{
  "api_status": "preview",
  "generated_at": "2026-10-16T20:39:29.587Z",
  "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 daily.",
    "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": "gas",
    "sort": "evidence",
    "limit": 50,
    "offset": 0
  },
  "total": 11,
  "items": [
    {
      "id": "cand_65ca100f81612613",
      "tier": "discovered",
      "type": "api_endpoint",
      "name": "Vibe Springs",
      "name_source": "registry",
      "host": "vibesprings.net",
      "url": "https://vibesprings.net/api/market-pulse",
      "method": "GET",
      "templated_url": false,
      "operator": null,
      "tags": [
        "market",
        "crypto",
        "forex",
        "defi",
        "gas"
      ],
      "category": null,
      "price_usd": 0.05,
      "price_source": "registry",
      "provider_endpoints": 18,
      "networks": [
        "eip155:8453"
      ],
      "networks_source": "observed",
      "mainnet": true,
      "evidence": {
        "operations": 1,
        "check_interval_hours": 24,
        "monitoring_since": "2026-10-16T17:07:55.000Z",
        "monitoring_days": 0.1,
        "limited_evidence": true,
        "checks_30d": 1,
        "passed_30d": 1,
        "missed_30d": 0,
        "pass_rate": 1,
        "freshness": "fresh",
        "last_check": {
          "at": "2026-10-16T17:08:20.355Z",
          "result": "payment_required",
          "passed": true,
          "http_status": 402,
          "duration_ms": 402
        }
      },
      "registry_usage": {
        "calls_30d": 2,
        "unique_payers_30d": 2,
        "note": "Reported by the registry; not our measurement."
      },
      "payment_terms": {
        "current_since": "2026-10-16T17:08:20.355Z",
        "changes_30d": 0,
        "changes_90d": 0,
        "pay_to_changes_90d": 0,
        "last_change_at": null,
        "last_change_kinds": [],
        "window_start": "2026-10-17T00:00:00.000Z",
        "limited": true
      },
      "registry_listing": {
        "last_seen_at": "2026-10-16T17:07:55.000Z",
        "listed": true
      },
      "links": {
        "page": "https://agentserviceatlas.com/services/cand_65ca100f81612613",
        "api": "https://agentserviceatlas.com/api/v1/services/cand_65ca100f81612613"
      }
    },
    {
      "id": "cand_f02fb09ca81cee38",
      "tier": "discovered",
      "type": "api_endpoint",
      "name": "Vibe Springs",
      "name_source": "registry",
      "host": "vibesprings.net",
      "url": "https://vibesprings.net/api/gas",
      "method": "GET",
      "templated_url": false,
      "operator": null,
      "tags": [
        "gas",
        "fees",
        "ethereum",
        "base",
        "arbitrum"
      ],
      "category": null,
      "price_usd": 0.001,
      "price_source": "registry",
      "provider_endpoints": 18,
      "networks": [
        "eip155:8453"
      ],
      "networks_source": "observed",
      "mainnet": true,
      "evidence": {
        "operations": 1,
        "check_interval_hours": 24,
        "monitoring_since": "2026-10-16T17:07:55.000Z",
        "monitoring_days": 0.1,
        "limited_evidence": true,
        "checks_30d": 1,
        "passed_30d": 1,
        "missed_30d": 0,
        "pass_rate": 1,
        "freshness": "fresh",
        "last_check": {
          "at": "2026-10-16T17:08:20.571Z",
          "result": "payment_required",
          "passed": true,
          "http_status": 402,
          "duration_ms": 229
        }
      },
      "registry_usage": {
        "calls_30d": 2,
        "unique_payers_30d": 2,
        "note": "Reported by the registry; not our measurement."
      },
      "payment_terms": {
        "current_since": "2026-10-16T17:08:20.571Z",
        "changes_30d": 0,
        "changes_90d": 0,
        "pay_to_changes_90d": 0,
        "last_change_at": null,
        "last_change_kinds": [],
        "window_start": "2026-10-17T00:00:00.000Z",
        "limited": true
      },
      "registry_listing": {
        "last_seen_at": "2026-10-16T17:07:55.000Z",
        "listed": true
      },
      "links": {
        "page": "https://agentserviceatlas.com/services/cand_f02fb09ca81cee38",
        "api": "https://agentserviceatlas.com/api/v1/services/cand_f02fb09ca81cee38"
      }
    },
    {
      "id": "cand_9515e812463c20bc",
      "tier": "discovered",
      "type": "api_endpoint",
      "name": "Gas snapshot (slow / standard /",
      "name_source": "registry",
      "host": "agent402.tools",
      "url": "https://agent402.tools/api/gas-snapshot",
      "method": "POST",
      "templated_url": false,
      "operator": null,
      "tags": [
        "crypto",
        "gas",
        "fees",
        "evm",
        "transaction"
      ],
      "category": null,
      "price_usd": 0.005,
      "price_source": "registry",
      "provider_endpoints": 35,
      "networks": [
        "eip155:8453",
        "eip155:137",
        "eip155:42161",
        "eip155:143",
        "eip155:43114",
        "eip155:1329",
        "eip155:10",
        "eip155:4663",
        "eip155:42220"
      ],
      "networks_source": "registry",
      "mainnet": null,
      "evidence": {
        "operations": 1,
        "check_interval_hours": 24,
        "monitoring_since": "2026-10-16T18:07:55.000Z",
        "monitoring_days": 0.1,
        "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": 63,
        "unique_payers_30d": 5,
        "note": "Reported by the registry; not our measurement."
      },
      "payment_terms": null,
      "registry_listing": {
        "last_seen_at": "2026-10-16T18:07:55.000Z",
        "listed": true
      },
      "links": {
        "page": "https://agentserviceatlas.com/services/cand_9515e812463c20bc",
        "api": "https://agentserviceatlas.com/api/v1/services/cand_9515e812463c20bc"
      }
    },
    {
      "id": "cand_0d54949017fb519e",
      "tier": "discovered",
      "type": "api_endpoint",
      "name": "Gas Price",
      "name_source": "registry",
      "host": "x402-echo-service.onrender.com",
      "url": "https://x402-echo-service.onrender.com/chain/gas",
      "method": "POST",
      "templated_url": false,
      "operator": null,
      "tags": [
        "gas",
        "fees",
        "base",
        "eip1559",
        "onchain"
      ],
      "category": null,
      "price_usd": 0.001,
      "price_source": "registry",
      "provider_endpoints": 5,
      "networks": [
        "eip155:8453"
      ],
      "networks_source": "registry",
      "mainnet": null,
      "evidence": {
        "operations": 1,
        "check_interval_hours": 24,
        "monitoring_since": "2026-10-16T13:07:55.000Z",
        "monitoring_days": 0.3,
        "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": 4,
        "unique_payers_30d": 4,
        "note": "Reported by the registry; not our measurement."
      },
      "payment_terms": null,
      "registry_listing": {
        "last_seen_at": "2026-10-16T13:07:55.000Z",
        "listed": true
      },
      "links": {
        "page": "https://agentserviceatlas.com/services/cand_0d54949017fb519e",
        "api": "https://agentserviceatlas.com/api/v1/services/cand_0d54949017fb519e"
      }
    },
    {
      "id": "cand_ab77d6ae6a437872",
      "tier": "discovered",
      "type": "api_endpoint",
      "name": "Onchain Query API",
      "name_source": "registry",
      "host": "chain.cyberwarex.com",
      "url": "https://chain.cyberwarex.com/gas",
      "method": "GET",
      "templated_url": false,
      "operator": null,
      "tags": [
        "gas",
        "gas-fees",
        "evm",
        "blockchain",
        "transaction-cost"
      ],
      "category": null,
      "price_usd": 0.002,
      "price_source": "registry",
      "provider_endpoints": 7,
      "networks": [
        "eip155:8453"
      ],
      "networks_source": "registry",
      "mainnet": null,
      "evidence": {
        "operations": 1,
        "check_interval_hours": 24,
        "monitoring_since": "2026-10-16T13:07:55.000Z",
        "monitoring_days": 0.3,
        "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": 4,
        "unique_payers_30d": 4,
        "note": "Reported by the registry; not our measurement."
      },
      "payment_terms": null,
      "registry_listing": {
        "last_seen_at": "2026-10-16T13:07:55.000Z",
        "listed": true
      },
      "links": {
        "page": "https://agentserviceatlas.com/services/cand_ab77d6ae6a437872",
        "api": "https://agentserviceatlas.com/api/v1/services/cand_ab77d6ae6a437872"
      }
    },
    {
      "id": "cand_3de955cc6d22c118",
      "tier": "discovered",
      "type": "api_endpoint",
      "name": "ArbiPulse",
      "name_source": "registry",
      "host": "arbipulse.theaslangroupllc.com",
      "url": "https://arbipulse.theaslangroupllc.com/api/calculator",
      "method": "GET",
      "templated_url": false,
      "operator": null,
      "tags": [
        "arbitrage",
        "profit-calculator",
        "fees",
        "slippage",
        "gas"
      ],
      "category": null,
      "price_usd": 0.02,
      "price_source": "registry",
      "provider_endpoints": 7,
      "networks": [
        "eip155:8453",
        "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "eip155:4663",
        "eip155:137",
        "eip155:42161",
        "eip155:480",
        "eip155:143",
        "eip155:196",
        "eip155:999"
      ],
      "networks_source": "registry",
      "mainnet": null,
      "evidence": {
        "operations": 1,
        "check_interval_hours": 24,
        "monitoring_since": "2026-10-16T14:07:55.000Z",
        "monitoring_days": 0.3,
        "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": "2026-10-16T14:07:55.000Z",
        "listed": true
      },
      "links": {
        "page": "https://agentserviceatlas.com/services/cand_3de955cc6d22c118",
        "api": "https://agentserviceatlas.com/api/v1/services/cand_3de955cc6d22c118"
      }
    },
    {
      "id": "cand_7938b2d31f195e4b",
      "tier": "discovered",
      "type": "api_endpoint",
      "name": "BizIntel API",
      "name_source": "registry",
      "host": "bizintel-api.hahavoid0.workers.dev",
      "url": "https://bizintel-api.hahavoid0.workers.dev/finance/gas-ethereum",
      "method": "POST",
      "templated_url": false,
      "operator": null,
      "tags": [
        "finance",
        "gas"
      ],
      "category": null,
      "price_usd": 0.01,
      "price_source": "registry",
      "provider_endpoints": 7,
      "networks": [
        "eip155:8453",
        "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp"
      ],
      "networks_source": "registry",
      "mainnet": null,
      "evidence": {
        "operations": 1,
        "check_interval_hours": 24,
        "monitoring_since": "2026-10-16T14:07:55.000Z",
        "monitoring_days": 0.3,
        "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": "2026-10-16T14:07:55.000Z",
        "listed": true
      },
      "links": {
        "page": "https://agentserviceatlas.com/services/cand_7938b2d31f195e4b",
        "api": "https://agentserviceatlas.com/api/v1/services/cand_7938b2d31f195e4b"
      }
    },
    {
      "id": "cand_5060477da1d2b509",
      "tier": "discovered",
      "type": "api_endpoint",
      "name": "Phoenix Zero L2 Health Oracle",
      "name_source": "registry",
      "host": "rtt.phoenix-ai.work",
      "url": "https://rtt.phoenix-ai.work/api/v1/health",
      "method": "GET",
      "templated_url": false,
      "operator": null,
      "tags": [
        "chain-health",
        "rpc",
        "latency",
        "gas",
        "stall"
      ],
      "category": null,
      "price_usd": 0.01,
      "price_source": "registry",
      "provider_endpoints": 3,
      "networks": [
        "eip155:8453",
        "eip155:137",
        "eip155:42161"
      ],
      "networks_source": "registry",
      "mainnet": null,
      "evidence": {
        "operations": 1,
        "check_interval_hours": 24,
        "monitoring_since": "2026-10-16T14:07:55.000Z",
        "monitoring_days": 0.3,
        "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": 4,
        "unique_payers_30d": 3,
        "note": "Reported by the registry; not our measurement."
      },
      "payment_terms": null,
      "registry_listing": {
        "last_seen_at": "2026-10-16T14:07:55.000Z",
        "listed": true
      },
      "links": {
        "page": "https://agentserviceatlas.com/services/cand_5060477da1d2b509",
        "api": "https://agentserviceatlas.com/api/v1/services/cand_5060477da1d2b509"
      }
    },
    {
      "id": "cand_9190d026562ef830",
      "tier": "discovered",
      "type": "api_endpoint",
      "name": "Phoenix Zero Safe Check",
      "name_source": "registry",
      "host": "rtt.phoenix-ai.work",
      "url": "https://rtt.phoenix-ai.work/api/v1/safe",
      "method": "GET",
      "templated_url": false,
      "operator": null,
      "tags": [
        "safe-to-send",
        "transaction",
        "gas",
        "rpc",
        "chain-health"
      ],
      "category": null,
      "price_usd": 0.01,
      "price_source": "registry",
      "provider_endpoints": 3,
      "networks": [
        "eip155:8453",
        "eip155:137",
        "eip155:42161"
      ],
      "networks_source": "registry",
      "mainnet": null,
      "evidence": {
        "operations": 1,
        "check_interval_hours": 24,
        "monitoring_since": "2026-10-16T14:07:55.000Z",
        "monitoring_days": 0.3,
        "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": 4,
        "unique_payers_30d": 3,
        "note": "Reported by the registry; not our measurement."
      },
      "payment_terms": null,
      "registry_listing": {
        "last_seen_at": "2026-10-16T14:07:55.000Z",
        "listed": true
      },
      "links": {
        "page": "https://agentserviceatlas.com/services/cand_9190d026562ef830",
        "api": "https://agentserviceatlas.com/api/v1/services/cand_9190d026562ef830"
      }
    },
    {
      "id": "cand_ceeaff93cd7d336f",
      "tier": "discovered",
      "type": "api_endpoint",
      "name": "M2M Sentinel",
      "name_source": "registry",
      "host": "api.m2msentinel.com",
      "url": "https://api.m2msentinel.com/v1/gas/fees",
      "method": "GET",
      "templated_url": false,
      "operator": null,
      "tags": [
        "base",
        "gas",
        "fees",
        "provenance"
      ],
      "category": null,
      "price_usd": 0.005,
      "price_source": "registry",
      "provider_endpoints": 2,
      "networks": [
        "eip155:8453"
      ],
      "networks_source": "registry",
      "mainnet": null,
      "evidence": {
        "operations": 1,
        "check_interval_hours": 24,
        "monitoring_since": "2026-10-16T16:07:55.000Z",
        "monitoring_days": 0.2,
        "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": 2,
        "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_ceeaff93cd7d336f",
        "api": "https://agentserviceatlas.com/api/v1/services/cand_ceeaff93cd7d336f"
      }
    },
    {
      "id": "cand_34a0c1231cab3fe7",
      "tier": "discovered",
      "type": "api_endpoint",
      "name": "x402 Gas Price Oracle",
      "name_source": "registry",
      "host": "x402tap.com",
      "url": "https://x402tap.com/api/gas-price",
      "method": "GET",
      "templated_url": false,
      "operator": null,
      "tags": [
        "gas",
        "ethereum",
        "on-chain",
        "blockchain",
        "fees"
      ],
      "category": null,
      "price_usd": 0.01,
      "price_source": "registry",
      "provider_endpoints": 15,
      "networks": [
        "eip155:8453",
        "eip155:137",
        "eip155:42161",
        "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp"
      ],
      "networks_source": "registry",
      "mainnet": null,
      "evidence": {
        "operations": 1,
        "check_interval_hours": 24,
        "monitoring_since": "2026-10-16T18:07:55.000Z",
        "monitoring_days": 0.1,
        "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": 2,
        "unique_payers_30d": 1,
        "note": "Reported by the registry; not our measurement."
      },
      "payment_terms": null,
      "registry_listing": {
        "last_seen_at": "2026-10-16T18:07:55.000Z",
        "listed": true
      },
      "links": {
        "page": "https://agentserviceatlas.com/services/cand_34a0c1231cab3fe7",
        "api": "https://agentserviceatlas.com/api/v1/services/cand_34a0c1231cab3fe7"
      }
    }
  ]
}