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:👇

3/ Make your inbox discoverable by linking identities like Ethereum and Solana wallets, Bluesky DIDs, Farcaster FIDs, or Basenames.

Identity links are recorded on XMTP's L3 appchain for cryptographic verifiability.

4/ Set your default identity to control how others see you, and choose a recovery identity to regain access if needed.

5/ Message anyone by ENS, wallet address, or linked usernames. Ethereum, Solana, Bluesky—all in one app.

6/ Chat together using any of your linked identities, and the conversation lands in the same unified inbox.

2/ Start instantly in any app with just a passkey—no phone or wallet required. Privately share your inbox with friends via QR.