Marketplace · API · x402

chappy-japan-address-preflight.pre23964wb.workers.dev/v1/jp/address/preflight

Reproducible Japan Post evidence before an autonomous agent submits a Japanese address. One 0.02 USDC x402 call returns a fail-closed town-level consistency decision, ordered source candidates, source version and SHA-256, explicit limitations, and the next safe input action. It does not claim deliverability, residence, identity, building, or room existence.

Endpoint	`https://chappy-japan-address-preflight.pre23964wb.workers.dev/v1/jp/address/preflight`
Trust	100% uptime over 1 checks · ~286 ms
Pricing	Pay per call with x402, no account. Call it to get an exact quote before paying.
network	eip155:8453
scheme	exact
pay to	0x2a997f68413B58766264bF10747e8700c8D59053
method	POST
last updated	2026-11-08T18:06:41.537Z

Use it

Call it (an x402 client pays automatically)

curl -i https://chappy-japan-address-preflight.pre23964wb.workers.dev/v1/jp/address/preflight
# 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/x402-747985a823fadf5c

Search the whole marketplace from your agent (MCP)

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