---
title: "Start Install"
method: POST
path: "/api/github/app/install"
tags: ["github-app"]
---

# Start Install

`POST /api/github/app/install`

Build the GitHub URL the browser should open.

## Request body

- InstallRequest
  - `mode` 'install' | 'authorize'

## Response `200`

Successful Response

- QuadrillionCloudApiRoutersGithubAppInstallResponse
  - `oauth_url` string, required

## Other responses

- `422` — Validation Error

## Changes

- **2026-09-18** `abf76937a751` — 2 info
  - added the optional property `detail/items/ctx` to the response with the `422` status
  - added the optional property `detail/items/input` to the response with the `422` status
- **2026-09-11** `678c0b580d43` — 1 info
  - endpoint added

[Change history](https://skmtc.dev/quadrillion/apis/quadrillion-cloud-api/changes/api/github/app/install/post.md)

---

[API](https://skmtc.dev/quadrillion/apis/quadrillion-cloud-api.md) · [All operations](https://skmtc.dev/quadrillion/apis/quadrillion-cloud-api/llms.txt) · [OpenAPI document](https://skmtc.dev/quadrillion/apis/quadrillion-cloud-api/revisions/397ad3a1d858?raw)