With XMTP, you can use various types of signatures to sign and verify payloads. Sign with an external wallet When a user creates, adds, removes, or revokes an XMTP inbox’s identity or installation, a signature is required.

Learn about the types of wallet address signatures you might be prompted to provide when using apps built with XMTP. These signatures are always made with a specific wallet address controlled by your wallet.

XMTP's fully audited implementation provides perfect forward secrecy and post-compromise security, ensuring messages can never be retroactively decrypted. Encryption in XMTP → Identity

XMTP transports a message payload as a set of bytes that can represent any format that a developer wants to support, such as plain text, JSON, or non-text binary or media content. With XMTP, these message formats are called content types.

Dec 6, 2022 · After 12 months of work, we are excited to announce XMTP Protocol v2. “With XMTP v2, we’ve doubled down on our commitment to building the most secure, privacy-preserving communications protocol,” said Matt Galligan, CEO of XMTP Labs.

Brand assets and usage guidelines. Contribute to xmtp/brand development by creating an account on GitHub.

Sep 18, 2023 · XMTP is a new protocol that provides secure and private messaging between blockchain accounts, focusing on decentralization and user ownership. XMTP works in three layers - the application layer, client layer, and network layer - to enable decentralized messaging and interaction between different platforms and applications.

Feb 11, 2025 · Whether it's ensuring secure transactions in DeFi, fostering trust in e-commerce, or enhancing player experience in gaming, XMTP is the connective tissue that binds various sectors with common communication standards. Here's a concise look at how XMTP is revolutionizing the way we interact and transact in today's decentralized world.

Sending end-to-end encrypted crypto wallet messages on XMTP is as easy as sending an email or SMS message.

Feb 13, 2025 · Unlike XMTP’s other signature types, the signatures of passkeys are bound to relying party identifiers to protect against phishing. The signing provider generally gets to dictate what this value is, so the signer will have to provide it along with the public key for XMTP to track.