Creating Mock Servers with Postman

What Is a Mock Server?

A mock server returns example responses that match a collection's saved examples, allowing frontend or client teams to build and test against an API before the real backend exists.

Creating a Mock Server

From a collection, choose "Mock Collection," give the mock server a name, and Postman generates a unique URL that serves saved example responses for each request.

How Requests Are Matched

Match CriteriaDescription
URL pathMatches the request path to a saved example
HTTP methodMatches GET, POST, etc.
Headers (optional)Can be used to match specific example variants

Benefits of Mocking

Mock servers let teams work in parallel, since frontend developers don't need to wait for the backend to be fully built to start integration work.

Mock servers are one way to simulate an API - let's look more closely at simulating responses for testing and prototyping.

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