Prism – Turn any OpenAPI file into an API server with mocking, transformations, validations, and more.

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Prism is an open-source HTTP mock server that can mimic your API’s behavior as if you already built it. Mock HTTP servers are generated from your OpenAPI v2/v3 documents.

Installation per NPM/Yarn

# NPM
npm install -g @stoplight/prism-cli

# Yarn
yarn global add @stoplight/prism-cli

Once installed, serve your OpenAPI spec as follows:

prism mock petstore.yml

Prism →
Prism (GitHub) →

💡 If you’re using Postman, you can use their built-in Mock Server option

Published by Bramus!

Bramus is a frontend web developer from Belgium, working as a Chrome Developer Relations Engineer at Google. From the moment he discovered view-source at the age of 14 (way back in 1997), he fell in love with the web and has been tinkering with it ever since (more …)

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