{
  "api_status": "preview",
  "generated_at": "2026-10-17T03:33:40.590Z",
  "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": "multi-chain",
    "sort": "evidence",
    "limit": 50,
    "offset": 0
  },
  "total": 12,
  "items": [
    {
      "id": "cand_efb810e72dcd1143",
      "tier": "discovered",
      "type": "api_endpoint",
      "name": "Otto AI",
      "name_source": "registry",
      "host": "x402.ottoai.services",
      "url": "https://x402.ottoai.services/portfolio",
      "method": "GET",
      "templated_url": false,
      "operator": null,
      "tags": [
        "portfolio",
        "token-balances",
        "multi-chain",
        "yield-positions"
      ],
      "category": null,
      "price_usd": 0.001,
      "price_source": "registry",
      "provider_endpoints": 71,
      "networks": [
        "eip155:8453"
      ],
      "networks_source": "observed",
      "payment_protocols": [
        "x402"
      ],
      "mainnet": true,
      "evidence": {
        "operations": 1,
        "check_interval_hours": 24,
        "schedule_tier": "daily",
        "monitoring_since": "2026-10-16T16:07:55.000Z",
        "monitoring_days": 0.5,
        "limited_evidence": true,
        "checks_30d": 1,
        "passed_30d": 1,
        "missed_30d": 0,
        "pass_rate": 1,
        "freshness": "fresh",
        "last_check": {
          "at": "2026-10-17T03:05:42.113Z",
          "result": "payment_required",
          "passed": true,
          "http_status": 402,
          "duration_ms": 195
        }
      },
      "registry_usage": {
        "calls_30d": 13,
        "unique_payers_30d": 5,
        "note": "Reported by the registry; not our measurement."
      },
      "payment_terms": {
        "current_since": "2026-10-17T03:05:42.113Z",
        "changes_30d": 0,
        "changes_90d": 0,
        "pay_to_changes_90d": 0,
        "last_change_at": null,
        "last_change_kinds": [],
        "window_start": "2026-10-16T16:07:55.000Z",
        "limited": true
      },
      "registry_listing": {
        "last_seen_at": "2026-10-16T16:07:55.000Z",
        "listed": true
      },
      "links": {
        "page": "https://agentserviceatlas.com/services/cand_efb810e72dcd1143",
        "api": "https://agentserviceatlas.com/api/v1/services/cand_efb810e72dcd1143"
      }
    },
    {
      "id": "cand_936ef33711679647",
      "tier": "discovered",
      "type": "api_endpoint",
      "name": "BSM Price+Greeks",
      "name_source": "registry",
      "host": "derivatives-pricer-production.up.railway.app",
      "url": "https://derivatives-pricer-production.up.railway.app/v1/option/price",
      "method": "POST",
      "templated_url": false,
      "operator": null,
      "tags": [
        "options",
        "black-scholes",
        "greeks",
        "multi-chain",
        "usdc"
      ],
      "category": null,
      "price_usd": 0.01,
      "price_source": "registry",
      "provider_endpoints": 1,
      "networks": [
        "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "eip155:8453"
      ],
      "networks_source": "observed",
      "payment_protocols": [
        "x402"
      ],
      "mainnet": true,
      "evidence": {
        "operations": 1,
        "check_interval_hours": 24,
        "schedule_tier": "daily",
        "monitoring_since": "2026-10-17T02:55:25.000Z",
        "monitoring_days": 0,
        "limited_evidence": true,
        "checks_30d": 1,
        "passed_30d": 1,
        "missed_30d": 0,
        "pass_rate": 1,
        "freshness": "fresh",
        "last_check": {
          "at": "2026-10-17T03:21:07.951Z",
          "result": "payment_required",
          "passed": true,
          "http_status": 402,
          "duration_ms": 232
        }
      },
      "registry_usage": {
        "calls_30d": 3,
        "unique_payers_30d": 3,
        "note": "Reported by the registry; not our measurement."
      },
      "payment_terms": {
        "current_since": "2026-10-17T03:21:07.951Z",
        "changes_30d": 0,
        "changes_90d": 0,
        "pay_to_changes_90d": 0,
        "last_change_at": null,
        "last_change_kinds": [],
        "window_start": "2026-10-17T02:55:25.000Z",
        "limited": true
      },
      "registry_listing": {
        "last_seen_at": "2026-10-17T03:30:25.000Z",
        "listed": true
      },
      "links": {
        "page": "https://agentserviceatlas.com/services/cand_936ef33711679647",
        "api": "https://agentserviceatlas.com/api/v1/services/cand_936ef33711679647"
      }
    },
    {
      "id": "cand_bd15129afbdf988a",
      "tier": "discovered",
      "type": "api_endpoint",
      "name": "fee_estimate",
      "name_source": "registry",
      "host": "chainsscope.duckdns.org",
      "url": "https://chainsscope.duckdns.org/tools/fee-estimate",
      "method": "POST",
      "templated_url": false,
      "operator": null,
      "tags": [
        "blockchain",
        "gas-fees",
        "multi-chain",
        "crypto",
        "network-status"
      ],
      "category": null,
      "price_usd": 0.01,
      "price_source": "registry",
      "provider_endpoints": 2,
      "networks": [
        "eip155:8453",
        "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp"
      ],
      "networks_source": "observed",
      "payment_protocols": [],
      "mainnet": true,
      "evidence": {
        "operations": 1,
        "check_interval_hours": 24,
        "schedule_tier": "daily",
        "monitoring_since": "2026-10-16T17:07:55.000Z",
        "monitoring_days": 0.4,
        "limited_evidence": true,
        "checks_30d": 1,
        "passed_30d": 1,
        "missed_30d": 0,
        "pass_rate": 1,
        "freshness": "fresh",
        "last_check": {
          "at": "2026-10-17T02:21:01.747Z",
          "result": "payment_required",
          "passed": true,
          "http_status": 402,
          "duration_ms": 348
        }
      },
      "registry_usage": {
        "calls_30d": 2,
        "unique_payers_30d": 2,
        "note": "Reported by the registry; not our measurement."
      },
      "payment_terms": {
        "current_since": "2026-10-17T02:21:01.747Z",
        "changes_30d": 0,
        "changes_90d": 0,
        "pay_to_changes_90d": 0,
        "last_change_at": null,
        "last_change_kinds": [],
        "window_start": "2026-10-16T17:07:55.000Z",
        "limited": true
      },
      "registry_listing": {
        "last_seen_at": "2026-10-16T17:07:55.000Z",
        "listed": true
      },
      "links": {
        "page": "https://agentserviceatlas.com/services/cand_bd15129afbdf988a",
        "api": "https://agentserviceatlas.com/api/v1/services/cand_bd15129afbdf988a"
      }
    },
    {
      "id": "cand_44271d25fc540855",
      "tier": "discovered",
      "type": "api_endpoint",
      "name": "All 21 Chains Activity Snapshot",
      "name_source": "registry",
      "host": "www.blockchainiq.co",
      "url": "https://www.blockchainiq.co/api/x402/v1/networks",
      "method": "GET",
      "templated_url": false,
      "operator": null,
      "tags": [
        "on-chain",
        "multi-chain",
        "network-activity",
        "transactions",
        "crypto"
      ],
      "category": null,
      "price_usd": 0.02,
      "price_source": "registry",
      "provider_endpoints": 12,
      "networks": [
        "eip155:8453"
      ],
      "networks_source": "observed",
      "payment_protocols": [
        "x402"
      ],
      "mainnet": true,
      "evidence": {
        "operations": 1,
        "check_interval_hours": 24,
        "schedule_tier": "daily",
        "monitoring_since": "2026-10-17T02:50:25.000Z",
        "monitoring_days": 0,
        "limited_evidence": true,
        "checks_30d": 1,
        "passed_30d": 1,
        "missed_30d": 0,
        "pass_rate": 1,
        "freshness": "fresh",
        "last_check": {
          "at": "2026-10-17T03:20:49.564Z",
          "result": "payment_required",
          "passed": true,
          "http_status": 402,
          "duration_ms": 93
        }
      },
      "registry_usage": {
        "calls_30d": 1,
        "unique_payers_30d": 1,
        "note": "Reported by the registry; not our measurement."
      },
      "payment_terms": {
        "current_since": "2026-10-17T03:20:49.564Z",
        "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": {
        "last_seen_at": "2026-10-17T02:50:25.000Z",
        "listed": true
      },
      "links": {
        "page": "https://agentserviceatlas.com/services/cand_44271d25fc540855",
        "api": "https://agentserviceatlas.com/api/v1/services/cand_44271d25fc540855"
      }
    },
    {
      "id": "cand_9a0f5a3129d1ba65",
      "tier": "discovered",
      "type": "api_endpoint",
      "name": "address_activity",
      "name_source": "registry",
      "host": "chainsscope.duckdns.org",
      "url": "https://chainsscope.duckdns.org/tools/address-activity",
      "method": "POST",
      "templated_url": false,
      "operator": null,
      "tags": [
        "blockchain",
        "transaction-history",
        "multi-chain",
        "crypto",
        "on-chain-data"
      ],
      "category": null,
      "price_usd": 0.015,
      "price_source": "registry",
      "provider_endpoints": 2,
      "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": "2026-10-16T21:07:55.000Z",
        "monitoring_days": 0.3,
        "limited_evidence": true,
        "checks_30d": 1,
        "passed_30d": 1,
        "missed_30d": 0,
        "pass_rate": 1,
        "freshness": "fresh",
        "last_check": {
          "at": "2026-10-17T02:31:07.563Z",
          "result": "payment_required",
          "passed": true,
          "http_status": 402,
          "duration_ms": 219
        }
      },
      "registry_usage": {
        "calls_30d": 1,
        "unique_payers_30d": 1,
        "note": "Reported by the registry; not our measurement."
      },
      "payment_terms": {
        "current_since": "2026-10-17T02:31:07.563Z",
        "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_9a0f5a3129d1ba65",
        "api": "https://agentserviceatlas.com/api/v1/services/cand_9a0f5a3129d1ba65"
      }
    },
    {
      "id": "cand_0f5ad8cb74abca3b",
      "tier": "discovered",
      "type": "api_endpoint",
      "name": "Saylor Innovations Guide Library",
      "name_source": "registry",
      "host": "saylorinnovations.com",
      "url": "https://saylorinnovations.com/api/kb/crosschain-wallet-monitor",
      "method": "GET",
      "templated_url": false,
      "operator": null,
      "tags": [
        "cross-chain",
        "wallet-monitoring",
        "multi-chain"
      ],
      "category": null,
      "price_usd": 0.01,
      "price_source": "registry",
      "provider_endpoints": 703,
      "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": "2026-10-17T02:50:25.000Z",
        "monitoring_days": 0,
        "limited_evidence": true,
        "checks_30d": 1,
        "passed_30d": 1,
        "missed_30d": 0,
        "pass_rate": 1,
        "freshness": "fresh",
        "last_check": {
          "at": "2026-10-17T03:31:09.521Z",
          "result": "payment_required",
          "passed": true,
          "http_status": 402,
          "duration_ms": 224
        }
      },
      "registry_usage": null,
      "payment_terms": {
        "current_since": "2026-10-17T03:31:09.521Z",
        "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": {
        "last_seen_at": "2026-10-17T02:50:25.000Z",
        "listed": true
      },
      "links": {
        "page": "https://agentserviceatlas.com/services/cand_0f5ad8cb74abca3b",
        "api": "https://agentserviceatlas.com/api/v1/services/cand_0f5ad8cb74abca3b"
      }
    },
    {
      "id": "cand_b03a7ecda51facb9",
      "tier": "discovered",
      "type": "api_endpoint",
      "name": "EVM State Batch",
      "name_source": "registry",
      "host": "evmstate.com",
      "url": "https://evmstate.com/v1/state-batch",
      "method": "POST",
      "templated_url": false,
      "operator": null,
      "tags": [
        "evm",
        "wallet",
        "multi-chain",
        "token",
        "allowance"
      ],
      "category": null,
      "price_usd": 0.05,
      "price_source": "registry",
      "provider_endpoints": 3,
      "networks": [
        "eip155:8453"
      ],
      "networks_source": "registry",
      "payment_protocols": [],
      "mainnet": null,
      "evidence": {
        "operations": 1,
        "check_interval_hours": 24,
        "schedule_tier": "daily",
        "monitoring_since": "2026-10-17T03:10:25.000Z",
        "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": 6,
        "unique_payers_30d": 3,
        "note": "Reported by the registry; not our measurement."
      },
      "payment_terms": null,
      "registry_listing": {
        "last_seen_at": "2026-10-17T03:10:25.000Z",
        "listed": true
      },
      "links": {
        "page": "https://agentserviceatlas.com/services/cand_b03a7ecda51facb9",
        "api": "https://agentserviceatlas.com/api/v1/services/cand_b03a7ecda51facb9"
      }
    },
    {
      "id": "cand_06cabe8bed6c9ae1",
      "tier": "discovered",
      "type": "api_endpoint",
      "name": "wallet-and-gas-lookup",
      "name_source": "registry",
      "host": "x402.agentindex.world",
      "url": "https://x402.agentindex.world/wallet-intelligence",
      "method": "GET",
      "templated_url": false,
      "operator": null,
      "tags": [
        "wallet-intelligence",
        "multi-chain",
        "gas"
      ],
      "category": null,
      "price_usd": 0.001,
      "price_source": "registry",
      "provider_endpoints": 104,
      "networks": [
        "eip155:8453"
      ],
      "networks_source": "registry",
      "payment_protocols": [],
      "mainnet": null,
      "evidence": {
        "operations": 1,
        "check_interval_hours": 24,
        "schedule_tier": "daily",
        "monitoring_since": "2026-10-17T03:10:25.000Z",
        "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": 3,
        "unique_payers_30d": 3,
        "note": "Reported by the registry; not our measurement."
      },
      "payment_terms": null,
      "registry_listing": {
        "last_seen_at": "2026-10-17T03:10:25.000Z",
        "listed": true
      },
      "links": {
        "page": "https://agentserviceatlas.com/services/cand_06cabe8bed6c9ae1",
        "api": "https://agentserviceatlas.com/api/v1/services/cand_06cabe8bed6c9ae1"
      }
    },
    {
      "id": "cand_a97970c4ad98cffe",
      "tier": "discovered",
      "type": "api_endpoint",
      "name": "GEDX402 Image",
      "name_source": "registry",
      "host": "image.gedx402.com",
      "url": "https://image.gedx402.com/v1/image/:model",
      "method": "POST",
      "templated_url": true,
      "operator": null,
      "tags": [
        "image",
        "diffusion",
        "inference",
        "usdc",
        "multi-chain"
      ],
      "category": null,
      "price_usd": 0.01,
      "price_source": "registry",
      "provider_endpoints": 1,
      "networks": [
        "eip155:8453"
      ],
      "networks_source": "registry",
      "payment_protocols": [],
      "mainnet": null,
      "evidence": {
        "operations": 1,
        "check_interval_hours": 24,
        "schedule_tier": "daily",
        "monitoring_since": "2026-10-16T16:07:55.000Z",
        "monitoring_days": 0.5,
        "limited_evidence": true,
        "checks_30d": 1,
        "passed_30d": 0,
        "missed_30d": 0,
        "pass_rate": 0,
        "freshness": "fresh",
        "last_check": {
          "at": "2026-10-16T16:08:19.430Z",
          "result": "client_error",
          "passed": false,
          "http_status": 404,
          "duration_ms": 723
        }
      },
      "registry_usage": {
        "calls_30d": 3,
        "unique_payers_30d": 2,
        "note": "Reported by the registry; not our measurement."
      },
      "payment_terms": null,
      "registry_listing": {
        "last_seen_at": "2026-10-16T16:07:55.000Z",
        "listed": true
      },
      "links": {
        "page": "https://agentserviceatlas.com/services/cand_a97970c4ad98cffe",
        "api": "https://agentserviceatlas.com/api/v1/services/cand_a97970c4ad98cffe"
      }
    },
    {
      "id": "cand_2157023bca262ff3",
      "tier": "discovered",
      "type": "api_endpoint",
      "name": "EVM State Batch",
      "name_source": "registry",
      "host": "evmstate.com",
      "url": "https://evmstate.com/v1/state-batch/50",
      "method": "POST",
      "templated_url": false,
      "operator": null,
      "tags": [
        "evm",
        "wallet",
        "multi-chain",
        "token",
        "allowance"
      ],
      "category": null,
      "price_usd": 0.1,
      "price_source": "registry",
      "provider_endpoints": 3,
      "networks": [
        "eip155:8453"
      ],
      "networks_source": "registry",
      "payment_protocols": [],
      "mainnet": null,
      "evidence": {
        "operations": 1,
        "check_interval_hours": 24,
        "schedule_tier": "daily",
        "monitoring_since": "2026-10-17T03:15:25.000Z",
        "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": 3,
        "unique_payers_30d": 1,
        "note": "Reported by the registry; not our measurement."
      },
      "payment_terms": null,
      "registry_listing": {
        "last_seen_at": "2026-10-17T03:15:25.000Z",
        "listed": true
      },
      "links": {
        "page": "https://agentserviceatlas.com/services/cand_2157023bca262ff3",
        "api": "https://agentserviceatlas.com/api/v1/services/cand_2157023bca262ff3"
      }
    },
    {
      "id": "cand_c243b75d0f1837e3",
      "tier": "discovered",
      "type": "api_endpoint",
      "name": "EVM State Batch",
      "name_source": "registry",
      "host": "evmstate.com",
      "url": "https://evmstate.com/v1/state-batch/100",
      "method": "POST",
      "templated_url": false,
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      },
      "registry_usage": {
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        "note": "Reported by the registry; not our measurement."
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      "registry_listing": {
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        "listed": true
      },
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      "registry_listing": {
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}