ContextQMD
Back to Go Micro

Agent x402 buyer

examples/agent-x402-buyer/README.md

6.7.1929 B
Original Source

Agent x402 buyer

This example shows an agent paying for a paid HTTP tool with x402 without using live funds or a live chain.

It starts a local paid endpoint guarded by wrapper/x402 seller middleware and a mock facilitator. A deterministic mock-model agent calls that endpoint as a tool, receives the HTTP 402 challenge, pays with AgentPayer, stays inside AgentBudget, retries the request, and prints the spend recorded for the run.

bash
go run ./examples/agent-x402-buyer

Expected output includes:

  • the paid tool response,
  • one facilitator verify and settle call, and
  • run spend: 7 smallest units (budget 10).

The payment token and facilitator are intentionally local development fakes. To settle real x402 payments, keep the same AgentPayer / AgentBudget shape but replace the payer with a wallet-backed implementation and configure the seller middleware with a hosted or self-run x402 facilitator.