XMTP Labs
Wilmington, US Β· Founded 2021 Β· Delaware corporation Β· 26 employees on LinkedIn Β· 16 known investors
XMTP is an open-source, decentralized messaging protocol that enables secure communication and payments between people and agents without intermediary control. It provides quantum-resistant encryption, supports multiple identity models, and integrates digital currencies into messaging experiences.
Also known as Extensible Message Transport Protocol Β· XMTP Β· XMTP Labs
Founders & leadership
XMTP Labs was founded in 2021 by Matthew P. Galligan, Shane McSimov, and Shane Mac.
Investors Β· 16
Also in the syndicate Β· 5
Reported raises Β· per SEC filings
Form D private placements$25.5M disclosed across 1 of 4 rounds Β· 2021β2025
βΆ$25.5MraisedFeb 2022 Β· 45 investors Β· Other TechnologyRule 506(b)
- Matthew P. GalliganExecutive Officer, Director, Promoter
- Shane McSimovExecutive Officer, Director, Promoter
- Offering amount
- $25.6M
- Amount sold
- $25.5M
- First sale
- Aug 2021
- Incorporated
- Corporation, Delaware, 2021
- Federal exemptions
- 06b
Source: SEC EDGAR Form D. Amounts as filed; amended filings shown once at their latest values.
Valuation Β· disclosed
Disclosed eventsSource: SEC prospectus filings, and round valuations the company or its investors disclosed β follow each entry's link for the claim.
Company profile
researched Aug 2026XMTP Labs is the primary contributor to XMTP, an open, decentralized messaging protocol and network intended to let users and applications exchange end-to-end encrypted messages and digital money without a central intermediary that can revoke access, read data, or shut the network down. The protocol is identity-agnostic: developers can connect existing identity models such as decentralized identifiers, passkeys, wallets, social accounts, or custom identities. XMTP describes support for quantum-resistant hybrid encryption with perfect forward secrecy and post-compromise security, an MLS implementation that the company says was fully audited by the cryptography firm that reviews Signal and WhatsApp, and protocol-level consent controls that let users allow or block senders network-wide for spam protection.
Beyond the protocol, XMTP Labs develops Convos, a messaging application built on XMTP for ephemeral, privacy-focused conversations, with iOS, shared mobile, CLI, and backend repositories published under the xmtplabs GitHub organization. The company positions XMTP as an open layer for chat-based apps that connects messengers, agents, and mini-apps into a single permissionless network, enabling builders to add payments, agents, apps, and games inside programmable group chats. Everything from nodes and smart contracts to SDKs and example applications is published as open source.
Earlier company materials described XMTP as a communication network for web3 whose mission is to connect creators, communities, applications, and users through end-to-end encrypted messaging between web3 identities; current materials state the mission as securing the world's freedom to communicate.
Founding story
Sources state XMTP was founded in 2021 by Matt Galligan and Shane Mac (Shane McSimov). A note from co-founder Shane Mac frames the company's origin in the founders' and team's prior experience building closed-internet products β social, chat, microblogging, photo, short-form video and chatbot apps, along with social algorithms, ad trackers, and platform APIs β and a subsequent conviction that systems a single company can shut down or surveil are closed, motivating a decentralized approach to personal communication.
Business model
XMTP Labs develops and maintains open-source protocol infrastructure and applications for the XMTP network. According to the company's site, application and agent builders pay approximately $5 per 100,000 messages sent over the network, and 100% of that payment is routed to independent node operators who run the infrastructure, rather than to a central operator.
Usage-based network fees of roughly $5 per 100,000 messages are paid by app and agent builders, with the stated payment flowing entirely to independent node operators. One third-party data aggregator estimates company revenue in the $5Mβ$10M range, though the basis for the estimate is not disclosed.
Traction
The company's website reports 55 million users connected across the network, over 4,500 developers, and over 1,700 production mini-apps. The xmtplabs GitHub organization hosts 65 repositories, including active Convos client, backend, CLI, and agent-starter projects. Third-party sources reported prior integration of the XMTP protocol into Coinbase's built-in wallet messaging.
Latest developments
A Series B of $16.55M and a Series B-1 of $3.45M were reported on 2025-07-17 at a $299.54M post-money valuation, bringing reported total funding to $45.57M. Development activity on the xmtplabs GitHub organization continues across Convos iOS, shared mobile, CLI, agent-starter, and releases repositories, with the most recent listed updates in August 2026.
βΈFull profile β market position, technology, go-to-market, geography, history, risks & controversies
Market position
XMTP presents itself as an open, neutral messaging layer connecting applications and agents, reporting 55 million connected users, more than 4,500 developers, and more than 1,700 production mini-apps. Applications and ecosystems cited as building on XMTP include World, Base App, Convos, Zora, and XMTP Chat; World is described as combining Proof of Humanity with XMTP messaging to create a verified human messaging network. A secondary-market platform categorizes the company in the fintech / blockchain software sector.
Stated differentiators include quantum-resistant, audited end-to-end encryption; identity agnosticism across DIDs, wallets, passkeys and social accounts with no platform lock-in; native support for digital money inside conversations; protocol-level, user-controlled consent for spam prevention; a permissionless network with no API keys or kill switch; and fully open-sourced nodes, smart contracts, SDKs and example apps.
Technology
XMTP uses quantum-resistant hybrid encryption and an implementation of the MLS (Messaging Layer Security) standard, providing perfect forward secrecy and post-compromise security against "Harvest Now, Decrypt Later" attacks; the company states the MLS implementation was fully audited by the same cryptography firm that reviews Signal and WhatsApp. The network runs on globally distributed independent nodes, supports any decentralized identifier or network identity, embeds native digital-currency transfers, and enforces network-level consent for spam control. Company materials list a stack including Golang, React, TypeScript, Solidity, libp2p, Rust, Double Ratchet/X3DH/zero-knowledge proofs, and Swift, Kotlin, and React Native for mobile.
Go-to-market
The company targets developers directly through open-source SDKs, documentation, public roadmaps, code repositories, and a developer community (the XMTP Switchboard Community), with no API keys or app-store gatekeeping required to build on the network. Adoption is also driven through integrations with consumer applications and wallets that embed XMTP messaging.
Developers and companies building chat-based applications, messengers, agents, mini-apps, and wallets, plus their end users who want encrypted messaging and in-conversation payments.
Geography
The company is fully remote and asynchronous, has been remote since inception, and asks employees to work in US time zones, holding two in-person offsites per year. Listed addresses vary across sources: Wilmington, Delaware; Austin, Texas; and a San Francisco, California address in one business-data aggregator record. Network nodes are described as globally distributed so operation continues if individual countries change their stance on privacy and encryption.
History
Founded in 2021, XMTP Labs raised a Series A in August 2021 and Series B and B-1 rounds in July 2025. Early positioning described XMTP as "the communication network for web3," focused on encrypted messaging between web3 identities, with an early web chat client (xmtp-inbox-web, now archived) and a reported Coinbase wallet messaging integration. The company later broadened its framing to a general decentralized messaging protocol supporting any identity model, agents, mini-apps, and payments, and began developing the Convos messaging application.
Risks & controversies
Sources report inconsistent basic company data β headquarters listed variously as Wilmington, Delaware, Austin, Texas, and San Francisco, California, and differing total funding figures between the internal record and the secondary-market source β which complicates verification. Several claims about scale (55M users, 4,500+ developers, 1,700+ mini-apps), encryption properties, and audit status come only from the company's own website and are not independently corroborated in the material reviewed. Revenue and employee-count figures come from third-party aggregators without stated methodology.
Compiled by commissioned research from 7 cited public sources β announcements, filings, and press listed under research sources below.
Key figures
latest reportedCompany-reported or press-reported figures, each dated to when it was claimed β not independently audited.
Timeline Β· 7
launches, deals, and filingsThe company states its MLS implementation was fully audited by the same cryptography firm that reviews Signal and WhatsApp.
World is described as combining Proof of Humanity with XMTP's secure messaging to create a verified human messaging network; Base App, Convos, Zora and XMTP Chat are also listed as building on XMTP.
XMTP Labs develops Convos, described as a next-generation messaging app for pop-up private conversations and everyday private chat for the AI era, with iOS, CLI, backend and agent-starter repositories published publicly.
Series B round led/joined by Andreessen Horowitz, Coinbase, Distributed Global, Lightspeed Faction, Offline Ventures, Sound Ventures and Union Square Ventures.
$16.6M source β
Concurrent Series B-1 tranche at the same $299.54M post-money valuation with the same investor group.
$3.5M source β
Company materials reference Coinbase's built-in wallet messaging being powered by the XMTP protocol, enabling Coinbase users to send payments via text.
XMTP raised a $19.99M Series A at a $62.92M post-money valuation with participation from Andreessen Horowitz, Coinbase, Betaworks, Distributed Global, Hawktail, Alchemy and numerous angel investors.
$20M source β
Dated company events from announcements, filings, and press; legal rows summarize public dockets and regulator releases.
Legal entities Β· 1
corporate structureIn the news
βΈResearch sources Β· 7
primary sources listed
- XMTP Labsxmtp.com Β· web
7 public sources were cited for this profile; the first-party ones are listed here.
Frequently asked questions
- What does XMTP Labs do?
- XMTP Labs builds XMTP, an open-source decentralized messaging protocol for encrypted chat and payments between people and agents.
- Who founded XMTP Labs?
- XMTP Labs was founded by Matthew P. Galligan, Shane McSimov, Shane Mac in 2021.
- Who are XMTP Labs's investors?
- XMTP Labs's investors include a16z crypto, Ambush Capital, Andreessen Horowitz, Betaworks, Coinbase Ventures, HAWKTAIL, Nascent, Redpoint Ventures and 3 more.
- How much funding has XMTP Labs raised?
- XMTP Labs has disclosed $25.5M raised across 1 of its 4 known rounds.
- Where is XMTP Labs headquartered?
- XMTP Labs is headquartered in Wilmington, US.