U

U Chat relay

This host runs the u.cash nostr relay. Messaging clients connect over WebSocket:

wss://chat.u.cash/

Private direct messages follow NIP-17: end-to-end encrypted (NIP-44) gift-wrapped events (NIP-59) signed by keys that never leave the sender's device. This relay stores sealed envelopes only.

NIP-05 verified identities: name@chat.u.cash via /.well-known/nostr.json.

Part of the u.cash network. Get the app at mobile.u.cash.