> This page is for version v2025-04-21.
> For other versions, use one of these documentation indexes:
> - v2026-02-09 (default): https://docs.extend.ai/2026-02-09/llms.txt
> - v2025-04-21: https://docs.extend.ai/2025-04-21/llms.txt
> - v2024-12-23: https://docs.extend.ai/2024-12-23/llms.txt

> ## Documentation Index
> Fetch the complete documentation index at: https://docs.extend.ai/llms.txt
> Use this file to discover all available pages before exploring further.
>
> ## API version
> The current API version is `2026-02-09`, served at the site root (no version prefix in URLs).
> If this page URL contains `/2025-04-21/` or `/2024-12-23/`, you are reading an older API version.
> Prefer the current docs at https://docs.extend.ai/llms.txt unless the user explicitly needs that older version.
> Do not treat older-version pages as the source of truth for new integrations.

# Cancel in-flight parse runs

> POST /parse_runs/{id}/cancel aborts an in-progress parse run on the 2026-02-09 API and sets its status to CANCELLED.

You can now cancel parse runs that are still processing. Call `POST /parse_runs/{id}/cancel` on the 2026-02-09 API to cancel an in-progress parse run and set its status to `CANCELLED`. Only runs with status `PROCESSING` can be cancelled.

* **`POST /parse_runs/{id}/cancel`** — abort an in-progress parse run (2026-02-09 API)