The Awesome Nostr category Relays is part of the broader public project map. This page keeps the source links visible and adds Crays interpretation.
Category role
This category matters because it groups related Nostr projects around relays. It is useful for breadth: readers can see how many independent teams, tools and experiments orbit the protocol.
The Crays archive uses this as a discovery layer, not as a final judgment. Every link should be checked for activity, license, security posture and strategic relevance before becoming a product dependency.
- Captured links. 170
- Source. Awesome Nostr public README.
- Archive use. Breadth, discovery and future research backlog.
Links in this category
The cards below point to the original projects or resources. Descriptions are intentionally short because the source project should remain the authority.
Alienos! - A plugin-able and manageable (NIP-86) lightweight nostr stack (relay/blossom/nip-05) designed for self-hosting. Supporting tor hidden service and full running documentation.
stars! - A plugin-able and manageable (NIP-86) lightweight nostr stack (relay/blossom/nip-05) designed for self-hosting. Supporting tor hidden service and full running documentation.
Astro! - Elixir-based implementation built to be performant and highly distributed.
stars! - Elixir-based implementation built to be performant and highly distributed.
blastr! - A nostr cloudflare workers proxy relay that publishes to all known relays
stars! - A nostr cloudflare workers proxy relay that publishes to all known relays
Bostr! - Nostr bouncer relay aggregator proxy written in NodeJS
stars! - Nostr bouncer relay aggregator proxy written in NodeJS
Bostr2! - Nostr bouncer relay aggregator proxy written in Go
stars! - Nostr bouncer relay aggregator proxy written in Go
broadcastr! - Nostr relay that transmits events to other relays
stars! - Nostr relay that transmits events to other relays
Bucket! - in-memory-only nodejs relay for testing/hacking on. Stupid simple, <100 LOC.
stars! - in-memory-only nodejs relay for testing/hacking on. Stupid simple, <100 LOC.
cagliostr! - Faster Nostr relay in C++ backend by sqlite3.
stars! - Faster Nostr relay in C++ backend by sqlite3.
cfrelay! - A personal nostr relay base on cloudflare workers.
stars! - A personal nostr relay base on cloudflare workers.
Chorus! - Rust based personal or community relay.
stars! - Rust based personal or community relay.
Citrine! - Nostr relay for Android
stars! - Nostr relay for Android
DDSR! - Dezh DSRs (Domain specific relays) is a set of lightweight relays designed to do exactly one thing, better than general relays to enhance UX
stars! - Dezh DSRs (Domain specific relays) is a set of lightweight relays designed to do exactly one thing, better than general relays to enhance UX
ZapoliA Specialized Nostr Relay For AppStores.
210MaxiA nostr relay that only accepts 210 character events (NIP-B1).
Denostr! - Deno based, cloud native nostr implemention.
stars! - Deno based, cloud native nostr implemention.
Ephemerelay! - An in-memory Nostr relay that doesn't store data.
stars! - An in-memory Nostr relay that doesn't store data.
Fenrir-s! - a Nostr Relay written in Kotlin with PostgreSQL backend and GraalVM support.
stars! - a Nostr Relay written in Kotlin with PostgreSQL backend and GraalVM support.
gnost-relay! - nostr relay written in go backed by PostgreSQL database.
stars! - nostr relay written in go backed by PostgreSQL database.
grain! - A highly configurable, multipurpose relay written in Go, Storing Events in a MongoDB.
stars! - A highly configurable, multipurpose relay written in Go, Storing Events in a MongoDB.
HAVEN! - Four relays in one + Blossom Media Server for a modern, sovereign and personal Nostr experience.
stars! - Four relays in one + Blossom Media Server for a modern, sovereign and personal Nostr experience.
Immortal! - A relay designed for scale and high-load.
stars! - A relay designed for scale and high-load.
khatru! . a framework for making custom Nostr relays
stars! . a framework for making custom Nostr relays
knostr! - a nostr relay implemented in Kotlin with support for Postgres and metrics(micrometer).
stars! - a nostr relay implemented in Kotlin with support for Postgres and metrics(micrometer).
me.untethr.nostr-relay! - a relay written in Clojure.
stars! - a relay written in Clojure.
Minds Nostr Relaya relay for , an open-source social network
Mindsa relay for , an open-source social network
Minds Engine - Nostrrelevant Minds API code for reading/writing Minds posts using Nostr
monstrpython code for working with nostr
multiplextr! - A custom relay designed to save bandwidth for clients with multiplexer support.
stars! - A custom relay designed to save bandwidth for clients with multiplexer support.
n0str! - Nostr relay designed for maximum simplicity without sacrificing power
stars! - Nostr relay designed for maximum simplicity without sacrificing power
NerostrA Nostr expensive relay paid with Monero and written in Go.
netstr! - A general purpose Nostr relay written in C# with high test coverage, backed by Postgres DB.
stars! - A general purpose Nostr relay written in C# with high test coverage, backed by Postgres DB.
Nex! - A powerful and scalable Nostr relay written in Elixir with Postgres DB.
stars! - A powerful and scalable Nostr relay written in Elixir with Postgres DB.
NIP-29 Group Chat Relay! - NIP-29 Group Chat Relay based on fiatjaf's and .
stars! - NIP-29 Group Chat Relay based on fiatjaf's and .
Relay29! - NIP-29 Group Chat Relay based on fiatjaf's and .
Khatru! - NIP-29 Group Chat Relay based on fiatjaf's and .
wss://relay.groups.nip29.comLive instance
NNostr! - a C# relay.
stars! - a C# relay.
Nosflare! - a serverless Nostr relay purpose-built for and the store.
stars! - a serverless Nostr relay purpose-built for and the store.
Cloudflare Workers! - a serverless Nostr relay purpose-built for and the store.
Cloudflare KV! - a serverless Nostr relay purpose-built for and the store.
Nostpy! - An easy to deploy/audit Python relay for beginner relay operators.
stars! - An easy to deploy/audit Python relay for beginner relay operators.
Nostr client and relay! - C++ engine that allows building Nostr applications for command line, desktop or web.
stars! - C++ engine that allows building Nostr applications for command line, desktop or web.
nostrcheck-server! - A server with relay, File Hosting, Nostr Address, Lightning Redirects, NWC and WoT.
stars! - A server with relay, File Hosting, Nostr Address, Lightning Redirects, NWC and WoT.
nostr_relaya nostr relay written in Python, backed by SQLite
nostr-filter-relay! - A nostr relay docker image package which filter content based on content type (SFW/NSFW), user type, language, hate speech (toxic comment), sentiment, topic, and various rules.
stars! - A nostr relay docker image package which filter content based on content type (SFW/NSFW), user type, language, hate speech (toxic comment), sentiment, topic, and various rules.
nostr-relay-nestjs! - A Nostr relay with a clear architecture and high test coverage (PostgreSQL, MeiliSearch, NestJS)
stars! - A Nostr relay with a clear architecture and high test coverage (PostgreSQL, MeiliSearch, NestJS)
nostr-relay! - Nostr relay in Go based on relayer. Backend by sqlite3/PostgreSQL/mysql.
stars! - Nostr relay in Go based on relayer. Backend by sqlite3/PostgreSQL/mysql.
nostr-rs-relaya minimalistic relay written in Rust that saves data on SQLite
keychat-relay-ext! - Enable cashu ecash payments per message by grpc authorization server
stars! - Enable cashu ecash payments per message by grpc authorization server
nostream! - a nostr relay written in Typescript backed by PostgreSQL (renamed from nostr-ts-relay).
stars! - a nostr relay written in Typescript backed by PostgreSQL (renamed from nostr-ts-relay).
nostring! - A Nostr relay written in Deno.
stars! - A Nostr relay written in Deno.
NostrPostr Relaya Kotlin Relay supporting both SQLite and Postgresql.
Notra! - F# implementation backed by SQLite database.
stars! - F# implementation backed by SQLite database.
ORLYfast relay written in Go, forked from Relayer, using highly optimized message encoders, SIMD enabled hash and hex encoding, built in blossom server, a fully configurable policy based ACL, simple follows ACL for personal relays, and a collec
PyRelay! - a python implementation of a Nostr relay, using asyncio.
stars! - a python implementation of a Nostr relay, using asyncio.
QNostr! - A Nostr protocol implementation for clients as a Qt Module in C++
stars! - A Nostr protocol implementation for clients as a Qt Module in C++
Relayer Basica simple relay based on _relayer_ backed by Postgres
rely! - A golang framework for building super custom nostr relays you can rely on.
stars! - A golang framework for building super custom nostr relays you can rely on.
rnostr! - A high-performance and scalable nostr relay written in Rust.
stars! - A high-performance and scalable nostr relay written in Rust.
Servus! - A self-contained, single executable, CMS/blogging engine reminiscent of Jekyll which also acts as a personal Nostr relay for your blog posts. Written in Rust.
stars! - A self-contained, single executable, CMS/blogging engine reminiscent of Jekyll which also acts as a personal Nostr relay for your blog posts. Written in Rust.
Shugur! - High performance relay written in Go, uses CockroachDB.
stars! - High performance relay written in Go, uses CockroachDB.
søstr! - a private Nostr relay written in rust, saves all notes from one pubkey and publish them to anyone that requests them
stars! - a private Nostr relay written in rust, saves all notes from one pubkey and publish them to anyone that requests them
sovereign-stacka tool that helps you deploy nostr relays and create self-hosted (bitcoin-only) Value4Value websites.
strfry! - C++ implementation backed by LMDB with efficient syncing of events using Merkle trees
stars! - C++ implementation backed by LMDB with efficient syncing of events using Merkle trees
SuperConductor! - Java Nostr-Relay Framework & Web Application. Java 20, Spring WebSocketSession 3.2.2, Spring Boot 3.2.4, atop . Simple. Clean. OO.
stars! - Java Nostr-Relay Framework & Web Application. Java 20, Spring WebSocketSession 3.2.2, Spring Boot 3.2.4, atop . Simple. Clean. OO.
nostr-java library! - Java Nostr-Relay Framework & Web Application. Java 20, Spring WebSocketSession 3.2.2, Spring Boot 3.2.4, atop . Simple. Clean. OO.
swarm! - Nostr Team Relay with additional controls for kinds, blossom media mirroring
stars! - Nostr Team Relay with additional controls for kinds, blossom media mirroring
SW2! - A relay with read and write whitelisting for private uses, small communities, knowledge bases, or dropboxes.
stars! - A relay with read and write whitelisting for private uses, small communities, knowledge bases, or dropboxes.
tandem! - WIP: community focused relay written in Go
stars! - WIP: community focused relay written in Go
Transpher! - experimental PHP implementation with file or sqlite storage, configurable limits
stars! - experimental PHP implementation with file or sqlite storage, configurable limits
zapstore/server! - A Nostr relay and Blossom server for the Zapstore ecosystem.
stars! - A Nostr relay and Blossom server for the Zapstore ecosystem.
zooid! - A multi-tenant Nostr relay designed for communities.
stars! - A multi-tenant Nostr relay designed for communities.
WoT relay! - relay for every note in your web of trust
stars! - relay for every note in your web of trust
wispA lightweight Nostr relay implementation focused on simplicity and performance
groups_relayA Nostr NIP-29 Group Chat Relay implementation
bloomBloom is a high-performance hybrid server for the Nostr ecosystem. It functions as both a Blossom Protocol implementation for media storage and a Nostr Relay for event distribution
nostr-relayAMPHP-based async WebSocket relay server for Nostr protocol
ShirushiA web-based Nostr protocol testing and monitoring tool built in Go. Test NIP implementations, monitor relay connections, and explore the Nostr network through an intuitive dashboard
AlgoRelay! - An algorithmic Nostr relay that personalizes feeds based on user interactions, follows, and viral content.
stars! - An algorithmic Nostr relay that personalizes feeds based on user interactions, follows, and viral content.
bcr-relay! - Specialized relay for the Bitcredit protocol.
stars! - Specialized relay for the Bitcredit protocol.
booger! - Nostr relay implementation by Stacker News.
stars! - Nostr relay implementation by Stacker News.
chronicle! - A personal Nostr relay that lets you keep your own copy of your notes.
stars! - A personal Nostr relay that lets you keep your own copy of your notes.
HORNET Storage! - A multimedia-focused Nostr relay with built-in support for storing larger media files.
stars! - A multimedia-focused Nostr relay with built-in support for storing larger media files.
jingle! - A simple Nostr relay framework.
stars! - A simple Nostr relay framework.
mimoty! - A Nostr relay implementation.
stars! - A Nostr relay implementation.
nex! - A Nostr relay implementation.
stars! - A Nostr relay implementation.
nostpy-relay! - A Python Nostr relay.
stars! - A Python Nostr relay.
nostr-filter! - A filter proxy for Nostr relays.
stars! - A filter proxy for Nostr relays.
NostrifyNostr framework for Deno and web — relay, client, and shared utilities by the Soapbox team.
note-mixer-relay! - A relay that mixes notes between users for privacy.
stars! - A relay that mixes notes between users for privacy.
noxir! - Nostr relay implementation in Elixir.
stars! - Nostr relay implementation in Elixir.
Pyramid! - Invite-only Nostr relay built on khatru, with web-of-trust style invitation tree.
Crays interpretation
For Crays, this category can matter as infrastructure, design inspiration, partner discovery, risk monitoring or a map of where the Nostr ecosystem is already crowded.