Nostr Implementation Possibilities

Nostr - Notes and Other Stuff Transmitted by Relays, the simplest open protocol that is able to create a censorship-resistant global "social" network once and for all.

It doesn't rely on any trusted central server, hence it is resilient; it is based on cryptographic keys and signatures, so it is tamperproof; it does not rely on P2P techniques, and therefore it works.

The NIPs exist to document what may be implemented by Nostr-compatible relay and client software.

NIPs listed here are not a protocol checklist. Nothing forces any software to implement any NIP. Each app picks the subset relevant to its use case. Don't implement something just because it exists in this repo. Other standards and NIPs may exist outside this repository (e.g. as pull requests) and may already be deployed in the wild -- they should also be considered for implementation.

• List
• Event Kinds
• Message Types
  • Client to Relay
  • Relay to Client
• License

List

• NIP-01: Basic protocol flow description
• NIP-02: Follow List
• NIP-03: OpenTimestamps Attestations for Events --- unrecommended: vulnerable to one specific attack, needs update
• NIP-04: Encrypted Direct Message --- unrecommended: deprecated in favor of NIP-17
• NIP-05: Mapping Nostr keys to DNS-based internet identifiers
• NIP-06: Basic key derivation from mnemonic seed phrase --- unrecommended: prefer a single nsec
• NIP-07: window.nostr capability for web browsers
• NIP-08: Handling Mentions --- unrecommended: deprecated in favor of NIP-27
• NIP-09: Event Deletion Request
• NIP-10: Text Notes and Threads
• NIP-11: Relay Information Document
• NIP-13: Proof of Work
• NIP-14: Subject tag in text events
• NIP-15: Nostr Marketplace (for resilient marketplaces) --- unrecommended: too complicated, try 99 instead
• NIP-17: Private Direct Messages
• NIP-18: Reposts
• NIP-19: bech32-encoded entities
• NIP-21: nostr: URI scheme
• NIP-22: Comment
• NIP-23: Long-form Content
• NIP-24: Extra metadata fields and tags
• NIP-25: Reactions
• NIP-26: Delegated Event Signing --- unrecommended: adds unnecessary burden for little gain
• NIP-27: Text Note References
• NIP-28: Public Chat --- unrecommended: try NIP-29 instead
• NIP-29: Relay-based Groups
• NIP-30: Custom Emoji
• NIP-31: Dealing with Unknown Events --- unrecommended: unnecessarily bloated
• NIP-32: Labeling
• NIP-34: git stuff
• NIP-35: Torrents
• NIP-36: Sensitive Content
• NIP-37: Draft Events
• NIP-38: User Statuses
• NIP-39: Linking Profiles to Other Platforms
• NIP-40: Expiration Timestamp
• NIP-42: Authentication of clients to relays
• NIP-43: Relay Access Metadata and Requests
• NIP-44: Encrypted Payloads (Versioned)
• NIP-45: Counting results
• NIP-46: Nostr Remote Signing
• NIP-47: Nostr Wallet Connect
• NIP-48: Bridged Events
• NIP-49: Private Key Encryption (ncryptsec)
• NIP-50: Search Capability
• NIP-51: Lists
• NIP-52: Calendar Events
• NIP-53: Live Streaming and Spaces
• NIP-54: Wiki
• NIP-55: Android Signer Application
• NIP-56: Reporting
• NIP-57: Lightning Zaps
• NIP-58: Badges
• NIP-59: Gift Wrap
• NIP-5A: Static Websites (nsites)
• NIP-60: Cashu Wallet
• NIP-61: Nutzaps
• NIP-62: Request to Vanish
• NIP-64: Chess (PGN)
• NIP-65: Relay List Metadata
• NIP-66: Relay Discovery and Liveness Monitoring
• NIP-67: EOSE Completeness Hint
• NIP-68: Picture-first feeds
• NIP-69: Peer-to-peer Order events
• NIP-70: Protected Events
• NIP-71: Video Events
• NIP-72: Moderated Communities --- unrecommended: try NIP-29 instead
• NIP-73: External Content IDs
• NIP-75: Zap Goals
• NIP-77: Negentropy Syncing
• NIP-78: Application-specific data
• NIP-7D: Forum Threads
• NIP-84: Highlights
• NIP-85: Trusted Assertions
• NIP-86: Relay Management API
• NIP-87: Cashu and Fedimint Discoverability
• NIP-88: Polls
• NIP-89: Recommended Application Handlers
• NIP-90: Data Vending Machines --- unrecommended: this got totally out of control, prefer use-case-specific microstandards
• NIP-92: Media Attachments Metadata (imeta)
• NIP-94: File Metadata
• NIP-96: HTTP File Storage Integration --- unrecommended: replaced by Blossom
• NIP-98: HTTP Auth
• NIP-99: Classified Listings
• NIP-A0: Voice Messages
• NIP-A4: Public Messages
• NIP-B0: Web Bookmarks
• NIP-B7: Blossom
• NIP-BE: Nostr BLE Communications Protocol --- unrecommended: only implemented once and unclear whether it works, requires review
• NIP-C0: Code Snippets
• NIP-C7: Chats
• NIP-CC: Geocaching
• NIP-EE: E2EE Messaging using MLS Protocol --- unrecommended: superseded by the Marmot Protocol
• NIP-F4: Podcasts

Event Kinds

This table is not exhaustive. For a machine-readable registry of all known event kinds prefer https://github.com/nostr-protocol/registry-of-kinds (or alternative registries following the same YAML schema).

Message types

Client to Relay

Relay to Client

License

All NIPs are public domain.

Contributors