{
  "api_status": "preview",
  "generated_at": "2026-10-17T05:45:21.266Z",
  "notes": [
    "Exact definitions of every field (unit, window, source): https://agentserviceatlas.com/fields",
    "tier says how a service was added, not a rating: reviewed entries come from our own listing files, with operator statements 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": "ean",
    "sort": "evidence",
    "limit": 50,
    "offset": 0
  },
  "total": 8,
  "items": [
    {
      "id": "cand_93d028570b48dd65",
      "tier": "discovered",
      "type": "api_endpoint",
      "name": "Barcode generator | Vextorium",
      "name_source": "registry",
      "host": "api.vextorium.com",
      "url": "https://api.vextorium.com/v1/barcode-generate",
      "method": "POST",
      "templated_url": false,
      "operator": null,
      "tags": [
        "barcode",
        "ean",
        "labels",
        "ecommerce",
        "generator"
      ],
      "category": null,
      "price_usd": 0.003,
      "price_source": "registry",
      "provider_endpoints": 599,
      "networks": [
        "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "eip155:8453",
        "eip155:137",
        "eip155:10",
        "eip155:5042",
        "xrpl:0"
      ],
      "networks_source": "observed",
      "payment_protocols": [
        "x402"
      ],
      "mainnet": true,
      "evidence": {
        "operations": 1,
        "check_interval_hours": 24,
        "check_interval": "daily",
        "check_interval_rule": "Daily: 5 to 99 payers, and every new service until it has been probed 3 times.",
        "schedule_tier": "daily",
        "monitoring_since": "2026-10-17T02:40:25.000Z",
        "monitoring_days": 0.1,
        "limited_evidence": true,
        "checks_30d": 1,
        "passed_30d": 1,
        "missed_30d": 0,
        "pass_rate": 1,
        "freshness": "fresh",
        "last_check": {
          "at": "2026-10-17T05:16:02.818Z",
          "result": "payment_required",
          "passed": true,
          "http_status": 402,
          "duration_ms": 386
        }
      },
      "registry_usage": {
        "calls_30d": 4,
        "unique_payers_30d": 4,
        "note": "Reported by the registry; not our measurement."
      },
      "payment_terms": {
        "current_since": "2026-10-17T05:16:02.818Z",
        "changes_30d": 0,
        "changes_90d": 0,
        "pay_to_changes_90d": 0,
        "last_change_at": null,
        "last_change_kinds": [],
        "window_start": "2026-10-17T02:40:25.000Z",
        "limited": true
      },
      "registry_listing": {
        "last_seen_at": "2026-10-17T03:45:25.000Z",
        "listed": true
      },
      "links": {
        "page": "https://agentserviceatlas.com/services/cand_93d028570b48dd65",
        "api": "https://agentserviceatlas.com/api/v1/services/cand_93d028570b48dd65"
      }
    },
    {
      "id": "cand_8828e9005dabde6e",
      "tier": "discovered",
      "type": "api_endpoint",
      "name": "Barcode Generator",
      "name_source": "registry",
      "host": "agentsvc.io",
      "url": "https://agentsvc.io/api/v1/proxy/barcode",
      "method": "POST",
      "templated_url": false,
      "operator": null,
      "tags": [
        "barcode",
        "ean",
        "code128",
        "png",
        "label"
      ],
      "category": null,
      "price_usd": 0.0025,
      "price_source": "registry",
      "provider_endpoints": 123,
      "networks": [
        "eip155:8453",
        "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "eip155:137",
        "eip155:42161"
      ],
      "networks_source": "observed",
      "payment_protocols": [
        "x402"
      ],
      "mainnet": true,
      "evidence": {
        "operations": 1,
        "check_interval_hours": 24,
        "check_interval": "daily",
        "check_interval_rule": "Daily: 5 to 99 payers, and every new service until it has been probed 3 times.",
        "schedule_tier": "daily",
        "monitoring_since": "2026-10-17T02:45:25.000Z",
        "monitoring_days": 0.1,
        "limited_evidence": true,
        "checks_30d": 1,
        "passed_30d": 1,
        "missed_30d": 0,
        "pass_rate": 1,
        "freshness": "fresh",
        "last_check": {
          "at": "2026-10-17T04:21:00.222Z",
          "result": "payment_required",
          "passed": true,
          "http_status": 402,
          "duration_ms": 339
        }
      },
      "registry_usage": {
        "calls_30d": 11,
        "unique_payers_30d": 3,
        "note": "Reported by the registry; not our measurement."
      },
      "payment_terms": {
        "current_since": "2026-10-17T04:21:00.222Z",
        "changes_30d": 0,
        "changes_90d": 0,
        "pay_to_changes_90d": 0,
        "last_change_at": null,
        "last_change_kinds": [],
        "window_start": "2026-10-17T02:45:25.000Z",
        "limited": true
      },
      "registry_listing": {
        "last_seen_at": "2026-10-17T02:45:25.000Z",
        "listed": true
      },
      "links": {
        "page": "https://agentserviceatlas.com/services/cand_8828e9005dabde6e",
        "api": "https://agentserviceatlas.com/api/v1/services/cand_8828e9005dabde6e"
      }
    },
    {
      "id": "cand_063f82fc8888c6fa",
      "tier": "discovered",
      "type": "api_endpoint",
      "name": "Product Lookup by Barcode",
      "name_source": "registry",
      "host": "agentsvc.io",
      "url": "https://agentsvc.io/api/v1/proxy/product-lookup",
      "method": "POST",
      "templated_url": false,
      "operator": null,
      "tags": [
        "barcode",
        "ean",
        "product",
        "nutrition",
        "food"
      ],
      "category": null,
      "price_usd": 0.005,
      "price_source": "registry",
      "provider_endpoints": 123,
      "networks": [
        "eip155:8453",
        "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "eip155:137",
        "eip155:42161"
      ],
      "networks_source": "observed",
      "payment_protocols": [
        "x402"
      ],
      "mainnet": true,
      "evidence": {
        "operations": 1,
        "check_interval_hours": 24,
        "check_interval": "daily",
        "check_interval_rule": "Daily: 5 to 99 payers, and every new service until it has been probed 3 times.",
        "schedule_tier": "daily",
        "monitoring_since": "2026-10-17T02:45:25.000Z",
        "monitoring_days": 0.1,
        "limited_evidence": true,
        "checks_30d": 1,
        "passed_30d": 1,
        "missed_30d": 0,
        "pass_rate": 1,
        "freshness": "fresh",
        "last_check": {
          "at": "2026-10-17T03:20:58.489Z",
          "result": "payment_required",
          "passed": true,
          "http_status": 402,
          "duration_ms": 348
        }
      },
      "registry_usage": {
        "calls_30d": 11,
        "unique_payers_30d": 3,
        "note": "Reported by the registry; not our measurement."
      },
      "payment_terms": {
        "current_since": "2026-10-17T03:20:58.489Z",
        "changes_30d": 0,
        "changes_90d": 0,
        "pay_to_changes_90d": 0,
        "last_change_at": null,
        "last_change_kinds": [],
        "window_start": "2026-10-17T02:45:25.000Z",
        "limited": true
      },
      "registry_listing": {
        "last_seen_at": "2026-10-17T02:45:25.000Z",
        "listed": true
      },
      "links": {
        "page": "https://agentserviceatlas.com/services/cand_063f82fc8888c6fa",
        "api": "https://agentserviceatlas.com/api/v1/services/cand_063f82fc8888c6fa"
      }
    },
    {
      "id": "cand_eae8f88e987d4d7a",
      "tier": "discovered",
      "type": "api_endpoint",
      "name": "eu-verify",
      "name_source": "registry",
      "host": "data.greeneris.io",
      "url": "https://data.greeneris.io/v1/logistics/gtin-check",
      "method": "GET",
      "templated_url": false,
      "operator": null,
      "tags": [
        "logistics",
        "gtin",
        "ean",
        "upc",
        "barcode"
      ],
      "category": null,
      "price_usd": 0.001,
      "price_source": "registry",
      "provider_endpoints": 83,
      "networks": [
        "eip155:8453"
      ],
      "networks_source": "observed",
      "payment_protocols": [],
      "mainnet": true,
      "evidence": {
        "operations": 1,
        "check_interval_hours": 24,
        "check_interval": "daily",
        "check_interval_rule": "Daily: 5 to 99 payers, and every new service until it has been probed 3 times.",
        "schedule_tier": "daily",
        "monitoring_since": "2026-10-16T23:07:46.000Z",
        "monitoring_days": 0.3,
        "limited_evidence": true,
        "checks_30d": 1,
        "passed_30d": 1,
        "missed_30d": 0,
        "pass_rate": 1,
        "freshness": "fresh",
        "last_check": {
          "at": "2026-10-16T23:07:58.993Z",
          "result": "payment_required",
          "passed": true,
          "http_status": 402,
          "duration_ms": 229
        }
      },
      "registry_usage": {
        "calls_30d": 3,
        "unique_payers_30d": 3,
        "note": "Reported by the registry; not our measurement."
      },
      "payment_terms": {
        "current_since": "2026-10-16T23:07:58.993Z",
        "changes_30d": 0,
        "changes_90d": 0,
        "pay_to_changes_90d": 0,
        "last_change_at": null,
        "last_change_kinds": [],
        "window_start": "2026-10-16T23:07:46.000Z",
        "limited": true
      },
      "registry_listing": {
        "last_seen_at": "2026-10-16T23:07:46.000Z",
        "listed": true
      },
      "links": {
        "page": "https://agentserviceatlas.com/services/cand_eae8f88e987d4d7a",
        "api": "https://agentserviceatlas.com/api/v1/services/cand_eae8f88e987d4d7a"
      }
    },
    {
      "id": "cand_9dca4a9ed0294350",
      "tier": "discovered",
      "type": "api_endpoint",
      "name": "Barcode & ISBN validator",
      "name_source": "registry",
      "host": "api.vextorium.com",
      "url": "https://api.vextorium.com/v1/barcode-validate",
      "method": "POST",
      "templated_url": false,
      "operator": null,
      "tags": [
        "barcode",
        "ean",
        "upc",
        "isbn",
        "gtin"
      ],
      "category": null,
      "price_usd": 0.003,
      "price_source": "registry",
      "provider_endpoints": 599,
      "networks": [
        "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "eip155:8453",
        "eip155:137",
        "eip155:10",
        "eip155:5042",
        "xrpl:0"
      ],
      "networks_source": "registry",
      "payment_protocols": [],
      "mainnet": null,
      "evidence": {
        "operations": 1,
        "check_interval_hours": 24,
        "check_interval": "daily",
        "check_interval_rule": "Daily: 5 to 99 payers, and every new service until it has been probed 3 times.",
        "schedule_tier": "daily",
        "monitoring_since": "2026-10-17T04:45:25.000Z",
        "monitoring_days": 0,
        "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": 3,
        "unique_payers_30d": 3,
        "note": "Reported by the registry; not our measurement."
      },
      "payment_terms": null,
      "registry_listing": {
        "last_seen_at": "2026-10-17T04:45:25.000Z",
        "listed": true
      },
      "links": {
        "page": "https://agentserviceatlas.com/services/cand_9dca4a9ed0294350",
        "api": "https://agentserviceatlas.com/api/v1/services/cand_9dca4a9ed0294350"
      }
    },
    {
      "id": "cand_16ba1567c9785cc7",
      "tier": "discovered",
      "type": "api_endpoint",
      "name": "Barcode product lookup",
      "name_source": "registry",
      "host": "agent402.tools",
      "url": "https://agent402.tools/api/barcode-lookup",
      "method": "GET",
      "templated_url": false,
      "operator": null,
      "tags": [
        "data",
        "barcode",
        "upc",
        "ean",
        "product"
      ],
      "category": null,
      "price_usd": 0.005,
      "price_source": "registry",
      "provider_endpoints": 586,
      "networks": [
        "eip155:8453",
        "eip155:137",
        "eip155:42161",
        "eip155:143",
        "eip155:43114",
        "eip155:1329",
        "eip155:10",
        "eip155:4663",
        "eip155:42220"
      ],
      "networks_source": "registry",
      "payment_protocols": [],
      "mainnet": null,
      "evidence": {
        "operations": 1,
        "check_interval_hours": 24,
        "check_interval": "daily",
        "check_interval_rule": "Daily: 5 to 99 payers, and every new service until it has been probed 3 times.",
        "schedule_tier": "daily",
        "monitoring_since": "2026-10-17T03:45:25.000Z",
        "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": 3,
        "note": "Reported by the registry; not our measurement."
      },
      "payment_terms": null,
      "registry_listing": {
        "last_seen_at": "2026-10-17T05:40:25.000Z",
        "listed": true
      },
      "links": {
        "page": "https://agentserviceatlas.com/services/cand_16ba1567c9785cc7",
        "api": "https://agentserviceatlas.com/api/v1/services/cand_16ba1567c9785cc7"
      }
    },
    {
      "id": "cand_872bf6e146dd6011",
      "tier": "discovered",
      "type": "api_endpoint",
      "name": "validate-ean",
      "name_source": "registry",
      "host": "x402.agentindex.world",
      "url": "https://x402.agentindex.world/validate/ean",
      "method": "POST",
      "templated_url": false,
      "operator": null,
      "tags": [
        "ean",
        "barcode",
        "upc",
        "gtin",
        "checksum"
      ],
      "category": null,
      "price_usd": 0.001,
      "price_source": "registry",
      "provider_endpoints": 114,
      "networks": [
        "eip155:8453"
      ],
      "networks_source": "registry",
      "payment_protocols": [],
      "mainnet": null,
      "evidence": {
        "operations": 1,
        "check_interval_hours": 24,
        "check_interval": "daily",
        "check_interval_rule": "Daily: 5 to 99 payers, and every new service until it has been probed 3 times.",
        "schedule_tier": "daily",
        "monitoring_since": "2026-10-17T03:05:25.000Z",
        "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": 3,
        "unique_payers_30d": 3,
        "note": "Reported by the registry; not our measurement."
      },
      "payment_terms": null,
      "registry_listing": {
        "last_seen_at": "2026-10-17T03:05:25.000Z",
        "listed": true
      },
      "links": {
        "page": "https://agentserviceatlas.com/services/cand_872bf6e146dd6011",
        "api": "https://agentserviceatlas.com/api/v1/services/cand_872bf6e146dd6011"
      }
    },
    {
      "id": "cand_b5b1c57f440a7991",
      "tier": "discovered",
      "type": "api_endpoint",
      "name": "AgentRXI",
      "name_source": "registry",
      "host": "agentrxi.com",
      "url": "https://agentrxi.com/v1/barcode/read",
      "method": "GET",
      "templated_url": false,
      "operator": null,
      "tags": [
        "barcode",
        "qr-code",
        "scan",
        "ean",
        "upc"
      ],
      "category": null,
      "price_usd": 0.003,
      "price_source": "registry",
      "provider_endpoints": 190,
      "networks": [
        "eip155:8453",
        "eip155:137",
        "eip155:42161",
        "eip155:480"
      ],
      "networks_source": "registry",
      "payment_protocols": [],
      "mainnet": null,
      "evidence": {
        "operations": 1,
        "check_interval_hours": 24,
        "check_interval": "daily",
        "check_interval_rule": "Daily: 5 to 99 payers, and every new service until it has been probed 3 times.",
        "schedule_tier": "daily",
        "monitoring_since": "2026-10-17T04:30:25.000Z",
        "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": "2026-10-17T04:30:25.000Z",
        "listed": true
      },
      "links": {
        "page": "https://agentserviceatlas.com/services/cand_b5b1c57f440a7991",
        "api": "https://agentserviceatlas.com/api/v1/services/cand_b5b1c57f440a7991"
      }
    }
  ]
}