{
  "id": "api:x402-e76bbd422989de22",
  "kind": "api",
  "name": "toll402.dev/v1/t/fn_at_validate",
  "description": "Offline validator for an Austrian Firmenbuchnummer (FN), the company register number. Normalizes the numeric part (1-6 digits, left-padded to 6 for calculation), computes the modulo-11 check letter using weights 2,1,2,1,2,1 (Luhn-style digit reduction for products >=9 by subtracting 9) and the standard letter table (0=p,1=a,2=b,3=c,4=d,5=e,6=f,7=g,8=h,9=i,10=k), and compares it to the supplied check letter.",
  "category": "x402",
  "url": "https://toll402.dev/v1/t/fn_at_validate",
  "price": null,
  "x402": true,
  "meta": {
    "network": "eip155:8453",
    "scheme": "exact",
    "pay_to": "0x318d34fa0bd69eff17fac648d2df8cf7a88b3dbe",
    "method": "POST",
    "last_updated": "2026-11-11T15:58:16.25Z"
  },
  "trust": {
    "verified": true,
    "uptime_pct": 100,
    "latency_ms": 370,
    "checks": 1
  }
}