---
title: "Start SSO"
method: POST
path: "/auth/sso/start"
tags: ["Auth"]
---

# Start SSO

`POST /auth/sso/start`

Initiate a new Single Sign-On (SSO) session. Returns a session URL to be completed with SSO provider credentials.

## Request body

- SsoStartRequest
  - `redirect_to` string, nullable — URL to redirect to after SSO completion
  - `redirect_uri` string, nullable — OAuth redirect URI to use for the SSO provider callback

## Response `200`

Success

- SsoStartResponse
  - `authorization_url` string, required — URL to redirect user to for SSO authentication
  - `state` string, required — State parameter for CSRF protection
  - `redirect_uri` string, required — OAuth redirect URI used for the SSO provider callback

## Other responses

- `400` — Bad Request - The request was malformed or contained invalid data
- `429` — Too Many Requests - You are being rate limited
- `500` — Internal Server Error - An unexpected error occurred

---

[API](https://skmtc.dev/fluxer/apis/fluxer-api.md) · [All operations](https://skmtc.dev/fluxer/apis/fluxer-api/llms.txt) · [OpenAPI document](https://skmtc-service-production.skmtc.workers.dev/v1/apis/fluxer/fluxer-api/revisions/d9c706133cc5/schema)