We'd like to introduce the #Fedify project family—a set of related tools that make building #ActivityPub applications more accessible:
### [Fedify] :fedify:
[Fedify] (@npub1tlfg...wz08) is a #TypeScript library for building federated server applications powered by ActivityPub and other #fediverse standards. It provides [type-safe objects for Activity Vocabulary][1], WebFinger client/server, HTTP Signatures, and more—eliminating boilerplate code so you can focus on your application logic.
[Fedify]: 
[1]:
### [Hollo] :hollo:
[Hollo] (@npub1mz3d...tpw7) is a single-user microblogging server powered by Fedify. While designed for individual users, it's fully federated through ActivityPub, allowing interaction with users across the fediverse. #Hollo implements Mastodon-compatible APIs, making it [compatible with most Mastodon clients][2] without needing its own web interface.
Hollo also serves as our testing ground for bleeding-edge Fedify features before they're officially released.
[Hollo]:
[2]:
### [BotKit] :botkit:
[BotKit] (@npub1sqlc...0z0c) is our newest family member—a framework specifically designed for creating ActivityPub bots. Unlike traditional Mastodon bots, #BotKit creates standalone ActivityPub servers that aren't constrained by platform-specific limitations (like character counts).
BotKit's API is intentionally simple—you can create a complete bot in a single TypeScript file!
[BotKit]: 
---
All three projects are open source and hosted under the [@fedify-dev] GitHub organization. While they serve different purposes, they share common goals: making ActivityPub development more accessible and expanding the fediverse ecosystem.
If you're interested in trying any of these projects or contributing to their development, check out:
- Fedify: <https://fedify.dev/>
- Hollo: <https://docs.hollo.social/>
- BotKit: <https://botkit.fedify.dev/>
#fedidev
[@fedify-dev]: 
Fedify
Fedify is a TypeScript library for building federated server apps powered by ActivityPub and other standards, so-called fediverse.
Vocabulary | Fedify
The Activity Vocabulary is a collection of type-safe objects that represent the Activity Vocabulary and the vendor-specific extensions. This secti...
Hollo
Welcome to Hollo
Hollo is a federated microblogging software for single-users.
Hollo
Tested clients
Hollo is a headless microblogging software that implements the Mastodon API. This means that you can use any Mastodon-compatible client to interac...
BotKit by Fedify
A framework for creating your ActivityPub bots
GitHub
Fedify
A collection of development tools for fediverse. Fedify has 19 repositories available. Follow their code on GitHub.