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.

About Postman Postman is the world’s leading API platform, used by more than 17 million developers and 500,000 organizations worldwide for building and using APIs.

Postman, a five-year-old startup that is attempting to simplify development, tests and management of APIs through its platform, has raised $50 million in a new round to scale its business.