# Token validation Validate an authorization grant code delivered to your app to obtain tokens, or validate an existing refresh token. ## Discussion The validation server returns a [`TokenResponse`](/documentation/SigninwithAppleRESTAPI/TokenResponse) object in the response body of a successful validation request. Use this endpoint to either authorize a user by validating the authorization code received by your app, or by validating an existing refresh token to verify a user session or obtain access tokens. ### Validate the authorization grant code When you send an authorization request to the validation server, include the following form data parameters: - `client_id` - `client_secret` - `code` - `grant_type` - `redirect_uri` > Note: > When authorizing a user with your app, include the `redirect_uri` parameter only if the application provided a `redirect_uri` in the initial authorization request. The following is an example authorization validation request URL via `cURL`: ```console curl -v POST "https://appleid.apple.com/auth/token" \ -H 'content-type: application/x-www-form-urlencoded' \ -d 'client_id=CLIENT_ID' \ -d 'client_secret=CLIENT_SECRET' \ -d 'code=CODE' \ -d 'grant_type=authorization_code' \ -d 'redirect_uri=REDIRECT_URI' ``` After the server validates the authorization code, the endpoint returns the identity token, an access token, and a refresh token. The following is an example authorization validation response: ```json { "access_token": "adg61...67Or9", "token_type": "Bearer", "expires_in": 3600, "refresh_token": "rca7...lABoQ", "id_token": "eyJra...96sZg" } ``` Use the refresh token to verify the user session from the server and obtain access tokens. ### Validate an existing refresh token When performing a validation request, you must include the following form data parameters: - `client_id` - `client_secret` - `grant_type` - `refresh_token` The following is an example validation request URL using `cURL`: ```console curl -v POST "https://appleid.apple.com/auth/token" \ -H 'content-type: application/x-www-form-urlencoded' \ -d 'client_id=CLIENT_ID' \ -d 'client_secret=CLIENT_SECRET' \ -d 'grant_type=refresh_token' \ -d 'refresh_token=REFRESH_TOKEN' ``` After the server validates the refresh token, the endpoint returns the identity token and an access token. The following is an example refresh token validation response: ```json { "access_token": "beg510...67Or9", "token_type": "Bearer", "expires_in": 3600, "id_token": "eyJra...96sZg" } ``` --- Copyright © 2026 Apple Inc. All rights reserved. | [Terms of Use](https://www.apple.com/legal/internet-services/terms/site.html) | [Privacy Policy](https://www.apple.com/privacy/privacy-policy)