Atum raises $13.5M to build an open payments network that doesn’t touch your money

A new fintech startup called Atum just stepped out of stealth mode with a $13.5 million seed round and a pitch that sounds almost counterintuitive: build a payments network that doesn’t actually move the payments. The San Francisco-based company unveiled its Open Payments Network on September 22, designed to act as a coordination layer connecting payment initiators, like apps, enterprises, and AI agents, with independent settlement providers who actually handle the money. Atum itself never issues currency, never operates a blockchain, and never takes custody of anyone’s funds. Who’s betting on this The seed round was led by Variant, the crypto-native venture fund known for backing protocol-level infrastructure. PayPal Ventures and Abstract Ventures also participated, giving Atum a roster of backers that spans both traditional payments and crypto. At the helm is Pete Cooling, who previously led Visa’s crypto product efforts and was involved with the Linux OpenWallet Foundation. His background straddles exactly the two worlds Atum is trying to bridge: legacy payment rails and the programmable money infrastructure that crypto protocols have been building for years. How it actually wor...