0xchat

No Registration Required

As a chat client based on the Nostr protocol, we only require the creation of a Nostr account to log in; there is no need to register through a phone number, email, or any other means. You must safeguard your nsec key, as it allows you to control your own data. Additionally, your Nostr account is compatible with other Nostr clients.

Private Group

For private groups, we use the NIP-17 chat room to support group member management. In this setup, group messages are processed through gift-wrapping and sent to all group members, ensuring that messages are received only by group members.

Relay Group

For open/closed groups, we implemented NIP-29. In an open group, anyone can join, while in a closed group, administrative approval is required. Group owners or administrators can manage permissions, add or remove group members, and send group notes. This setup supports large group chats.

Open Channels

We also provide an open channels feature, compatible with other nostr clients. These channels are public, allowing anyone to join and speak, with message content visible to all. This feature is primarily aimed at fostering community and enhancing chat enjoyment.

Audio & Video Call

We also offer E2EE audio and video call functionalities between contacts. Signaling communication is conducted through Nostr relay using NIP-100, with actual audio and video calls facilitated via ICE servers.

Push Notifications

Lightning Payment ??

For lightning payment, we have integrated a Cashu wallet into the app, utilizing the Lightning Network for ecash deposits and withdrawals. Within the app, users can send Ecash to friends and group members. The Ecash is stored locally, anonymizing ownership and effectively protecting user privacy.

Badge Collections

Finally, we offer a badge collection feature, where you can obtain badges of different levels by making donations to us. You can set these badges as your profile picture and also enjoy the corresponding privileges.