OpenAPI 3.1.0raw.githubusercontent.com2026-08-15140179507.6 KB

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Swarm runs

Cancel a journey run

Stops a run and settles its in-flight attempts. IDEMPOTENT: cancelling an already-cancelled run answers 200 with alreadyCanceled: true and finalized: 0, not a 409.

Addressed entirely by the path runId — there is no body.

Deliberately NOT behind the beta gate: cancelling REDUCES exposure and spend, so an organization that loses the flag can still stop a run that is under way.

post/projects/{projectId}/journey-runs/{runId}/cancel

Response

The run was cancelled (or already was).

idstring required

statusstring required

The run's terminal status after the cancel settled it.

canceledtrue required

alreadyCanceledboolean required

True when the run was already cancelled and this call did nothing.

finalizedinteger required

Attempts this call moved to terminal. Zero on an idempotent replay.