> ## Documentation Index
> Fetch the complete documentation index at: https://docs.ulm.m1amdocs.com/llms.txt
> Use this file to discover all available pages before exploring further.

# UserInfo Endpoint

The `/userinfo` endpoint is a standard API specification that the issuer implements and makes available to RPs, as an alternative method for those RPs to obtain updated subject claim data (that is, updated user information). An RP can use its OAuth access token with a special `HTTP GET` request to the issuer's `/userinfo` endpoint. The response includes the latest claim values authorized for the RP according to the scopes in the access token. It can also include claim data that may have been excluded from the ID token due to size concerns, like an embedded profile image.

The `/userinfo` endpoint's response body is a JSON object where each claim is a field/vale pair:

```
**RESPONSE - body**
{ 
  "email_verified": true, 
  "name": "Primary User Display Name Here", 
  "email": "jsmith@mailinator.com", 
  "sub": "4fa6ffe1-96c0-4780-b3db-d530cdc52a8b" 
}
```

The RP is free to call the `/userinfo` endpoint whenever it needs the latest copy of a subject's claim data. However, as a best practice, we recommend you rely on the ID token, and to refresh it as needed.

**Parent topic:**[OAuth 2.0 and OpenID Connect](../topics/oAuth2andOpenIDConnect)


This documentation is built and hosted on [Mintlify](https://mintlify.com), a developer documentation platform.