Mitra

Mitra is a self-hosted, federated microblogging platform built on ActivityPub for publishing and following posts across the Fediverse. It aims to be lightweight while still offering modern social features and compatibility with common Mastodon-style clients.

Key Features

• ActivityPub federation with interoperability across many Fediverse services
• Mastodon-compatible REST API (with some additional Mitra-specific endpoints)
• Rich posting features including quote posts, reactions, polls, custom emojis, and Markdown-style formatting
• High default character limit (5000)
• Account migration support, including detaching identity from a specific server
• Optional content subscriptions for private posts with monthly payments (supports Monero)
• Federation support over Tor and/or I2P
• Small memory footprint target and low system requirements for single-user/small instances

Use Cases

• Running a personal or community microblogging instance that federates with the wider Fediverse
• Hosting a lightweight alternative with Mastodon-client compatibility for web, mobile, and CLI apps
• Offering subscriber-only posts with privacy-focused payments

Limitations and Considerations

• Client-facing APIs beyond the Mastodon-like endpoints may change, and some APIs are explicitly noted as unstable
• IPFS integration is experimental and not actively maintained

Mitra is well-suited for operators who want a compact ActivityPub server with strong interoperability, modern posting features, and optional monetization. Its focus on lightweight operation and federation-friendly capabilities makes it a flexible choice for small to mid-sized deployments.