Eri Asiru developed an authentication upgrade for the port-labs/ocean ServiceNow integration, focusing on security and reliability. Using Python, Eri introduced OAuth 2.0 Client Credentials support with token refresh, replacing hardcoded credentials with a pluggable authenticator pattern. This approach decoupled authentication logic from the client, reduced credential exposure, and improved resilience against token expiration. Eri implemented token caching with an async lock to prevent race conditions and added robust credential validation to ensure fail-fast behavior. The work updated configuration and documentation, preserved backward compatibility, and established a scalable foundation for future authentication strategies in backend API integrations.