PayAccept AgentPay

The trust layer on top of x402.

Turn any HTTP endpoint into a paid endpoint — then add receipts, replay protection, delivery proof, policy controls, and reconciliation. PayAccept AgentPay extends x402 for production-grade API and agent monetization without forking the protocol.

npm install @payaccept/x402

Start accepting payments in minutes

Install the SDK, protect an endpoint, return a payment requirement, verify payment, and grant access with signed receipts and webhooks.

npm install @payaccept/x402

How x402 works — and what PayAccept adds

  • A user or agent requests your endpoint
  • Your endpoint returns 402 Payment Required
  • The user or agent pays in stablecoin
  • PayAccept verifies the payment
  • Your endpoint grants access
  • PayAccept Trust Layer creates receipt, binding, and webhook

Built for API monetization and agent traffic

  • Data APIs and model endpoints
  • Agent tools and MCP servers
  • AI marketplaces and developer platforms
  • Micropayments between clients and servers

AgentPay features

  • x402 middleware and hosted checkout
  • PayAccept Trust Layer (binding, replay protection, delivery proof)
  • Signed receipts and webhooks
  • Facilitator routing via Protocol Router
  • Sandbox and production environments
  • Developer dashboard