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Fedify

@fedify@hackers.pub

Fedify is a TypeScript library for building federated server apps powered by ActivityPub and other standards, so-called fediverse. It aims to eliminate the complexity and redundant boilerplate code when building a federated server app, so that you can focus on your business logic and user experience.

8 following · 930 followers
洪MInvited by 洪 民憙 (Hong Minhee)
Joined July 2026
FE
@fedify@hackers.pub
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Fedify keeps growing a family of sibling projects, each one solving a different piece of what it takes to build on ActivityPub.

Hollo is a single-user microblogging server built on Fedify. It has a Mastodon-compatible API, CommonMark support, and quotes in both Mastodon and Misskey style.

BotKit is a framework for building standalone ActivityPub bots, no Mastodon or Misskey account required behind it. A complete bot fits in a single TypeScript file.

Two more are still incubating. DrFed is a web-based platform for inspecting ActivityPub objects and activities and tracing where federation breaks down. Feder is a lightweight ActivityPub server framework in Rust, a sibling to Fedify for those working outside the TypeScript ecosystem.

All of them live under the @fedify-dev organization on GitHub.