Saul Carlin

@smc

125 Following

211 Followers

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1/ XMTP's V3 update this week laid the foundation for truly chain-agnostic, peer-to-peer messaging. Here's what this could look like in action, courtesy of v0 and Tailwind. Demo: https://v0-xmtp-v3-wireframes.vercel.app/ Walkthrough:👇

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XMTP V3 changes how identity works for messaging. In V2, your inbox was your wallet — tightly bound to a single ETH address. Yesterday's V3 update decoupled that. Here's what changed 👇

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Proud of the @xmtp team for shipping the biggest update yet to the XMTP V3 protocol across all mobile, web, and server-side SDKs. ✨ 30+✨ features hardened: ✅ DMs ✅ MLS ✅ Groups ✅ Consent ✅ Attachments ✅ Group names ✅ Group photos ✅ Read receipts ✅ Caching layer

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Passkey inboxes make it so that, in theory, any ownable identity can use XMTP. All it needs is keys to sign with. Which kind of identity should XMTP support next?

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4/ AFK insurance for alpha groups Listens in the gc and makes trades based on what it hears Any group member can fund the agent and get a dividend Now it hurts less when you're offline

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Here's how this works: 1. Your device securely stores a passkey 2. This passkey controls your XMTP ID, just like a private key controls your crypto wallet

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PSA to XMTP devs: You can follow our progress on roadmap milestones in the XMTP community forums👇 https://community.xmtp.org/t/xmtp-protocol-roadmap-2025-development-timeline/887

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I could not be more excited about XIP-55: https://community.xmtp.org/t/xip-55-passkey-identity/874 Passkey accounts and wallet accounts, all on the same network. It's instant access to decentralized messaging for anyone with an Apple or Android device.

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Decentralized social and messaging will let agents roam free. A limitless frontier for economic opportunity and a crucible for AI safety.

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trading bot in replies: everyone sees your moves trading bot in DMs: you move in silence

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Funny how open decentralized networks provide better privacy than 'secure' walled gardens - there's no single entity that can be legally compelled to compromise the system. https://www.washingtonpost.com/technology/2025/02/07/apple-encryption-backdoor-uk/

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For 3 years, we've been obsessed with one thought: What if messaging belonged to all? Today's testnet launch is a giant leap towards that future - where privacy is the default, spam is dead on arrival, and you can truly own your identity and communications.

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Incredibly proud of @xmtp's trailblazing production implementation of Messaging Layer Security, ratified last year by the IETF as the new internet standard for secure, private messaging.

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Business messaging done right: your keys, your consent.

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Smart wallets will onboard the next billion. XIP-44 brings them to XMTP using ERC-1271 signature verification. This means any smart contract that adds the ERC-1271 interface can use the network directly. Voila: trustless business messaging for NFT creators, DeFi protocols, DAOs, etc.

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It’s Apple Cash but global, permissionless, and decentralized.

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Was so cool to see @paragraph frames just appear in @converseapp without a software update. Composability is magic.

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What excites me the most about /open-frames is that each new context inspires new experiences. Feeds -> multiplayer, public Group chat -> multiplayer, private DMs (+ bots) -> single-player, private Congratulations @df @nickm @mg on extending Frames into these new canvases, and more to come.

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GROUP CHAT is now available on the XMTP dev network. 🔐 End-to-end encrypted w/ IETF Messaging Layer Security 👥 Groups of up to 250 members (but more later) 🔑 Token-gate w/ @airstack.eth data 🖼️ Yes, it's Frames-ready Builders, start your engines. Docs: https://community.xmtp.org/t/group-chats-in-alpha/548

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Proud of the XMTP core dev team’s work on XIP-42. You’ve never had this kind of control over your communications.

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