{
  "company": "Doormat Capital",
  "tool": "payverify — Base USDC payment verification",
  "for_whom": "Anyone accepting USDC-on-Base payments (on-chain sellers, x402/agent-commerce builders, buyers proving a payment) who needs to confirm a transfer landed without running their own node or paying for a block-explorer API key.",
  "endpoints": {
    "GET /verify?tx=0x...": "FREE — verify any Base USDC transaction: sender, recipient, amount, confirmation, age.",
    "GET /statement?address=0x...&limit=10": "paid, 0.05 USDC (introductory price through 17 Oct 2026; then 0.15 USDC) per call — recent USDC transfers in/out of an address, newest first.",
    "POST /mcp": "FREE — MCP (Model Context Protocol) server, Streamable HTTP / JSON-RPC 2.0. Tool: verify_base_usdc_tx (same as /verify). See /.well-known/mcp/server-card.json."
  },
  "mcp": {
    "endpoint": "/mcp",
    "transport": "streamable-http",
    "server_card": "/.well-known/mcp/server-card.json"
  },
  "payment_method_for_statement": "X-PAYMENT-TX header: send USDC on Base to 0x202B73254C28fA012BD11ff50425D94534b95594, then call /statement with header 'X-PAYMENT-TX: <your tx hash>' -- or, from a browser with no way to set a header, add '&tx=<your tx hash>' to the URL instead. Verified read-only via Base's public RPC, no facilitator, no account.",
  "how_to_pay": [
    "1. Send 0.05 USDC on Base (network: base) to 0x202B73254C28fA012BD11ff50425D94534b95594",
    "2. Wait for that transaction to confirm (a few seconds on Base)",
    "3. Call GET /statement?address=0x...&limit=10 again, this time with header 'X-PAYMENT-TX: <your transaction hash>' -- or, if you're just pasting a link in a browser and can't set a header, add '&tx=<your transaction hash>' to the URL instead, same effect."
  ],
  "curl_example": "curl -H \"X-PAYMENT-TX: <your-tx-hash-here>\" \"https://payverify.sebastiaan-ba3.workers.dev/statement?address=0xTheirAddress&limit=10\"",
  "pay_to": "0x202B73254C28fA012BD11ff50425D94534b95594",
  "network": "base",
  "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
  "other_products": {
    "note": "We also sell a Lighter perpetuals funding/volume snapshot and a 5-chain wallet token scan on a sister Worker.",
    "url": "https://signals.sebastiaan-ba3.workers.dev"
  },
  "contact": "t.me/doormatcapitalbot"
}