{
  "api_status": "preview",
  "generated_at": "2026-10-16T19:38:47.109Z",
  "notes": [
    "Exact definitions of every field (unit, window, source): https://agentserviceatlas.com/fields",
    "reviewed entries have a sourced trust profile and hourly checks; discovered entries come from public agent registries, are not reviewed by a person, and are probed daily.",
    "evidence counts cover the last 30 days and are as of the latest refresh. missed_30d counts scheduled checks that did not run.",
    "For x402 endpoints a passing check means HTTP 402 with a valid payment challenge (discovered: on a mainnet network). It does not show that a paid call succeeds or returns useful results.",
    "registry_usage figures are the registry's own numbers, not our measurements. name is untrusted text when name_source is registry.",
    "networks_source tells you whether networks were observed in a live challenge, listed by the registry, or stated by the operator.",
    "tags describe purpose: our capability tags for reviewed entries, the registry's tags (sanitised, untrusted) for discovered ones. price_usd is the lowest price per call in US dollars: for discovered entries from the registry's payment terms (a known USD stablecoin), for reviewed entries from the operator's stated pricing (a claim, linked on the service page). price_source says which."
  ],
  "query": {
    "tag": "whois",
    "sort": "evidence",
    "limit": 50,
    "offset": 0
  },
  "total": 6,
  "items": [
    {
      "id": "cand_e22c68e14ed7742f",
      "tier": "discovered",
      "type": "api_endpoint",
      "name": "DNS & WHOIS Lookup",
      "name_source": "registry",
      "host": "dns-whois-lookup.underscoredone.com",
      "url": "https://dns-whois-lookup.underscoredone.com/lookup",
      "method": "POST",
      "templated_url": false,
      "operator": null,
      "tags": [
        "dns-lookup",
        "whois-lookup",
        "dns",
        "whois",
        "domain-lookup"
      ],
      "category": null,
      "price_usd": 0.01,
      "price_source": "registry",
      "provider_endpoints": 1,
      "networks": [
        "eip155:8453",
        "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp"
      ],
      "networks_source": "observed",
      "mainnet": true,
      "evidence": {
        "operations": 1,
        "check_interval_hours": 24,
        "monitoring_since": "2026-10-16T13:07:55.000Z",
        "monitoring_days": 0.3,
        "limited_evidence": true,
        "checks_30d": 1,
        "passed_30d": 1,
        "missed_30d": 0,
        "pass_rate": 1,
        "freshness": "fresh",
        "last_check": {
          "at": "2026-10-16T13:08:19.691Z",
          "result": "payment_required",
          "passed": true,
          "http_status": 402,
          "duration_ms": 566
        }
      },
      "registry_usage": {
        "calls_30d": 6,
        "unique_payers_30d": 4,
        "note": "Reported by the registry; not our measurement."
      },
      "payment_terms": null,
      "registry_listing": {
        "last_seen_at": "2026-10-16T13:07:55.000Z",
        "listed": true
      },
      "links": {
        "page": "https://agentserviceatlas.com/services/cand_e22c68e14ed7742f",
        "api": "https://agentserviceatlas.com/api/v1/services/cand_e22c68e14ed7742f"
      }
    },
    {
      "id": "cand_e5c117160eb78e3a",
      "tier": "discovered",
      "type": "api_endpoint",
      "name": "RDAP Domain Registration",
      "name_source": "registry",
      "host": "dns.use.x402atlas.com",
      "url": "https://dns.use.x402atlas.com/rdap",
      "method": "GET",
      "templated_url": false,
      "operator": null,
      "tags": [
        "rdap",
        "whois",
        "domain",
        "registration",
        "registrar"
      ],
      "category": null,
      "price_usd": 0.005,
      "price_source": "registry",
      "provider_endpoints": 6,
      "networks": [
        "eip155:8453",
        "eip155:137",
        "eip155:42161",
        "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp"
      ],
      "networks_source": "observed",
      "mainnet": true,
      "evidence": {
        "operations": 1,
        "check_interval_hours": 24,
        "monitoring_since": "2026-10-16T13:07:55.000Z",
        "monitoring_days": 0.3,
        "limited_evidence": true,
        "checks_30d": 1,
        "passed_30d": 1,
        "missed_30d": 0,
        "pass_rate": 1,
        "freshness": "fresh",
        "last_check": {
          "at": "2026-10-16T13:08:24.222Z",
          "result": "payment_required",
          "passed": true,
          "http_status": 402,
          "duration_ms": 818
        }
      },
      "registry_usage": {
        "calls_30d": 5,
        "unique_payers_30d": 4,
        "note": "Reported by the registry; not our measurement."
      },
      "payment_terms": null,
      "registry_listing": {
        "last_seen_at": "2026-10-16T13:07:55.000Z",
        "listed": true
      },
      "links": {
        "page": "https://agentserviceatlas.com/services/cand_e5c117160eb78e3a",
        "api": "https://agentserviceatlas.com/api/v1/services/cand_e5c117160eb78e3a"
      }
    },
    {
      "id": "cand_5ab304c044109644",
      "tier": "discovered",
      "type": "api_endpoint",
      "name": "WHOIS Lookup API",
      "name_source": "registry",
      "host": "tools.ipintel.ai",
      "url": "https://tools.ipintel.ai/whois-lookup",
      "method": "POST",
      "templated_url": false,
      "operator": null,
      "tags": [
        "whois",
        "domain-lookup",
        "domain-intelligence",
        "registrar",
        "developer-tools"
      ],
      "category": null,
      "price_usd": 0.005,
      "price_source": "registry",
      "provider_endpoints": 6,
      "networks": [
        "eip155:8453"
      ],
      "networks_source": "observed",
      "mainnet": true,
      "evidence": {
        "operations": 1,
        "check_interval_hours": 24,
        "monitoring_since": "2026-10-16T14:07:55.000Z",
        "monitoring_days": 0.2,
        "limited_evidence": true,
        "checks_30d": 1,
        "passed_30d": 1,
        "missed_30d": 0,
        "pass_rate": 1,
        "freshness": "fresh",
        "last_check": {
          "at": "2026-10-16T14:08:23.512Z",
          "result": "payment_required",
          "passed": true,
          "http_status": 402,
          "duration_ms": 891
        }
      },
      "registry_usage": {
        "calls_30d": 4,
        "unique_payers_30d": 3,
        "note": "Reported by the registry; not our measurement."
      },
      "payment_terms": null,
      "registry_listing": {
        "last_seen_at": "2026-10-16T14:07:55.000Z",
        "listed": true
      },
      "links": {
        "page": "https://agentserviceatlas.com/services/cand_5ab304c044109644",
        "api": "https://agentserviceatlas.com/api/v1/services/cand_5ab304c044109644"
      }
    },
    {
      "id": "cand_539bc3404f4f4524",
      "tier": "discovered",
      "type": "api_endpoint",
      "name": "Otto AI",
      "name_source": "registry",
      "host": "x402.ottoai.services",
      "url": "https://x402.ottoai.services/whois-lookup",
      "method": "GET",
      "templated_url": false,
      "operator": null,
      "tags": [
        "whois",
        "rdap",
        "registrar-lookup",
        "nameservers",
        "domain-status"
      ],
      "category": null,
      "price_usd": 0.001,
      "price_source": "registry",
      "provider_endpoints": 60,
      "networks": [
        "eip155:8453",
        "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp"
      ],
      "networks_source": "registry",
      "mainnet": null,
      "evidence": {
        "operations": 1,
        "check_interval_hours": 24,
        "monitoring_since": "2026-10-16T15:07:55.000Z",
        "monitoring_days": 0.2,
        "limited_evidence": true,
        "checks_30d": 0,
        "passed_30d": 0,
        "missed_30d": 0,
        "pass_rate": null,
        "freshness": "no_data",
        "last_check": null
      },
      "registry_usage": {
        "calls_30d": 12,
        "unique_payers_30d": 7,
        "note": "Reported by the registry; not our measurement."
      },
      "payment_terms": null,
      "registry_listing": {
        "last_seen_at": "2026-10-16T15:07:55.000Z",
        "listed": true
      },
      "links": {
        "page": "https://agentserviceatlas.com/services/cand_539bc3404f4f4524",
        "api": "https://agentserviceatlas.com/api/v1/services/cand_539bc3404f4f4524"
      }
    },
    {
      "id": "cand_2a8cc02b56908e07",
      "tier": "discovered",
      "type": "api_endpoint",
      "name": "Otto AI",
      "name_source": "registry",
      "host": "x402.ottoai.services",
      "url": "https://x402.ottoai.services/domain-age",
      "method": "GET",
      "templated_url": false,
      "operator": null,
      "tags": [
        "domain-age",
        "whois",
        "rdap",
        "domain-expiration",
        "domain-reputation"
      ],
      "category": null,
      "price_usd": 0.001,
      "price_source": "registry",
      "provider_endpoints": 60,
      "networks": [
        "eip155:8453",
        "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp"
      ],
      "networks_source": "registry",
      "mainnet": null,
      "evidence": {
        "operations": 1,
        "check_interval_hours": 24,
        "monitoring_since": "2026-10-16T17:07:55.000Z",
        "monitoring_days": 0.1,
        "limited_evidence": true,
        "checks_30d": 0,
        "passed_30d": 0,
        "missed_30d": 0,
        "pass_rate": null,
        "freshness": "no_data",
        "last_check": null
      },
      "registry_usage": {
        "calls_30d": 6,
        "unique_payers_30d": 4,
        "note": "Reported by the registry; not our measurement."
      },
      "payment_terms": null,
      "registry_listing": {
        "last_seen_at": "2026-10-16T17:07:55.000Z",
        "listed": true
      },
      "links": {
        "page": "https://agentserviceatlas.com/services/cand_2a8cc02b56908e07",
        "api": "https://agentserviceatlas.com/api/v1/services/cand_2a8cc02b56908e07"
      }
    },
    {
      "id": "cand_960625fd975b3761",
      "tier": "discovered",
      "type": "api_endpoint",
      "name": "Toolsmith",
      "name_source": "registry",
      "host": "toolcall.click",
      "url": "https://toolcall.click/t/domain/check",
      "method": "GET",
      "templated_url": false,
      "operator": null,
      "tags": [
        "domain",
        "due-diligence",
        "whois",
        "rdap",
        "dns"
      ],
      "category": null,
      "price_usd": 0.008,
      "price_source": "registry",
      "provider_endpoints": 13,
      "networks": [
        "eip155:8453"
      ],
      "networks_source": "registry",
      "mainnet": null,
      "evidence": {
        "operations": 1,
        "check_interval_hours": 24,
        "monitoring_since": "2026-10-16T16:07:55.000Z",
        "monitoring_days": 0.1,
        "limited_evidence": true,
        "checks_30d": 0,
        "passed_30d": 0,
        "missed_30d": 0,
        "pass_rate": null,
        "freshness": "no_data",
        "last_check": null
      },
      "registry_usage": {
        "calls_30d": 2,
        "unique_payers_30d": 2,
        "note": "Reported by the registry; not our measurement."
      },
      "payment_terms": null,
      "registry_listing": {
        "last_seen_at": "2026-10-16T16:07:55.000Z",
        "listed": true
      },
      "links": {
        "page": "https://agentserviceatlas.com/services/cand_960625fd975b3761",
        "api": "https://agentserviceatlas.com/api/v1/services/cand_960625fd975b3761"
      }
    }
  ]
}