Postman is a platform that lets developers discover, test, mock, and monitor APIs, helping teams move from development to production faster. It provides tools for API discovery, automated testing, mock servers, performance testing, and CI integration. What sets Postman apart is its Context Graph, which gives agents a structured map of APIs and relationships, improving accuracy and reducing token usage. The platform also offers secure proxying, passport logging, and admin‑controlled access to ensure safe and auditable API usage.