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Kinds
In Nostr, events are categorized by their kind value, which determines the purpose and expected structure of the event.
Available Kind Definitions
| Kind | Name | Description | Defined in |
|---|---|---|---|
| 0 | User Metadata | Profile information and user settings | NIP-01 |
| 1 | Short Text Note | The basic text note/post | NIP-10 |
| 3 | Follow List | List of followed profiles | NIP-02 |
| 4 | Encrypted Direct Message | Private messages (deprecated) | NIP-04 |
| 5 | Event Deletion Request | Request to delete previously published events | NIP-09 |
| 6 | Repost | Sharing a text note with followers | NIP-18 |
| 7 | Reaction | Like, dislike, or emoji reaction to an event | NIP-25 |
| 8 | Badge Award | Award badges to users | NIP-58 |
| 9 | Chat Message | Simple chat messaging | NIP-C7 |
| 10 | Group Chat Threaded Reply | Threaded replies in group chats (deprecated) | NIP-29 |
| 11 | Thread | Discussion thread root | NIP-7D |
| 12 | Group Thread Reply | Replies to threads in group chats (deprecated) | NIP-29 |
| 13 | Seal | Encrypted wrapper for an unsigned event | NIP-59 |
| 14 | Direct Message | Private messaging with enhanced security | NIP-17 |
| 15 | File Message | Encrypted file sharing | NIP-17 |
| 16 | Generic Repost | Reposting non-text-note content | NIP-18 |
| 17 | Reaction to a Website | Like, emoji, or other reaction to web content | NIP-25 |
| 20 | Picture | Image-centric posts | NIP-68 |
| 21 | Video Event | Video-centric content | NIP-71 |
| 22 | Short-form Portrait Video | Vertical short-form video content | NIP-71 |
| 40 | Channel Creation | Create a public chat channel | NIP-28 |
| 41 | Channel Metadata | Update chat channel information | NIP-28 |
| 42 | Channel Message | Message posted to a channel | NIP-28 |
| 43 | Channel Hide Message | Hide a specific channel message | NIP-28 |
| 44 | Channel Mute User | Mute a user in a channel | NIP-28 |
| 62 | Request to Vanish | Request for complete data removal | NIP-62 |
| 64 | Chess (PGN) | Chess games in PGN format | NIP-64 |
| 1018 | Poll Response | Vote on a poll | NIP-88 |
| 1059 | Gift Wrap | Encrypted outer wrapper for secure messaging | NIP-59 |
| 1063 | File Metadata | Metadata for shared files | NIP-94 |
| 1068 | Poll | Create a poll with voting options | NIP-88 |
| 1111 | Comment | Structured comments on content | NIP-22 |
| 1337 | Code Snippet | Programming code with metadata | NIP-C0 |
| 1617 | Git Patch | Proposed changes to a Git repository using patches | NIP-34 |
| 1621 | Git Issue | Bug reports, feature requests, or questions for Git repositories | NIP-34 |
| 1984 | Reporting | Report objectionable content | NIP-56 |
| 1985 | Label | Apply labels to events and entities | NIP-32 |
| 2003 | Torrent | BitTorrent content index | NIP-35 |
| 2004 | Torrent Comment | Comments on torrents | NIP-35 |
| 4550 | Community Post Approval | Approval of posts by moderators | NIP-72 |
| 7374 | Cashu Quote | Tracks mint payment quotes | NIP-60 |
| 7375 | Cashu Token | Stores unspent Cashu proofs | NIP-60 |
| 7376 | Nutzap Redemption | Records redemption of Nutzap tokens | NIP-61 |
| 9000 | Group User Addition | Add a user to a group or modify their roles | NIP-29 |
| 9001 | Group User Removal | Remove a user from a group | NIP-29 |
| 9002 | Group Metadata Edit | Modify a group's metadata | NIP-29 |
| 9005 | Group Event Deletion | Delete or hide a specific event within a group | NIP-29 |
| 9007 | Group Creation | Create a new relay-based group | NIP-29 |
| 9008 | Group Deletion | Delete or deactivate an entire group | NIP-29 |
| 9009 | Group Invite Creation | Create an invitation code for a closed group | NIP-29 |
| 9021 | Group Join Request | Request admission to a group | NIP-29 |
| 9022 | Group Leave Request | Request to leave a group | NIP-29 |
| 9041 | Zap Goal | Fundraising target for lightning payments | NIP-75 |
| 9321 | Nutzap | P2PK Cashu token payment | NIP-61 |
| 9734 | Zap Request | Request for a lightning payment invoice | NIP-57 |
| 9735 | Zap Receipt | Confirmation of a lightning payment | NIP-57 |
| 9802 | Highlights | Highlighted content excerpts | NIP-84 |
| 10000 | Mute List | Content and users to hide from feeds | NIP-51 |
| 10001 | Pinned Notes | Notes to showcase on a profile | NIP-51 |
| 10002 | Relay List Metadata | User's preferred relays for discovery | NIP-65 |
| 10003 | Bookmarks | Saved content for later reference | NIP-51 |
| 10004 | Communities | Communities the user belongs to | NIP-51 |
| 10005 | Public Chats | Chat channels the user participates in | NIP-51 |
| 10006 | Blocked Relays | Relays clients should never connect to | NIP-51 |
| 10007 | Search Relays | Relays optimized for search queries | NIP-51 |
| 10009 | Simple Groups | Private group memberships | NIP-51 |
| 10013 | Private Relay List | Encrypted list of relays for private content | NIP-37 |
| 10019 | Nutzap Informational | Configuration for receiving Nutzaps | NIP-61 |
| 10030 | Emojis | User preferred emojis and pointers to emoji sets | NIP-51 |
| 10040 | Trusted Service Providers | Lists of authorized trusted assertion providers | NIP-85 |
| 10050 | DM Relays | User's preferred relays for direct messages | NIP-17 |
| 17375 | Cashu Wallet | Cashu wallet configuration | NIP-60 |
| 30000 | Follow Sets | Categorized lists of followed profiles | NIP-51 |
| 30002 | Relay Sets | Categorized relay groups for different purposes | NIP-51 |
| 30003 | Bookmark Sets | Categorized bookmark collections | NIP-51 |
| 30007 | Kind Mute Sets | Mute users for specific event kinds | NIP-51 |
| 30008 | Profile Badges | Badges displayed on a user profile | NIP-58 |
| 30009 | Badge Definition | Defines a badge that can be awarded | NIP-58 |
| 30023 | Long-form Content | Articles and blog posts | NIP-23 |
| 30024 | Draft Long-form Content | Unpublished drafts of articles | NIP-23 |
| 30030 | Emoji Sets | Categorized emoji groups | NIP-51 |
| 30078 | Arbitrary custom app data | Application-specific data storage without interoperability requirements | NIP-78 |
| 30382 | User Trusted Assertions | Computed metrics and statistics about users from trusted service providers | NIP-85 |
| 30383 | Event Trusted Assertions | Computed metrics and statistics about events from trusted service providers | NIP-85 |
| 30384 | Addressable Event Trusted Assertions | Computed metrics and statistics about addressable events from trusted service providers | NIP-85 |
| 30385 | External Identifier Trusted Assertions | Computed metrics and statistics about external entities from trusted service providers | NIP-85 |
| 30617 | Git Repository Announcement | Announce a Git repository for collaboration | NIP-34 |
| 30618 | Git Repository State Announcement | Provide current state of Git repository branches and tags | NIP-34 |
| 31234 | Draft Event | Private wrapper for any draft event | NIP-37 |
| 31922 | Date-Based Calendar Event | Calendar events that occur on specific dates | NIP-52 |
| 31923 | Time-Based Calendar Event | Calendar events that occur at specific times | NIP-52 |
| 31924 | Calendar | Collection of calendar events | NIP-52 |
| 31925 | Calendar Event RSVP | Response to a calendar event invitation | NIP-52 |
| 31989 | Handler Recommendation | Recommends applications that can handle specific event kinds | NIP-89 |
| 31990 | Handler Information | Provides information about how apps can handle specific event kinds | NIP-89 |
| 34550 | Community Definition | Definition of a moderated community | NIP-72 |
| 39000 | Group Metadata | Metadata for a relay-based group | NIP-29 |
| 39001 | Group Admins | List of administrators for a relay-based group | NIP-29 |
| 39002 | Group Members | List of members in a relay-based group | NIP-29 |
| 39003 | Group Roles | Defines the administrative roles in a group | NIP-29 |
Kind Ranges
The Nostr protocol specifies different ranges of kind values for different purposes:
- 1, 4-44, 1000-9999: Regular events
- 0, 3, 10000-19999: Replaceable events
- 20000-29999: Ephemeral events
- 30000-39999: Parameterized replaceable events
For more information on event kinds and ranges, see NIP-01.