NIP-01: Basic protocol flow description

NIP-02: Contact List and Petnames

NIP-03: OpenTimestamps Attestations for Events

NIP-04: Encrypted Direct Message

NIP-05: Mapping Nostr keys to DNS-based internet identifiers

NIP-06: Basic key derivation from mnemonic seed phrase

NIP-07: window.nostr capability for web browsers

NIP-08: Handling Mentions

NIP-09: Event Deletion

NIP-10: Conventions for clients' use of e and p tags in text events

NIP-11: Relay Information Document

NIP-12: Generic Tag Queries

NIP-13: Proof of Work

NIP-14: Subject tag in text events.

NIP-15: End of Stored Events Notice

NIP-16: Event Treatment

NIP-19: bech32-encoded entities

NIP-20: Command Results

NIP-21: nostr: URL scheme

NIP-22: Event created_at Limits

NIP-23: Long-form Content

NIP-25: Reactions

NIP-26: Delegated Event Signing

NIP-28: Public Chat

NIP-33: Parameterized Replaceable Events

NIP-36: Sensitive Content

NIP-40: Expiration Timestamp

NIP-42: Authentication of clients to relays

NIP-50: Keywords filter

NIP-56: Reporting

NIP-57: Lightning Zaps

NIP-65: Relay List Metadata