{
  "api_status": "preview",
  "generated_at": "2026-10-17T22:03:36.869Z",
  "notes": [
    "We keep every service we find in the index, checked on its schedule. Search, the tree and browsing show the directory by default: the services that meet every listing criterion that applies to them (listing-criteria/1). Being in the directory means meeting these criteria; it is not a rating or an endorsement. Add scope=index to search everything we watch.",
    "Exact definitions of every field (unit, window, source): https://agentservicedirectory.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": {
    "scope": "directory",
    "host": "www.api-xpay.com",
    "sort": "evidence",
    "limit": 50,
    "offset": 0
  },
  "total": 11,
  "items": [
    {
      "id": "cand_d13c5b2b4387573d",
      "tier": "discovered",
      "type": "api_endpoint",
      "name": "X Pay",
      "name_source": "registry",
      "branches": {
        "primary": "payments/invoicing",
        "secondary": [],
        "method_version": "placement-ai/1",
        "tree_version": "tree/2",
        "placed_at": "2026-10-17T10:55:28.000Z"
      },
      "directory": {
        "in_directory": true,
        "method_version": "listing-criteria/1",
        "criteria": {
          "says_what_it_does": true,
          "answers_now": true,
          "registry_payers_at_least_5": true
        }
      },
      "host": "www.api-xpay.com",
      "provider": "api-xpay.com",
      "url": "https://www.api-xpay.com/x402/payment",
      "method": "GET",
      "templated_url": false,
      "operator": null,
      "tags": [],
      "category": null,
      "price_usd": 0.005,
      "price_source": "registry",
      "provider_endpoints": 14,
      "networks": [
        "eip155:8453"
      ],
      "networks_source": "observed",
      "payment_protocols": [
        "x402"
      ],
      "mainnet": true,
      "evidence": {
        "operations": 1,
        "check_interval_hours": 1,
        "check_interval": "hourly",
        "check_interval_rule": "Hourly: 100 or more distinct payers in the last 30 days, as reported by the registry.",
        "schedule_tier": "hourly",
        "monitoring_since": "2026-10-16T11:07:51.000Z",
        "monitoring_days": 1.5,
        "limited_evidence": true,
        "checks_30d": 17,
        "passed_30d": 17,
        "missed_30d": 2,
        "pass_rate": 1,
        "freshness": "fresh",
        "last_check": {
          "at": "2026-10-17T21:40:38.929Z",
          "result": "payment_required",
          "passed": true,
          "http_status": 402,
          "duration_ms": 257
        }
      },
      "registry_usage": {
        "calls_30d": 5940,
        "unique_payers_30d": 167,
        "note": "Reported by the registry; not our measurement."
      },
      "payment_terms": {
        "current_since": "2026-10-17T02:15:53.923Z",
        "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": "2026-10-17T02:35:25.000Z",
        "listed": true
      },
      "links": {
        "page": "https://agentservicedirectory.com/services/cand_d13c5b2b4387573d",
        "api": "https://agentservicedirectory.com/api/v1/services/cand_d13c5b2b4387573d"
      }
    },
    {
      "id": "cand_577450fe0597b89a",
      "tier": "discovered",
      "type": "api_endpoint",
      "name": "X Pay",
      "name_source": "registry",
      "branches": {
        "primary": "calculate/units-time",
        "secondary": [],
        "method_version": "placement-ai/1",
        "tree_version": "tree/2",
        "placed_at": "2026-10-17T10:55:28.000Z"
      },
      "directory": {
        "in_directory": true,
        "method_version": "listing-criteria/1",
        "criteria": {
          "says_what_it_does": true,
          "answers_now": true,
          "registry_payers_at_least_5": true
        }
      },
      "host": "www.api-xpay.com",
      "provider": "api-xpay.com",
      "url": "https://www.api-xpay.com/x402/time",
      "method": "GET",
      "templated_url": false,
      "operator": null,
      "tags": [],
      "category": null,
      "price_usd": 0.005,
      "price_source": "registry",
      "provider_endpoints": 14,
      "networks": [
        "eip155:8453"
      ],
      "networks_source": "observed",
      "payment_protocols": [
        "x402"
      ],
      "mainnet": true,
      "evidence": {
        "operations": 1,
        "check_interval_hours": 1,
        "check_interval": "hourly",
        "check_interval_rule": "Hourly: 100 or more distinct payers in the last 30 days, as reported by the registry.",
        "schedule_tier": "hourly",
        "monitoring_since": "2026-10-16T11:07:51.000Z",
        "monitoring_days": 1.5,
        "limited_evidence": true,
        "checks_30d": 17,
        "passed_30d": 17,
        "missed_30d": 2,
        "pass_rate": 1,
        "freshness": "fresh",
        "last_check": {
          "at": "2026-10-17T21:35:32.905Z",
          "result": "payment_required",
          "passed": true,
          "http_status": 402,
          "duration_ms": 263
        }
      },
      "registry_usage": {
        "calls_30d": 5764,
        "unique_payers_30d": 165,
        "note": "Reported by the registry; not our measurement."
      },
      "payment_terms": {
        "current_since": "2026-10-17T02:15:53.923Z",
        "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": "2026-10-17T02:35:25.000Z",
        "listed": true
      },
      "links": {
        "page": "https://agentservicedirectory.com/services/cand_577450fe0597b89a",
        "api": "https://agentservicedirectory.com/api/v1/services/cand_577450fe0597b89a"
      }
    },
    {
      "id": "cand_7d9a84b45e16578e",
      "tier": "discovered",
      "type": "api_endpoint",
      "name": "X Pay",
      "name_source": "registry",
      "branches": {
        "primary": "calculate/math-science",
        "secondary": [],
        "method_version": "placement-ai/1",
        "tree_version": "tree/2",
        "placed_at": "2026-10-17T10:55:28.000Z"
      },
      "directory": {
        "in_directory": true,
        "method_version": "listing-criteria/1",
        "criteria": {
          "says_what_it_does": true,
          "answers_now": true,
          "registry_payers_at_least_5": true
        }
      },
      "host": "www.api-xpay.com",
      "provider": "api-xpay.com",
      "url": "https://www.api-xpay.com/x402/uuid",
      "method": "GET",
      "templated_url": false,
      "operator": null,
      "tags": [],
      "category": null,
      "price_usd": 0.005,
      "price_source": "registry",
      "provider_endpoints": 14,
      "networks": [
        "eip155:8453"
      ],
      "networks_source": "observed",
      "payment_protocols": [
        "x402"
      ],
      "mainnet": true,
      "evidence": {
        "operations": 1,
        "check_interval_hours": 1,
        "check_interval": "hourly",
        "check_interval_rule": "Hourly: 100 or more distinct payers in the last 30 days, as reported by the registry.",
        "schedule_tier": "hourly",
        "monitoring_since": "2026-10-16T11:07:51.000Z",
        "monitoring_days": 1.5,
        "limited_evidence": true,
        "checks_30d": 17,
        "passed_30d": 17,
        "missed_30d": 2,
        "pass_rate": 1,
        "freshness": "fresh",
        "last_check": {
          "at": "2026-10-17T21:40:38.928Z",
          "result": "payment_required",
          "passed": true,
          "http_status": 402,
          "duration_ms": 256
        }
      },
      "registry_usage": {
        "calls_30d": 5727,
        "unique_payers_30d": 163,
        "note": "Reported by the registry; not our measurement."
      },
      "payment_terms": {
        "current_since": "2026-10-17T02:20:47.822Z",
        "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": "2026-10-17T02:35:25.000Z",
        "listed": true
      },
      "links": {
        "page": "https://agentservicedirectory.com/services/cand_7d9a84b45e16578e",
        "api": "https://agentservicedirectory.com/api/v1/services/cand_7d9a84b45e16578e"
      }
    },
    {
      "id": "cand_6ebafe992bb3b981",
      "tier": "discovered",
      "type": "api_endpoint",
      "name": "X Pay",
      "name_source": "registry",
      "branches": {
        "primary": "payments/invoicing",
        "secondary": [],
        "method_version": "placement-ai/1",
        "tree_version": "tree/2",
        "placed_at": "2026-10-17T10:55:28.000Z"
      },
      "directory": {
        "in_directory": true,
        "method_version": "listing-criteria/1",
        "criteria": {
          "says_what_it_does": true,
          "answers_now": true,
          "registry_payers_at_least_5": true
        }
      },
      "host": "www.api-xpay.com",
      "provider": "api-xpay.com",
      "url": "https://www.api-xpay.com/x402/quote",
      "method": "GET",
      "templated_url": false,
      "operator": null,
      "tags": [
        "payment",
        "quote",
        "pricing",
        "merchant",
        "invoice"
      ],
      "category": null,
      "price_usd": 0.005,
      "price_source": "registry",
      "provider_endpoints": 14,
      "networks": [
        "eip155:8453"
      ],
      "networks_source": "observed",
      "payment_protocols": [
        "x402"
      ],
      "mainnet": true,
      "evidence": {
        "operations": 1,
        "check_interval_hours": 1,
        "check_interval": "hourly",
        "check_interval_rule": "Hourly: 100 or more distinct payers in the last 30 days, as reported by the registry.",
        "schedule_tier": "hourly",
        "monitoring_since": "2026-10-17T01:07:46.000Z",
        "monitoring_days": 0.9,
        "limited_evidence": true,
        "checks_30d": 16,
        "passed_30d": 16,
        "missed_30d": 3,
        "pass_rate": 1,
        "freshness": "fresh",
        "last_check": {
          "at": "2026-10-17T21:45:35.413Z",
          "result": "payment_required",
          "passed": true,
          "http_status": 402,
          "duration_ms": 252
        }
      },
      "registry_usage": {
        "calls_30d": 5895,
        "unique_payers_30d": 166,
        "note": "Reported by the registry; not our measurement."
      },
      "payment_terms": {
        "current_since": "2026-10-17T02:41:46.668Z",
        "changes_30d": 0,
        "changes_90d": 0,
        "pay_to_changes_90d": 0,
        "last_change_at": null,
        "last_change_kinds": [],
        "window_start": "2026-10-17T01:07:46.000Z",
        "limited": true
      },
      "registry_listing": {
        "last_seen_at": "2026-10-17T02:35:25.000Z",
        "listed": true
      },
      "links": {
        "page": "https://agentservicedirectory.com/services/cand_6ebafe992bb3b981",
        "api": "https://agentservicedirectory.com/api/v1/services/cand_6ebafe992bb3b981"
      }
    },
    {
      "id": "cand_719936862e93d80e",
      "tier": "discovered",
      "type": "api_endpoint",
      "name": "X Pay",
      "name_source": "registry",
      "branches": {
        "primary": "web/domains-network",
        "secondary": [],
        "method_version": "placement-ai/1",
        "tree_version": "tree/2",
        "placed_at": "2026-10-17T10:55:28.000Z"
      },
      "directory": {
        "in_directory": true,
        "method_version": "listing-criteria/1",
        "criteria": {
          "says_what_it_does": true,
          "answers_now": true,
          "registry_payers_at_least_5": true
        }
      },
      "host": "www.api-xpay.com",
      "provider": "api-xpay.com",
      "url": "https://www.api-xpay.com/x402/ip",
      "method": "GET",
      "templated_url": false,
      "operator": null,
      "tags": [
        "ip",
        "client",
        "geo",
        "address",
        "network"
      ],
      "category": null,
      "price_usd": 0.005,
      "price_source": "registry",
      "provider_endpoints": 14,
      "networks": [
        "eip155:8453"
      ],
      "networks_source": "observed",
      "payment_protocols": [
        "x402"
      ],
      "mainnet": true,
      "evidence": {
        "operations": 1,
        "check_interval_hours": 1,
        "check_interval": "hourly",
        "check_interval_rule": "Hourly: 100 or more distinct payers in the last 30 days, as reported by the registry.",
        "schedule_tier": "hourly",
        "monitoring_since": "2026-10-17T01:07:46.000Z",
        "monitoring_days": 0.9,
        "limited_evidence": true,
        "checks_30d": 16,
        "passed_30d": 16,
        "missed_30d": 3,
        "pass_rate": 1,
        "freshness": "fresh",
        "last_check": {
          "at": "2026-10-17T21:50:37.014Z",
          "result": "payment_required",
          "passed": true,
          "http_status": 402,
          "duration_ms": 257
        }
      },
      "registry_usage": {
        "calls_30d": 5789,
        "unique_payers_30d": 164,
        "note": "Reported by the registry; not our measurement."
      },
      "payment_terms": {
        "current_since": "2026-10-17T02:45:55.477Z",
        "changes_30d": 0,
        "changes_90d": 0,
        "pay_to_changes_90d": 0,
        "last_change_at": null,
        "last_change_kinds": [],
        "window_start": "2026-10-17T01:07:46.000Z",
        "limited": true
      },
      "registry_listing": {
        "last_seen_at": "2026-10-17T02:35:25.000Z",
        "listed": true
      },
      "links": {
        "page": "https://agentservicedirectory.com/services/cand_719936862e93d80e",
        "api": "https://agentservicedirectory.com/api/v1/services/cand_719936862e93d80e"
      }
    },
    {
      "id": "cand_818ead6046d37db4",
      "tier": "discovered",
      "type": "api_endpoint",
      "name": "X Pay",
      "name_source": "registry",
      "branches": {
        "primary": "calculate/math-science",
        "secondary": [],
        "method_version": "placement-ai/1",
        "tree_version": "tree/2",
        "placed_at": "2026-10-17T10:55:28.000Z"
      },
      "directory": {
        "in_directory": true,
        "method_version": "listing-criteria/1",
        "criteria": {
          "says_what_it_does": true,
          "answers_now": true,
          "registry_payers_at_least_5": true
        }
      },
      "host": "www.api-xpay.com",
      "provider": "api-xpay.com",
      "url": "https://www.api-xpay.com/x402/random",
      "method": "GET",
      "templated_url": false,
      "operator": null,
      "tags": [
        "random",
        "bytes",
        "entropy",
        "hex",
        "generator"
      ],
      "category": null,
      "price_usd": 0.005,
      "price_source": "registry",
      "provider_endpoints": 14,
      "networks": [
        "eip155:8453"
      ],
      "networks_source": "observed",
      "payment_protocols": [
        "x402"
      ],
      "mainnet": true,
      "evidence": {
        "operations": 1,
        "check_interval_hours": 1,
        "check_interval": "hourly",
        "check_interval_rule": "Hourly: 100 or more distinct payers in the last 30 days, as reported by the registry.",
        "schedule_tier": "hourly",
        "monitoring_since": "2026-10-17T01:07:46.000Z",
        "monitoring_days": 0.9,
        "limited_evidence": true,
        "checks_30d": 16,
        "passed_30d": 16,
        "missed_30d": 3,
        "pass_rate": 1,
        "freshness": "fresh",
        "last_check": {
          "at": "2026-10-17T21:50:37.014Z",
          "result": "payment_required",
          "passed": true,
          "http_status": 402,
          "duration_ms": 257
        }
      },
      "registry_usage": {
        "calls_30d": 5816,
        "unique_payers_30d": 164,
        "note": "Reported by the registry; not our measurement."
      },
      "payment_terms": {
        "current_since": "2026-10-17T02:45:55.734Z",
        "changes_30d": 0,
        "changes_90d": 0,
        "pay_to_changes_90d": 0,
        "last_change_at": null,
        "last_change_kinds": [],
        "window_start": "2026-10-17T01:07:46.000Z",
        "limited": true
      },
      "registry_listing": {
        "last_seen_at": "2026-10-17T02:35:25.000Z",
        "listed": true
      },
      "links": {
        "page": "https://agentservicedirectory.com/services/cand_818ead6046d37db4",
        "api": "https://agentservicedirectory.com/api/v1/services/cand_818ead6046d37db4"
      }
    },
    {
      "id": "cand_d19d2b473b1a8099",
      "tier": "discovered",
      "type": "api_endpoint",
      "name": "X Pay",
      "name_source": "registry",
      "branches": {
        "primary": "finance-data/crypto",
        "secondary": [],
        "method_version": "placement-ai/1",
        "tree_version": "tree/2",
        "placed_at": "2026-10-17T10:55:28.000Z"
      },
      "directory": {
        "in_directory": true,
        "method_version": "listing-criteria/1",
        "criteria": {
          "says_what_it_does": true,
          "answers_now": true,
          "registry_payers_at_least_5": true
        }
      },
      "host": "www.api-xpay.com",
      "provider": "api-xpay.com",
      "url": "https://www.api-xpay.com/x402/network",
      "method": "GET",
      "templated_url": false,
      "operator": null,
      "tags": [
        "base",
        "usdc",
        "chain",
        "eip155",
        "x402"
      ],
      "category": null,
      "price_usd": 0.005,
      "price_source": "registry",
      "provider_endpoints": 14,
      "networks": [
        "eip155:8453"
      ],
      "networks_source": "observed",
      "payment_protocols": [
        "x402"
      ],
      "mainnet": true,
      "evidence": {
        "operations": 1,
        "check_interval_hours": 1,
        "check_interval": "hourly",
        "check_interval_rule": "Hourly: 100 or more distinct payers in the last 30 days, as reported by the registry.",
        "schedule_tier": "hourly",
        "monitoring_since": "2026-10-17T01:07:46.000Z",
        "monitoring_days": 0.9,
        "limited_evidence": true,
        "checks_30d": 16,
        "passed_30d": 16,
        "missed_30d": 3,
        "pass_rate": 1,
        "freshness": "fresh",
        "last_check": {
          "at": "2026-10-17T21:45:35.412Z",
          "result": "payment_required",
          "passed": true,
          "http_status": 402,
          "duration_ms": 251
        }
      },
      "registry_usage": {
        "calls_30d": 5779,
        "unique_payers_30d": 164,
        "note": "Reported by the registry; not our measurement."
      },
      "payment_terms": {
        "current_since": "2026-10-17T02:41:46.664Z",
        "changes_30d": 0,
        "changes_90d": 0,
        "pay_to_changes_90d": 0,
        "last_change_at": null,
        "last_change_kinds": [],
        "window_start": "2026-10-17T01:07:46.000Z",
        "limited": true
      },
      "registry_listing": {
        "last_seen_at": "2026-10-17T02:35:25.000Z",
        "listed": true
      },
      "links": {
        "page": "https://agentservicedirectory.com/services/cand_d19d2b473b1a8099",
        "api": "https://agentservicedirectory.com/api/v1/services/cand_d19d2b473b1a8099"
      }
    },
    {
      "id": "cand_8122fb213d081d19",
      "tier": "discovered",
      "type": "api_endpoint",
      "name": "X Pay",
      "name_source": "registry",
      "branches": {
        "primary": "documents/text",
        "secondary": [
          "ai/language-models"
        ],
        "method_version": "placement-ai/1",
        "tree_version": "tree/2",
        "placed_at": "2026-10-17T10:55:28.000Z"
      },
      "directory": {
        "in_directory": true,
        "method_version": "listing-criteria/1",
        "criteria": {
          "says_what_it_does": true,
          "answers_now": true,
          "registry_payers_at_least_5": true
        }
      },
      "host": "www.api-xpay.com",
      "provider": "api-xpay.com",
      "url": "https://www.api-xpay.com/x402/rewrite",
      "method": "POST",
      "templated_url": false,
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