Marketplace · API · x402

mart402.com/v1/verify

Invoice field verification for AI agents: arithmetic consistency of invoice fields, line-item totals, JP registration number check-digit + corporate-number existence observation (official NTA registry), accounting JSON. $0.015/call.

Endpointhttps://mart402.com/v1/verify
Trust✓ Verified callable · 100% uptime over 1 checks · ~344 ms
PricingPay per call with x402, no account. Call it to get an exact quote before paying.
networkeip155:8453
schemeexact
pay to0xE3244a21D0d68bFa78b7CAd8C3b8777aDFbB3188
methodPOST
last updated2026-11-11T05:00:17.465Z

Use it

Call it (an x402 client pays automatically)

curl -i https://mart402.com/v1/verify
# 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/x402-6af4f4df72b342b6

Search the whole marketplace from your agent (MCP)

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

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