Keycloak allows you to obtain an access token dedicated to some Client Application (not to any user). See Client Credentials Grant from OAuth 2.0 spec. To use it you must have registered a valid confidential Client and you need to check the switch Service Accounts Enabled in Keycloak admin console for this client. In tab Service Account Roles you can configure the roles available to the service account retrieved on behalf of this client. Don't forget that you need those roles to be available in Scopes of this client as well (unless you have Full Scope Allowed on). As in normal login, roles from access token are intersection of scopes and the service account roles. The REST URL to invoke on is /{keycloak-root}/realms/{realm-name}/protocol/openid-connect/token. Invoking on this URL is a POST request and requires you to post the client credentials. By default, client credentials are represented by clientId and clientSecret of the client in Authorization: Basic header, but you can also authenticate client with signed JWT assertion or any other custom mechanism for client authentication. See Client Authentication section for more details. You also need to use parameter grant_type=client_credentials as per OAuth2 specification. For example the POST invocation to retrieve service account can look like this: The response would be this standard JSON document from the OAuth 2.0 specification. The retrieved access token can be refreshed or logged out by out-of-bound request. See the example application service-account from the main Keycloak demo example.