x402 paid endpoints — PayAccept Trust Layer quickstart available →
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x402 & Trust Layer

x402 makes payment possible. PayAccept makes it trustworthy.

x402 is an open protocol for instant stablecoin payments over HTTP — built for AI agents, APIs, and autonomous clients. PayAccept extends it with receipts, replay protection, delivery proof, policy controls, and merchant-ready operations.

npm install @payaccept/x402
Request → 402 → Pay → Verify → Access → Receipt

01

Core x402 flow

  • Request → 402 Payment Required
  • Stablecoin payment
  • Verification
  • Access granted
  • Receipt created

02

Why use PayAccept instead of x402 directly?

x402 handles the payment primitive. Real businesses also need tax-ready receipts, proof of delivery, agent spending policies, replay protection, merchant dashboards, e-commerce plugins, dispute evidence, risk checks, and multi-protocol routing.

  • PayAccept Trust Layer — binding, replay protection, delivery proof, evidence packages
  • PayAccept AgentPay — middleware, hosted checkout, developer dashboard
  • PayAccept Protocol Router — orchestrate x402, AP2, and ACP
  • PayAccept Commerce — merchant checkout and e-commerce plugins
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