Tools to buildon Nostr
The open-source developer tools behind everything we ship — from AI app builders to relay infrastructure and protocol explorers. All free, all yours.
The tools
Free and open-source. Each tag tells you how battle-tested it is.
Ditto Relay
A high-performance Nostr relay backed by OpenSearch — the relay infrastructure powering Ditto. Self-host your own or connect to the public instance.
MKStack
The full-stack toolkit for shipping Nostr apps fast — scaffolding, hooks, and deploy in one workflow.
NostrHub
Explore every NIP, browse event kinds, and publish your own custom NIPs to the protocol universe.
Nostrbook
Documentation and an MCP server for Nostr kinds and tags — give your AI agent the full protocol.
Ditto Extension
A browser extension that turns any page into a Nostr surface — sign in to sites, highlight text, and post to Nostr as you browse.
Stacks
One-command Docker infrastructure for Nostr. Spin up relays, services, and full stacks with ease.
Nostr WS Inspector
A Chrome DevTools extension that decodes live Nostr WebSocket traffic — inspect events, kinds, and relays as they fly.
Mi
Your personal Nostr archive — a browser-based local relay that stores your events right in your browser, giving you complete control over your data.
See what we built with them
These are the tools. The Toybox is the playground — a collection of fun, experimental apps we made with them.