---
title: "Cancel a pending or in-progress prompt optimization job."
method: POST
path: "/api/v2/projects/{project_id}/prompt-optimization-jobs/{job_id}/cancel"
tags: ["Prompt Optimization"]
---

# Cancel a pending or in-progress prompt optimization job.

`POST /api/v2/projects/{project_id}/prompt-optimization-jobs/{job_id}/cancel`

Only jobs that have not yet completed can be cancelled.

## Path parameters

- `project_id` string, required
- `job_id` string, required

## Response `200`

EmptyResponse()

- object

---

[API](https://skmtc.net/freeplay/apis/freeplay-api.md) · [All operations](https://skmtc.net/freeplay/apis/freeplay-api/llms.txt) · [OpenAPI document](https://skmtc-service-staging.skmtc.workers.dev/v1/apis/freeplay/freeplay-api/revisions/69c553220183/schema)