Developed secure chatbot API credential handling for the UCB-TallerDeDesarrollo/TDDLab repository, focusing on strengthening authorization flows and reducing authentication errors within chatbot interactions. Integrated the new credential management pattern directly into existing chatbot request logic, emphasizing secure defaults and robust error handling. Utilized JavaScript and TypeScript to ensure maintainability and seamless front end integration, while prioritizing traceability by linking changes to specific commits for auditability. The work enhanced the security posture of the chatbot system, improved user experience by reducing friction during authentication, and established a scalable foundation for future credential management without introducing new bugs during the development period.