Fun Raises $72M to Build the Payment Plumbing Behind Crypto Apps
Payments infrastructure startup Fun has closed a $72 million Series A, positioning itself as a back-end settlement layer for crypto applications serving users across what it describes as more than 100 countries.
Fun announced the round on May 1, 2026, though it closed in late January. Multicoin Capital and SignalFire co-led the investment, joined by Infinity Ventures, Pharsalus Capital, and Tinder co-founder Justin Mateen. The raise follows a $3.9 million seed round in 2022 and brings the roughly 30-person company into a well-capitalized position among pure-play onramp infrastructure providers.
What Fun Actually Does
Fun is not a consumer product. It operates as invisible payments plumbing embedded inside other applications, handling the mechanics of moving money between fiat currencies and crypto networks. When a user deposits dollars into a DeFi lending protocol or withdraws stablecoins to a bank account, a company like Fun handles the routing, settlement, and compliance checks in the background. Current clients include prediction market platform Polymarket, trading platform Lighter, and lending protocol Aave.
The company self-reports processing more than $18 billion in annual transaction volume across its 20-plus client base. That figure cannot be independently verified through on-chain analytics, since Fun's infrastructure routes through clients' own smart contracts rather than a single traceable address.
Founder and CEO Alex Fine, 26, described the core business simply: "If you have a money app, a finance app, how do you actually get the money in and out? That's what we do really well." Fine dropped out of Stanford in 2020 and spent two years on other projects before founding Fun in 2022. The company operated largely in stealth until this announcement, which explains the roughly three-month gap between closing and disclosure.
Why Multicoin Is Paying Attention
Multicoin Capital's 2026 investment thesis centers on programmable payments infrastructure and stablecoins as the default rail for the next generation of financial applications, including transactions made by AI agents. General Partner Spencer Applebaum sees Fun's path expanding beyond its current crypto-native client base: "As fintechs and other neobanks around the world start to adopt tokens and stablecoins, I think Fun is actually pretty well-positioned to basically provide the same service that they provide to Polymarket and Lighter and Aave to those non-crypto native companies over time."
Fine shares that view of the long-term addressable market. "If you think about where value lives, where value is held, there's many, many, many trillions of assets that all live in databases or live on paper today, and over the next 20 years, we'll see all of those assets move [on-chain]," he said.
Regional Stakes: Southeast Asia, Africa, South Asia
The funding carries particular weight outside the United States. The global crypto onramp market, which covers services that convert fiat money into digital assets, was valued at $8.4 billion in 2025 and is projected to reach $34.6 billion by 2034, according to DataIntelo. The fastest-growing user cohorts are concentrated in Southeast Asia, Sub-Saharan Africa, and Latin America, though coverage here focuses primarily on Africa and South and Southeast Asia.
Fun plans to open a Singapore office using Series A capital. Singapore's Monetary Authority operates one of the more established licensing regimes in the region, including a dedicated Major Payment Institution (MPI) licence for payment infrastructure companies, making it a practical hub for infrastructure providers targeting South and Southeast Asian markets. India, Indonesia, Vietnam, Pakistan, and Nigeria all rank in the top 10 of the 2026 Global Crypto Adoption Index.
Africa's numbers are harder to ignore. Sub-Saharan Africa recorded more than $205 billion in on-chain value between July 2024 and June 2025, a 52 percent increase year-over-year according to Chainalysis. Stablecoins accounted for 43 percent of total sub-Saharan on-chain volume over the same period, per the Transak Africa Fintech Report 2026, and stablecoin volumes grew 180 percent year-over-year. Nigeria accounted for 40 percent of regional inflows. Four Sub-Saharan African countries now sit in the global adoption top 20, up from two in 2024.
Fun's B2B model could prove better suited to navigating these markets than consumer-facing competitors like MoonPay or Transak. In Nigeria and Kenya, where regulators have raised capital requirements for crypto exchanges and imposed new transaction taxes in 2026, the compliance burden falls more heavily on client platforms than on infrastructure-layer providers, at least as an analytical matter. That structural separation may work in Fun's favor, though the dynamic has not been formally adjudicated in either market.
If Fun extends its payment rails to cover mobile money networks such as M-Pesa in Kenya, bKash in Bangladesh, Easypaisa and JazzCash in Pakistan, or OPay and Moniepoint in Nigeria, it could quietly become the settlement backbone for DeFi activity in markets where those networks dominate everyday finance. Spencer Applebaum has cited neobanks in precisely these markets as the next tier of potential Fun clients.
India presents a harder case. The Reserve Bank of India blocked publication of a comprehensive crypto policy paper in April 2026, leaving fiat onramp rules effectively unresolved in practice. A 30 percent flat tax on digital asset profits, plus a 4 percent cess, remains in force.
Fun's back-end positioning may give it more regulatory flexibility than consumer-facing rivals, but the structural headwinds are real.
What Comes Next
Fun's competitors are scaling aggressively. MoonPay reports 30 million customers and is reportedly in talks for investment at a $5 billion valuation from Intercontinental Exchange, the NYSE's parent company. Ramp Network covers more than 180 countries with embedded solutions for DeFi apps and Web3 wallets.
Fun's differentiation relies on the depth of its settlement infrastructure rather than brand recognition, a bet that the unsexy plumbing layer is where durable margin actually sits. Whether a 30-person team processing a self-reported $18 billion annually can hold that position as better-funded rivals expand into the same infrastructure layer will be the question this raise is meant to answer.