{
  "api_status": "preview",
  "generated_at": "2026-10-17T04:01:19.534Z",
  "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 hourly to monthly depending on usage (schedule/1; see evidence.schedule_tier).",
    "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": "email-validation",
    "sort": "evidence",
    "limit": 50,
    "offset": 0
  },
  "total": 13,
  "items": [
    {
      "id": "cand_6ae0ad438b1ccbd3",
      "tier": "discovered",
      "type": "api_endpoint",
      "name": "Resolve402",
      "name_source": "registry",
      "host": "resolve402.dev",
      "url": "https://resolve402.dev/api/verify-email",
      "method": "GET",
      "templated_url": false,
      "operator": null,
      "tags": [
        "email",
        "email-verification",
        "email-validation",
        "verify-email",
        "disposable-email"
      ],
      "category": null,
      "price_usd": 0.003,
      "price_source": "registry",
      "provider_endpoints": 10,
      "networks": [
        "eip155:8453",
        "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp"
      ],
      "networks_source": "observed",
      "payment_protocols": [
        "x402"
      ],
      "mainnet": true,
      "evidence": {
        "operations": 1,
        "check_interval_hours": 24,
        "schedule_tier": "daily",
        "monitoring_since": "2026-10-17T02:15:47.000Z",
        "monitoring_days": 0.1,
        "limited_evidence": true,
        "checks_30d": 1,
        "passed_30d": 1,
        "missed_30d": 0,
        "pass_rate": 1,
        "freshness": "fresh",
        "last_check": {
          "at": "2026-10-17T02:51:08.427Z",
          "result": "payment_required",
          "passed": true,
          "http_status": 402,
          "duration_ms": 235
        }
      },
      "registry_usage": {
        "calls_30d": 14,
        "unique_payers_30d": 6,
        "note": "Reported by the registry; not our measurement."
      },
      "payment_terms": {
        "current_since": "2026-10-17T02:51:08.427Z",
        "changes_30d": 0,
        "changes_90d": 0,
        "pay_to_changes_90d": 0,
        "last_change_at": null,
        "last_change_kinds": [],
        "window_start": "2026-10-17T02:15:47.000Z",
        "limited": true
      },
      "registry_listing": {
        "last_seen_at": "2026-10-17T02:15:47.000Z",
        "listed": true
      },
      "links": {
        "page": "https://agentserviceatlas.com/services/cand_6ae0ad438b1ccbd3",
        "api": "https://agentserviceatlas.com/api/v1/services/cand_6ae0ad438b1ccbd3"
      }
    },
    {
      "id": "cand_fc6d4d13a9c5e5dd",
      "tier": "discovered",
      "type": "api_endpoint",
      "name": "NetIntel",
      "name_source": "registry",
      "host": "netintel.dev",
      "url": "https://netintel.dev/email/verify",
      "method": "GET",
      "templated_url": false,
      "operator": null,
      "tags": [
        "email-verification",
        "verify-email",
        "email-deliverability",
        "email-validation",
        "mx-check"
      ],
      "category": null,
      "price_usd": 0.001,
      "price_source": "registry",
      "provider_endpoints": 109,
      "networks": [
        "eip155:8453",
        "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp"
      ],
      "networks_source": "observed",
      "payment_protocols": [],
      "mainnet": true,
      "evidence": {
        "operations": 1,
        "check_interval_hours": 24,
        "schedule_tier": "daily",
        "monitoring_since": "2026-10-16T17:07:55.000Z",
        "monitoring_days": 0.5,
        "limited_evidence": true,
        "checks_30d": 1,
        "passed_30d": 1,
        "missed_30d": 0,
        "pass_rate": 1,
        "freshness": "fresh",
        "last_check": {
          "at": "2026-10-17T02:21:03.155Z",
          "result": "payment_required",
          "passed": true,
          "http_status": 402,
          "duration_ms": 182
        }
      },
      "registry_usage": {
        "calls_30d": 36,
        "unique_payers_30d": 5,
        "note": "Reported by the registry; not our measurement."
      },
      "payment_terms": {
        "current_since": "2026-10-17T02:21:03.155Z",
        "changes_30d": 0,
        "changes_90d": 0,
        "pay_to_changes_90d": 0,
        "last_change_at": null,
        "last_change_kinds": [],
        "window_start": "2026-10-16T17:07:55.000Z",
        "limited": true
      },
      "registry_listing": {
        "last_seen_at": "2026-10-17T03:15:25.000Z",
        "listed": true
      },
      "links": {
        "page": "https://agentserviceatlas.com/services/cand_fc6d4d13a9c5e5dd",
        "api": "https://agentserviceatlas.com/api/v1/services/cand_fc6d4d13a9c5e5dd"
      }
    },
    {
      "id": "cand_b4422ce04cdb0e88",
      "tier": "discovered",
      "type": "api_endpoint",
      "name": "Sindri",
      "name_source": "registry",
      "host": "ppu43fkyhimq5fiqpmo42eh5ri0yypid.lambda-url.us-east-1.on.aws",
      "url": "https://ppu43fkyhimq5fiqpmo42eh5ri0yypid.lambda-url.us-east-1.on.aws/isEmail",
      "method": "POST",
      "templated_url": false,
      "operator": null,
      "tags": [
        "email-validation",
        "regex",
        "string-check"
      ],
      "category": null,
      "price_usd": 0.01,
      "price_source": "registry",
      "provider_endpoints": 63,
      "networks": [
        "eip155:8453",
        "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp"
      ],
      "networks_source": "observed",
      "payment_protocols": [],
      "mainnet": true,
      "evidence": {
        "operations": 1,
        "check_interval_hours": 24,
        "schedule_tier": "daily",
        "monitoring_since": "2026-10-16T15:07:55.000Z",
        "monitoring_days": 0.5,
        "limited_evidence": true,
        "checks_30d": 1,
        "passed_30d": 1,
        "missed_30d": 0,
        "pass_rate": 1,
        "freshness": "fresh",
        "last_check": {
          "at": "2026-10-17T02:15:57.673Z",
          "result": "payment_required",
          "passed": true,
          "http_status": 402,
          "duration_ms": 295
        }
      },
      "registry_usage": {
        "calls_30d": 6,
        "unique_payers_30d": 5,
        "note": "Reported by the registry; not our measurement."
      },
      "payment_terms": {
        "current_since": "2026-10-17T02:15:57.673Z",
        "changes_30d": 0,
        "changes_90d": 0,
        "pay_to_changes_90d": 0,
        "last_change_at": null,
        "last_change_kinds": [],
        "window_start": "2026-10-16T15:44:38.000Z",
        "limited": true
      },
      "registry_listing": {
        "last_seen_at": "2026-10-16T15:07:55.000Z",
        "listed": true
      },
      "links": {
        "page": "https://agentserviceatlas.com/services/cand_b4422ce04cdb0e88",
        "api": "https://agentserviceatlas.com/api/v1/services/cand_b4422ce04cdb0e88"
      }
    },
    {
      "id": "cand_b29cc38985c939c7",
      "tier": "discovered",
      "type": "api_endpoint",
      "name": "Email Validate",
      "name_source": "registry",
      "host": "agent-vending-production.up.railway.app",
      "url": "https://agent-vending-production.up.railway.app/v1/email-risk",
      "method": "POST",
      "templated_url": false,
      "operator": null,
      "tags": [
        "email-validate",
        "email-validation",
        "validate-email",
        "email-verification",
        "email-verify"
      ],
      "category": null,
      "price_usd": 0.001,
      "price_source": "registry",
      "provider_endpoints": 4,
      "networks": [
        "eip155:8453"
      ],
      "networks_source": "observed",
      "payment_protocols": [
        "x402"
      ],
      "mainnet": true,
      "evidence": {
        "operations": 1,
        "check_interval_hours": 24,
        "schedule_tier": "daily",
        "monitoring_since": "2026-10-17T02:05:47.000Z",
        "monitoring_days": 0.1,
        "limited_evidence": true,
        "checks_30d": 1,
        "passed_30d": 1,
        "missed_30d": 0,
        "pass_rate": 1,
        "freshness": "fresh",
        "last_check": {
          "at": "2026-10-17T02:46:02.802Z",
          "result": "payment_required",
          "passed": true,
          "http_status": 402,
          "duration_ms": 140
        }
      },
      "registry_usage": {
        "calls_30d": 10,
        "unique_payers_30d": 4,
        "note": "Reported by the registry; not our measurement."
      },
      "payment_terms": {
        "current_since": "2026-10-17T02:46:02.802Z",
        "changes_30d": 0,
        "changes_90d": 0,
        "pay_to_changes_90d": 0,
        "last_change_at": null,
        "last_change_kinds": [],
        "window_start": "2026-10-17T02:05:47.000Z",
        "limited": true
      },
      "registry_listing": {
        "last_seen_at": "2026-10-17T02:05:47.000Z",
        "listed": true
      },
      "links": {
        "page": "https://agentserviceatlas.com/services/cand_b29cc38985c939c7",
        "api": "https://agentserviceatlas.com/api/v1/services/cand_b29cc38985c939c7"
      }
    },
    {
      "id": "cand_75b6909013b953ba",
      "tier": "discovered",
      "type": "api_endpoint",
      "name": "EmailIQ",
      "name_source": "registry",
      "host": "emailiq.dev",
      "url": "https://emailiq.dev/email/intelligence",
      "method": "POST",
      "templated_url": false,
      "operator": null,
      "tags": [
        "verify-signup",
        "disposable",
        "dmarc",
        "email-validation",
        "x402"
      ],
      "category": null,
      "price_usd": 0.01,
      "price_source": "registry",
      "provider_endpoints": 1,
      "networks": [
        "eip155:8453"
      ],
      "networks_source": "observed",
      "payment_protocols": [
        "x402"
      ],
      "mainnet": true,
      "evidence": {
        "operations": 1,
        "check_interval_hours": 24,
        "schedule_tier": "daily",
        "monitoring_since": "2026-10-17T02:05:47.000Z",
        "monitoring_days": 0.1,
        "limited_evidence": true,
        "checks_30d": 1,
        "passed_30d": 1,
        "missed_30d": 0,
        "pass_rate": 1,
        "freshness": "fresh",
        "last_check": {
          "at": "2026-10-17T02:45:59.550Z",
          "result": "payment_required",
          "passed": true,
          "http_status": 402,
          "duration_ms": 526
        }
      },
      "registry_usage": {
        "calls_30d": 7,
        "unique_payers_30d": 4,
        "note": "Reported by the registry; not our measurement."
      },
      "payment_terms": {
        "current_since": "2026-10-17T02:45:59.550Z",
        "changes_30d": 0,
        "changes_90d": 0,
        "pay_to_changes_90d": 0,
        "last_change_at": null,
        "last_change_kinds": [],
        "window_start": "2026-10-17T02:05:47.000Z",
        "limited": true
      },
      "registry_listing": {
        "last_seen_at": "2026-10-17T03:35:25.000Z",
        "listed": true
      },
      "links": {
        "page": "https://agentserviceatlas.com/services/cand_75b6909013b953ba",
        "api": "https://agentserviceatlas.com/api/v1/services/cand_75b6909013b953ba"
      }
    },
    {
      "id": "cand_9563b987b6fd4917",
      "tier": "discovered",
      "type": "api_endpoint",
      "name": "Rooms by Aurmada",
      "name_source": "registry",
      "host": "rooms.aurmada.com",
      "url": "https://rooms.aurmada.com/x402/v1/email/check",
      "method": "GET",
      "templated_url": false,
      "operator": null,
      "tags": [
        "email",
        "email-validation",
        "email-verification",
        "validation",
        "mx"
      ],
      "category": null,
      "price_usd": 0.001,
      "price_source": "registry",
      "provider_endpoints": 20,
      "networks": [
        "eip155:8453"
      ],
      "networks_source": "observed",
      "payment_protocols": [
        "x402"
      ],
      "mainnet": true,
      "evidence": {
        "operations": 1,
        "check_interval_hours": 24,
        "schedule_tier": "daily",
        "monitoring_since": "2026-10-17T02:25:25.000Z",
        "monitoring_days": 0.1,
        "limited_evidence": true,
        "checks_30d": 1,
        "passed_30d": 1,
        "missed_30d": 0,
        "pass_rate": 1,
        "freshness": "fresh",
        "last_check": {
          "at": "2026-10-17T03:25:49.429Z",
          "result": "payment_required",
          "passed": true,
          "http_status": 402,
          "duration_ms": 531
        }
      },
      "registry_usage": {
        "calls_30d": 8,
        "unique_payers_30d": 4,
        "note": "Reported by the registry; not our measurement."
      },
      "payment_terms": {
        "current_since": "2026-10-17T03:25:49.429Z",
        "changes_30d": 0,
        "changes_90d": 0,
        "pay_to_changes_90d": 0,
        "last_change_at": null,
        "last_change_kinds": [],
        "window_start": "2026-10-17T02:25:25.000Z",
        "limited": true
      },
      "registry_listing": {
        "last_seen_at": "2026-10-17T02:25:25.000Z",
        "listed": true
      },
      "links": {
        "page": "https://agentserviceatlas.com/services/cand_9563b987b6fd4917",
        "api": "https://agentserviceatlas.com/api/v1/services/cand_9563b987b6fd4917"
      }
    },
    {
      "id": "cand_005f523416293082",
      "tier": "discovered",
      "type": "api_endpoint",
      "name": "Email Validate API",
      "name_source": "registry",
      "host": "tools.ipintel.ai",
      "url": "https://tools.ipintel.ai/email-validate",
      "method": "POST",
      "templated_url": false,
      "operator": null,
      "tags": [
        "email-validation",
        "deliverability",
        "lead-verification",
        "contact-data",
        "risk-scoring"
      ],
      "category": null,
      "price_usd": 0.004,
      "price_source": "registry",
      "provider_endpoints": 9,
      "networks": [
        "eip155:8453"
      ],
      "networks_source": "observed",
      "payment_protocols": [
        "x402"
      ],
      "mainnet": true,
      "evidence": {
        "operations": 1,
        "check_interval_hours": 24,
        "schedule_tier": "daily",
        "monitoring_since": "2026-10-17T02:15:47.000Z",
        "monitoring_days": 0.1,
        "limited_evidence": true,
        "checks_30d": 1,
        "passed_30d": 1,
        "missed_30d": 0,
        "pass_rate": 1,
        "freshness": "fresh",
        "last_check": {
          "at": "2026-10-17T02:51:08.316Z",
          "result": "payment_required",
          "passed": true,
          "http_status": 402,
          "duration_ms": 275
        }
      },
      "registry_usage": {
        "calls_30d": 4,
        "unique_payers_30d": 3,
        "note": "Reported by the registry; not our measurement."
      },
      "payment_terms": {
        "current_since": "2026-10-17T02:51:08.316Z",
        "changes_30d": 0,
        "changes_90d": 0,
        "pay_to_changes_90d": 0,
        "last_change_at": null,
        "last_change_kinds": [],
        "window_start": "2026-10-17T02:15:47.000Z",
        "limited": true
      },
      "registry_listing": {
        "last_seen_at": "2026-10-17T02:15:47.000Z",
        "listed": true
      },
      "links": {
        "page": "https://agentserviceatlas.com/services/cand_005f523416293082",
        "api": "https://agentserviceatlas.com/api/v1/services/cand_005f523416293082"
      }
    },
    {
      "id": "cand_6553967ab7bb46d8",
      "tier": "discovered",
      "type": "api_endpoint",
      "name": "Email address check",
      "name_source": "registry",
      "host": "flat-rate-llm.kikoribera03.workers.dev",
      "url": "https://flat-rate-llm.kikoribera03.workers.dev/v1/red/email-check",
      "method": "GET",
      "templated_url": false,
      "operator": null,
      "tags": [
        "email-validation",
        "email-verification",
        "verify-email",
        "email-checker",
        "mx-record"
      ],
      "category": null,
      "price_usd": 0.005,
      "price_source": "registry",
      "provider_endpoints": 49,
      "networks": [
        "eip155:8453",
        "eip155:137",
        "eip155:42161"
      ],
      "networks_source": "observed",
      "payment_protocols": [],
      "mainnet": true,
      "evidence": {
        "operations": 1,
        "check_interval_hours": 24,
        "schedule_tier": "daily",
        "monitoring_since": "2026-10-16T19:07:55.000Z",
        "monitoring_days": 0.4,
        "limited_evidence": true,
        "checks_30d": 1,
        "passed_30d": 1,
        "missed_30d": 0,
        "pass_rate": 1,
        "freshness": "fresh",
        "last_check": {
          "at": "2026-10-16T19:08:19.976Z",
          "result": "payment_required",
          "passed": true,
          "http_status": 402,
          "duration_ms": 443
        }
      },
      "registry_usage": {
        "calls_30d": 3,
        "unique_payers_30d": 3,
        "note": "Reported by the registry; not our measurement."
      },
      "payment_terms": {
        "current_since": "2026-10-16T19:08:19.976Z",
        "changes_30d": 0,
        "changes_90d": 0,
        "pay_to_changes_90d": 0,
        "last_change_at": null,
        "last_change_kinds": [],
        "window_start": "2026-10-16T19:07:55.000Z",
        "limited": true
      },
      "registry_listing": {
        "last_seen_at": "2026-10-16T19:07:55.000Z",
        "listed": true
      },
      "links": {
        "page": "https://agentserviceatlas.com/services/cand_6553967ab7bb46d8",
        "api": "https://agentserviceatlas.com/api/v1/services/cand_6553967ab7bb46d8"
      }
    },
    {
      "id": "cand_3476bb76891f7d38",
      "tier": "discovered",
      "type": "api_endpoint",
      "name": "HubVibe",
      "name_source": "registry",
      "host": "hubvibe-io.com",
      "url": "https://hubvibe-io.com/work/email/verify",
      "method": "POST",
      "templated_url": false,
      "operator": null,
      "tags": [
        "email-verification",
        "email-validation",
        "deliverability",
        "disposable-email",
        "lead-validation"
      ],
      "category": null,
      "price_usd": 0.02,
      "price_source": "registry",
      "provider_endpoints": 43,
      "networks": [
        "eip155:8453",
        "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp"
      ],
      "networks_source": "observed",
      "payment_protocols": [
        "x402",
        "mpp"
      ],
      "mainnet": true,
      "evidence": {
        "operations": 1,
        "check_interval_hours": 24,
        "schedule_tier": "daily",
        "monitoring_since": "2026-10-17T02:30:25.000Z",
        "monitoring_days": 0.1,
        "limited_evidence": true,
        "checks_30d": 1,
        "passed_30d": 1,
        "missed_30d": 0,
        "pass_rate": 1,
        "freshness": "fresh",
        "last_check": {
          "at": "2026-10-17T03:05:57.004Z",
          "result": "payment_required",
          "passed": true,
          "http_status": 402,
          "duration_ms": 160
        }
      },
      "registry_usage": {
        "calls_30d": 3,
        "unique_payers_30d": 3,
        "note": "Reported by the registry; not our measurement."
      },
      "payment_terms": {
        "current_since": "2026-10-17T03:05:57.004Z",
        "changes_30d": 0,
        "changes_90d": 0,
        "pay_to_changes_90d": 0,
        "last_change_at": null,
        "last_change_kinds": [],
        "window_start": "2026-10-17T02:30:25.000Z",
        "limited": true
      },
      "registry_listing": {
        "last_seen_at": "2026-10-17T02:30:25.000Z",
        "listed": true
      },
      "links": {
        "page": "https://agentserviceatlas.com/services/cand_3476bb76891f7d38",
        "api": "https://agentserviceatlas.com/api/v1/services/cand_3476bb76891f7d38"
      }
    },
    {
      "id": "cand_dfeafa1ef465879e",
      "tier": "discovered",
      "type": "api_endpoint",
      "name": "Qonoro Email Validator",
      "name_source": "registry",
      "host": "api.qonoro.ai",
      "url": "https://api.qonoro.ai/v1/email/validate",
      "method": "POST",
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        "data-quality",
        "b2b",
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    {
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    },
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}