NIP-37

Draft Wraps

draft optional

This NIP defines kind 31234 as an encrypted storage for unsigned draft events of any other kind.

The draft is JSON-stringified, NIP44-encrypted to the signer’s public key and placed inside the .content.

k tags identify the kind of the draft.

{
  "kind": 31234,
  "tags": [
    ["d", "<identifier>"],
    ["k", "<kind of the draft event>"], // required
    ["expiration", "now + 90 days"] // recommended
  ],
  "content": nip44Encrypt(JSON.stringify(draft_event)),
  // other fields
}

A blanked .content field signals that the draft has been deleted.

NIP-40 expiration tags are recommended.

Clients SHOULD publish kind 31234 events to relays listed on kind 10013 below.

Relay List for Private Content

Kind 10013 indicates the user’s preferred relays to store private events like Draft Wraps.

The event MUST include a list of relay URLs in private tags. Private tags are JSON Stringified, NIP44-encrypted to the signer’s keys and placed inside the .content of the event.

{
  "kind": 10013,
  "tags": [],
  "content": nip44Encrypt(
    JSON.stringify(
      [
        ["relay", "wss://myrelay.mydomain.com"]
      ]
    )
  )
  //...other fields
}

It’s recommended that Private Storage relays SHOULD be NIP-42 -authed and only allow downloads of events signed by the authed user.

Clients MUST publish kind 10013 events to the author’s NIP-65 write relays.

Source: nostr-protocol/nips/37.md version: 7b24bf8 2025-10-15T16:09:36-04:00