Marketplace · API · x402

open-pay.jp/api/paid/hello

End-to-end smoke test for x402 clients: returns a greeting plus the settlement timestamp, so an agent can prove its payment path works before spending on real data.

Endpointhttps://open-pay.jp/api/paid/hello
Trust✓ Verified callable · 100% uptime over 1 checks · ~505 ms
PricingPay per call with x402, no account. Call it to get an exact quote before paying.
networkeip155:8453
schemeexact
pay to0x52d4901142e2B5680027da5EB47C86CB02a3cA81
methodGET
last updated2026-11-11T14:43:47.139Z

Use it

Call it (an x402 client pays automatically)

curl -i https://open-pay.jp/api/paid/hello
# 402 reply -> sign PAYMENT-REQUIRED with an x402 client (e.g. @x402/fetch) -> retry with PAYMENT-SIGNATURE

This listing as JSON

curl https://aipaygen.com/v1/catalog/api/x402-7c7e0729696faa6f

Search the whole marketplace from your agent (MCP)

{
  "mcpServers": {
    "aipaygen": {
      "url": "https://aipaygen.com/mcp"
    }
  }
}