NIP Reference
Nostr Implementation Possibilities (NIPs) are the protocol specifications that define how Nostr works. This reference lists all NIPs with their current status.
Status key:
- Final - Stable specification, widely implemented
- Draft - Work in progress, may change
- Unrecommended - Deprecated or superseded by newer NIPs
For in-depth explanations of specific NIPs, see our topic pages and newsletter NIP Deep Dives.
| NIP | Title | Status | Topic |
|---|---|---|---|
| 01 | Basic protocol flow description | Final | NIP-01 |
| 02 | Follow List | Final | |
| 03 | OpenTimestamps Attestations for Events | Final | |
| 04 | Encrypted Direct Message | Unrecommended | |
| 05 | Mapping Nostr keys to DNS-based internet identifiers | Final | |
| 06 | Basic key derivation from mnemonic seed phrase | Final | |
| 07 | window.nostr capability for web browsers | Final | |
| 08 | Handling Mentions | Unrecommended | |
| 09 | Event Deletion Request | Final | |
| 10 | Text Notes and Threads | Final | |
| 11 | Relay Information Document | Final | |
| 13 | Proof of Work | Final | |
| 14 | Subject tag in text events | Final | |
| 15 | Nostr Marketplace | Final | |
| 17 | Private Direct Messages | Final | |
| 18 | Reposts | Final | |
| 19 | bech32-encoded entities | Final | NIP-19 |
| 21 | nostr: URI scheme | Final | |
| 22 | Comment | Final | |
| 23 | Long-form Content | Final | |
| 24 | Extra metadata fields and tags | Final | |
| 25 | Reactions | Final | |
| 26 | Delegated Event Signing | Unrecommended | |
| 27 | Text Note References | Final | |
| 28 | Public Chat | Final | |
| 29 | Relay-based Groups | Final | |
| 30 | Custom Emoji | Final | |
| 31 | Dealing with Unknown Events | Final | |
| 32 | Labeling | Final | |
| 34 | git stuff | Final | |
| 35 | Torrents | Final | |
| 36 | Sensitive Content | Final | |
| 37 | Draft Events | Final | |
| 38 | User Statuses | Final | |
| 39 | External Identities in Profiles | Final | |
| 40 | Expiration Timestamp | Final | |
| 42 | Authentication of clients to relays | Final | |
| 43 | Relay Access Metadata and Requests | Final | |
| 44 | Encrypted Payloads (Versioned) | Final | |
| 45 | Counting results | Final | |
| 46 | Nostr Remote Signing | Final | |
| 47 | Nostr Wallet Connect | Final | |
| 48 | Proxy Tags | Final | |
| 49 | Private Key Encryption | Final | |
| 50 | Search Capability | Final | |
| 51 | Lists | Final | |
| 52 | Calendar Events | Final | |
| 53 | Live Activities | Final | |
| 54 | Wiki | Final | |
| 55 | Android Signer Application | Final | |
| 56 | Reporting | Final | |
| 57 | Lightning Zaps | Final | |
| 58 | Badges | Final | |
| 59 | Gift Wrap | Final | |
| 60 | Cashu Wallet | Final | |
| 61 | Nutzaps | Final | |
| 62 | Request to Vanish | Final | |
| 64 | Chess (PGN) | Final | |
| 65 | Relay List Metadata | Final | |
| 66 | Relay Discovery and Liveness Monitoring | Final | |
| 68 | Picture-first feeds | Final | |
| 69 | Peer-to-peer Order events | Final | |
| 70 | Protected Events | Final | |
| 71 | Video Events | Final | |
| 72 | Moderated Communities | Final | |
| 73 | External Content IDs | Final | |
| 75 | Zap Goals | Final | |
| 77 | Negentropy Syncing | Final | |
| 78 | Application-specific data | Final | |
| 7D | Threads | Final | |
| 84 | Highlights | Final | |
| 86 | Relay Management API | Final | |
| 87 | Ecash Mint Discoverability | Final | |
| 88 | Polls | Final | |
| 89 | Recommended Application Handlers | Final | |
| 90 | Data Vending Machines | Final | |
| 92 | Media Attachments | Final | |
| 94 | File Metadata | Final | |
| 96 | HTTP File Storage Integration | Unrecommended | |
| 98 | HTTP Auth | Final | |
| 99 | Classified Listings | Final | |
| A0 | Voice Messages | Final | |
| B0 | Web Bookmarks | Final | |
| B7 | Blossom | Final | |
| BE | Nostr BLE Communications Protocol | Final | |
| C0 | Code Snippets | Final | |
| C7 | Chats | Final | |
| EE | E2EE Messaging using MLS Protocol | Final |
Last updated: December 2025
See the NIPs repository for the authoritative source.