---
title: "Run Pipeline Handler"
method: POST
path: "/api/pipelines/{rule_id}/run"
tags: ["runtime_mutations", "pipelines"]
---

# Run Pipeline Handler

`POST /api/pipelines/{rule_id}/run`

## Path parameters

- `rule_id` string, required

## Response `200`

Successful Response

- RunResponse
  - `chat_session_id` string, required
  - `ordinal` integer, required

## Other responses

- `422` — Validation Error

## Changes

- **2026-09-18** `abf76937a751` — 2 info
  - added the optional property `detail/items/ctx` to the response with the `422` status
  - added the optional property `detail/items/input` to the response with the `422` status
- **2026-09-15** `21910d3ae5d8` — 1 info
  - endpoint added

[Change history](https://skmtc.dev/quadrillion/apis/quadrillion-cloud-api/changes/api/pipelines/:rule_id/run/post.md)

---

[API](https://skmtc.dev/quadrillion/apis/quadrillion-cloud-api.md) · [All operations](https://skmtc.dev/quadrillion/apis/quadrillion-cloud-api/llms.txt) · [OpenAPI document](https://skmtc.dev/quadrillion/apis/quadrillion-cloud-api/revisions/d61e2ec5a271?raw)