---
title: "Check Oauth Link"
method: POST
path: "/api/auth/link/check"
---

# Check Oauth Link

`POST /api/auth/link/check`

## Request

- Base URL: `https://api.usecreed.com` (the document declares no server; this is the origin it was published from)
- URL: `https://api.usecreed.com/api/auth/link/check`
- Auth: none declared
- TypeScript: <https://skmtc.dev/usecreed/apis/creed-api/docs/api/auth/link/check/post.ts> (a function with typed inputs; its response is checked against the schema)

Whether signing in with this token would move the caller to another
account, and whether the caller has progress (tokens or a streak) that
would be left behind, so the app can warn first. Changes nothing.

## Request body

- LinkOAuthRequest
  - `identityToken` string, required
  - `userId` string, required
  - `provider` string

## Response `200`

Successful Response

- unknown

## Other responses

- `422`: Validation Error

## Changes

- **2026-10-28** `9a6e25b21a53`: 1 warning
  - removed the request property `movesPurchases`
- **2026-10-27** `66ebef6fbbdb`: 1 info
  - endpoint added

[Operation history](https://skmtc.dev/usecreed/apis/creed-api/changes/api/auth/link/check/post.md)

---

[API](https://skmtc.dev/usecreed/apis/creed-api.md) - [All operations](https://skmtc.dev/usecreed/apis/creed-api/llms.txt) - [OpenAPI document](https://skmtc.dev/usecreed/apis/creed-api/revisions/9a6e25b21a53?raw)