Agentcard

building @agentcardhq (yc s26)

Agentcard issues single-use virtual Visa cards that AI agents can create and spend on their own, funded from a company wallet and accepted anywhere Visa is. The cards are aimed at owners, operators, and users of AI agents, and each card can be scoped with spend limits so an agent that hallucinates a purchase or gets stuck in a retry loop cannot drain a shared credit line. This launch introduces Agentcard for companies, a drop-in that lets startups give their users' agents their own cards at scale, with budgets and spend controls, wired up through an API in a few minutes rather than through a merchant integration. The company was founded by Karen Serfaty and Felipe Abello and is part of Y Combinator's Summer 2026 batch, based in San Francisco. Serfaty was previously CEO at Atlas, an expense card for global teams that was acquired by Remote.com, and later served as GM of Cards at Remote, following earlier co-founding roles at Palabra and Nilus. Abello was the first employee at Rappi, founded and ran Nara, and co-founded infactory.ai before starting Agentcard. The launch matters right now because agent commerce is moving from demos to real checkouts, and teams shipping agent features need a payment primitive that does not require handing an agent a corporate card. To pull integrations forward, the team is offering a 90 percent discount to companies that implement within two days of launch, matching the pricing already given to YC startups.

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