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Open Source API Clients using GitHub

A curated collection of the best open source client applications for interacting with and testing APIs. using GitHub.

Yaak

Fast, secure, offline API client with Git integration

  • Stars

    19,355

  • Last commit

    11 hours ago

  • License

    MIT
A modern API client offering local-only data storage, Git integration, plugin extensibility, and multi-protocol support for developers.

Open Source Alternative to:

Postman

Voiden

Build APIs like code with Git-native workspace

  • Stars

    Stars growing over the last 30 days1,883

  • Last commit

    2 days ago

  • License

    Apache-2.0
Offline-first API workspace that unifies specs, docs, tests, and mocks in programmable Markdown blocks. Version control everything in plain text files.

Open Source Alternative to:

Postman
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