API Client
Send requests, inspect responses, and debug any API in seconds.
Trusted by teams at
Explore, test, and debug APIs without writing code
Every protocol in one tool
Create and execute any HTTP, GraphQL, gRPC, WebSocket, or MQTT queries from a single interface so your team stops juggling separate clients.
Authentication made simple
Configure any auth method from a dropdown without manually crafting headers, tokens, or refresh flows.
Scriptable workflows
Chain requests, validate responses, and automate multi-step scenarios with JavaScript that runs before and after every request.
Debug any API using prompts
Postman AI reads your request, inspects the response, writes test assertions, and suggests fixes so you spend less time diagnosing and more time building.
Everything you need for APIs can be found in the Postman API Platform. It has accelerated so many processes. Customers can onboard and begin using APIs in under three minutes."Gaël Imperial, Product Manager, Amadeus for Developers
RESOURCES
Go deeper on Postman's API Client
Learn more about API Client
Chat with a Postman expert to learn how Postman makes it easy for teams to collaborate, stay organized, and build secure, reliable APIs faster.
