{
  "company": "Doormat Capital",
  "tool": "llmstxt-check — validator and draft-generator for llms.txt",
  "for_whom": "Anyone publishing or maintaining an llms.txt file for their site, and anyone curious whether an existing one is spec-correct.",
  "spec": "https://llmstxt.org/",
  "endpoints": {
    "GET /check?url=example.com": "FREE — fetch and validate that domain's /llms.txt against the spec. Returns pass/fail with errors and warnings.",
    "GET /generate?url=example.com": "paid, 0.03 USDC per call — draft a starter llms.txt from the site's homepage (title, description, curated links)."
  },
  "payment_method_for_generate": "X-PAYMENT-TX header: send USDC on Base to 0x202B73254C28fA012BD11ff50425D94534b95594, then call /generate 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 0.03 USDC on Base (network: base) to 0x202B73254C28fA012BD11ff50425D94534b95594",
    "2. Wait for that transaction to confirm (a few seconds on Base)",
    "3. Call GET /generate?url=example.com again, this time with header 'X-PAYMENT-TX: <your transaction hash>'"
  ],
  "pay_to": "0x202B73254C28fA012BD11ff50425D94534b95594",
  "network": "base",
  "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
  "other_products": {
    "note": "We also run a Base USDC payment verifier, an x402 endpoint conformance linter, and a webhook inspector.",
    "urls": [
      "https://payverify.sebastiaan-ba3.workers.dev",
      "https://x402lint.sebastiaan-ba3.workers.dev",
      "https://hookbin.sebastiaan-ba3.workers.dev"
    ]
  },
  "contact": "t.me/doormatcapitalbot"
}