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better-auth-nostr

github.com/leon-wbr/better-auth-nostr Nostr Open-source projectOpen source

better-auth-nostr adds NIP-98 Nostr authentication to Better Auth through a plugin for login flows.

Visit better-auth-nostr 24 alternatives
github.com/leon-wbr/better-auth-nostr
better-auth-nostr homepage screenshot

About better-auth-nostr

better-auth-nostr is an open-source plugin for Better Auth that adds Nostr-based login using NIP-98. On the server, it validates incoming NIP-98 tokens and creates a session cookie without touching passwords or private keys. It also stores each Nostr public key in a configurable nostrPubkey model, so users keep a linked identity, and it lets users attach additional public keys to an existing account through an authenticated endpoint.

The client helper signs the NIP-98 event from one of three sources, in order of precedence: a signer object passed in, an nsec string (bech32 or 64-character hex), or a NIP-07 browser extension that exposes window.nostr.signEvent. The plugin supports NIP-46 remote signers, which the source names as Amber, nsec.app and nsecbunker. Remote signer sessions are live relay subscriptions, so the application must call close() when finished.

Key features

  • Validates NIP-98 tokens and creates a session cookie for Better Auth
  • Stores each Nostr public key in a configurable nostrPubkey model
  • Links additional public keys to an existing account through an authenticated endpoint
  • Client helper signs in with a passed signer, an nsec string, or a NIP-07 extension
  • Supports NIP-46 remote signers through bunker:// URIs or nostrconnect:// QR sessions
  • Lets remote signer sessions resume by persisting the client secret key and bunker URI
Best for: Developers who want to add Nostr-based login and public key linking to a Better Auth application.
Good for
  • The server-side flow works without passwords or private keys.
  • Supports both NIP-46 remote signers and NIP-07 browser extensions.
  • Source code is publicly available under an open-source license.
Watch out for
  • Remote signer sessions must be closed manually by the developer.
  • Some signers prompt for each signature regardless of the permissions requested.
  • Default permissions cover only sign_event:27235, so other signing needs the perms option.

better-auth-nostr at a glance

Type
Open-source project
Pricing
Not confirmed. Check the site
Platforms
Browser extension
Open source
Yes · Source code
Language
English
Last checked
Oct 6, 2026 · Online when checked
Listed
Oct 5, 2026
open sourcebrowser extension

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better-auth-nostr FAQ

Does the server need a user's password or private key to sign them in?
No. The plugin validates NIP-98 tokens and creates a session cookie without touching passwords or private keys.
How can users keep their key in a separate signer instead of pasting an nsec?
The client supports NIP-46 remote signers. Users can paste a bunker:// URI or a NIP-05 identifier whose provider advertises NIP-46, or the app can generate a nostrconnect:// URI to show as a QR code.
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Listing maintained by Chris McClure and the WebIndexly editors · Updated Oct 12, 2026 · How we rank