{
  "api_status": "preview",
  "generated_at": "2026-10-19T17:52:37.812Z",
  "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/4). 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 five minutes. Whether each service is in the directory is worked out every five minutes for services just checked or placed, and for every service each hour.",
    "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": "index",
    "tag": "changes",
    "sort": "evidence",
    "limit": 50,
    "offset": 0
  },
  "total": 10,
  "items": [
    {
      "id": "cand_c3aa2dbe715a9bfa",
      "tier": "discovered",
      "type": "api_endpoint",
      "name": "SatsSignal",
      "name_source": "registry",
      "branches": {
        "primary": "web/site-analysis/change-monitoring",
        "secondary": [],
        "method_version": "placement-ai/3",
        "tree_version": "tree/3",
        "placed_at": "2026-10-18T14:45:05.000Z"
      },
      "package": null,
      "directory": {
        "in_directory": false,
        "method_version": "listing-criteria/4",
        "criteria": {
          "says_what_it_does": true,
          "answers_now": true,
          "registry_payers_at_least_5": false,
          "curated_catalogue": false,
          "not_computable_locally": true,
          "not_test_address": true
        }
      },
      "host": "srv1334799.hstgr.cloud",
      "provider": "srv1334799.hstgr.cloud",
      "url": "https://srv1334799.hstgr.cloud/v1/changes",
      "method": "GET",
      "templated_url": false,
      "operator": null,
      "tags": [
        "bitcoin",
        "changes",
        "monitoring",
        "research"
      ],
      "category": null,
      "price_usd": 0.01,
      "price_source": "registry",
      "provider_endpoints": 2,
      "networks": [
        "eip155:8453"
      ],
      "networks_source": "observed",
      "payment_protocols": [
        "x402"
      ],
      "access": {
        "observed": {
          "requires": "payment",
          "how": [
            "x402"
          ],
          "at": "2026-10-19T02:10:28.685Z",
          "method": "access/1"
        },
        "stated": null
      },
      "tools": null,
      "payment_model": {
        "value": "per_call",
        "source": "observed",
        "method": "access/1"
      },
      "mainnet": true,
      "evidence": {
        "operations": 1,
        "check_interval_hours": 168,
        "check_interval": "weekly",
        "check_interval_rule": "Weekly: fewer than 5 payers, or no usage figure.",
        "schedule_tier": "weekly",
        "monitoring_since": "2026-10-16T12:07:55.000Z",
        "monitoring_days": 3.2,
        "limited_evidence": true,
        "checks_30d": 3,
        "passed_30d": 3,
        "missed_30d": 0,
        "pass_rate": 1,
        "freshness": "fresh",
        "last_check": {
          "at": "2026-10-19T02:10:28.685Z",
          "result": "payment_required",
          "passed": true,
          "http_status": 402,
          "duration_ms": 223
        }
      },
      "response_times": null,
      "registry_usage": {
        "calls_30d": 4,
        "unique_payers_30d": 4,
        "note": "Reported by the registry; not our measurement."
      },
      "payment_terms": {
        "current_since": "2026-10-17T02:00:54.616Z",
        "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": "2026-10-19T03:30:23.000Z",
        "listed": true
      },
      "links": {
        "page": "https://agentservicedirectory.com/services/cand_c3aa2dbe715a9bfa",
        "api": "https://agentservicedirectory.com/api/v1/services/cand_c3aa2dbe715a9bfa"
      }
    },
    {
      "id": "cand_34aabf5551ef199f",
      "tier": "discovered",
      "type": "api_endpoint",
      "name": "Annalist",
      "name_source": "registry",
      "branches": {
        "primary": "search/directories/paid-apis",
        "secondary": [
          "identity/security/agent-services"
        ],
        "method_version": "placement-ai/2",
        "tree_version": "tree/3",
        "placed_at": "2026-10-18T00:55:28.000Z"
      },
      "package": null,
      "directory": {
        "in_directory": false,
        "method_version": "listing-criteria/4",
        "criteria": {
          "says_what_it_does": false,
          "answers_now": true,
          "registry_payers_at_least_5": false,
          "curated_catalogue": false,
          "not_computable_locally": true,
          "not_test_address": true
        }
      },
      "host": "api.annalist.dev",
      "provider": "annalist.dev",
      "url": "https://api.annalist.dev/v1/checks/changes",
      "method": "GET",
      "templated_url": false,
      "operator": null,
      "tags": [
        "x402",
        "trust",
        "pricing",
        "agent-economy",
        "changes"
      ],
      "category": null,
      "price_usd": 0.01,
      "price_source": "registry",
      "provider_endpoints": 36,
      "networks": [
        "eip155:8453",
        "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp"
      ],
      "networks_source": "observed",
      "payment_protocols": [
        "x402"
      ],
      "access": {
        "observed": {
          "requires": "payment",
          "how": [
            "x402"
          ],
          "at": "2026-10-19T03:25:49.282Z",
          "method": "access/1"
        },
        "stated": null
      },
      "tools": null,
      "payment_model": {
        "value": "per_call",
        "source": "observed",
        "method": "access/1"
      },
      "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": "2026-10-17T02:25:25.000Z",
        "monitoring_days": 2.6,
        "limited_evidence": true,
        "checks_30d": 3,
        "passed_30d": 3,
        "missed_30d": 0,
        "pass_rate": 1,
        "freshness": "fresh",
        "last_check": {
          "at": "2026-10-19T03:25:49.282Z",
          "result": "payment_required",
          "passed": true,
          "http_status": 402,
          "duration_ms": 227
        }
      },
      "response_times": null,
      "registry_usage": {
        "calls_30d": 2,
        "unique_payers_30d": 2,
        "note": "Reported by the registry; not our measurement."
      },
      "payment_terms": {
        "current_since": "2026-10-17T03:15:55.332Z",
        "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": "2026-10-19T03:40:23.000Z",
        "listed": true
      },
      "links": {
        "page": "https://agentservicedirectory.com/services/cand_34aabf5551ef199f",
        "api": "https://agentservicedirectory.com/api/v1/services/cand_34aabf5551ef199f"
      }
    },
    {
      "id": "cand_ffca61c8df4e49f4",
      "tier": "discovered",
      "type": "api_endpoint",
      "name": "page-diff",
      "name_source": "registry",
      "branches": {
        "primary": "other",
        "secondary": [],
        "method_version": "placement-rules/3",
        "tree_version": "tree/3",
        "placed_at": "2026-10-18T00:35:28.000Z"
      },
      "package": null,
      "directory": {
        "in_directory": false,
        "method_version": "listing-criteria/4",
        "criteria": {
          "says_what_it_does": false,
          "answers_now": true,
          "registry_payers_at_least_5": false,
          "curated_catalogue": false,
          "not_computable_locally": true,
          "not_test_address": true
        }
      },
      "host": "intel.rallylive.ca",
      "provider": "rallylive.ca",
      "url": "https://intel.rallylive.ca/page/text-diff",
      "method": "POST",
      "templated_url": false,
      "operator": null,
      "tags": [
        "diff",
        "monitoring",
        "changes",
        "compare",
        "watch"
      ],
      "category": null,
      "price_usd": 0.01,
      "price_source": "registry",
      "provider_endpoints": 10991,
      "networks": [
        "eip155:8453",
        "eip155:84532"
      ],
      "networks_source": "observed",
      "payment_protocols": [
        "x402"
      ],
      "access": {
        "observed": {
          "requires": "payment",
          "how": [
            "x402"
          ],
          "at": "2026-10-18T18:35:11.780Z",
          "method": "access/1"
        },
        "stated": null
      },
      "tools": null,
      "payment_model": {
        "value": "per_call",
        "source": "observed",
        "method": "access/1"
      },
      "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": "2026-10-17T02:35:25.000Z",
        "monitoring_days": 2.6,
        "limited_evidence": true,
        "checks_30d": 2,
        "passed_30d": 2,
        "missed_30d": 0,
        "pass_rate": 1,
        "freshness": "fresh",
        "last_check": {
          "at": "2026-10-18T18:35:11.780Z",
          "result": "payment_required",
          "passed": true,
          "http_status": 402,
          "duration_ms": 18
        }
      },
      "response_times": {
        "method": "response-times/1",
        "operation": "payment_request",
        "check_method": "candidate-x402/5",
        "check_methods": [
          "candidate-x402/4",
          "candidate-x402/5"
        ],
        "timeout_ms": 10000,
        "computed_at": "2026-10-19T11:35:23.000Z",
        "windows": [
          {
            "window": "24h",
            "start": "2026-10-18T11:35:23.000Z",
            "end": "2026-10-19T11:35:23.000Z",
            "limited_history": false,
            "checks": 1,
            "timeouts": 0,
            "not_timed": 0,
            "median_ms": null,
            "p90_ms": null,
            "p95_ms": null,
            "p99_ms": null,
            "fastest_ms": null,
            "slowest_ms": null,
            "slowest_at": null,
            "p95_to_median": null
          },
          {
            "window": "7d",
            "start": "2026-10-17T02:35:25.000Z",
            "end": "2026-10-19T11:35:23.000Z",
            "limited_history": true,
            "checks": 2,
            "timeouts": 0,
            "not_timed": 0,
            "median_ms": null,
            "p90_ms": null,
            "p95_ms": null,
            "p99_ms": null,
            "fastest_ms": null,
            "slowest_ms": null,
            "slowest_at": null,
            "p95_to_median": null
          },
          {
            "window": "30d",
            "start": "2026-10-17T02:35:25.000Z",
            "end": "2026-10-19T11:35:23.000Z",
            "limited_history": true,
            "checks": 2,
            "timeouts": 0,
            "not_timed": 0,
            "median_ms": null,
            "p90_ms": null,
            "p95_ms": null,
            "p99_ms": null,
            "fastest_ms": null,
            "slowest_ms": null,
            "slowest_at": null,
            "p95_to_median": null
          }
        ],
        "measured_from": "eastern North America"
      },
      "registry_usage": null,
      "payment_terms": {
        "current_since": "2026-10-17T13:05:37.470Z",
        "changes_30d": 0,
        "changes_90d": 0,
        "pay_to_changes_90d": 0,
        "last_change_at": null,
        "last_change_kinds": [],
        "window_start": "2026-10-17T02:35:25.000Z",
        "limited": true
      },
      "registry_listing": {
        "last_seen_at": "2026-10-19T11:20:23.000Z",
        "listed": true
      },
      "links": {
        "page": "https://agentservicedirectory.com/services/cand_ffca61c8df4e49f4",
        "api": "https://agentservicedirectory.com/api/v1/services/cand_ffca61c8df4e49f4"
      }
    },
    {
      "id": "cand_44709d232cd63a0d",
      "tier": "discovered",
      "type": "api_endpoint",
      "name": "holdings-changes",
      "name_source": "registry",
      "branches": {
        "primary": "finance-data/company",
        "secondary": [],
        "method_version": "placement-rules/3",
        "tree_version": "tree/3",
        "placed_at": "2026-10-18T01:05:28.000Z"
      },
      "package": null,
      "directory": {
        "in_directory": false,
        "method_version": "listing-criteria/4",
        "criteria": {
          "says_what_it_does": false,
          "answers_now": true,
          "registry_payers_at_least_5": false,
          "curated_catalogue": false,
          "not_computable_locally": true,
          "not_test_address": true
        }
      },
      "host": "payai.agentstools.dev",
      "provider": "agentstools.dev",
      "url": "https://payai.agentstools.dev/holdings/changes",
      "method": "GET",
      "templated_url": false,
      "operator": null,
      "tags": [
        "13f",
        "institutional",
        "holdings",
        "changes",
        "quarter-over-quarter"
      ],
      "category": null,
      "price_usd": null,
      "price_source": null,
      "provider_endpoints": 511,
      "networks": [
        "eip155:8453",
        "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp"
      ],
      "networks_source": "observed",
      "payment_protocols": [
        "x402"
      ],
      "access": {
        "observed": {
          "requires": "payment",
          "how": [
            "x402"
          ],
          "at": "2026-10-19T05:15:51.280Z",
          "method": "access/1"
        },
        "stated": null
      },
      "tools": null,
      "payment_model": {
        "value": "per_call",
        "source": "observed",
        "method": "access/1"
      },
      "mainnet": true,
      "evidence": {
        "operations": 1,
        "check_interval_hours": 168,
        "check_interval": "weekly",
        "check_interval_rule": "Weekly: fewer than 5 payers, or no usage figure.",
        "schedule_tier": "weekly",
        "monitoring_since": "2026-10-17T02:40:25.000Z",
        "monitoring_days": 2.6,
        "limited_evidence": true,
        "checks_30d": 3,
        "passed_30d": 3,
        "missed_30d": 0,
        "pass_rate": 1,
        "freshness": "fresh",
        "last_check": {
          "at": "2026-10-19T05:15:51.280Z",
          "result": "payment_required",
          "passed": true,
          "http_status": 402,
          "duration_ms": 1040
        }
      },
      "response_times": {
        "method": "response-times/1",
        "operation": "payment_request",
        "check_method": "candidate-x402/6",
        "check_methods": [
          "candidate-x402/3",
          "candidate-x402/4",
          "candidate-x402/6"
        ],
        "timeout_ms": 10000,
        "computed_at": "2026-10-19T11:25:23.000Z",
        "windows": [
          {
            "window": "24h",
            "start": "2026-10-18T11:25:23.000Z",
            "end": "2026-10-19T11:25:23.000Z",
            "limited_history": false,
            "checks": 1,
            "timeouts": 0,
            "not_timed": 0,
            "median_ms": null,
            "p90_ms": null,
            "p95_ms": null,
            "p99_ms": null,
            "fastest_ms": null,
            "slowest_ms": null,
            "slowest_at": null,
            "p95_to_median": null
          },
          {
            "window": "7d",
            "start": "2026-10-17T02:40:25.000Z",
            "end": "2026-10-19T11:25:23.000Z",
            "limited_history": true,
            "checks": 3,
            "timeouts": 0,
            "not_timed": 0,
            "median_ms": null,
            "p90_ms": null,
            "p95_ms": null,
            "p99_ms": null,
            "fastest_ms": null,
            "slowest_ms": null,
            "slowest_at": null,
            "p95_to_median": null
          },
          {
            "window": "30d",
            "start": "2026-10-17T02:40:25.000Z",
            "end": "2026-10-19T11:25:23.000Z",
            "limited_history": true,
            "checks": 3,
            "timeouts": 0,
            "not_timed": 0,
            "median_ms": null,
            "p90_ms": null,
            "p95_ms": null,
            "p99_ms": null,
            "fastest_ms": null,
            "slowest_ms": null,
            "slowest_at": null,
            "p95_to_median": null
          }
        ],
        "measured_from": "eastern North America"
      },
      "registry_usage": null,
      "payment_terms": {
        "current_since": "2026-10-17T05:06:08.978Z",
        "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": "2026-10-19T11:25:23.000Z",
        "listed": true
      },
      "links": {
        "page": "https://agentservicedirectory.com/services/cand_44709d232cd63a0d",
        "api": "https://agentservicedirectory.com/api/v1/services/cand_44709d232cd63a0d"
      }
    },
    {
      "id": "cand_8e3ce9e3b9aa42bf",
      "tier": "discovered",
      "type": "api_endpoint",
      "name": "wAILand GDACS Changes",
      "name_source": "registry",
      "branches": {
        "primary": "places/earth-environment",
        "secondary": [],
        "method_version": "placement-ai/2",
        "tree_version": "tree/3",
        "placed_at": "2026-10-17T23:25:28.000Z"
      },
      "package": null,
      "directory": {
        "in_directory": false,
        "method_version": "listing-criteria/4",
        "criteria": {
          "says_what_it_does": false,
          "answers_now": true,
          "registry_payers_at_least_5": false,
          "curated_catalogue": false,
          "not_computable_locally": true,
          "not_test_address": true
        }
      },
      "host": "wailand.tailf99551.ts.net",
      "provider": "tailf99551.ts.net",
      "url": "https://wailand.tailf99551.ts.net/v1/disaster-changes",
      "method": "GET",
      "templated_url": false,
      "operator": null,
      "tags": [
        "disaster",
        "changes",
        "gdacs",
        "geo",
        "open-data"
      ],
      "category": null,
      "price_usd": 0.005,
      "price_source": "registry",
      "provider_endpoints": 3,
      "networks": [
        "eip155:8453"
      ],
      "networks_source": "observed",
      "payment_protocols": [
        "x402"
      ],
      "access": {
        "observed": {
          "requires": "payment",
          "how": [
            "x402"
          ],
          "at": "2026-10-19T03:31:02.739Z",
          "method": "access/1"
        },
        "stated": null
      },
      "tools": null,
      "payment_model": {
        "value": "per_call",
        "source": "observed",
        "method": "access/1"
      },
      "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": "2026-10-17T02:50:25.000Z",
        "monitoring_days": 2.6,
        "limited_evidence": true,
        "checks_30d": 3,
        "passed_30d": 3,
        "missed_30d": 0,
        "pass_rate": 1,
        "freshness": "fresh",
        "last_check": {
          "at": "2026-10-19T03:31:02.739Z",
          "result": "payment_required",
          "passed": true,
          "http_status": 402,
          "duration_ms": 2542
        }
      },
      "response_times": null,
      "registry_usage": {
        "calls_30d": 3,
        "unique_payers_30d": 3,
        "note": "Reported by the registry; not our measurement."
      },
      "payment_terms": {
        "current_since": "2026-10-17T03:20:54.437Z",
        "changes_30d": 0,
        "changes_90d": 0,
        "pay_to_changes_90d": 0,
        "last_change_at": null,
        "last_change_kinds": [],
        "window_start": "2026-10-17T02:50:25.000Z",
        "limited": true
      },
      "registry_listing": {
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    },
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