generated: '2026-07-19' method: searched source: https://developer.fourth.com/en-gb/docs/authenticating-oauth docs: https://developer.fourth.com/en-gb/docs/authenticating-oauth schemes: - name: OAuth2 flows: - flow: clientCredentials tokenUrl: '[ROOT]/oauth/connect/token' scopes: - scope: NotificationService description: Access to the Fourth Notifications API. flows: [clientCredentials] api: Notifications API notes: >- Fourth documents OAuth scopes per-API on each reference page under the Authentication heading; only NotificationService is given as a published example in the OAuth guide. Additional per-API scopes exist on the individual reference pages but production hosts/specs are not publicly disclosed.