XMTP: The Messaging Layer of Web3 — Secure, Decentralized, and Programmable
XMTP (Extensible Message Transport Protocol) is the largest and most secure decentralized messaging network, designed to give users full ownership of their communications—just like they own their crypto. It enables end-to-end encrypted messaging, group chats, AI agents, and on-chain payments, all tied to your wallet identity.
Website: xmtp.org
🔐 Why XMTP Is a Game-Changer
- Decentralized Infrastructure: No central servers, no gatekeepers—messages are relayed via a permissionless node network
- MLS Encryption: Built on the Messaging Layer Security standard used by Mozilla, Google, and Cisco
- Wallet-Based Identity: Use ENS, Lens, Farcaster, or Base names to send/receive messages
- Cross-App Portability: Your inbox moves with you across apps like Coinbase Wallet, Lenster, Orb, Converse, and more
- Spam Protection: Consent-based messaging blocks unwanted contacts across all XMTP-enabled apps
🤖 Agents, Mini-Apps & Programmable Messaging
XMTP unlocks a new surface for builders: AI + Money + Messaging. You can now build agents that:
- Split bills in group chats (“Pay everyone $1 USDC”)
- Execute trades (“Buy 100 ETH when price hits $3,000”)
- Book travel, send invoices, or coordinate DAOs—all via chat
These agents run on XMTP’s open protocol and can be deployed across wallets and dApps.
💳 Payments + Messaging = Web3 Superpower
Unlike iMessage or WhatsApp, XMTP understands crypto:
- Send USDC, ETH, or any token directly in chat
- Coordinate payments across borders, apps, and wallets
- Use Coinbase Wallet + XMTP to send money with one message—no switching apps, no friction
This makes XMTP the first messaging protocol where money and communication are natively integrated.
🧑🏽💻 Developer Ecosystem
XMTP offers SDKs for:
- React Native, Swift, Kotlin, Node.js, Browser
- xmtp.chat: Interactive dev tool for building inbox apps
- Agent SDKs: Build bots that respond to messages, execute smart contracts, or manage wallets
- XIPs: Propose improvements to the protocol via XMTP Improvement Proposals
Over 2 million developers and 1,000+ production apps are already building with XMTP.
🚀 XMTP V3: The Future of Messaging
- Inbox-Based Identity: Supports EOAs, SCWs, and future Passkey wallets
- Flexible Content Types: Text, attachments, reactions, transactions, Quick Actions
- Group Chat Support: MLS-powered encrypted group messaging
- AgentKit: Coinbase Wallet integration for programmable agents
XMTP V3 is stable, extensible, and ready for mass adoption.
