Stoplight

Stoplight Prism

Prism is an open-source HTTP mock and proxy server that turns any OpenAPI v2/v3 or Postman Collection file into a realistic API server with mocking, transformations, and validations. Enables frontend and backend teams to develop in parallel using API descriptions. Can be used as a local CLI tool or via hosted Stoplight mock servers. Supports dynamic example generation, request/response validation, and content negotiation. The prism repository on GitHub has approximately 4,943 stars and is one of Stoplight's flagship open-source projects.

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API entry from apis.yml

aid: stoplight:prism
name: Stoplight Prism
description: Prism is an open-source HTTP mock and proxy server that turns any OpenAPI v2/v3 or Postman
  Collection file into a realistic API server with mocking, transformations, and validations. Enables
  frontend and backend teams to develop in parallel using API descriptions. Can be used as a local CLI
  tool or via hosted Stoplight mock servers. Supports dynamic example generation, request/response validation,
  and content negotiation. The prism repository on GitHub has approximately 4,943 stars and is one of
  Stoplight's flagship open-source projects.
humanURL: https://stoplight.io/open-source/prism
tags:
- API Testing
- Mock Servers
- Open-Source
- OpenAPI
- Postman
- Proxy
- Validation
tags_raw:
- API Testing
- Mock Servers
- Open Source
- OpenAPI
- Postman
- Proxy
- Validation
properties:
- type: Documentation
  url: https://docs.stoplight.io/docs/prism/674b27b261c3c-prism-overview
- type: GitHubRepository
  url: https://github.com/stoplightio/prism
- type: NPM
  url: https://www.npmjs.com/package/@stoplight/prism-cli