{"issuer":"https://mcp.heroku.com","authorization_endpoint":"https://mcp.heroku.com/auth","token_endpoint":"https://mcp.heroku.com/token","token_introspection_endpoint":"https://mcp.heroku.com/token/introspection","userinfo_endpoint":"https://mcp.heroku.com/me","jwks_uri":"https://mcp.heroku.com/jwks","registration_endpoint":"https://mcp.heroku.com/reg","scopes_supported":["openid","offline_access"],"response_types_supported":["code","code token"],"code_challenge_methods_supported":["S256"],"grant_types_supported":["authorization_code","refresh_token","urn:ietf:params:oauth:grant-type:device_code"]}