Mock Servers

Ensure your API delivers the right behavior when it hits production.

Postman Mock Servers interface showing a mock server configured with API response examples

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Simulate any API response exactly the way you need it

One-click mock creation

Get started fast by creating a mock from a collection, a spec, or your request history.

Smart response matching

Postman matches incoming requests to your saved examples by URL, method, body, and headers.

Public or private access

Keep mocks locked down with API key auth or make them public for any client or CI pipeline to hit directly.

Create mock servers with a single prompt

Use Postman AI to read your spec and create realistic response examples for every endpoint, including edge cases and error states.

Postman interface showing a mock server being created from a single AI prompt
Ask Postman AI

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Mock servers removed development dependencies. Postman allows API development, testing and releases to be run in parallel. There's no waiting for API implementation to be completed."
Eduardo Iriarte-Mendez, Senior Software Engineer, Flix

Learn more about mock servers

Chat with a Postman expert to learn how mock servers can help your organization accelerate software development and simulate real-world API behavior without having to build the backend.

Screenshot of a Postman demo video about mock servers