Natural

Fintech · AI Infrastructure · Payments

Funding

Natural raises $30M Series A to build payment rails for AI agents

The startup is betting AI agents will need bank and stablecoin rails that move at computer speed, not human speed.

• Natural raised $30 million in a Series A round led by Forerunner Ventures, bringing its total funding to $40 million.
• Founded in 2025 by former Ivella and Nextdoor executives, Natural is building payment infrastructure so autonomous AI agents can pay, get paid, and transact without human authorization.
• The rails are designed to support both traditional bank payments and stablecoins, aiming to let agents transact at machine speed rather than waiting on human-paced authorization.
• Natural's pitch directly targets Stripe, which just weeks earlier launched its own 'machine payments' tool using USDC and the x402 protocol to let developers charge AI agents.
• The raise lands amid a broader industry push: Visa, Mastercard, Stripe, Google, and 40 founding organizations just launched the Linux Foundation-backed x402 Foundation to standardize agent-to-agent payments.
• Early agentic payment volumes remain tiny: the x402 protocol processed about 109.6 million transactions worth roughly $15 million since its May 2025 launch, per a Visa and Artemis report.
• Natural is entering a crowded, fast-moving field where incumbents like Stripe and Visa are already building agent-native rails, so its edge will hinge on speed and distribution rather than a novel concept.