OpenAM Administration Guide
13.1.1. OpenAM as OAuth 2.0 Authorization Server

In addition to the standard authorization and token endpoints described in RFC 6749, OpenAM also exposes a token information endpoint for resource servers to get information about access tokens so they can determine how to respond to requests for protected resources. OpenAM as authorization server exposes the following endpoints for clients and resource servers.

/oauth2/authorize

Authorization endpoint defined in RFC 6749, used to obtain an authorization grant from the resource owner

Example: https://openam.example.com:8443/openam/oauth2/authorize

/oauth2/access_token

Token endpoint defined in RFC 6749, used to obtain an access token from the authorization server

Example: https://openam.example.com:8443/openam/oauth2/access_token

/oauth2/tokeninfo

Endpoint not defined in RFC 6749, used to validate tokens, and to retrieve information such as scopes

Given an access token, a resource server can perform an HTTP GET on /oauth2/tokeninfo?access_token=token-id to retrieve a JSON object indicating token_type, expires_in, scope, and the access_token ID.

Example: https://openam.example.com:8443/openam/oauth2/tokeninfo