{
  "api_status": "preview",
  "generated_at": "2026-10-17T09:07:23.952Z",
  "notes": [
    "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": {
    "host": "app.difficat.com",
    "sort": "evidence",
    "limit": 50,
    "offset": 0
  },
  "total": 4,
  "items": [
    {
      "id": "cand_9033c6d3c2775a71",
      "tier": "discovered",
      "type": "mcp_server",
      "name": "DiffiCat",
      "name_source": "registry",
      "branches": null,
      "host": "app.difficat.com",
      "url": "https://app.difficat.com/mcp",
      "method": "GET",
      "templated_url": false,
      "operator": null,
      "tags": [],
      "category": null,
      "price_usd": null,
      "price_source": null,
      "provider_endpoints": 4,
      "networks": [],
      "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": "2026-10-17T04:07:31.999Z",
        "monitoring_days": 0.2,
        "limited_evidence": true,
        "checks_30d": 1,
        "passed_30d": 1,
        "missed_30d": 0,
        "pass_rate": 1,
        "freshness": "fresh",
        "last_check": {
          "at": "2026-10-17T04:26:17.051Z",
          "result": "client_error",
          "passed": true,
          "http_status": 405,
          "duration_ms": 474
        }
      },
      "registry_usage": null,
      "payment_terms": null,
      "registry_listing": {
        "last_seen_at": "2026-10-17T04:07:31.999Z",
        "listed": true
      },
      "links": {
        "page": "https://agentservicedirectory.com/services/cand_9033c6d3c2775a71",
        "api": "https://agentservicedirectory.com/api/v1/services/cand_9033c6d3c2775a71"
      }
    },
    {
      "id": "cand_06421897d0e35b8b",
      "tier": "discovered",
      "type": "api_endpoint",
      "name": "DiffiCat",
      "name_source": "registry",
      "branches": {
        "primary": "web/screenshots",
        "secondary": [
          "web/browser"
        ],
        "method_version": "placement-rules/1",
        "tree_version": "tree/1",
        "placed_at": "2026-10-17T08:40:28.000Z"
      },
      "host": "app.difficat.com",
      "url": "https://app.difficat.com/api/v1/screenshots",
      "method": "POST",
      "templated_url": false,
      "operator": null,
      "tags": [
        "screenshot",
        "visual-regression",
        "web"
      ],
      "category": null,
      "price_usd": 0.02,
      "price_source": "registry",
      "provider_endpoints": 4,
      "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": "2026-10-17T02:25:25.000Z",
        "monitoring_days": 0.3,
        "limited_evidence": true,
        "checks_30d": 1,
        "passed_30d": 0,
        "missed_30d": 0,
        "pass_rate": 0,
        "freshness": "fresh",
        "last_check": {
          "at": "2026-10-17T03:05:48.044Z",
          "result": "client_error",
          "passed": false,
          "http_status": 400,
          "duration_ms": 417
        }
      },
      "registry_usage": {
        "calls_30d": 8,
        "unique_payers_30d": 3,
        "note": "Reported by the registry; not our measurement."
      },
      "payment_terms": null,
      "registry_listing": {
        "last_seen_at": "2026-10-17T08:45:28.000Z",
        "listed": true
      },
      "links": {
        "page": "https://agentservicedirectory.com/services/cand_06421897d0e35b8b",
        "api": "https://agentservicedirectory.com/api/v1/services/cand_06421897d0e35b8b"
      }
    },
    {
      "id": "cand_4023790d789c1643",
      "tier": "discovered",
      "type": "api_endpoint",
      "name": "DiffiCat",
      "name_source": "registry",
      "branches": null,
      "host": "app.difficat.com",
      "url": "https://app.difficat.com/api/v1/discover",
      "method": "POST",
      "templated_url": false,
      "operator": null,
      "tags": [
        "migration",
        "crawler",
        "sitemap"
      ],
      "category": null,
      "price_usd": 0.05,
      "price_source": "registry",
      "provider_endpoints": 4,
      "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": "2026-10-17T02:25:25.000Z",
        "monitoring_days": 0.3,
        "limited_evidence": true,
        "checks_30d": 1,
        "passed_30d": 0,
        "missed_30d": 0,
        "pass_rate": 0,
        "freshness": "fresh",
        "last_check": {
          "at": "2026-10-17T03:05:48.032Z",
          "result": "client_error",
          "passed": false,
          "http_status": 400,
          "duration_ms": 382
        }
      },
      "registry_usage": {
        "calls_30d": 8,
        "unique_payers_30d": 3,
        "note": "Reported by the registry; not our measurement."
      },
      "payment_terms": null,
      "registry_listing": {
        "last_seen_at": "2026-10-17T08:45:28.000Z",
        "listed": true
      },
      "links": {
        "page": "https://agentservicedirectory.com/services/cand_4023790d789c1643",
        "api": "https://agentservicedirectory.com/api/v1/services/cand_4023790d789c1643"
      }
    },
    {
      "id": "cand_6330fecaf740cda8",
      "tier": "discovered",
      "type": "api_endpoint",
      "name": "DiffiCat",
      "name_source": "registry",
      "branches": null,
      "host": "app.difficat.com",
      "url": "https://app.difficat.com/api/v1/jobs",
      "method": "POST",
      "templated_url": false,
      "operator": null,
      "tags": [
        "migration",
        "visual-regression",
        "testing"
      ],
      "category": null,
      "price_usd": 0.1,
      "price_source": "registry",
      "provider_endpoints": 4,
      "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": "2026-10-17T02:20:25.000Z",
        "monitoring_days": 0.3,
        "limited_evidence": true,
        "checks_30d": 1,
        "passed_30d": 0,
        "missed_30d": 0,
        "pass_rate": 0,
        "freshness": "fresh",
        "last_check": {
          "at": "2026-10-17T02:55:52.696Z",
          "result": "client_error",
          "passed": false,
          "http_status": 400,
          "duration_ms": 380
        }
      },
      "registry_usage": {
        "calls_30d": 8,
        "unique_payers_30d": 2,
        "note": "Reported by the registry; not our measurement."
      },
      "payment_terms": null,
      "registry_listing": {
        "last_seen_at": "2026-10-17T08:25:28.000Z",
        "listed": true
      },
      "links": {
        "page": "https://agentservicedirectory.com/services/cand_6330fecaf740cda8",
        "api": "https://agentservicedirectory.com/api/v1/services/cand_6330fecaf740cda8"
      }
    }
  ]
}