Create a Postman mock server from a mock or a collection

A mock server is a hosted, always-available stand-in for an API, deployed to the Postman Cloud at a stable URL. Once deployed, anyone with access can send requests to it at any time, so your teammates, your tests, and your CI pipelines can develop against it without a real backend.

You can create a mock server two ways:

• From a mock — Deploy your code-based mock so its JavaScript request handlers run in the Postman Cloud. Private by default, with per-session state.
• From a collection — Serve the saved examples in a collection, matched to each incoming request. Create one from an existing collection or from your request history.

To serve several mocks behind one address, deploy a simulation, which hosts a group of mocks together as a single mock server.

To view your mock servers, click the Services tab in the sidebar, then expand Mock Servers.

Create a mock server from a mock

Deploy a code mock so its request handlers run in the Postman Cloud, always available at a hosted URL. The server is private by default, keeps per-session state, and can redeploy automatically when the mock changes.

Learn more at Create a mock server from a mock.

Create a mock server from a collection

Create a mock server from the saved examples in a collection. When you send a request, Postman uses a matching algorithm to return the closest example, and can generate dynamic responses with variables and templates.

Learn more at Create a mock server from a collection.