Relay Implementations

This is a list of all known implementations of the Nostr relay spec. You only need this if you're planning on running a relay yourself.

Relays

Relays are (so far) application agnostic. You can run your own or use any or all of the public instances.

Go

• Relayer Basic: A simple reference relay backed by Postgres
• Expensive Relay: A reference relay that requires payment for registration

C#

• NNostr: A C# relay

Rust

• nostr-rs-relay: A minimalistic relay written in Rust that saves data on SQLite
• søstr: A private nostr relay written in rust, saves all notes from one pubkey and publish them to anyone that requests them

Node.js

• nodestr: A Node.js implementation

Typescript

• nostream: A nostr relay written in Typescript backed by PostgreSQL (renamed from nostr-ts-relay)
• Minds Nostr Relay: A relay for Minds, an open-source social network
  • Minds Engine - Nostr: Relevant Minds API code for reading/writing Minds posts using Nostr

Clojure

• me.untethr.nostr-relay: A relay written in Clojure

Python

• nostrypy: Relay, client, and other tooling in python
• nostr_relay: A Nostr relay written in python, backed by SQLite

Kotlin

• NostrPostr Relay: A Kotlin Relay supporting both SQLite and Postgresql
• knostr: A nostr relay implemented in Kotlin with support for Postgres and metrics(micrometer)