With BYOK Encryption, Spec Hub, and types in collections, Postman continues to redefine how teams build and scale APIs—bringing security, speed, and structure together in one unified platform.

About Postman Postman is the world’s leading API platform, used by more than 20 million developers and 500,000 organizations for building and using APIs.

It then allows users to use Postman Flows, the company’s visual development environment, to build these agents and have them interact with APIs. Postman LLM evaluation.