# title: List Work Items url: https://platform.claude.com/docs/en/api/beta/environments/work/list

# 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

  default: 20, maximum: 1000, minimum: 1

• page: optional string

  Opaque cursor from previous response for pagination

# Headers

• "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 43 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"

    • "user-profiles-2026-08-18"

    • "user-profiles-2026-09-04"

    • "advisor-tool-2026-03-01"

    • "managed-agents-2026-04-01"

    • "cache-diagnosis-2026-04-07"

    • "dreaming-2026-04-21"

    • "thinking-token-count-2026-05-13"

    • "server-side-fallback-2026-06-01"

    • "server-side-fallback-2026-07-01"

    • "fallback-credit-2026-06-01"

    • "fallback-credit-2026-07-01"

    • "agent-memory-2026-07-22"

    • "mid-conversation-tool-changes-2026-07-01"

    • "compact-2026-01-12"

    • "computer-use-2025-11-24"

    • "mcp-tunnels-2026-06-22"

    • "structured-outputs-2025-11-13"

    • "task-budgets-2026-03-13"

    • "thinking-display-updates-2026-08-18"

    • "ce-user-management-2026-07-13"

    • "mid-conversation-output-config-2026-07-01"

    • "thinking-binding-controls-2026-08-01"

    • "mid-conversation-system-clear-at-2026-08-21"

    • "compact-2026-09-04"

# Returns

• BetaSelfHostedWorkListResponse object

  Response when listing work items with cursor-based pagination.

  • data: array of BetaSelfHostedWork

    List of work items

    • type: "work"

      The type of object (always 'work')

      default: work

    • id: string

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

    • acknowledged_at: string or null

      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

      • type: "session"

        Type of work data

      • id: string

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

    • environment_id: string

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

    • latest_heartbeat_at: string or null

      RFC 3339 timestamp of the most recent heartbeat

    • metadata: map[string]

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

    • secret: string or null

      Credential payload used by the environment worker to execute this work item. May be populated when polling for work; null on all other retrieval paths.

    • started_at: string or null

      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 or null

      RFC 3339 timestamp when stop was requested

    • stopped_at: string or null

      RFC 3339 timestamp when work execution stopped

  • next_page: string or null

    Opaque cursor for fetching the next page of results

# Example

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 (200)

{
  "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"
      },
      "secret": "secret",
      "started_at": "started_at",
      "state": "queued",
      "stop_requested_at": "stop_requested_at",
      "stopped_at": "stopped_at",
      "type": "work"
    }
  ],
  "next_page": "next_page"
}