---
title: "Enter dev mode (switch to a branch)"
method: POST
path: "/build/api/v1/deployments/{deploymentId}/dev-mode"
tags: ["Data Model"]
---

# Enter dev mode (switch to a branch)

`POST /build/api/v1/deployments/{deploymentId}/dev-mode`

## Path parameters

- `deploymentId` integer, required

## Request body

- StartDevModeRequest
  - `branchName` string, nullable

## Response `200`

- DevBranchResponse
  - `active` boolean, required
  - `branchName` string, nullable
  - `parentBranch` string, nullable

## Changes

> 9 revisions in range; 2 could not be searched.

- **2026-07-31** `a0c6b1d2ac96` — 1 info
  - endpoint added

[Change history](https://skmtc.dev/cube-js/apis/cube-cloud-rest-api/changes/build/api/v1/deployments/:deploymentId/dev-mode/post.md)

---

[API](https://skmtc.dev/cube-js/apis/cube-cloud-rest-api.md) · [All operations](https://skmtc.dev/cube-js/apis/cube-cloud-rest-api/llms.txt) · [OpenAPI document](https://skmtc-service-production.skmtc.workers.dev/v1/apis/cube-js/cube-cloud-rest-api/revisions/97e151460143/schema)