Fedify is a Deno/TypeScript library for building federated server apps powered by ActivityPub and other standards, so-called fediverse.¹ 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.

Currently, Fedify is moving fast and the API is not stable yet. We do not recommend using it in production yet, so please use it if you would like to experiment with it and help us improve it.

The rough roadmap is to implement the following features out of the box:

• Type-safe objects for Activity Vocabulary (including some vendor-specific extensions)
• WebFinger client and server
• HTTP Signatures
• Middlewares for handling webhooks
• ActivityPub client
• NodeInfo protocol
• Special touch for interoperability with Mastodon and few other popular fediverse software

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

• Manual (Unstable)
• API reference
• Examples

As a prerequisite, you need to have Deno 1.41.0 or later installed on your system. Then you can install Fedify via the following command:

deno add @fedify/fedify

import { Federation } from "@fedify/fedify";

Or you can directly import it in your code using jsr: specifier:

import { Federation } from "jsr:@fedify/fedify";