{
  "api_status": "preview",
  "generated_at": "2026-10-18T05:58:49.439Z",
  "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.",
    "Results are computed at generated_at; the same query may be answered from that result for up to a minute.",
    "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",
    "tag": "crypto-price",
    "sort": "evidence",
    "limit": 50,
    "offset": 0
  },
  "total": 6,
  "items": [
    {
      "id": "cand_3fda3266e46c041e",
      "tier": "discovered",
      "type": "api_endpoint",
      "name": "Otto AI",
      "name_source": "registry",
      "branches": {
        "primary": "finance-data/crypto/prices",
        "secondary": [],
        "method_version": "placement-ai/2",
        "tree_version": "tree/3",
        "placed_at": "2026-10-18T01:00:28.000Z"
      },
      "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": "x402.ottoai.services",
      "provider": "ottoai.services",
      "url": "https://x402.ottoai.services/token-price",
      "method": "GET",
      "templated_url": false,
      "operator": null,
      "tags": [
        "token-price",
        "crypto-price",
        "dex-price",
        "price-feed",
        "onchain-price"
      ],
      "category": null,
      "price_usd": 0.001,
      "price_source": "registry",
      "provider_endpoints": 147,
      "networks": [
        "eip155:8453",
        "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp"
      ],
      "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": "2026-10-16T15:07:55.000Z",
        "monitoring_days": 1.6,
        "limited_evidence": true,
        "checks_30d": 2,
        "passed_30d": 2,
        "missed_30d": 0,
        "pass_rate": 1,
        "freshness": "fresh",
        "last_check": {
          "at": "2026-10-18T02:20:50.108Z",
          "result": "payment_required",
          "passed": true,
          "http_status": 402,
          "duration_ms": 108
        }
      },
      "registry_usage": {
        "calls_30d": 8,
        "unique_payers_30d": 8,
        "note": "Reported by the registry; not our measurement."
      },
      "payment_terms": {
        "current_since": "2026-10-17T02:15:56.130Z",
        "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": "2026-10-18T00:30:28.000Z",
        "listed": true
      },
      "links": {
        "page": "https://agentservicedirectory.com/services/cand_3fda3266e46c041e",
        "api": "https://agentservicedirectory.com/api/v1/services/cand_3fda3266e46c041e"
      }
    },
    {
      "id": "cand_12fd09001a9918bc",
      "tier": "discovered",
      "type": "api_endpoint",
      "name": "Oblique Markets",
      "name_source": "registry",
      "branches": {
        "primary": "finance-data/crypto/prices",
        "secondary": [],
        "method_version": "placement-ai/2",
        "tree_version": "tree/3",
        "placed_at": "2026-10-18T00:40:28.000Z"
      },
      "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": "api.oblique.markets",
      "provider": "oblique.markets",
      "url": "https://api.oblique.markets/api/v1/paid/crypto-price",
      "method": "GET",
      "templated_url": false,
      "operator": null,
      "tags": [
        "crypto-price",
        "market-data",
        "spot-price",
        "usd"
      ],
      "category": null,
      "price_usd": 0.004,
      "price_source": "registry",
      "provider_endpoints": 68,
      "networks": [
        "eip155:8453",
        "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp"
      ],
      "networks_source": "observed",
      "payment_protocols": [
        "x402",
        "mpp"
      ],
      "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": "2026-10-16T14:07:55.000Z",
        "monitoring_days": 1.7,
        "limited_evidence": true,
        "checks_30d": 2,
        "passed_30d": 2,
        "missed_30d": 0,
        "pass_rate": 1,
        "freshness": "fresh",
        "last_check": {
          "at": "2026-10-17T14:10:40.890Z",
          "result": "payment_required",
          "passed": true,
          "http_status": 402,
          "duration_ms": 191
        }
      },
      "registry_usage": {
        "calls_30d": 13,
        "unique_payers_30d": 7,
        "note": "Reported by the registry; not our measurement."
      },
      "payment_terms": {
        "current_since": "2026-10-17T14:10:40.890Z",
        "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": "2026-10-18T00:35:28.000Z",
        "listed": true
      },
      "links": {
        "page": "https://agentservicedirectory.com/services/cand_12fd09001a9918bc",
        "api": "https://agentservicedirectory.com/api/v1/services/cand_12fd09001a9918bc"
      }
    },
    {
      "id": "cand_b40438f3d55b4081",
      "tier": "discovered",
      "type": "api_endpoint",
      "name": "NetIntel",
      "name_source": "registry",
      "branches": {
        "primary": "finance-data/crypto/prices",
        "secondary": [],
        "method_version": "placement-ai/2",
        "tree_version": "tree/3",
        "placed_at": "2026-10-18T00:15:28.000Z"
      },
      "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": "netintel.dev",
      "provider": "netintel.dev",
      "url": "https://netintel.dev/crypto/market",
      "method": "GET",
      "templated_url": false,
      "operator": null,
      "tags": [
        "crypto-price",
        "bitcoin-price",
        "market-data",
        "token-price",
        "no-api-key"
      ],
      "category": null,
      "price_usd": 0.005,
      "price_source": "registry",
      "provider_endpoints": 245,
      "networks": [
        "eip155:8453",
        "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp"
      ],
      "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": "2026-10-16T15:07:55.000Z",
        "monitoring_days": 1.6,
        "limited_evidence": true,
        "checks_30d": 2,
        "passed_30d": 2,
        "missed_30d": 0,
        "pass_rate": 1,
        "freshness": "fresh",
        "last_check": {
          "at": "2026-10-18T02:20:54.079Z",
          "result": "payment_required",
          "passed": true,
          "http_status": 402,
          "duration_ms": 73
        }
      },
      "registry_usage": {
        "calls_30d": 9,
        "unique_payers_30d": 6,
        "note": "Reported by the registry; not our measurement."
      },
      "payment_terms": {
        "current_since": "2026-10-17T02:16:01.567Z",
        "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": "2026-10-18T00:50:28.000Z",
        "listed": true
      },
      "links": {
        "page": "https://agentservicedirectory.com/services/cand_b40438f3d55b4081",
        "api": "https://agentservicedirectory.com/api/v1/services/cand_b40438f3d55b4081"
      }
    },
    {
      "id": "cand_f85f8bb993fb40a7",
      "tier": "discovered",
      "type": "api_endpoint",
      "name": "402oracle",
      "name_source": "registry",
      "branches": {
        "primary": "finance-data/crypto/prices",
        "secondary": [],
        "method_version": "placement-ai/2",
        "tree_version": "tree/3",
        "placed_at": "2026-10-18T00:30:28.000Z"
      },
      "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": "402oracle.com",
      "provider": "402oracle.com",
      "url": "https://402oracle.com/verify/price",
      "method": "POST",
      "templated_url": false,
      "operator": null,
      "tags": [
        "crypto-price",
        "price-oracle",
        "token-price",
        "bitcoin-price",
        "market-data"
      ],
      "category": null,
      "price_usd": 0.02,
      "price_source": "registry",
      "provider_endpoints": 6,
      "networks": [
        "eip155:8453",
        "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": "2026-10-16T11:07:51.000Z",
        "monitoring_days": 1.8,
        "limited_evidence": true,
        "checks_30d": 2,
        "passed_30d": 2,
        "missed_30d": 0,
        "pass_rate": 1,
        "freshness": "fresh",
        "last_check": {
          "at": "2026-10-18T02:00:48.087Z",
          "result": "payment_required",
          "passed": true,
          "http_status": 402,
          "duration_ms": 35
        }
      },
      "registry_usage": {
        "calls_30d": 17,
        "unique_payers_30d": 5,
        "note": "Reported by the registry; not our measurement."
      },
      "payment_terms": {
        "current_since": "2026-10-17T01:56:04.283Z",
        "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": "2026-10-18T00:10:28.000Z",
        "listed": true
      },
      "links": {
        "page": "https://agentservicedirectory.com/services/cand_f85f8bb993fb40a7",
        "api": "https://agentservicedirectory.com/api/v1/services/cand_f85f8bb993fb40a7"
      }
    },
    {
      "id": "cand_a094f66e32422c3c",
      "tier": "discovered",
      "type": "api_endpoint",
      "name": "Simple crypto price by ticker",
      "name_source": "registry",
      "branches": {
        "primary": "finance-data/crypto/prices",
        "secondary": [],
        "method_version": "placement-ai/2",
        "tree_version": "tree/3",
        "placed_at": "2026-10-18T02:45:28.000Z"
      },
      "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": "api.vextorium.com",
      "provider": "vextorium.com",
      "url": "https://api.vextorium.com/v1/crypto-price",
      "method": "POST",
      "templated_url": false,
      "operator": null,
      "tags": [
        "crypto-price",
        "price",
        "crypto",
        "ticker",
        "usd"
      ],
      "category": null,
      "price_usd": 0.003,
      "price_source": "registry",
      "provider_endpoints": 1052,
      "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": "2026-10-17T02:30:25.000Z",
        "monitoring_days": 1.1,
        "limited_evidence": true,
        "checks_30d": 1,
        "passed_30d": 1,
        "missed_30d": 0,
        "pass_rate": 1,
        "freshness": "fresh",
        "last_check": {
          "at": "2026-10-17T04:20:58.869Z",
          "result": "payment_required",
          "passed": true,
          "http_status": 402,
          "duration_ms": 377
        }
      },
      "registry_usage": {
        "calls_30d": 6,
        "unique_payers_30d": 5,
        "note": "Reported by the registry; not our measurement."
      },
      "payment_terms": {
        "current_since": "2026-10-17T04:20:58.869Z",
        "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": "2026-10-18T02:05:28.000Z",
        "listed": true
      },
      "links": {
        "page": "https://agentservicedirectory.com/services/cand_a094f66e32422c3c",
        "api": "https://agentservicedirectory.com/api/v1/services/cand_a094f66e32422c3c"
      }
    },
    {
      "id": "cand_8e89dfc5e5368ef7",
      "tier": "discovered",
      "type": "api_endpoint",
      "name": "twin.unykorn.org",
      "name_source": "registry",
      "branches": {
        "primary": "finance-data/crypto/prices",
        "secondary": [],
        "method_version": "placement-ai/2",
        "tree_version": "tree/3",
        "placed_at": "2026-10-18T00:25:28.000Z"
      },
      "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": "twin.unykorn.org",
      "provider": "unykorn.org",
      "url": "https://twin.unykorn.org/price/bitcoin",
      "method": "POST",
      "templated_url": false,
      "operator": null,
      "tags": [
        "price",
        "btc",
        "bitcoin",
        "crypto-price",
        "market-data"
      ],
      "category": null,
      "price_usd": 0.003,
      "price_source": "registry",
      "provider_endpoints": 369,
      "networks": [
        "eip155:8453",
        "eip155:137",
        "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp"
      ],
      "networks_source": "observed",
      "payment_protocols": [
        "x402",
        "mpp"
      ],
      "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": "2026-10-17T10:50:28.000Z",
        "monitoring_days": 0.8,
        "limited_evidence": true,
        "checks_30d": 1,
        "passed_30d": 1,
        "missed_30d": 0,
        "pass_rate": 1,
        "freshness": "fresh",
        "last_check": {
          "at": "2026-10-17T11:35:51.943Z",
          "result": "payment_required",
          "passed": true,
          "http_status": 402,
          "duration_ms": 98
        }
      },
      "registry_usage": {
        "calls_30d": 9,
        "unique_payers_30d": 5,
        "note": "Reported by the registry; not our measurement."
      },
      "payment_terms": {
        "current_since": "2026-10-17T11:35:51.943Z",
        "changes_30d": 0,
        "changes_90d": 0,
        "pay_to_changes_90d": 0,
        "last_change_at": null,
        "last_change_kinds": [],
        "window_start": "2026-10-17T10:50:28.000Z",
        "limited": true
      },
      "registry_listing": {
        "last_seen_at": "2026-10-17T16:05:28.000Z",
        "listed": true
      },
      "links": {
        "page": "https://agentservicedirectory.com/services/cand_8e89dfc5e5368ef7",
        "api": "https://agentservicedirectory.com/api/v1/services/cand_8e89dfc5e5368ef7"
      }
    }
  ]
}