Natural raises $30M Series A to build a payments stack for AI agents

TechCrunch·medium signal

One-year-old startup Natural raised $30M led by Kirsten Green at Forerunner to build financial architecture for autonomous AI transactions, positioning directly against Stripe's agent-payments work. The thesis is that agent-initiated purchases need different primitives than card-present or card-on-file commerce — authorization scoping, spend limits, and machine-readable dispute flows. Agent payments went from protocol drafts to funded competitive category in under 12 months.