phantomapi-server is an open-source CLI tool that allows developers to instantly spin up mock API servers using OpenAPI/Swagger specs, JSON files, or Postman collections. It is designed for developers who need to test and develop against simulated APIs. The tool is MIT licensed and self-hosted.
In the Developer Tools space, phantomapi-server takes a focused approach. Quickly generating mock API servers for testing and development from API specifications. phantomapi-server is an open-source project aimed at developers needing mock APIs for testing. The project is open source (MIT). It runs on the command line, and it can be self-hosted.
It is developed by bhayanak, and it first shipped in 2026. Development happens publicly on GitHub with 3 commits in the last 90 days. Among its 6 catalogued features are Mock API server, openAPI support, and swagger support.
Summary written by a language model from the project’s public pages.
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