Saul Carlin

@smc

125 Following

209 Followers

Saul Carlin pfp

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:👇

1 reply

0 recast

2 reactions

Saul Carlin pfp

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 👇

1 reply

0 recast

8 reactions

Saul Carlin pfp

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

1 reply

2 recasts

4 reactions

Saul Carlin pfp

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?

0 reply

1 recast

3 reactions

Saul Carlin pfp

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

0 reply

0 recast

1 reaction

Saul Carlin pfp

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

1 reply

1 recast

5 reactions

Saul Carlin pfp

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

0 reply

0 recast

3 reactions

Saul Carlin pfp

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.

0 reply

13 recasts

14 reactions

Saul Carlin pfp

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

0 reply

5 recasts

6 reactions

Saul Carlin pfp

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

1 reply

0 recast

3 reactions

Saul Carlin pfp

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/

0 reply

4 recasts

3 reactions

Saul Carlin pfp

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.

2 replies

23 recasts

49 reactions

Saul Carlin pfp

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.

1 reply

1 recast

5 reactions

Saul Carlin pfp

Business messaging done right: your keys, your consent.

0 reply

0 recast

1 reaction

Saul Carlin pfp

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.

1 reply

0 recast

2 reactions

Saul Carlin pfp

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

0 reply

0 recast

0 reaction

Saul Carlin pfp

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

0 reply

0 recast

1 reaction

Saul Carlin pfp

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.

0 reply

4 recasts

4 reactions

Saul Carlin pfp

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

0 reply

1 recast

6 reactions

Saul Carlin pfp

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

0 reply

0 recast

1 reaction