{
  "api_status": "preview",
  "generated_at": "2026-10-17T03:00:23.905Z",
  "notes": [
    "Exact definitions of every field (unit, window, source): https://agentserviceatlas.com/fields",
    "reviewed entries have a sourced trust profile 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": "fda",
    "sort": "evidence",
    "limit": 50,
    "offset": 0
  },
  "total": 26,
  "items": [
    {
      "id": "cand_8151a65aa054d658",
      "tier": "discovered",
      "type": "api_endpoint",
      "name": "x402Pulse",
      "name_source": "registry",
      "host": "www.x402pulse.dev",
      "url": "https://www.x402pulse.dev/v1/health/hospitals",
      "method": "GET",
      "templated_url": false,
      "operator": null,
      "tags": [
        "health",
        "fda",
        "pharma",
        "hospitals",
        "x402pulse"
      ],
      "category": null,
      "price_usd": 0.0084,
      "price_source": "registry",
      "provider_endpoints": 37,
      "networks": [
        "eip155:8453",
        "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp"
      ],
      "networks_source": "observed",
      "payment_protocols": [
        "x402"
      ],
      "mainnet": true,
      "evidence": {
        "operations": 1,
        "check_interval_hours": 24,
        "schedule_tier": "daily",
        "monitoring_since": "2026-10-17T02:10:47.000Z",
        "monitoring_days": 0,
        "limited_evidence": true,
        "checks_30d": 1,
        "passed_30d": 1,
        "missed_30d": 0,
        "pass_rate": 1,
        "freshness": "fresh",
        "last_check": {
          "at": "2026-10-17T02:50:59.273Z",
          "result": "payment_required",
          "passed": true,
          "http_status": 402,
          "duration_ms": 195
        }
      },
      "registry_usage": {
        "calls_30d": 14,
        "unique_payers_30d": 4,
        "note": "Reported by the registry; not our measurement."
      },
      "payment_terms": {
        "current_since": "2026-10-17T02:50:59.273Z",
        "changes_30d": 0,
        "changes_90d": 0,
        "pay_to_changes_90d": 0,
        "last_change_at": null,
        "last_change_kinds": [],
        "window_start": "2026-10-17T02:10:47.000Z",
        "limited": true
      },
      "registry_listing": {
        "last_seen_at": "2026-10-17T02:10:47.000Z",
        "listed": true
      },
      "links": {
        "page": "https://agentserviceatlas.com/services/cand_8151a65aa054d658",
        "api": "https://agentserviceatlas.com/api/v1/services/cand_8151a65aa054d658"
      }
    },
    {
      "id": "cand_653017092a778131",
      "tier": "discovered",
      "type": "api_endpoint",
      "name": "FDA Recalls & Adverse Events",
      "name_source": "registry",
      "host": "api.kadec0.xyz",
      "url": "https://api.kadec0.xyz/v1/fda",
      "method": "GET",
      "templated_url": false,
      "operator": null,
      "tags": [
        "fda",
        "drug-recalls",
        "food-safety",
        "health",
        "government"
      ],
      "category": null,
      "price_usd": 0.02,
      "price_source": "registry",
      "provider_endpoints": 43,
      "networks": [
        "eip155:8453"
      ],
      "networks_source": "observed",
      "payment_protocols": [
        "x402"
      ],
      "mainnet": true,
      "evidence": {
        "operations": 1,
        "check_interval_hours": 24,
        "schedule_tier": "daily",
        "monitoring_since": "2026-10-16T13:07:55.000Z",
        "monitoring_days": 0.6,
        "limited_evidence": true,
        "checks_30d": 1,
        "passed_30d": 1,
        "missed_30d": 0,
        "pass_rate": 1,
        "freshness": "fresh",
        "last_check": {
          "at": "2026-10-17T02:50:52.508Z",
          "result": "payment_required",
          "passed": true,
          "http_status": 402,
          "duration_ms": 231
        }
      },
      "registry_usage": {
        "calls_30d": 15,
        "unique_payers_30d": 3,
        "note": "Reported by the registry; not our measurement."
      },
      "payment_terms": {
        "current_since": "2026-10-17T02:50:52.508Z",
        "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": "2026-10-16T13:07:55.000Z",
        "listed": true
      },
      "links": {
        "page": "https://agentserviceatlas.com/services/cand_653017092a778131",
        "api": "https://agentserviceatlas.com/api/v1/services/cand_653017092a778131"
      }
    },
    {
      "id": "cand_40dba9a4e98acd2e",
      "tier": "discovered",
      "type": "api_endpoint",
      "name": "FindPulse",
      "name_source": "registry",
      "host": "findpulse.theaslangroupllc.com",
      "url": "https://findpulse.theaslangroupllc.com/api/find/recall",
      "method": "GET",
      "templated_url": false,
      "operator": null,
      "tags": [
        "product-recall",
        "safety",
        "cpsc",
        "fda",
        "shopping-agent"
      ],
      "category": null,
      "price_usd": 0.05,
      "price_source": "registry",
      "provider_endpoints": 13,
      "networks": [
        "eip155:8453",
        "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "eip155:137",
        "eip155:42161",
        "eip155:480",
        "eip155:143",
        "eip155:196",
        "eip155:999",
        "algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73k",
        "xrpl:0",
        "eip155:56"
      ],
      "networks_source": "observed",
      "payment_protocols": [
        "x402"
      ],
      "mainnet": true,
      "evidence": {
        "operations": 1,
        "check_interval_hours": 24,
        "schedule_tier": "daily",
        "monitoring_since": "2026-10-16T20:07:55.000Z",
        "monitoring_days": 0.3,
        "limited_evidence": true,
        "checks_30d": 1,
        "passed_30d": 1,
        "missed_30d": 0,
        "pass_rate": 1,
        "freshness": "fresh",
        "last_check": {
          "at": "2026-10-17T02:31:03.519Z",
          "result": "payment_required",
          "passed": true,
          "http_status": 402,
          "duration_ms": 134
        }
      },
      "registry_usage": {
        "calls_30d": 1,
        "unique_payers_30d": 1,
        "note": "Reported by the registry; not our measurement."
      },
      "payment_terms": {
        "current_since": "2026-10-17T02:31:03.519Z",
        "changes_30d": 0,
        "changes_90d": 0,
        "pay_to_changes_90d": 0,
        "last_change_at": null,
        "last_change_kinds": [],
        "window_start": "2026-10-16T20:07:55.000Z",
        "limited": true
      },
      "registry_listing": {
        "last_seen_at": "2026-10-16T20:07:55.000Z",
        "listed": true
      },
      "links": {
        "page": "https://agentserviceatlas.com/services/cand_40dba9a4e98acd2e",
        "api": "https://agentserviceatlas.com/api/v1/services/cand_40dba9a4e98acd2e"
      }
    },
    {
      "id": "cand_6d01f9858a663589",
      "tier": "discovered",
      "type": "api_endpoint",
      "name": "SafePulse",
      "name_source": "registry",
      "host": "safepulse.theaslangroupllc.com",
      "url": "https://safepulse.theaslangroupllc.com/api/safe/food",
      "method": "GET",
      "templated_url": false,
      "operator": null,
      "tags": [
        "food-safety",
        "fda",
        "usda",
        "drug-recall",
        "consumer-agent"
      ],
      "category": null,
      "price_usd": 0.08,
      "price_source": "registry",
      "provider_endpoints": 8,
      "networks": [
        "eip155:8453",
        "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "eip155:137",
        "eip155:42161",
        "eip155:480",
        "eip155:143",
        "eip155:196",
        "eip155:999",
        "algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73k",
        "xrpl:0",
        "eip155:56"
      ],
      "networks_source": "observed",
      "payment_protocols": [
        "x402"
      ],
      "mainnet": true,
      "evidence": {
        "operations": 1,
        "check_interval_hours": 24,
        "schedule_tier": "daily",
        "monitoring_since": "2026-10-16T19:07:55.000Z",
        "monitoring_days": 0.3,
        "limited_evidence": true,
        "checks_30d": 1,
        "passed_30d": 1,
        "missed_30d": 0,
        "pass_rate": 1,
        "freshness": "fresh",
        "last_check": {
          "at": "2026-10-17T02:35:48.516Z",
          "result": "payment_required",
          "passed": true,
          "http_status": 402,
          "duration_ms": 166
        }
      },
      "registry_usage": {
        "calls_30d": 1,
        "unique_payers_30d": 1,
        "note": "Reported by the registry; not our measurement."
      },
      "payment_terms": {
        "current_since": "2026-10-17T02:35:48.516Z",
        "changes_30d": 0,
        "changes_90d": 0,
        "pay_to_changes_90d": 0,
        "last_change_at": null,
        "last_change_kinds": [],
        "window_start": "2026-10-16T19:07:55.000Z",
        "limited": true
      },
      "registry_listing": {
        "last_seen_at": "2026-10-16T19:07:55.000Z",
        "listed": true
      },
      "links": {
        "page": "https://agentserviceatlas.com/services/cand_6d01f9858a663589",
        "api": "https://agentserviceatlas.com/api/v1/services/cand_6d01f9858a663589"
      }
    },
    {
      "id": "cand_89d9ffa496cc0a1a",
      "tier": "discovered",
      "type": "api_endpoint",
      "name": "realcite-drug",
      "name_source": "registry",
      "host": "goodsong.dev",
      "url": "https://goodsong.dev/verify/drug",
      "method": "POST",
      "templated_url": false,
      "operator": null,
      "tags": [
        "fda",
        "drug",
        "pharma",
        "recall",
        "regulatory"
      ],
      "category": null,
      "price_usd": 0.005,
      "price_source": "registry",
      "provider_endpoints": 8,
      "networks": [
        "eip155:8453"
      ],
      "networks_source": "observed",
      "payment_protocols": [
        "x402"
      ],
      "mainnet": true,
      "evidence": {
        "operations": 1,
        "check_interval_hours": 24,
        "schedule_tier": "daily",
        "monitoring_since": "2026-10-16T21:07:55.000Z",
        "monitoring_days": 0.2,
        "limited_evidence": true,
        "checks_30d": 1,
        "passed_30d": 1,
        "missed_30d": 0,
        "pass_rate": 1,
        "freshness": "fresh",
        "last_check": {
          "at": "2026-10-17T02:35:54.146Z",
          "result": "payment_required",
          "passed": true,
          "http_status": 402,
          "duration_ms": 103
        }
      },
      "registry_usage": {
        "calls_30d": 1,
        "unique_payers_30d": 1,
        "note": "Reported by the registry; not our measurement."
      },
      "payment_terms": {
        "current_since": "2026-10-17T02:35:54.146Z",
        "changes_30d": 0,
        "changes_90d": 0,
        "pay_to_changes_90d": 0,
        "last_change_at": null,
        "last_change_kinds": [],
        "window_start": "2026-10-16T21:07:55.000Z",
        "limited": true
      },
      "registry_listing": {
        "last_seen_at": "2026-10-16T21:07:55.000Z",
        "listed": true
      },
      "links": {
        "page": "https://agentserviceatlas.com/services/cand_89d9ffa496cc0a1a",
        "api": "https://agentserviceatlas.com/api/v1/services/cand_89d9ffa496cc0a1a"
      }
    },
    {
      "id": "cand_092553912242fddf",
      "tier": "discovered",
      "type": "api_endpoint",
      "name": "Pocket Network",
      "name_source": "registry",
      "host": "agent.pocket.network",
      "url": "https://agent.pocket.network/v1/fda",
      "method": "POST",
      "templated_url": false,
      "operator": null,
      "tags": [
        "health",
        "fda",
        "rest"
      ],
      "category": null,
      "price_usd": 0.005,
      "price_source": "registry",
      "provider_endpoints": 103,
      "networks": [
        "eip155:8453"
      ],
      "networks_source": "registry",
      "payment_protocols": [],
      "mainnet": null,
      "evidence": {
        "operations": 1,
        "check_interval_hours": 24,
        "schedule_tier": "daily",
        "monitoring_since": "2026-10-17T02:05:47.000Z",
        "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": 69,
        "unique_payers_30d": 5,
        "note": "Reported by the registry; not our measurement."
      },
      "payment_terms": null,
      "registry_listing": {
        "last_seen_at": "2026-10-17T02:05:47.000Z",
        "listed": true
      },
      "links": {
        "page": "https://agentserviceatlas.com/services/cand_092553912242fddf",
        "api": "https://agentserviceatlas.com/api/v1/services/cand_092553912242fddf"
      }
    },
    {
      "id": "cand_493fbf2b8e62e931",
      "tier": "discovered",
      "type": "api_endpoint",
      "name": "x402Pulse",
      "name_source": "registry",
      "host": "www.x402pulse.dev",
      "url": "https://www.x402pulse.dev/v1/health/recalls",
      "method": "GET",
      "templated_url": false,
      "operator": null,
      "tags": [
        "health",
        "fda",
        "pharma",
        "hospitals",
        "x402pulse"
      ],
      "category": null,
      "price_usd": 0.0014,
      "price_source": "registry",
      "provider_endpoints": 37,
      "networks": [
        "eip155:8453",
        "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp"
      ],
      "networks_source": "registry",
      "payment_protocols": [],
      "mainnet": null,
      "evidence": {
        "operations": 1,
        "check_interval_hours": 24,
        "schedule_tier": "daily",
        "monitoring_since": "2026-10-17T02:10:47.000Z",
        "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": 17,
        "unique_payers_30d": 5,
        "note": "Reported by the registry; not our measurement."
      },
      "payment_terms": null,
      "registry_listing": {
        "last_seen_at": "2026-10-17T02:10:47.000Z",
        "listed": true
      },
      "links": {
        "page": "https://agentserviceatlas.com/services/cand_493fbf2b8e62e931",
        "api": "https://agentserviceatlas.com/api/v1/services/cand_493fbf2b8e62e931"
      }
    },
    {
      "id": "cand_11176dd1964e4793",
      "tier": "discovered",
      "type": "api_endpoint",
      "name": "x402Pulse",
      "name_source": "registry",
      "host": "www.x402pulse.dev",
      "url": "https://www.x402pulse.dev/v1/health/safety-signals",
      "method": "GET",
      "templated_url": false,
      "operator": null,
      "tags": [
        "health",
        "fda",
        "pharma",
        "hospitals",
        "x402pulse"
      ],
      "category": null,
      "price_usd": 0.014,
      "price_source": "registry",
      "provider_endpoints": 37,
      "networks": [
        "eip155:8453",
        "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp"
      ],
      "networks_source": "registry",
      "payment_protocols": [],
      "mainnet": null,
      "evidence": {
        "operations": 1,
        "check_interval_hours": 24,
        "schedule_tier": "daily",
        "monitoring_since": "2026-10-17T02:10:47.000Z",
        "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": 14,
        "unique_payers_30d": 4,
        "note": "Reported by the registry; not our measurement."
      },
      "payment_terms": null,
      "registry_listing": {
        "last_seen_at": "2026-10-17T02:10:47.000Z",
        "listed": true
      },
      "links": {
        "page": "https://agentserviceatlas.com/services/cand_11176dd1964e4793",
        "api": "https://agentserviceatlas.com/api/v1/services/cand_11176dd1964e4793"
      }
    },
    {
      "id": "cand_d9fe445adf52a26c",
      "tier": "discovered",
      "type": "api_endpoint",
      "name": "x402Pulse",
      "name_source": "registry",
      "host": "www.x402pulse.dev",
      "url": "https://www.x402pulse.dev/v1/health/drug-label",
      "method": "GET",
      "templated_url": false,
      "operator": null,
      "tags": [
        "health",
        "fda",
        "pharma",
        "hospitals",
        "x402pulse"
      ],
      "category": null,
      "price_usd": 0.0014,
      "price_source": "registry",
      "provider_endpoints": 37,
      "networks": [
        "eip155:8453",
        "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp"
      ],
      "networks_source": "registry",
      "payment_protocols": [],
      "mainnet": null,
      "evidence": {
        "operations": 1,
        "check_interval_hours": 24,
        "schedule_tier": "daily",
        "monitoring_since": "2026-10-17T02:10:47.000Z",
        "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": 14,
        "unique_payers_30d": 4,
        "note": "Reported by the registry; not our measurement."
      },
      "payment_terms": null,
      "registry_listing": {
        "last_seen_at": "2026-10-17T02:10:47.000Z",
        "listed": true
      },
      "links": {
        "page": "https://agentserviceatlas.com/services/cand_d9fe445adf52a26c",
        "api": "https://agentserviceatlas.com/api/v1/services/cand_d9fe445adf52a26c"
      }
    },
    {
      "id": "cand_dfeb2f5ca7d07d2e",
      "tier": "discovered",
      "type": "api_endpoint",
      "name": "x402Pulse",
      "name_source": "registry",
      "host": "www.x402pulse.dev",
      "url": "https://www.x402pulse.dev/v1/health/drug-approvals",
      "method": "GET",
      "templated_url": false,
      "operator": null,
      "tags": [
        "health",
        "fda",
        "pharma",
        "hospitals",
        "x402pulse"
      ],
      "category": null,
      "price_usd": 0.0028,
      "price_source": "registry",
      "provider_endpoints": 37,
      "networks": [
        "eip155:8453",
        "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp"
      ],
      "networks_source": "registry",
      "payment_protocols": [],
      "mainnet": null,
      "evidence": {
        "operations": 1,
        "check_interval_hours": 24,
        "schedule_tier": "daily",
        "monitoring_since": "2026-10-17T02:10:47.000Z",
        "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": 14,
        "unique_payers_30d": 4,
        "note": "Reported by the registry; not our measurement."
      },
      "payment_terms": null,
      "registry_listing": {
        "last_seen_at": "2026-10-17T02:10:47.000Z",
        "listed": true
      },
      "links": {
        "page": "https://agentserviceatlas.com/services/cand_dfeb2f5ca7d07d2e",
        "api": "https://agentserviceatlas.com/api/v1/services/cand_dfeb2f5ca7d07d2e"
      }
    },
    {
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      },
      "links": {
        "page": "https://agentserviceatlas.com/services/cand_ed0a962ef1eb9910",
        "api": "https://agentserviceatlas.com/api/v1/services/cand_ed0a962ef1eb9910"
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    },
    {
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      "links": {
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      "links": {
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    },
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      "links": {
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      "name_source": "registry",
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        "eip155:137",
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      "links": {
        "page": "https://agentserviceatlas.com/services/cand_35d23d08cbf962c2",
        "api": "https://agentserviceatlas.com/api/v1/services/cand_35d23d08cbf962c2"
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    },
    {
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      "name_source": "registry",
      "host": "safepulse.theaslangroupllc.com",
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        "nhtsa",
        "consumer-agent"
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        "eip155:480",
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        "eip155:999",
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      "links": {
        "page": "https://agentserviceatlas.com/services/cand_a35eaa4406e7b7ee",
        "api": "https://agentserviceatlas.com/api/v1/services/cand_a35eaa4406e7b7ee"
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    },
    {
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      "type": "api_endpoint",
      "name": "catalyst-calendar",
      "name_source": "registry",
      "host": "payai.agentstools.dev",
      "url": "https://payai.agentstools.dev/catalyst/calendar",
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        "fda",
        "catalyst",
        "adcomm"
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      "links": {
        "page": "https://agentserviceatlas.com/services/cand_c2a5f715e02629b3",
        "api": "https://agentserviceatlas.com/api/v1/services/cand_c2a5f715e02629b3"
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    },
    {
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      "type": "api_endpoint",
      "name": "catalyst-filing",
      "name_source": "registry",
      "host": "payai.agentstools.dev",
      "url": "https://payai.agentstools.dev/catalyst/filing",
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      "links": {
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    },
    {
      "id": "cand_8aa3e70dab68bfd1",
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      "type": "api_endpoint",
      "name": "catalyst-upcoming",
      "name_source": "registry",
      "host": "payai.agentstools.dev",
      "url": "https://payai.agentstools.dev/catalyst/upcoming",
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      "tags": [
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        "fda",
        "catalyst",
        "adcomm"
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      },
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      "links": {
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        "api": "https://agentserviceatlas.com/api/v1/services/cand_8aa3e70dab68bfd1"
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    },
    {
      "id": "cand_1516c3a384cd06d7",
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      "type": "api_endpoint",
      "name": "fda-enforcement",
      "name_source": "registry",
      "host": "payai.agentstools.dev",
      "url": "https://payai.agentstools.dev/fda/enforcement",
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      "templated_url": false,
      "operator": null,
      "tags": [
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        "enforcement",
        "warning-letter",
        "injunction",
        "seizure"
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      "networks": [
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