We have open-sourced Voiden.

Most API tools are built like platforms. They are heavy because they optimize for accounts, sync, and abstraction - not for simple, local API work.

Voiden treats API tooling as files.

It’s an offline-first, Git-native API tool built on Markdown, where specs, tests, and docs live together as executable Markdown in your repo. Git is the source of truth.

No cloud. No syncing. No accounts. No telemetry.Just Markdown, Git, hotkeys, and your damn specs.

Voiden is extensible via plugins (including gRPC and WSS).

Repo: https://github.com/VoidenHQ/voiden

Download Voiden here : https://voiden.md/download

We'd love feedback from folks tired of overcomplicated and bloated API tooling !