During March 2026, v0rtex20k enhanced the BerriAI/litellm repository by extending OAuth2 machine-to-machine authentication to several info routes, including endpoints such as /key/info and /user/info. They refactored the route checking logic in Python to ensure consistent authentication enforcement across both info and LLM API routes, addressing potential gaps in access control. Their work included developing unit and integration tests to verify correct identification and authorization for these endpoints. By focusing on backend development and authentication, v0rtex20k improved the security posture of the API, enabling safer expansion of info routes and reducing the risk of unauthorized access.