Startup profile for XMTP Labs: latest funding, latest known valuation, total disclosed funding, investors, status, sources, and why the company is interesting. Part of the Venture Capital Tracker startup directory.
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XMTP Labs funding, valuation and investors

Company building XMTP — decentralized messaging protocol for crypto wallets and apps.

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Funding, valuation & investors

Answer-first snapshot

Latest funding

Series B

$20M · July 2025

Latest known valuation

Not publicly disclosed

Total disclosed equity funding

$40M

Excludes debt, grants, acquisitions, secondaries, and IPO proceeds.

Current status

private

series b · United States

Investors in latest funding

Lead: Union Square Ventures , Andreessen Horowitz

Sources: latest funding Last verified: 2026-07-25

Overview

XMTP Labs (operating as Ephemera) develops XMTP (Extensible Message Transport Protocol), an open decentralized messaging standard for blockchain wallets and applications. XMTP enables encrypted wallet-to-wallet messaging across apps — powering messaging in Coinbase Base app and 60+ integrated products. The company raised a $20M Series A in 2021 led by a16z crypto with Redpoint and Betaworks participating, and a $20M Series B in July 2025 co-led by Union Square Ventures and a16z crypto.

Why XMTP Labs is interesting

Ephemera (XMTP Labs) ships the protocol behind Base app messaging and 60+ integrated apps — web3's SMTP equivalent with a16z-led A and B rounds.

Product & use cases

XMTP provides permissionless encrypted messaging between blockchain identities — developers embed SDKs so any wallet or dApp can message users without centralized servers owning conversation data.

  • Wallet apps adding secure messaging between addresses
  • NFT and social dApps with native inbox functionality
  • Base and other L2 ecosystems standardizing on XMTP for user communication

Key facts

  • Series B (Jul 2025): $20M co-led by USV and a16z crypto — XMTP blog
  • Series A (2021): $20M led by a16z crypto — XMTP blog
  • 60+ apps integrated; Base app messaging

Funding history (newest first)

Series B

2025-07 $20M

Source: https://xmtp.org/blog/xmtp-series-b

Series A

2021 $20M

Source: https://xmtp.org/blog/xmtp-series-a

Investors in our directory

Funds linked from XMTP Labs's profile — open a fund page for stage focus and related deal articles.

Andreessen Horowitz Union Square Ventures Redpoint Ventures Betaworks Ventures

Competitive landscape

Edge: Early protocol adoption (60+ apps, Base integration) creates network effects — new apps default to XMTP rather than building proprietary message silos.

Web3 lacks shared messaging layer — XMTP aims to be SMTP for wallets. Base app adoption is flagship proof point. Risk: platforms build proprietary chat (Telegram, Discord) or new protocols fork XMTP. a16z + USV Series B funds protocol growth and developer ecosystem.

  • Farcaster DMs adjacent

    Social protocol with messaging; different architecture but competing for crypto social attention.

  • Signal / centralized chat alternative

    Non-crypto encrypted messaging; XMTP ties identity to wallet addresses.

  • Matrix protocol adjacent

    Open federated messaging; XMTP optimized for wallet-native web3 identity.

Notable stories

  • XMTP messaging shipped inside Coinbase's Base app — highest-visibility deployment of the protocol to date (XMTP blog).

Industries

Crypto & Web3 Developer Tools Infrastructure & Cloud

Related funding articles

Venture Capital Tracker pieces that cover XMTP Labs's financing or category context.

FAQs about XMTP Labs

Practical answers founders, operators, and investors typically search for.

XMTP (Extensible Message Transport Protocol) is an open decentralized messaging protocol for blockchain wallets and apps, built by XMTP Labs/Ephemera.
a16z (/fund/andreessen-horowitz) led Series A (2021). Series B (2025) co-led by a16z and USV (/fund/union-square-ventures). Redpoint and Betaworks also invested.
60+ integrated apps including Base app messaging per XMTP announcements.
XMTP provides encrypted wallet-to-wallet messaging; technical details on xmtp.org documentation.
XMTP is identity-bound to blockchain addresses/wallets — designed for web3 apps, not SMTP email replacement.
July 2025, $20M.
Ephemera is the company name operating XMTP Labs and developing the XMTP protocol.
Yes — XMTP offers SDKs for wallets and dApps documented at xmtp.org.
Series B (2025).
Protocol development company; no public profitability disclosure.
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