---
title: "Fork Project"
method: POST
path: "/api/sandbox/fork"
tags: ["Sandbox"]
---

# Fork Project

`POST /api/sandbox/fork`

## Request

- Base URL: `https://api.agentstack.tech` (the document declares no server; this is the origin it was published from)
- URL: `https://api.agentstack.tech/api/sandbox/fork`
- Auth: one of:
  - API key in header `X-API-Key`
  - HTTP bearer

Fork a production project into a new sandbox generation.

## Query parameters

- `project_id` integer, required

## Headers

- `Idempotency-Key` string

## Request body

- ForkRequest
  - `source_project_id` integer, required
  - `env_name` string, required
  - `env_type` string
  - `diff_only` boolean
  - `segment_id` string, nullable
  - `rollout_steps` object[], nullable

## Response `200`

Successful Response

- unknown

## Other responses

- `400`: Bad Request
- `401`: Unauthorized
- `403`: Forbidden
- `404`: Not Found
- `409`: Conflict
- `422`: Validation Error
- `429`: Too Many Requests
- `500`: Internal Server Error

---

[API](https://skmtc.dev/agentstack/apis/agentstack-core-api.md) · [All operations](https://skmtc.dev/agentstack/apis/agentstack-core-api/llms.txt) · [OpenAPI document](https://skmtc.dev/agentstack/apis/agentstack-core-api/revisions/8ecf3406e74a?raw)