---
title: "Start flow run"
method: POST
path: "/start_pipeline"
tags: ["Execution"]
---

# Start flow run

`POST /start_pipeline`

This endpoint is used to trigger a flow run via API

## Request body

- object
  - `user_id` string, required — The id for the user initiating the flow.
  - `project_id` string — (Optional) The id of the project within which the flow is executed.
  - `saved_item_id` string, required — The id for the saved flow.

## Response `200`

Flow started successfully

- object
  - `run_id` string
  - `saved_item_id` string
  - `workbook_id` string
  - `url` string

## Other responses

- `400` — Bad request (missing or conflicting parameters)
- `401` — Unauthorized (missing or invalid API key)
- `403` — Forbidden (API key does not match)
- `500` — Internal server error

---

[API](https://skmtc.dev/gumloop/apis/public-api.md) · [All operations](https://skmtc.dev/gumloop/apis/public-api/llms.txt) · [OpenAPI document](https://skmtc-service-production.skmtc.workers.dev/v1/apis/gumloop/public-api/revisions/115f2d6ce387/schema)