Vitalik Buterin wrote a check. The Ethereum co-founder’s undisclosed investment in Daimo, a Santa Monica-based crypto payments startup, is the most visible signal for a company otherwise operating in near-stealth. The $2 million seed round, closed in March 2024, backs a specific technical bet: that a non-custodial wallet secured by phone passkeys, not seed phrases, can become the default payment layer for stablecoin apps [TheCompanyCheck, Unknown] [RootData, 2026].
The Passkey Wedge
Daimo’s core product is a consumer wallet for USDC stablecoins on Coinbase’s Base network. The technical differentiation is its reliance on smartphone secure hardware,Apple’s Secure Enclave or Android’s equivalent,to store private keys. Users sign transactions with a fingerprint or face scan, eliminating the notorious 12-word recovery phrase that has blocked mainstream adoption. Under the hood, the wallet uses ERC-4337 smart accounts for features like social recovery and gas sponsorship, a standard Buterin has championed [StartupSeeker, 2024] [Web3 Galaxy Brain, June 2023]. For co-founders Nalin Bhardwaj and DC Posch, the passkey is the wedge. It is the entry point for users who want self-custody without the complexity, and the foundation for their larger platform play.
A Platform for Stablecoin Apps
That platform is Daimo Pay, an SDK and API suite for developers. The pitch is simple: embed self-custodial, stablecoin-based accounts and payments into any app without managing wallet infrastructure. A fintech building a global remittance feature, for instance, could use Daimo Pay to handle the crypto rails while focusing on its own compliance and user experience. The SDK supports cross-chain deposits, routing funds from “any currency, chain, or app” to a user’s chosen stablecoin on Base [pay.daimo.com, Unknown]. Early integrations, like one with MiniPay for cross-chain deposits, show the model in action [minipay.to, Unknown]. The company’s tagline frames the ambition: “the ramp for ambitious stablecoin apps” [daimo.com, Unknown].
The Early-Stage Calculus
With a team of four and a seed round that is modest by crypto standards, Daimo’s path is not without pressure. The competitive field includes well-funded wallet and onboarding infrastructure players like Privy and Dynamic. Daimo’s focus on Base is a strength for alignment with a major ecosystem, but also a potential constraint if multi-chain demand accelerates. The company’s traction with developers and end-users remains largely unreported in the public record. Its credibility, for now, is anchored in technical grants from the Ethereum Foundation and Optimism’s retroPGF program, and in the validation of its lead investor [daimo.com, Unknown]. The bet is that a superior user experience, baked into a developer-first platform, can carve out a durable slot in the payments stack.
The $2 million seed, with backing from Buterin and engineer Feross Aboukhadijeh, values execution over hype [Crunchbase, 2026]. For a market saturated with speculative assets, Daimo’s stablecoin focus is a pragmatic turn. The question for Bhardwaj and Posch is whether the passkey is enough to move the needle for the next million users, or if the real use is in the hands of the developers building on top of it.
Sources
- [TheCompanyCheck, Unknown] Daimo Company Profile & Funding | https://www.crunchbase.com/organization/daimo
- [RootData, 2026] A look at 7 crypto projects that Vitalik Buterin has invested in | https://www.rootdata.com/news/238861
- [StartupSeeker, 2024] Daimo Startup Profile | http://www.angel.co/
- [Web3 Galaxy Brain, June 2023] DC Posch and Nalin Bhardwaj, Founders of Daimo | https://web3galaxybrain.com/episode/DC-Posch-and-Nalin-Bhardwaj-Founders-of-Daimo
- [pay.daimo.com, Unknown] Daimo Pay | Frictionless deposits for stablecoin apps | https://pay.daimo.com
- [minipay.to, Unknown] MiniPay + Daimo Pay: Deposit 1,200+ Tokens from 20+ Chains | https://minipay.to/blog/minipay-daimo-crosschain-deposit
- [daimo.com, Unknown] Daimo | The ramp for ambitious stablecoin apps | https://daimo.com/
- [Crunchbase, 2026] Daimo - Financial Details | https://www.crunchbase.com/organization/daimo/financial_details