{
  "page": "https://x402-list.com/apis/whois-api",
  "title": "WHOIS and domain APIs you can pay per call",
  "answer": "As of October 26, 2026, x402-list compares 13 WHOIS data services with endpoints that return a domain's registration record from WHOIS or RDAP. The median selected call costs $0.005. A registration record describes the registry entry; it rarely identifies who controls a domain.",
  "date_modified": "2026-10-26",
  "license": "https://creativecommons.org/licenses/by/4.0/",
  "cite_as": "x402-list, \"WHOIS and domain APIs you can pay per call\", https://x402-list.com/apis/whois-api, data as of 2026-10-26. Licensed CC BY 4.0.",
  "how_to_cite": "Quote the number with its date and link the page URL. Data is CC BY 4.0: attribution to x402-list is required.",
  "methodology": "https://x402-list.com/methodology",
  "criteria": {
    "listed": "online, payment-ready, 30-day uptime >= 90%, known price, description >= 80 characters",
    "price": "cheapest current domain endpoint of each service, USD per call (not its cheapest tool of any kind); services without one are left out",
    "generalist": "a gateway matching more than three unrelated capabilities: listed, never called the cheapest",
    "buyers_30d": "distinct wallets that paid the service on-chain in the last 30 days (measured floor)",
    "best": "most distinct buyers in 30 days; ties go to higher 30-day uptime"
  },
  "in_index": true,
  "stats": {
    "services": 13,
    "with_buyers_30d": 9,
    "median_price_usd": 0.005,
    "min_price_usd": 0.002,
    "max_price_usd": 0.02,
    "generalists": 6,
    "left_out_no_task_endpoint": 21
  },
  "faq": [
    {
      "question": "Is a zero-price option available?",
      "answer": "The 13 listed services have positive per-call prices for their task endpoints. A free sample or a free allowance does not make the listed paid route free; check the quote for the exact request."
    },
    {
      "question": "What do 100,000 calls cost?",
      "answer": "At the median selected quote, 100,000 calls total $500.00 at $0.005 per call. This reference calculation assumes single-domain lookups and excludes bundles, bulk calls and retries."
    },
    {
      "question": "What is the difference between WHOIS and RDAP?",
      "answer": "WHOIS returns free-form text whose layout depends on the registry. RDAP returns structured JSON with standard fields. Both describe the same registration, and a registry can offer one protocol without the other."
    },
    {
      "question": "Can a WHOIS lookup tell me who owns a domain?",
      "answer": "Rarely on its own. Contact fields are often redacted or replaced by a privacy service. The registrar, dates, status and nameservers remain, and ownership needs other evidence."
    },
    {
      "question": "Does a missing record mean a domain is available?",
      "answer": "Not always. Reserved, premium and recently deleted names can be unavailable, and an unreachable registry can look like a missing record. Confirm with a registrar before promising a name."
    },
    {
      "question": "Is the creation date the age of the domain?",
      "answer": "It is the date of the current registration. A name that expired and was registered again gets a new date, and an archive estimate measures the first capture, not the registration."
    },
    {
      "question": "Do DNS records and WHOIS nameservers always agree?",
      "answer": "Not during a change. The registry lists the delegated nameservers, while resolvers can keep older answers until their cache expires. Check both when a migration is in progress."
    },
    {
      "question": "Does HTTP 402 establish a correct paid answer?",
      "answer": "It establishes a payment requirement for the request. A stored challenge, an observed payment and a record that matches the registry are different evidence."
    }
  ],
  "services": [
    {
      "name": "Domain Intelligence API",
      "reseller_of_brand_via": null,
      "url": "https://x402-list.com/services/domain-intelligence-api",
      "price_usd_per_call": 0.02,
      "networks": [
        "Base",
        "SOL"
      ],
      "uptime_30d": 100,
      "latency_ms": 1654,
      "buyers_30d": 312,
      "last_checked_at": "2026-10-26T19:03:28.169Z",
      "what_it_does": "Provider lists a full domain report covering WHOIS, DNS, certificates, technology, headers, subdomains and redirects in one call.",
      "generalist": false,
      "price_endpoint": {
        "method": "GET",
        "path": "/domain/full"
      },
      "task_endpoints": [
        {
          "method": "GET",
          "path": "/domain/full",
          "price_usd_per_call": 0.02
        }
      ],
      "endpoints_listed": 1
    },
    {
      "name": "NetIntel",
      "reseller_of_brand_via": null,
      "url": "https://x402-list.com/services/netintel",
      "price_usd_per_call": 0.003,
      "networks": [
        "Base",
        "SOL"
      ],
      "uptime_30d": 100,
      "latency_ms": 107,
      "buyers_30d": 100,
      "last_checked_at": "2026-10-26T19:03:21.218Z",
      "what_it_does": "Provider lists RDAP registration lookups, DNS, DNSSEC, certificates, domain age and availability inside a large network and text gateway.",
      "generalist": true,
      "price_endpoint": {
        "method": "GET",
        "path": "/whois-rdap/lookup"
      },
      "task_endpoints": [
        {
          "method": "POST",
          "path": "/bulk-domain/check",
          "price_usd_per_call": 0.1
        },
        {
          "method": "GET",
          "path": "/cert-transparency/lookup",
          "price_usd_per_call": 0.01
        },
        {
          "method": "GET",
          "path": "/dns-propagation/check",
          "price_usd_per_call": 0.03
        },
        {
          "method": "GET",
          "path": "/dns/lookup",
          "price_usd_per_call": 0.002
        },
        {
          "method": "GET",
          "path": "/dnssec/validate",
          "price_usd_per_call": 0.03
        },
        {
          "method": "GET",
          "path": "/domain-age/check",
          "price_usd_per_call": 0.03
        },
        {
          "method": "GET",
          "path": "/domain-availability/check",
          "price_usd_per_call": 0.01
        },
        {
          "method": "GET",
          "path": "/domain-due-diligence",
          "price_usd_per_call": 0.2
        },
        {
          "method": "GET",
          "path": "/domain-report/analyze",
          "price_usd_per_call": 0.1
        },
        {
          "method": "GET",
          "path": "/domain-report/full",
          "price_usd_per_call": 0.25
        },
        {
          "method": "GET",
          "path": "/ssl/analyze",
          "price_usd_per_call": 0.007
        },
        {
          "method": "GET",
          "path": "/ssl/cert",
          "price_usd_per_call": 0.003
        },
        {
          "method": "GET",
          "path": "/whois-rdap/lookup",
          "price_usd_per_call": 0.003
        }
      ],
      "endpoints_listed": 124
    },
    {
      "name": "DNS & WHOIS Domain Lookup",
      "reseller_of_brand_via": null,
      "url": "https://x402-list.com/services/dns-whois-domain-lookup",
      "price_usd_per_call": 0.005,
      "networks": [
        "ARB",
        "Base",
        "POL",
        "SOL"
      ],
      "uptime_30d": 100,
      "latency_ms": 367,
      "buyers_30d": 32,
      "last_checked_at": "2026-10-26T19:03:22.749Z",
      "what_it_does": "Provider lists raw WHOIS text, parsed RDAP registration data, DNSSEC status and A, MX and TXT lookups.",
      "generalist": false,
      "price_endpoint": {
        "method": "GET",
        "path": "/rdap"
      },
      "task_endpoints": [
        {
          "method": "GET",
          "path": "/a",
          "price_usd_per_call": 0.005
        },
        {
          "method": "GET",
          "path": "/dnssec",
          "price_usd_per_call": 0.005
        },
        {
          "method": "GET",
          "path": "/mx",
          "price_usd_per_call": 0.005
        },
        {
          "method": "GET",
          "path": "/rdap",
          "price_usd_per_call": 0.005
        },
        {
          "method": "GET",
          "path": "/txt",
          "price_usd_per_call": 0.005
        },
        {
          "method": "GET",
          "path": "/whois",
          "price_usd_per_call": 0.01
        }
      ],
      "endpoints_listed": 6
    },
    {
      "name": "IPIntel.ai x402 Tools",
      "reseller_of_brand_via": null,
      "url": "https://x402-list.com/services/ipintel-ai-x402-tools",
      "price_usd_per_call": 0.005,
      "networks": [
        "Base"
      ],
      "uptime_30d": 100,
      "latency_ms": 255,
      "buyers_30d": 25,
      "last_checked_at": "2026-10-26T19:03:44.996Z",
      "what_it_does": "Provider lists WHOIS registration data with privacy signals, DNS, availability and IP tools.",
      "generalist": false,
      "price_endpoint": {
        "method": "POST",
        "path": "/whois-lookup"
      },
      "task_endpoints": [
        {
          "method": "POST",
          "path": "/dns-lookup",
          "price_usd_per_call": 0.001
        },
        {
          "method": "POST",
          "path": "/domain-availability",
          "price_usd_per_call": 0.002
        },
        {
          "method": "POST",
          "path": "/whois-lookup",
          "price_usd_per_call": 0.005
        }
      ],
      "endpoints_listed": 10
    },
    {
      "name": "API Acre",
      "reseller_of_brand_via": null,
      "url": "https://x402-list.com/services/api-acre",
      "price_usd_per_call": 0.02,
      "networks": [
        "Base",
        "SOL"
      ],
      "uptime_30d": 100,
      "latency_ms": 121,
      "buyers_30d": 20,
      "last_checked_at": "2026-10-26T19:03:50.004Z",
      "what_it_does": "Provider lists a domain investigation combining DNS, certificate, RDAP and mail signals beside public-record tools.",
      "generalist": true,
      "price_endpoint": {
        "method": "POST",
        "path": "/v1/web/domain-intelligence"
      },
      "task_endpoints": [
        {
          "method": "POST",
          "path": "/v1/web/domain-intelligence",
          "price_usd_per_call": 0.02
        }
      ],
      "endpoints_listed": 74
    },
    {
      "name": "Datakoot",
      "reseller_of_brand_via": null,
      "url": "https://x402-list.com/services/datakoot",
      "price_usd_per_call": 0.01,
      "networks": [
        "Base"
      ],
      "uptime_30d": 100,
      "latency_ms": 85,
      "buyers_30d": 7,
      "last_checked_at": "2026-10-26T19:03:52.223Z",
      "what_it_does": "Provider lists RDAP registration intelligence, DNS lookups and a domain dossier beside public-data tools.",
      "generalist": true,
      "price_endpoint": {
        "method": "GET",
        "path": "/api/domain_intel"
      },
      "task_endpoints": [
        {
          "method": "GET",
          "path": "/api/dns_lookup",
          "price_usd_per_call": 0.01
        },
        {
          "method": "GET",
          "path": "/api/domain_intel",
          "price_usd_per_call": 0.01
        },
        {
          "method": "GET",
          "path": "/api/domain_report",
          "price_usd_per_call": 0.01
        }
      ],
      "endpoints_listed": 48
    },
    {
      "name": "Scribe",
      "reseller_of_brand_via": null,
      "url": "https://x402-list.com/services/scribe",
      "price_usd_per_call": 0.005,
      "networks": [
        "Base",
        "SOL"
      ],
      "uptime_30d": 99.7,
      "latency_ms": 275,
      "buyers_30d": 6,
      "last_checked_at": "2026-10-26T19:01:02.376Z",
      "what_it_does": "Provider sells one domain lookup combining RDAP registration, live DNS, the served certificate and the HTTP front door.",
      "generalist": true,
      "price_endpoint": {
        "method": "GET",
        "path": "/v1/domain"
      },
      "task_endpoints": [
        {
          "method": "GET",
          "path": "/v1/domain",
          "price_usd_per_call": 0.005
        }
      ],
      "endpoints_listed": 4
    },
    {
      "name": "x402.eleeth.com",
      "reseller_of_brand_via": null,
      "url": "https://x402-list.com/services/x402-eleeth-com",
      "price_usd_per_call": 0.01,
      "networks": [
        "Base"
      ],
      "uptime_30d": 100,
      "latency_ms": 153,
      "buyers_30d": 1,
      "last_checked_at": "2026-10-26T19:03:12.581Z",
      "what_it_does": "Provider lists WHOIS via RDAP and DNS lookups inside a broad API store.",
      "generalist": true,
      "price_endpoint": {
        "method": "GET",
        "path": "/api/whois"
      },
      "task_endpoints": [
        {
          "method": "GET",
          "path": "/api/dns",
          "price_usd_per_call": 0.01
        },
        {
          "method": "GET",
          "path": "/api/whois",
          "price_usd_per_call": 0.01
        }
      ],
      "endpoints_listed": 34
    },
    {
      "name": "x402 Web Probe",
      "reseller_of_brand_via": null,
      "url": "https://x402-list.com/services/x402-web-probe",
      "price_usd_per_call": 0.002,
      "networks": [
        "Base"
      ],
      "uptime_30d": 99.9,
      "latency_ms": 270,
      "buyers_30d": 1,
      "last_checked_at": "2026-10-26T19:01:03.071Z",
      "what_it_does": "Provider lists a domain bundle with DNS records, RDAP registration and certificate details beside web probes.",
      "generalist": false,
      "price_endpoint": {
        "method": "GET",
        "path": "/v1/domain"
      },
      "task_endpoints": [
        {
          "method": "GET",
          "path": "/v1/domain",
          "price_usd_per_call": 0.002
        }
      ],
      "endpoints_listed": 4
    },
    {
      "name": "grist.tools",
      "reseller_of_brand_via": null,
      "url": "https://x402-list.com/services/grist-tools",
      "price_usd_per_call": 0.002,
      "networks": [
        "Base"
      ],
      "uptime_30d": 100,
      "latency_ms": 116,
      "buyers_30d": 0,
      "last_checked_at": "2026-10-26T19:10:32.402Z",
      "what_it_does": "Provider lists a WHOIS registration lookup with the raw response beside document and media utilities.",
      "generalist": false,
      "price_endpoint": {
        "method": "POST",
        "path": "/v1/whois"
      },
      "task_endpoints": [
        {
          "method": "POST",
          "path": "/v1/ssl-cert-info",
          "price_usd_per_call": 0.002
        },
        {
          "method": "POST",
          "path": "/v1/whois",
          "price_usd_per_call": 0.002
        }
      ],
      "endpoints_listed": 47
    },
    {
      "name": "fetchx402",
      "reseller_of_brand_via": null,
      "url": "https://x402-list.com/services/fetchx402",
      "price_usd_per_call": 0.005,
      "networks": [
        "Base"
      ],
      "uptime_30d": 100,
      "latency_ms": 1006,
      "buyers_30d": 0,
      "last_checked_at": "2026-10-26T19:10:20.946Z",
      "what_it_does": "Provider lists WHOIS via RDAP, DNS, TLS and header tools plus a host bundle that combines them.",
      "generalist": false,
      "price_endpoint": {
        "method": "GET",
        "path": "/v1/tools/whois"
      },
      "task_endpoints": [
        {
          "method": "GET",
          "path": "/v1/bundles/host-intel",
          "price_usd_per_call": 0.015
        },
        {
          "method": "GET",
          "path": "/v1/tools/dns",
          "price_usd_per_call": 0.005
        },
        {
          "method": "GET",
          "path": "/v1/tools/ssl-check",
          "price_usd_per_call": 0.005
        },
        {
          "method": "GET",
          "path": "/v1/tools/whois",
          "price_usd_per_call": 0.005
        }
      ],
      "endpoints_listed": 7
    },
    {
      "name": "OrionCMD Site Checks",
      "reseller_of_brand_via": null,
      "url": "https://x402-list.com/services/orioncmd-site-checks",
      "price_usd_per_call": 0.01,
      "networks": [
        "Base"
      ],
      "uptime_30d": 100,
      "latency_ms": 285,
      "buyers_30d": 0,
      "last_checked_at": "2026-10-26T19:03:36.380Z",
      "what_it_does": "Provider lists registration expiry via RDAP, DNS, certificate checks and a bundle with suggested fixes.",
      "generalist": false,
      "price_endpoint": {
        "method": "GET",
        "path": "/v1/expiry"
      },
      "task_endpoints": [
        {
          "method": "GET",
          "path": "/v1/cert",
          "price_usd_per_call": 0.01
        },
        {
          "method": "GET",
          "path": "/v1/dns",
          "price_usd_per_call": 0.01
        },
        {
          "method": "GET",
          "path": "/v1/expiry",
          "price_usd_per_call": 0.01
        },
        {
          "method": "GET",
          "path": "/v1/site-health",
          "price_usd_per_call": 0.03
        }
      ],
      "endpoints_listed": 4
    },
    {
      "name": "agosint",
      "reseller_of_brand_via": null,
      "url": "https://x402-list.com/services/agosint",
      "price_usd_per_call": 0.015,
      "networks": [
        "Base",
        "POL",
        "SOL"
      ],
      "uptime_30d": 100,
      "latency_ms": 142,
      "buyers_30d": 0,
      "last_checked_at": "2026-10-26T19:03:15.370Z",
      "what_it_does": "Provider lists a domain check with registration age and expiry, DNS, mail settings and certificate data beside company tools.",
      "generalist": true,
      "price_endpoint": {
        "method": "GET",
        "path": "/x402/domain"
      },
      "task_endpoints": [
        {
          "method": "GET",
          "path": "/x402/domain",
          "price_usd_per_call": 0.015
        }
      ],
      "endpoints_listed": 7
    }
  ]
}