---
title: "POST /experimental/launch-runs/{id}/cancel"
method: POST
path: "/experimental/launch-runs/{id}/cancel"
tags: ["Launch Runs"]
---

# POST /experimental/launch-runs/{id}/cancel

`POST /experimental/launch-runs/{id}/cancel`

Requests cancellation of a launch run: cancels its Temporal workflow so in-flight sandbox work stops. Idempotent: a no-op for a run that has already finished.

## Path parameters

- `id` string, uuid, required

## Headers

- `Authorization` string

## Response `200`

Default Response

- object
  - `links` object, required
    - `self` string, uri, required
  - `data` object, required
    - `id` string, uuid, required
    - `type` 'launch-run', required
    - `attributes` object, required
      - `status` union, required
        - 'pending'
        - 'completed'
        - 'failed'
        - 'cancelled'

## Other responses

- `401` — Unauthorized
- `403` — Forbidden
- `404` — Not Found
- `500` — Internal Server Error

---

[API](https://skmtc.net/tessl/apis/tessl-api.md) · [All operations](https://skmtc.net/tessl/apis/tessl-api/llms.txt) · [OpenAPI document](https://skmtc-service-staging.skmtc.workers.dev/v1/apis/tessl/tessl-api/revisions/9be5c2a862b7/schema)