work item.

Path Parameters ​

  • environment_id: string

  • work_id: string

Header Parameters ​

  • "anthropic-beta": optional array of AnthropicBeta

    Optional header to specify the beta version(s) you want to use.

    • string

    • "message-batches-2024-09-24" or "prompt-caching-2024-07-31" or "computer-use-2024-10-22" or 22 more

      • "message-batches-2024-09-24"

      • "prompt-caching-2024-07-31"

      • "computer-use-2024-10-22"

      • "computer-use-2025-01-24"

      • "pdfs-2024-09-25"

      • "token-counting-2024-11-01"

      • "token-efficient-tools-2025-02-19"

      • "output-128k-2025-02-19"

      • "files-api-2025-04-14"

      • "mcp-client-2025-04-04"

      • "mcp-client-2025-11-20"

      • "dev-full-thinking-2025-05-14"

      • "interleaved-thinking-2025-05-14"

      • "code-execution-2025-05-22"

      • "extended-cache-ttl-2025-04-11"

      • "context-1m-2025-08-07"

      • "context-management-2025-06-27"

      • "model-context-window-exceeded-2025-08-26"

      • "skills-2025-10-02"

      • "fast-mode-2026-02-01"

      • "output-300k-2026-03-24"

      • "user-profiles-2026-03-24"

      • "advisor-tool-2026-03-01"

      • "managed-agents-2026-04-01"

      • "cache-diagnosis-2026-04-07"

Returns ​

  • BetaSelfHostedWork object { id, acknowledged_at, created_at, 9 more }

    Work resource representing a unit of work in a self-hosted environment.

    Work items are queued when sessions are created or when long-dormant sessions receive new messages. The environment worker polls for work to execute in a self-hosted sandbox.

    • id: string

      Work identifier (e.g., 'work_...')

    • acknowledged_at: string

      RFC 3339 timestamp when the work item was acknowledged and assigned to a self-hosted sandbox

    • created_at: string

      RFC 3339 timestamp when work was created

    • data: BetaSessionWorkData

      The actual work to be performed

      • id: string

        Session identifier (e.g., 'session_...')

      • type: "session"

        Type of work data

        • "session"

    • environment_id: string

      Environment identifier this work belongs to (e.g., env_...)

    • latest_heartbeat_at: string

      RFC 3339 timestamp of the most recent heartbeat

    • metadata: map[string]

      User-provided metadata key-value pairs associated with this work item

    • started_at: string

      RFC 3339 timestamp when work execution started

    • state: "queued" or "starting" or "active" or 2 more

      Current state of the work item

      • "queued"

      • "starting"

      • "active"

      • "stopping"

      • "stopped"

    • stop_requested_at: string

      RFC 3339 timestamp when stop was requested

    • stopped_at: string

      RFC 3339 timestamp when work execution stopped

    • type: "work"

      The type of object (always 'work')

      • "work"

Example ​

http
curl https://api.anthropic.com/v1/environments/$ENVIRONMENT_ID/work/$WORK_ID \
    -H 'anthropic-version: 2023-06-01' \
    -H 'anthropic-beta: managed-agents-2026-04-01' \
    -H "X-Api-Key: $ANTHROPIC_API_KEY"

Response ​

json
{
  "id": "id",
  "acknowledged_at": "acknowledged_at",
  "created_at": "created_at",
  "data": {
    "id": "id",
    "type": "session"
  },
  "environment_id": "environment_id",
  "latest_heartbeat_at": "latest_heartbeat_at",
  "metadata": {
    "foo": "string"
  },
  "started_at": "started_at",
  "state": "queued",
  "stop_requested_at": "stop_requested_at",
  "stopped_at": "stopped_at",
  "type": "work"
}

Poll for Work ​

get /v1/environments/{environment_id}/work/poll

Note: these endpoints are called automatically by the pre-built environment worker provided in the SDKs and CLI, for orchestrating sessions with self-hosted sandbox environments. They are included here as a reference; you do not need to invoke them directly.

Long poll for work items in the queue.

Path Parameters ​

  • environment_id: string

Query Parameters ​

  • block_ms: optional number

    How long to wait for work to arrive before returning. Must be 1-999 in milliseconds. Defaults to non-blocking (returns immediately if no work is available).

  • reclaim_older_than_ms: optional number

    Reclaim unacknowledged work items older than this many milliseconds. If omitted, uses the default (5000ms).

Header Parameters ​

  • "anthropic-beta": optional array of AnthropicBeta

    Optional header to specify the beta version(s) you want to use.

    • string

    • "message-batches-2024-09-24" or "prompt-caching-2024-07-31" or "computer-use-2024-10-22" or 22 more

      • "message-batches-2024-09-24"

      • "prompt-caching-2024-07-31"

      • "computer-use-2024-10-22"

      • "computer-use-2025-01-24"

      • "pdfs-2024-09-25"

      • "token-counting-2024-11-01"

      • "token-efficient-tools-2025-02-19"

      • "output-128k-2025-02-19"

      • "files-api-2025-04-14"

      • "mcp-client-2025-04-04"

      • "mcp-client-2025-11-20"

      • "dev-full-thinking-2025-05-14"

      • "interleaved-thinking-2025-05-14"

      • "code-execution-2025-05-22"

      • "extended-cache-ttl-2025-04-11"

      • "context-1m-2025-08-07"

      • "context-management-2025-06-27"

      • "model-context-window-exceeded-2025-08-26"

      • "skills-2025-10-02"

      • "fast-mode-2026-02-01"

      • "output-300k-2026-03-24"

      • "user-profiles-2026-03-24"

      • "advisor-tool-2026-03-01"

      • "managed-agents-2026-04-01"

      • "cache-diagnosis-2026-04-07"

  • "Anthropic-Worker-ID": optional string

    Unique identifier for the specific worker polling, used to track aggregated environment-level work metrics in Console

Returns ​

  • BetaSelfHostedWork object { id, acknowledged_at, created_at, 9 more }

    Work resource representing a unit of work in a self-hosted environment.

    Work items are queued when sessions are created or when long-dormant sessions receive new messages. The environment worker polls for work to execute in a self-hosted sandbox.

    • id: string

      Work identifier (e.g., 'work_...')

    • acknowledged_at: string

      RFC 3339 timestamp when the work item was acknowledged and assigned to a self-hosted sandbox

    • created_at: string

      RFC 3339 timestamp when work was created

    • data: BetaSessionWorkData

      The actual work to be performed

      • id: string

        Session identifier (e.g., 'session_...')

      • type: "session"

        Type of work data

        • "session"

    • environment_id: string

      Environment identifier this work belongs to (e.g., env_...)

    • latest_heartbeat_at: string

      RFC 3339 timestamp of the most recent heartbeat

    • metadata: map[string]

      User-provided metadata key-value pairs associated with this work item

    • started_at: string

      RFC 3339 timestamp when work execution started

    • state: "queued" or "starting" or "active" or 2 more

      Current state of the work item

      • "queued"

      • "starting"

      • "active"

      • "stopping"

      • "stopped"

    • stop_requested_at: string

      RFC 3339 timestamp when stop was requested

    • stopped_at: string

      RFC 3339 timestamp when work execution stopped

    • type: "work"

      The type of object (always 'work')

      • "work"

Example ​

http
curl https://api.anthropic.com/v1/environments/$ENVIRONMENT_ID/work/poll \
    -H 'anthropic-version: 2023-06-01' \
    -H 'anthropic-beta: managed-agents-2026-04-01' \
    -H "X-Api-Key: $ANTHROPIC_API_KEY"

Response ​

json
{
  "id": "id",
  "acknowledged_at": "acknowledged_at",
  "created_at": "created_at",
  "data": {
    "id": "id",
    "type": "session"
  },
  "environment_id": "environment_id",
  "latest_heartbeat_at": "latest_heartbeat_at",
  "metadata": {
    "foo": "string"
  },
  "started_at": "started_at",
  "state": "queued",
  "stop_requested_at": "stop_requested_at",
  "stopped_at": "stopped_at",
  "type": "work"
}

Acknowledge Work ​

post /v1/environments/{environment_id}/work/{work_id}/ack

Note: these endpoints are called automatically by the pre-built environment worker provided in the SDKs and CLI, for orchestrating sessions with self-hosted sandbox environments. They are included here as a reference; you do not need to invoke them directly.

Acknowledge receipt of a work item, transitioning it from 'queued' to 'starting' and removing it from the queue.

Path Parameters ​

  • environment_id: string

  • work_id: string

Header Parameters ​

  • "anthropic-beta": optional array of AnthropicBeta

    Optional header to specify the beta version(s) you want to use.

    • string

    • "message-batches-2024-09-24" or "prompt-caching-2024-07-31" or "computer-use-2024-10-22" or 22 more

      • "message-batches-2024-09-24"

      • "prompt-caching-2024-07-31"

      • "computer-use-2024-10-22"

      • "computer-use-2025-01-24"

      • "pdfs-2024-09-25"

      • "token-counting-2024-11-01"

      • "token-efficient-tools-2025-02-19"

      • "output-128k-2025-02-19"

      • "files-api-2025-04-14"

      • "mcp-client-2025-04-04"

      • "mcp-client-2025-11-20"

      • "dev-full-thinking-2025-05-14"

      • "interleaved-thinking-2025-05-14"

      • "code-execution-2025-05-22"

      • "extended-cache-ttl-2025-04-11"

      • "context-1m-2025-08-07"

      • "context-management-2025-06-27"

      • "model-context-window-exceeded-2025-08-26"

      • "skills-2025-10-02"

      • "fast-mode-2026-02-01"

      • "output-300k-2026-03-24"

      • "user-profiles-2026-03-24"

      • "advisor-tool-2026-03-01"

      • "managed-agents-2026-04-01"

      • "cache-diagnosis-2026-04-07"

Returns ​

  • BetaSelfHostedWork object { id, acknowledged_at, created_at, 9 more }

    Work resource representing a unit of work in a self-hosted environment.

    Work items are queued when sessions are created or when long-dormant sessions receive new messages. The environment worker polls for work to execute in a self-hosted sandbox.

    • id: string

      Work identifier (e.g., 'work_...')

    • acknowledged_at: string

      RFC 3339 timestamp when the work item was acknowledged and assigned to a self-hosted sandbox

    • created_at: string

      RFC 3339 timestamp when work was created

    • data: BetaSessionWorkData

      The actual work to be performed

      • id: string

        Session identifier (e.g., 'session_...')

      • type: "session"

        Type of work data

        • "session"

    • environment_id: string

      Environment identifier this work belongs to (e.g., env_...)

    • latest_heartbeat_at: string

      RFC 3339 timestamp of the most recent heartbeat

    • metadata: map[string]

      User-provided metadata key-value pairs associated with this work item

    • started_at: string

      RFC 3339 timestamp when work execution started

    • state: "queued" or "starting" or "active" or 2 more

      Current state of the work item

      • "queued"

      • "starting"

      • "active"

      • "stopping"

      • "stopped"

    • stop_requested_at: string

      RFC 3339 timestamp when stop was requested

    • stopped_at: string

      RFC 3339 timestamp when work execution stopped

    • type: "work"

      The type of object (always 'work')

      • "work"

Example ​

http
curl https://api.anthropic.com/v1/environments/$ENVIRONMENT_ID/work/$WORK_ID/ack \
    -X POST \
    -H 'anthropic-version: 2023-06-01' \
    -H 'anthropic-beta: managed-agents-2026-04-01' \
    -H "X-Api-Key: $ANTHROPIC_API_KEY"

Response ​

json
{
  "id": "id",
  "acknowledged_at": "acknowledged_at",
  "created_at": "created_at",
  "data": {
    "id": "id",
    "type": "session"
  },
  "environment_id": "environment_id",
  "latest_heartbeat_at": "latest_heartbeat_at",
  "metadata": {
    "foo": "string"
  },
  "started_at": "started_at",
  "state": "queued",
  "stop_requested_at": "stop_requested_at",
  "stopped_at": "stopped_at",
  "type": "work"
}

Record Heartbeat ​

post /v1/environments/{environment_id}/work/{work_id}/heartbeat

Note: these endpoints are called automatically by the pre-built environment worker provided in the SDKs and CLI, for orchestrating sessions with self-hosted sandbox environments. They are included here as a reference; you do not need to invoke them directly.

Record a heartbeat for a work item to maintain the lease.

Path Parameters ​

  • environment_id: string

  • work_id: string

Query Parameters ​

  • desired_ttl_seconds: optional number

    Desired TTL in seconds

  • expected_last_heartbeat: optional string

    Expected last_heartbeat for conditional update (optimistic concurrency). Use literal 'NO_HEARTBEAT' to claim an unclaimed lease (first heartbeat). For subsequent heartbeats, echo the server's previous last_heartbeat value exactly. Returns 412 Precondition Failed if the actual value doesn't match.

Header Parameters ​

  • "anthropic-beta": optional array of AnthropicBeta

    Optional header to specify the beta version(s) you want to use.

    • string

    • "message-batches-2024-09-24" or "prompt-caching-2024-07-31" or "computer-use-2024-10-22" or 22 more

      • "message-batches-2024-09-24"

      • "prompt-caching-2024-07-31"

      • "computer-use-2024-10-22"

      • "computer-use-2025-01-24"

      • "pdfs-2024-09-25"

      • "token-counting-2024-11-01"

      • "token-efficient-tools-2025-02-19"

      • "output-128k-2025-02-19"

      • "files-api-2025-04-14"

      • "mcp-client-2025-04-04"

      • "mcp-client-2025-11-20"

      • "dev-full-thinking-2025-05-14"

      • "interleaved-thinking-2025-05-14"

      • "code-execution-2025-05-22"

      • "extended-cache-ttl-2025-04-11"

      • "context-1m-2025-08-07"

      • "context-management-2025-06-27"

      • "model-context-window-exceeded-2025-08-26"

      • "skills-2025-10-02"

      • "fast-mode-2026-02-01"

      • "output-300k-2026-03-24"

      • "user-profiles-2026-03-24"

      • "advisor-tool-2026-03-01"

      • "managed-agents-2026-04-01"

      • "cache-diagnosis-2026-04-07"

Returns ​

  • BetaSelfHostedWorkHeartbeatResponse object { last_heartbeat, lease_extended, state, 2 more }

    Response after recording a heartbeat for a work item.

    • last_heartbeat: string

      RFC 3339 timestamp of the actual heartbeat from DB

    • lease_extended: boolean

      Whether the heartbeat succeeded in extending the lease

    • state: "queued" or "starting" or "active" or 2 more

      Current state of the work item (active/stopping/stopped)

      • "queued"

      • "starting"

      • "active"

      • "stopping"

      • "stopped"

    • ttl_seconds: number

      Effective TTL applied to the lease

    • type: "work_heartbeat"

      The type of response

      • "work_heartbeat"

Example ​

http
curl https://api.anthropic.com/v1/environments/$ENVIRONMENT_ID/work/$WORK_ID/heartbeat \
    -X POST \
    -H 'anthropic-version: 2023-06-01' \
    -H 'anthropic-beta: managed-agents-2026-04-01' \
    -H "X-Api-Key: $ANTHROPIC_API_KEY"

Response ​

json
{
  "last_heartbeat": "last_heartbeat",
  "lease_extended": true,
  "state": "queued",
  "ttl_seconds": 0,
  "type": "work_heartbeat"
}

Stop Work ​

post /v1/environments/{environment_id}/work/{work_id}/stop

Note: these endpoints are called automatically by the pre-built environment worker provided in the SDKs and CLI, for orchestrating sessions with self-hosted sandbox environments. They are included here as a reference; you do not need to invoke them directly.

Stop a work item, initiating graceful or forced shutdown.

Path Parameters ​

  • environment_id: string

  • work_id: string

Header Parameters ​

  • "anthropic-beta": optional array of AnthropicBeta

    Optional header to specify the beta version(s) you want to use.

    • string

    • "message-batches-2024-09-24" or "prompt-caching-2024-07-31" or "computer-use-2024-10-22" or 22 more

      • "message-batches-2024-09-24"

      • "prompt-caching-2024-07-31"

      • "computer-use-2024-10-22"

      • "computer-use-2025-01-24"

      • "pdfs-2024-09-25"

      • "token-counting-2024-11-01"

      • "token-efficient-tools-2025-02-19"

      • "output-128k-2025-02-19"

      • "files-api-2025-04-14"

      • "mcp-client-2025-04-04"

      • "mcp-client-2025-11-20"

      • "dev-full-thinking-2025-05-14"

      • "interleaved-thinking-2025-05-14"

      • "code-execution-2025-05-22"

      • "extended-cache-ttl-2025-04-11"

      • "context-1m-2025-08-07"

      • "context-management-2025-06-27"

      • "model-context-window-exceeded-2025-08-26"

      • "skills-2025-10-02"

      • "fast-mode-2026-02-01"

      • "output-300k-2026-03-24"

      • "user-profiles-2026-03-24"

      • "advisor-tool-2026-03-01"

      • "managed-agents-2026-04-01"

      • "cache-diagnosis-2026-04-07"

Body Parameters ​

  • force: optional boolean

    If true, immediately stop work without graceful shutdown

Returns ​

  • BetaSelfHostedWork object { id, acknowledged_at, created_at, 9 more }

    Work resource representing a unit of work in a self-hosted environment.

    Work items are queued when sessions are created or when long-dormant sessions receive new messages. The environment worker polls for work to execute in a self-hosted sandbox.

    • id: string

      Work identifier (e.g., 'work_...')

    • acknowledged_at: string

      RFC 3339 timestamp when the work item was acknowledged and assigned to a self-hosted sandbox

    • created_at: string

      RFC 3339 timestamp when work was created

    • data: BetaSessionWorkData

      The actual work to be performed

      • id: string

        Session identifier (e.g., 'session_...')

      • type: "session"

        Type of work data

        • "session"

    • environment_id: string

      Environment identifier this work belongs to (e.g., env_...)

    • latest_heartbeat_at: string

      RFC 3339 timestamp of the most recent heartbeat

    • metadata: map[string]

      User-provided metadata key-value pairs associated with this work item

    • started_at: string

      RFC 3339 timestamp when work execution started

    • state: "queued" or "starting" or "active" or 2 more

      Current state of the work item

      • "queued"

      • "starting"

      • "active"

      • "stopping"

      • "stopped"

    • stop_requested_at: string

      RFC 3339 timestamp when stop was requested

    • stopped_at: string

      RFC 3339 timestamp when work execution stopped

    • type: "work"

      The type of object (always 'work')

      • "work"

Example ​

http
curl https://api.anthropic.com/v1/environments/$ENVIRONMENT_ID/work/$WORK_ID/stop \
    -H 'Content-Type: application/json' \
    -H 'anthropic-version: 2023-06-01' \
    -H 'anthropic-beta: managed-agents-2026-04-01' \
    -H "X-Api-Key: $ANTHROPIC_API_KEY" \
    -d '{}'

Response ​

json
{
  "id": "id",
  "acknowledged_at": "acknowledged_at",
  "created_at": "created_at",
  "data": {
    "id": "id",
    "type": "session"
  },
  "environment_id": "environment_id",
  "latest_heartbeat_at": "latest_heartbeat_at",
  "metadata": {
    "foo": "string"
  },
  "started_at": "started_at",
  "state": "queued",
  "stop_requested_at": "stop_requested_at",
  "stopped_at": "stopped_at",
  "type": "work"
}

List Work Items ​

get /v1/environments/{environment_id}/work

Note: these endpoints are called automatically by the pre-built environment worker provided in the SDKs and CLI, for orchestrating sessions with self-hosted sandbox environments. They are included here as a reference; you do not need to invoke them directly.

List work items in an environment.

Path Parameters ​

  • environment_id: string

Query Parameters ​

  • limit: optional number

    Maximum number of work items to return

  • page: optional string

    Opaque cursor from previous response for pagination

Header Parameters ​

  • "anthropic-beta": optional array of AnthropicBeta

    Optional header to specify the beta version(s) you want to use.

    • string

    • "message-batches-2024-09-24" or "prompt-caching-2024-07-31" or "computer-use-2024-10-22" or 22 more

      • "message-batches-2024-09-24"

      • "prompt-caching-2024-07-31"

      • "computer-use-2024-10-22"

      • "computer-use-2025-01-24"

      • "pdfs-2024-09-25"

      • "token-counting-2024-11-01"

      • "token-efficient-tools-2025-02-19"

      • "output-128k-2025-02-19"

      • "files-api-2025-04-14"

      • "mcp-client-2025-04-04"

      • "mcp-client-2025-11-20"

      • "dev-full-thinking-2025-05-14"

      • "interleaved-thinking-2025-05-14"

      • "code-execution-2025-05-22"

      • "extended-cache-ttl-2025-04-11"

      • "context-1m-2025-08-07"

      • "context-management-2025-06-27"

      • "model-context-window-exceeded-2025-08-26"

      • "skills-2025-10-02"

      • "fast-mode-2026-02-01"

      • "output-300k-2026-03-24"

      • "user-profiles-2026-03-24"

      • "advisor-tool-2026-03-01"

      • "managed-agents-2026-04-01"

      • "cache-diagnosis-2026-04-07"

Returns ​

  • BetaSelfHostedWorkListResponse object { data, next_page }

    Response when listing work items with cursor-based pagination.

    • data: array of BetaSelfHostedWork

      List of work items

      • id: string

        Work identifier (e.g., 'work_...')

      • acknowledged_at: string

        RFC 3339 timestamp when the work item was acknowledged and assigned to a self-hosted sandbox

      • created_at: string

        RFC 3339 timestamp when work was created

      • data: BetaSessionWorkData

        The actual work to be performed

        • id: string

          Session identifier (e.g., 'session_...')

        • type: "session"

          Type of work data

          • "session"

      • environment_id: string

        Environment identifier this work belongs to (e.g., env_...)

      • latest_heartbeat_at: string

        RFC 3339 timestamp of the most recent heartbeat

      • metadata: map[string]

        User-provided metadata key-value pairs associated with this work item

      • started_at: string

        RFC 3339 timestamp when work execution started

      • state: "queued" or "starting" or "active" or 2 more

        Current state of the work item

        • "queued"

        • "starting"

        • "active"

        • "stopping"

        • "stopped"

      • stop_requested_at: string

        RFC 3339 timestamp when stop was requested

      • stopped_at: string

        RFC 3339 timestamp when work execution stopped

      • type: "work"

        The type of object (always 'work')

        • "work"

    • next_page: string

      Opaque cursor for fetching the next page of results

Example ​

http
curl https://api.anthropic.com/v1/environments/$ENVIRONMENT_ID/work \
    -H 'anthropic-version: 2023-06-01' \
    -H 'anthropic-beta: managed-agents-2026-04-01' \
    -H "X-Api-Key: $ANTHROPIC_API_KEY"

Response ​

json
{
  "data": [
    {
      "id": "id",
      "acknowledged_at": "acknowledged_at",
      "created_at": "created_at",
      "data": {
        "id": "id",
        "type": "session"
      },
      "environment_id": "environment_id",
      "latest_heartbeat_at": "latest_heartbeat_at",
      "metadata": {
        "foo": "string"
      },
      "started_at": "started_at",
      "state": "queued",
      "stop_requested_at": "stop_requested_at",
      "stopped_at": "stopped_at",
      "type": "work"
    }
  ],
  "next_page": "next_page"
}

Update Work Item ​

post /v1/environments/{environment_id}/work/{work_id}

Note: these endpoints are called automatically by the pre-built environment worker provided in the SDKs and CLI, for orchestrating sessions with self-hosted sandbox environments. They are included here as a reference; you do not need to invoke them directly.

Update work item metadata with merge semantics.

Path Parameters ​

  • environment_id: string

  • work_id: string

Header Parameters ​

  • "anthropic-beta": optional array of AnthropicBeta

    Optional header to specify the beta version(s) you want to use.

    • string

    • "message-batches-2024-09-24" or "prompt-caching-2024-07-31" or "computer-use-2024-10-22" or 22 more

      • "message-batches-2024-09-24"

      • "prompt-caching-2024-07-31"

      • "computer-use-2024-10-22"

      • "computer-use-2025-01-24"

      • "pdfs-2024-09-25"

      • "token-counting-2024-11-01"

      • "token-efficient-tools-2025-02-19"

      • "output-128k-2025-02-19"

      • "files-api-2025-04-14"

      • "mcp-client-2025-04-04"

      • "mcp-client-2025-11-20"

      • "dev-full-thinking-2025-05-14"

      • "interleaved-thinking-2025-05-14"

      • "code-execution-2025-05-22"

      • "extended-cache-ttl-2025-04-11"

      • "context-1m-2025-08-07"

      • "context-management-2025-06-27"

      • "model-context-window-exceeded-2025-08-26"

      • "skills-2025-10-02"

      • "fast-mode-2026-02-01"

      • "output-300k-2026-03-24"

      • "user-profiles-2026-03-24"

      • "advisor-tool-2026-03-01"

      • "managed-agents-2026-04-01"

      • "cache-diagnosis-2026-04-07"

Body Parameters ​

  • metadata: map[string]

    Metadata patch. Set a key to a string to upsert it, or to null to delete it. Omit the field to preserve existing metadata.

Returns ​

  • BetaSelfHostedWork object { id, acknowledged_at, created_at, 9 more }

    Work resource representing a unit of work in a self-hosted environment.

    Work items are queued when sessions are created or when long-dormant sessions receive new messages. The environment worker polls for work to execute in a self-hosted sandbox.

    • id: string

      Work identifier (e.g., 'work_...')

    • acknowledged_at: string

      RFC 3339 timestamp when the work item was acknowledged and assigned to a self-hosted sandbox

    • created_at: string

      RFC 3339 timestamp when work was created

    • data: BetaSessionWorkData

      The actual work to be performed

      • id: string

        Session identifier (e.g., 'session_...')

      • type: "session"

        Type of work data

        • "session"

    • environment_id: string

      Environment identifier this work belongs to (e.g., env_...)

    • latest_heartbeat_at: string

      RFC 3339 timestamp of the most recent heartbeat

    • metadata: map[string]

      User-provided metadata key-value pairs associated with this work item

    • started_at: string

      RFC 3339 timestamp when work execution started

    • state: "queued" or "starting" or "active" or 2 more

      Current state of the work item

      • "queued"

      • "starting"

      • "active"

      • "stopping"

      • "stopped"

    • stop_requested_at: string

      RFC 3339 timestamp when stop was requested

    • stopped_at: string

      RFC 3339 timestamp when work execution stopped

    • type: "work"

      The type of object (always 'work')

      • "work"

Example ​

http
curl https://api.anthropic.com/v1/environments/$ENVIRONMENT_ID/work/$WORK_ID \
    -H 'Content-Type: application/json' \
    -H 'anthropic-version: 2023-06-01' \
    -H 'anthropic-beta: managed-agents-2026-04-01' \
    -H "X-Api-Key: $ANTHROPIC_API_KEY" \
    -d '{
          "metadata": {
            "foo": "string"
          }
        }'

Response ​

json
{
  "id": "id",
  "acknowledged_at": "acknowledged_at",
  "created_at": "created_at",
  "data": {
    "id": "id",
    "type": "session"
  },
  "environment_id": "environment_id",
  "latest_heartbeat_at": "latest_heartbeat_at",
  "metadata": {
    "foo": "string"
  },
  "started_at": "started_at",
  "state": "queued",
  "stop_requested_at": "stop_requested_at",
  "stopped_at": "stopped_at",
  "type": "work"
}

Get Queue Statistics ​

get /v1/environments/{environment_id}/work/stats

Get statistics about the work queue for an environment.

Path Parameters ​

  • environment_id: string

Header Parameters ​

  • "anthropic-beta": optional array of AnthropicBeta

    Optional header to specify the beta version(s) you want to use.

    • string

    • "message-batches-2024-09-24" or "prompt-caching-2024-07-31" or "computer-use-2024-10-22" or 22 more

      • "message-batches-2024-09-24"

      • "prompt-caching-2024-07-31"

      • "computer-use-2024-10-22"

      • "computer-use-2025-01-24"

      • "pdfs-2024-09-25"

      • "token-counting-2024-11-01"

      • "token-efficient-tools-2025-02-19"

      • "output-128k-2025-02-19"

      • "files-api-2025-04-14"

      • "mcp-client-2025-04-04"

      • "mcp-client-2025-11-20"

      • "dev-full-thinking-2025-05-14"

      • "interleaved-thinking-2025-05-14"

      • "code-execution-2025-05-22"

      • "extended-cache-ttl-2025-04-11"

      • "context-1m-2025-08-07"

      • "context-management-2025-06-27"

      • "model-context-window-exceeded-2025-08-26"

      • "skills-2025-10-02"

      • "fast-mode-2026-02-01"

      • "output-300k-2026-03-24"

      • "user-profiles-2026-03-24"

      • "advisor-tool-2026-03-01"

      • "managed-agents-2026-04-01"

      • "cache-diagnosis-2026-04-07"

Returns ​

  • BetaSelfHostedWorkQueueStats object { depth, oldest_queued_at, pending, 2 more }

    Statistics about the work queue for an environment.

    Uses Redis Stream consumer group metrics for O(1) queries.

    • depth: number

      Number of work items waiting to be picked up (lag from consumer group)

    • oldest_queued_at: string

      RFC 3339 timestamp of oldest item in the work stream (includes both queued and pending items), null if stream empty

    • pending: number

      Number of work items being processed (polled but not acknowledged)

    • type: "work_queue_stats"

      The type of object

      • "work_queue_stats"

    • workers_polling: number

      Number of workers that have polled for work in the last 30 seconds. Requires worker_id to be sent with poll requests.

Example ​

http
curl https://api.anthropic.com/v1/environments/$ENVIRONMENT_ID/work/stats \
    -H 'anthropic-version: 2023-06-01' \
    -H 'anthropic-beta: managed-agents-2026-04-01' \
    -H "X-Api-Key: $ANTHROPIC_API_KEY"

Response ​

json
{
  "depth": 0,
  "oldest_queued_at": "oldest_queued_at",
  "pending": 0,
  "type": "work_queue_stats",
  "workers_polling": 0
}

Domain Types ​

Beta Self Hosted Work ​

  • BetaSelfHostedWork object { id, acknowledged_at, created_at, 9 more }

    Work resource representing a unit of work in a self-hosted environment.

    Work items are queued when sessions are created or when long-dormant sessions receive new messages. The environment worker polls for work to execute in a self-hosted sandbox.

    • id: string

      Work identifier (e.g., 'work_...')

    • acknowledged_at: string

      RFC 3339 timestamp when the work item was acknowledged and assigned to a self-hosted sandbox

    • created_at: string

      RFC 3339 timestamp when work was created

    • data: BetaSessionWorkData

      The actual work to be performed

      • id: string

        Session identifier (e.g., 'session_...')

      • type: "session"

        Type of work data

        • "session"

    • environment_id: string

      Environment identifier this work belongs to (e.g., env_...)

    • latest_heartbeat_at: string

      RFC 3339 timestamp of the most recent heartbeat

    • metadata: map[string]

      User-provided metadata key-value pairs associated with this work item

    • started_at: string

      RFC 3339 timestamp when work execution started

    • state: "queued" or "starting" or "active" or 2 more

      Current state of the work item

      • "queued"

      • "starting"

      • "active"

      • "stopping"

      • "stopped"

    • stop_requested_at: string

      RFC 3339 timestamp when stop was requested

    • stopped_at: string

      RFC 3339 timestamp when work execution stopped

    • type: "work"

      The type of object (always 'work')

      • "work"

Beta Self Hosted Work Heartbeat Response ​

  • BetaSelfHostedWorkHeartbeatResponse object { last_heartbeat, lease_extended, state, 2 more }

    Response after recording a heartbeat for a work item.

    • last_heartbeat: string

      RFC 3339 timestamp of the actual heartbeat from DB

    • lease_extended: boolean

      Whether the heartbeat succeeded in extending the lease

    • state: "queued" or "starting" or "active" or 2 more

      Current state of the work item (active/stopping/stopped)

      • "queued"

      • "starting"

      • "active"

      • "stopping"

      • "stopped"

    • ttl_seconds: number

      Effective TTL applied to the lease

    • type: "work_heartbeat"

      The type of response

      • "work_heartbeat"

Beta Self Hosted Work List Response ​

  • BetaSelfHostedWorkListResponse object { data, next_page }

    Response when listing work items with cursor-based pagination.

    • data: array of BetaSelfHostedWork

      List of work items

      • id: string

        Work identifier (e.g., 'work_...')

      • acknowledged_at: string

        RFC 3339 timestamp when the work item was acknowledged and assigned to a self-hosted sandbox

      • created_at: string

        RFC 3339 timestamp when work was created

      • data: BetaSessionWorkData

        The actual work to be performed

        • id: string

          Session identifier (e.g., 'session_...')

        • type: "session"

          Type of work data

          • "session"

      • environment_id: string

        Environment identifier this work belongs to (e.g., env_...)

      • latest_heartbeat_at: string

        RFC 3339 timestamp of the most recent heartbeat

      • metadata: map[string]

        User-provided metadata key-value pairs associated with this work item

      • started_at: string

        RFC 3339 timestamp when work execution started

      • state: "queued" or "starting" or "active" or 2 more

        Current state of the work item

        • "queued"

        • "starting"

        • "active"

        • "stopping"

        • "stopped"

      • stop_requested_at: string

        RFC 3339 timestamp when stop was requested

      • stopped_at: string

        RFC 3339 timestamp when work execution stopped

      • type: "work"

        The type of object (always 'work')

        • "work"

    • next_page: string

      Opaque cursor for fetching the next page of results

Beta Self Hosted Work Queue Stats ​

  • BetaSelfHostedWorkQueueStats object { depth, oldest_queued_at, pending, 2 more }

    Statistics about the work queue for an environment.

    Uses Redis Stream consumer group metrics for O(1) queries.

    • depth: number

      Number of work items waiting to be picked up (lag from consumer group)

    • oldest_queued_at: string

      RFC 3339 timestamp of oldest item in the work stream (includes both queued and pending items), null if stream empty

    • pending: number

      Number of work items being processed (polled but not acknowledged)

    • type: "work_queue_stats"

      The type of object

      • "work_queue_stats"

    • workers_polling: number

      Number of workers that have polled for work in the last 30 seconds. Requires worker_id to be sent with poll requests.

Beta Self Hosted Work Stop Request ​

  • BetaSelfHostedWorkStopRequest object { force }

    Request to stop a work item.

    • force: optional boolean

      If true, immediately stop work without graceful shutdown

Beta Self Hosted Work Update Request ​

  • BetaSelfHostedWorkUpdateRequest object { metadata }

    Request to update work item metadata.

    • metadata: map[string]

      Metadata patch. Set a key to a string to upsert it, or to null to delete it. Omit the field to preserve existing metadata.

Beta Session Work Data ​

  • BetaSessionWorkData object { id, type }

    Work data for session work items.

    This resource type is used when work represents a session that needs to be executed in a self-hosted environment.

    • id: string

      Session identifier (e.g., 'session_...')

    • type: "session"

      Type of work data

      • "session"