---
title: "Slack App OAuth callback"
method: GET
path: "/slack/app/install/callback"
tags: ["Slack"]
---

# Slack App OAuth callback

`GET /slack/app/install/callback`

## Request

- Base URL: `https://api.apphandoff.com/api`
- URL: `https://api.apphandoff.com/api/slack/app/install/callback`
- Auth: none required

Handles the redirect after a workspace admin approves the Slack app. Verifies the single-use state, exchanges the code, and redirects to the portal project settings tab.

## Query parameters

- `code` string
- `state` string
- `error` string

## Other responses

- `302`: Redirect to the portal project settings tab

---

[API](https://skmtc.dev/apphandoff/apis/apphandoff-api.md) · [All operations](https://skmtc.dev/apphandoff/apis/apphandoff-api/llms.txt) · [OpenAPI document](https://skmtc.dev/apphandoff/apis/apphandoff-api/revisions/9f138fe46d56?raw)