Back to Portfolio
💳

PayAccept

Universal Payment Acceptance Layer for the Autonomous Economy

About the Project

PayAccept is the universal payment acceptance layer for the autonomous economy. A single integration enables any business to accept payments from humans, AI agents, IoT devices, and machines — across fiat, stablecoins, and crypto. The 5-layer acceptance stack orchestrates across competing protocols (x402, AP2, ACP) with multi-rail settlement via CDP, thirdweb, Circle, and fiat rails.

Mach5 Contribution

Full Venture Build — Protocol Design, Platform, Mobile

Key Technical Highlights

  • •Protocol orchestration — unified API across x402, AP2, and ACP protocols
  • •Multi-facilitator settlement routing (CDP, thirdweb, Circle, Bridge, fiat)
  • •5 product verticals: Agents, APIs, Merchants, Machines, Embedded
  • •Sub-cent metering for usage-based API monetization
  • •NFC tap-to-pay + QR payments via React Native mobile app
  • •$25B SAM targeting $50-100M ARR by Year 3
Category
Fintech / Payments
Status
Active Development
Tech Stack
Next.js 16React 19Node.jsTypeScriptExpo/React NativeCDPthirdweb

Want to build something like this?

We bring the same technical depth to every venture we partner with.

Start a Conversation