XMTP

@xmtp.org

Come build the most secure and private messaging network in the world—owned by the people who build it and use it. xmtp.org

Every agent platform solves for intelligence. Almost none solve for trust. XMTP is the communication layer for agents on the open web: 🪪 Verified identities 📋 Permissions 👥 Humans-in-the-loop 📒 Shared state Trusted agentic messaging.

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💯 agree - it requires that we land on a standardized protocol for DM / GMs based on atproto IDs. All the same arguments for why AT Protocol was developed apply to the communications protocol. Needs to be open source and auditable. Closet we have to this right now is: bsky.app/profile/xmtp...

XMTP@xmtp.org · 6mo ago

Today, @bsky.app + @atprotocol.dev devs can plug into XMTP to give users what they've been asking for: quantum-encrypted, secure group chats that scale to millions. With our XMTPID identity model, it's finally here. 1/5

Wave just added support for ATProto identities, becoming the first quantum-secure group chat app that connects ATProto identities with any other identity, secured by XMTP. That means any Bluesky, Blacksky, or XMTP identity can now join fully secure, interoperable group chats.

What if you could send a message to anyone in the world without having to download an app or even use a browser? Introducing XMTP CLI - Decentralized communication inside your terminal. npm install -g @xmtp/cli

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Today, @bsky.app + @atprotocol.dev devs can plug into XMTP to give users what they've been asking for: quantum-encrypted, secure group chats that scale to millions. With our XMTPID identity model, it's finally here. 1/5

1/ Typically “office space” means employees only, badges, hierarchy, and half empty spaces. Closed to the community, users, customers, and partners. This changes today. Introducing the XMTP Switchboard - pop up offices around the world for our team and entire community.

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XMTP’s Ongoing Decentralization Progress (Jan 2026) Where we're at: Stage 1: Clean-slate testnet (Complete) Stage 2: Validation with strict performance targets (In Progress) Stage 3: 60-day migration prep Stage 4: Coordinated mainnet cutover 1/2

As of today, XMTP is now a fully quantum-resistant decentralized messaging protocol. This means, any developer, anywhere in the world can leverage XMTP to provide their users with private, decentralized, & quantum-resistant messaging.

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ATproto devs, app builders, dreamers of a more agentic world—this our opportunity to shape secure, private open E2EE messaging! This preliminary AT Messaging spec needs your help to finish. Dive in, share your brilliance, join #e2eeWG, and let’s build it together! github.com/ATProtocol-C...

github.com

chrisb@boscolo.co · last yr.

The #ATmosphereConf last weekend was 🔥🔥🔥 One amazing breakout was on E2EE Messaging—a topic I’m passionate about bringing to life on ATproto. To align the community, I wrote a vision paper on E2EE Messaging for ATproto. Check it out and let’s push this forward together!👇 whtwnd.com/boscolo.co/3...

To build a new communication network that requires global trust, you have to open source everything. True security comes from transparency. This is why XMTP's node software is open source—anyone can inspect, & verify every line of code. No more blind trust in a black box.

One inbox. Many identities. XMTP lets users link multiple identities + passkey or crypto wallet to a single secure inbox. This means any DiD, can link to XMTP and access secure, private messaging with XMTP.

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Privacy is under attack. 🇬🇧 The UK made Apple drop ADP. 🇮🇳 India forced a backdoor to WhatsApp. 🇷🇺 Russia & 🇹🇷 Turkey banned Discord. Centralized systems are breaking down & encryption is not enough. We need decentralized messaging. 1/7

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The #ATmosphereConf last weekend was 🔥🔥🔥 One amazing breakout was on E2EE Messaging—a topic I’m passionate about bringing to life on ATproto. To align the community, I wrote a vision paper on E2EE Messaging for ATproto. Check it out and let’s push this forward together!👇 whtwnd.com/boscolo.co/3...

A Vision for End-to-End Encrypted Messaging on ATproto | chrisb

A Vision for End-to-End Encrypted Messaging on ATproto End-to-end encrypted (E2EE) messaging built on ATproto could become the open, decentralized alternative to WhatsApp—free from lock-in, surveilla...

whtwnd.com

Privacy is under attack. 🇬🇧 The UK made Apple drop ADP. 🇮🇳 India forced a backdoor to WhatsApp. 🇷🇺 Russia & 🇹🇷 Turkey banned Discord. Centralized systems are breaking down & encryption is not enough. We need decentralized messaging. 1/7

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To build a new communication network that requires global trust, you have to open source everything. True security comes from transparency. This is why XMTP's node software is open source—anyone can inspect, & verify every line of code. No more blind trust in a black box.

It's one thing to build a low-latency, scalable messaging protocol; it's another thing to make it secure. Our zero major vulnerabilities audit from NCC Group Research (trusted by Matrix Olm & WhatsApp) shows XMTP's commitment to highly-secure messaging, from DMs to large groups. (1/2)

We could not be more excited about the XMTP improvement proposal that just dropped: community.xmtp.org/t/xip-55-pas... 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.

XIP-55: Passkey identity

Authors: Dakota Brink (@codabrink), Nick Molnar (@neekolas), Naomi Plasterer (@nplasterer) Abstract XIP-46 defined a flexible identity model that allows for XMTP to aggregate many accounts and device...

community.xmtp.org

The future of messaging is decentralized. "Apple’s iCloud backups aren’t encrypted by default, but Advanced Data Protection option was added in 2022, and must be enabled manually... Apple is expected to simply stop offering ADP in the UK." - @dompreston.com www.theverge.com/news/608145/...

Apple ordered to open encrypted user accounts globally to UK spying

The secret order would give the UK access to encrypted backups belonging to any user — not just Brits.

theverge.com