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Send a Nod, Start a Conversation Secure, end-to-end encrypted messaging for Web3. Message any Ethereum wallet address directly, no phone numbers, no emails, just your wallet. 0xNod is a decentralized, wallet-based messenger that combines encrypted peer-to-peer communication with autonomous AI agents and crypto-native payments. Users connect any Ethereum wallet — no sign-ups, no passwords — and instantly access private chats, programmable group rooms, and on-demand AI intelligence, all secured by XMTP’s end-to-end encryption..