Claude Platform Docs

Record Heartbeat

beta.environments.work.heartbeat(strwork_id, WorkHeartbeatParams**kwargs) -> BetaSelfHostedWorkHeartbeatResponse
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.

Parameters
environment_id: str
work_id: str
desired_ttl_seconds: Optional[int]

Desired TTL in seconds

expected_last_heartbeat: Optional[str]

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.

betas: Optional[List[AnthropicBetaParam]]

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

One of the following:
str
Literal["message-batches-2024-09-24", "prompt-caching-2024-07-31", "computer-use-2024-10-22", 38 more]
One of the following:
"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"
"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"
Returns
class BetaSelfHostedWorkHeartbeatResponse:

Response after recording a heartbeat for a work item.

last_heartbeat: str

RFC 3339 timestamp of the actual heartbeat from DB

lease_extended: bool

Whether the heartbeat succeeded in extending the lease

state: Literal["queued", "starting", "active", 2 more]

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

One of the following:
"queued"
"starting"
"active"
"stopping"
"stopped"
ttl_seconds: int

Effective TTL applied to the lease

type: Literal["work_heartbeat"]

The type of response

defaultwork_heartbeat

Record Heartbeat

import os
from anthropic import Anthropic

client = Anthropic(
    api_key=os.environ.get(
        "ANTHROPIC_API_KEY"
    ),  # This is the default and can be omitted
)
beta_self_hosted_work_heartbeat_response = client.beta.environments.work.heartbeat(
    work_id="work_id",
    environment_id="env_011CZkZ9X2dpNyB7HsEFoRfW",
)
print(beta_self_hosted_work_heartbeat_response.last_heartbeat)
{
  "last_heartbeat": "last_heartbeat",
  "lease_extended": true,
  "state": "queued",
  "ttl_seconds": 0,
  "type": "work_heartbeat"
}
Returns Examples
{
  "last_heartbeat": "last_heartbeat",
  "lease_extended": true,
  "state": "queued",
  "ttl_seconds": 0,
  "type": "work_heartbeat"
}