> ## Documentation Index
> Fetch the complete documentation index at: https://docs.infragrid.ai/llms.txt
> Use this file to discover all available pages before exploring further.

# Cancel a Blueprint run

> Cancel one API-triggered Blueprint run.

Requires `blueprint_runs:cancel`. Cancellation is idempotent.

<ParamField path="run_id" type="uuid" required>
  Blueprint run identifier.
</ParamField>

## Response

Returns the cancelled or already-terminal Blueprint run.

<ResponseField name="status" type="string" required>
  Usually `cancelled`, or the existing terminal status when work finished first.
</ResponseField>

<Note>
  External website effects completed before cancellation may not be reversible.
</Note>


## Related topics

- [Authentication](/authentication.md)
- [MCP server](/tools/mcp.md)
- [Cancel a run](/reference/runs/cancel.md)
- [Browser tasks](/guides/browser-tasks.md)
- [Run a Blueprint](/reference/blueprints/run.md)