YMFE/yapi

Health v2 · maintenance only

Adoption not part of the score

27723 stars · 4823 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-29, confidence not recorded

YApi is a self-hostable, visual API management platform for defining, documenting, mocking, and testing HTTP interfaces across developers, product managers, and QA. It supports Json5/Mockjs-based response schemas, a Postman-like debugger, automated response-assertion tests, and imports from Postman, HAR, and Swagger.

Use cases

• manage and document rest apis for frontend and backend teams
• mock api responses before the backend is implemented
• run automated api tests with response assertions
• import existing swagger or postman collections
• self-host api docs on an intranet for security

When to choose

• you need a self-hosted, visual API documentation and mock server
• your team wants combined API docs, debugging, and automated testing in one tool
• you want to import Swagger/Postman/HAR definitions

When to avoid

• you need a lightweight code-only spec tool like OpenAPI without a server
• you require actively maintained software with recent security patches
• you only need simple client-side HTTP debugging

Facets

application · maturity maintenance

api-framework mock-api testing documentation api-documentation apis developer-tools web-development testing documentation self-hosted api-management mock-server swagger-import postman-alternative api-testing self-hosted nodejs web-server docker

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