---
title: "Restart an application"
method: POST
path: "/v2/apps/{appId}/restart"
tags: ["Lifecycle"]
---

# Restart an application

`POST /v2/apps/{appId}/restart`

Restarts an application — equivalent to stop+start, performed atomically.

Requires the workspace Manager, Maintainer, or Administrator role (or ownership) when called against a workspace-shared application. Rate limited to 1 restart per 3s per app and to 20 actions per 15s per user.

## Path parameters

- `appId` string, required

## Response `200`

Action dispatched. Payload reflects the underlying operation result.

- object
  - `status` 'success', required

## Other responses

- `401` — The Authorization header is missing, malformed, or the credentials are not valid.
- `403` — The workspace member does not have the required permission for this endpoint.
- `404` — The target application could not be found, or the caller is not a member of the workspace.
- `409` — The action was rejected (application already running/stopped, mid-deploy, etc).
- `429` — The endpoint enforces its own rate limit and the caller hit the cooldown.
- `500` — An unexpected error occurred while processing the request.

---

[API](https://skmtc.dev/squarecloud/apis/square-cloud-api.md) · [All operations](https://skmtc.dev/squarecloud/apis/square-cloud-api/llms.txt) · [OpenAPI document](https://skmtc-service-production.skmtc.workers.dev/v1/apis/squarecloud/square-cloud-api/revisions/54b7733a6b95/schema)