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XMTP

XMTP is a decentralized and secure messaging network that enables developers to integrate features like group chats, direct messages, and notifications into their applications. It provides enterprise-grade security powered by decentralization, utilizing the Messaging Layer Security (MLS) protocol. The platform is built for the web3 ecosystem, supporting various identities like ENS and wallet addresses, and is trusted by major players such as Coinbase Wallet, ENS, and Metamask.

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Description

XMTP (Extensible Message Transport Protocol) is a decentralized messaging network providing enterprise-grade, end-to-end encrypted communication for web3. It allows developers to build applications with features like direct messages, group chats, and notifications. The protocol's security is based on the IETF-standard Messaging Layer Security (MLS), ensuring forward secrecy and post-compromise security, protecting both message content and metadata. XMTP supports a flexible, privacy-first identity model, allowing users to link multiple wallet addresses (including ENS, Farcaster, and smart accounts) to a unified inbox, with user-controlled consent for who can message them. The entire stack is open-source and designed to be a credibly neutral, censorship-resistant platform, with its infrastructure moving towards a decentralized model involving an appchain on Base. The project is stewarded by a company named Ephemera and encourages community contributions through XMTP Improvement Proposals (XIPs).