Fedify: an ActivityPub server framework

Fedify is a TypeScript library for building federated server apps powered by ActivityPub and other standards, so-called fediverse.¹ It aims to eliminate the complexity and boilerplate code when building a federated server app, so that you can focus on your business logic and user experience.

Currently, Fedify provides the following features out of the box:

• Type-safe objects for Activity Vocabulary (including some vendor-specific extensions)
• WebFinger client and server
• HTTP Signatures & HTTP Message Signatures
• Object Integrity Proofs & Linked Data Signatures
• Middlewares for handling webhooks
• NodeInfo protocol
• Enhanced interoperability with Mastodon and other popular fediverse software
• Integration with various web frameworks
• CLI toolchain for testing and debugging

If you want to know more about the project, please take a look at the following resources:

• Installation
• Tutorials: Learning the basics & Creating a microblog
• Migrating from other libraries
• API reference
• Examples

If you have any questions, suggestions, or feedback, please feel free to join our Matrix chat space or GitHub Discussions. Or tag #Fedify in the fediverse!

Packages

Fedify is a monorepo that contains several packages, each of which provides different features. The main package is @fedify/fedify, which provides the core functionality of the framework. Other packages provide integrations with various web frameworks, database drivers, and other features. Here is the list of packages:

Package	JSR	npm	Description
@fedify/fedify	JSR	npm	The core framework of Fedify
@fedify/cli	JSR	npm	CLI toolchain for testing and debugging
@fedify/create		npm	Create a new Fedify project
@fedify/amqp	JSR	npm	AMQP/RabbitMQ driver
@fedify/astro	JSR	npm	Astro integration
@fedify/cfworkers	JSR	npm	Cloudflare Workers integration
@fedify/debugger	JSR	npm	Embedded ActivityPub debug dashboard
@fedify/denokv	JSR		Deno KV integration
@fedify/elysia		npm	Elysia integration
@fedify/express	JSR	npm	Express integration
@fedify/fastify	JSR	npm	Fastify integration
@fedify/fresh	JSR		Fresh integration
@fedify/h3	JSR	npm	H3 integration
@fedify/hono	JSR	npm	Hono integration
@fedify/init	JSR	npm	Project initializer for Fedify
@fedify/koa	JSR	npm	Koa integration
@fedify/lint	JSR	npm	Linting utilities
@fedify/nestjs		npm	NestJS integration
@fedify/next		npm	Next.js integration
@fedify/nuxt	JSR	npm	Nuxt integration
@fedify/mysql	JSR	npm	MySQL/MariaDB driver
@fedify/postgres	JSR	npm	PostgreSQL driver
@fedify/redis	JSR	npm	Redis driver
@fedify/relay	JSR	npm	ActivityPub relay support
@fedify/solidstart	JSR	npm	SolidStart integration
@fedify/sqlite	JSR	npm	SQLite driver
@fedify/sveltekit	JSR	npm	SvelteKit integration
@fedify/testing	JSR	npm	Testing utilities
@fedify/vocab	JSR	npm	Activity Vocabulary library
@fedify/vocab-runtime	JSR	npm	Runtime library for code-generated vocab
@fedify/vocab-tools	JSR	npm	Code generation tools for Activity Vocab
@fedify/webfinger	JSR	npm	WebFinger client library for ActivityPub

Sponsors

This project exists thanks to all the people who contribute, donate, and sponsor it. We are grateful for their support. We would like to thank the following financial contributors:²

Corporate sponsors

• Ghost

Supporters

• Daniel Supernault
• tkgka
• Blaine
• Erick González Aguilar

Backers

Robin Riley, yamanoku, Encyclia, taye, okin, Andy Piper, box464, Evan Prodromou, Rafael Goulart, malte

One-time donations

Robin Riley, Markus P, Nils Bergmann, Rameez

Become a sponsor

We welcome financial contributions to help us maintain and improve this project. If you would like to become a financial contributor, please visit our Open Collective.

Footnotes

1. You may already know some of the networks in the fediverse, such as Mastodon, Lemmy, Pixelfed, PeerTube, and so on. ↩

2. Those lists are automatically updated every hour. ↩