---
title: "Start Run"
method: POST
path: "/v1/control/start-run"
tags: ["Control"]
---

# Start Run

`POST /v1/control/start-run`

## Headers

- `x-flwr-client` string, nullable

## Response `200`

Successful Response

- unknown

## Other responses

- `422` — Validation Error

## Changes

- **2026-09-02** `58e8351486b3` — 1 warning, 1 info
  - deleted the `header` request parameter `x-flwr-run-source`
  - added the new optional `header` request parameter `x-flwr-client`

[Change history](https://skmtc.dev/flower/apis/superlink-api/changes/v1/control/start-run/post.md)

---

[API](https://skmtc.dev/flower/apis/superlink-api.md) · [All operations](https://skmtc.dev/flower/apis/superlink-api/llms.txt) · [OpenAPI document](https://skmtc-service-production.skmtc.workers.dev/v1/apis/flower/superlink-api/revisions/58e8351486b3/schema)