---
title: "Cancel a running pipeline"
method: POST
path: "/pipeline/{session_id}/cancel"
tags: ["pipeline"]
---

# Cancel a running pipeline

`POST /pipeline/{session_id}/cancel`

## Path parameters

- `session_id` string, required

## Response `200`

Cancellation acknowledged

- object
  - `session_id` string
  - `status` string
  - `message` string

## Other responses

- `400` — Cannot cancel (not running)
- `404` — Session not found

---

[API](https://skmtc.dev/nvidia/apis/material-agent-service.md) · [All operations](https://skmtc.dev/nvidia/apis/material-agent-service/llms.txt) · [OpenAPI document](https://skmtc-service-production.skmtc.workers.dev/v1/apis/nvidia/material-agent-service/revisions/4fde0c1362b3/schema)