{
  "api": "mainnet-reference-api",
  "version": "v1",
  "schema_version": "1.0.0",
  "status": "stable-static",
  "dataset": "rpc-probes",
  "updated": "April 30, 2026",
  "mode": "operator-check-only",
  "notes": [
    "This report only checks whether eth_chainId matches the expected chain ID for EVM-style RPC endpoints.",
    "It is not published by the site and must not be interpreted as uptime, latency, privacy, decentralization, or production reliability data.",
    "Failures can be caused by public endpoint rate limits, temporary network errors, or providers that block generic probes."
  ],
  "generatedAt": "2026-05-01T05:36:26.217Z",
  "counts": {
    "candidates": 25,
    "ok": 25,
    "failed": 0,
    "skipped": 1
  },
  "results": [
    {
      "chainId": "base",
      "name": "Base",
      "rpc": "https://mainnet.base.org",
      "expected": "0x2105",
      "observed": "0x2105",
      "ok": true,
      "httpStatus": 200,
      "checkedAt": "2026-05-01T05:36:20.370Z",
      "note": "eth_chainId only; not an uptime, latency, privacy, or production reliability measurement."
    },
    {
      "chainId": "ethereum",
      "name": "Ethereum",
      "rpc": "https://ethereum-rpc.publicnode.com",
      "expected": "0x1",
      "observed": "0x1",
      "ok": true,
      "httpStatus": 200,
      "checkedAt": "2026-05-01T05:36:20.773Z",
      "note": "eth_chainId only; not an uptime, latency, privacy, or production reliability measurement."
    },
    {
      "chainId": "monad",
      "name": "Monad",
      "rpc": "https://rpc.monad.xyz",
      "expected": "0x8f",
      "observed": "0x8f",
      "ok": true,
      "httpStatus": 200,
      "checkedAt": "2026-05-01T05:36:20.956Z",
      "note": "eth_chainId only; not an uptime, latency, privacy, or production reliability measurement."
    },
    {
      "chainId": "megaeth",
      "name": "MegaETH",
      "rpc": "https://mainnet.megaeth.com/rpc",
      "expected": "0x10e6",
      "observed": "0x10e6",
      "ok": true,
      "httpStatus": 200,
      "checkedAt": "2026-05-01T05:36:21.080Z",
      "note": "eth_chainId only; not an uptime, latency, privacy, or production reliability measurement."
    },
    {
      "chainId": "arbitrum-one",
      "name": "Arbitrum One",
      "rpc": "https://arb1.arbitrum.io/rpc",
      "expected": "0xa4b1",
      "observed": "0xa4b1",
      "ok": true,
      "httpStatus": 200,
      "checkedAt": "2026-05-01T05:36:21.202Z",
      "note": "eth_chainId only; not an uptime, latency, privacy, or production reliability measurement."
    },
    {
      "chainId": "bnb-smart-chain",
      "name": "BNB Smart Chain",
      "rpc": "https://bsc-dataseed.bnbchain.org",
      "expected": "0x38",
      "observed": "0x38",
      "ok": true,
      "httpStatus": 200,
      "checkedAt": "2026-05-01T05:36:21.374Z",
      "note": "eth_chainId only; not an uptime, latency, privacy, or production reliability measurement."
    },
    {
      "chainId": "avalanche-c-chain",
      "name": "Avalanche C-Chain",
      "rpc": "https://api.avax.network/ext/bc/C/rpc",
      "expected": "0xa86a",
      "observed": "0xa86a",
      "ok": true,
      "httpStatus": 200,
      "checkedAt": "2026-05-01T05:36:21.772Z",
      "note": "eth_chainId only; not an uptime, latency, privacy, or production reliability measurement."
    },
    {
      "chainId": "gnosis",
      "name": "Gnosis",
      "rpc": "https://rpc.gnosischain.com",
      "expected": "0x64",
      "observed": "0x64",
      "ok": true,
      "httpStatus": 200,
      "checkedAt": "2026-05-01T05:36:21.883Z",
      "note": "eth_chainId only; not an uptime, latency, privacy, or production reliability measurement."
    },
    {
      "chainId": "celo",
      "name": "Celo",
      "rpc": "https://forno.celo.org",
      "expected": "0xa4ec",
      "observed": "0xa4ec",
      "ok": true,
      "httpStatus": 200,
      "checkedAt": "2026-05-01T05:36:22.185Z",
      "note": "eth_chainId only; not an uptime, latency, privacy, or production reliability measurement."
    },
    {
      "chainId": "linea",
      "name": "Linea",
      "rpc": "https://rpc.linea.build",
      "expected": "0xe708",
      "observed": "0xe708",
      "ok": true,
      "httpStatus": 200,
      "checkedAt": "2026-05-01T05:36:22.348Z",
      "note": "eth_chainId only; not an uptime, latency, privacy, or production reliability measurement."
    },
    {
      "chainId": "op-mainnet",
      "name": "OP Mainnet",
      "rpc": "https://mainnet.optimism.io",
      "expected": "0xa",
      "observed": "0xa",
      "ok": true,
      "httpStatus": 200,
      "checkedAt": "2026-05-01T05:36:22.528Z",
      "note": "eth_chainId only; not an uptime, latency, privacy, or production reliability measurement."
    },
    {
      "chainId": "scroll",
      "name": "Scroll",
      "rpc": "https://rpc.scroll.io",
      "expected": "0x82750",
      "observed": "0x82750",
      "ok": true,
      "httpStatus": 200,
      "checkedAt": "2026-05-01T05:36:22.800Z",
      "note": "eth_chainId only; not an uptime, latency, privacy, or production reliability measurement."
    },
    {
      "chainId": "zksync-era",
      "name": "ZKsync Era",
      "rpc": "https://mainnet.era.zksync.io",
      "expected": "0x144",
      "observed": "0x144",
      "ok": true,
      "httpStatus": 200,
      "checkedAt": "2026-05-01T05:36:22.919Z",
      "note": "eth_chainId only; not an uptime, latency, privacy, or production reliability measurement."
    },
    {
      "chainId": "blast",
      "name": "Blast",
      "rpc": "https://rpc.blast.io",
      "expected": "0x13e31",
      "observed": "0x13e31",
      "ok": true,
      "httpStatus": 200,
      "checkedAt": "2026-05-01T05:36:23.086Z",
      "note": "eth_chainId only; not an uptime, latency, privacy, or production reliability measurement."
    },
    {
      "chainId": "polygon-pos",
      "name": "Polygon PoS",
      "rpc": "https://polygon.drpc.org",
      "expected": "0x89",
      "observed": "0x89",
      "ok": true,
      "httpStatus": 200,
      "checkedAt": "2026-05-01T05:36:23.358Z",
      "note": "eth_chainId only; not an uptime, latency, privacy, or production reliability measurement."
    },
    {
      "chainId": "berachain",
      "name": "Berachain",
      "rpc": "https://rpc.berachain.com",
      "expected": "0x138de",
      "observed": "0x138de",
      "ok": true,
      "httpStatus": 200,
      "checkedAt": "2026-05-01T05:36:23.470Z",
      "note": "eth_chainId only; not an uptime, latency, privacy, or production reliability measurement."
    },
    {
      "chainId": "sonic",
      "name": "Sonic",
      "rpc": "https://rpc.soniclabs.com",
      "expected": "0x92",
      "observed": "0x92",
      "ok": true,
      "httpStatus": 200,
      "checkedAt": "2026-05-01T05:36:23.733Z",
      "note": "eth_chainId only; not an uptime, latency, privacy, or production reliability measurement."
    },
    {
      "chainId": "unichain",
      "name": "Unichain",
      "rpc": "https://mainnet.unichain.org",
      "expected": "0x82",
      "observed": "0x82",
      "ok": true,
      "httpStatus": 200,
      "checkedAt": "2026-05-01T05:36:24.278Z",
      "note": "eth_chainId only; not an uptime, latency, privacy, or production reliability measurement."
    },
    {
      "chainId": "world-chain",
      "name": "World Chain",
      "rpc": "https://worldchain-mainnet.g.alchemy.com/public",
      "expected": "0x1e0",
      "observed": "0x1e0",
      "ok": true,
      "httpStatus": 200,
      "checkedAt": "2026-05-01T05:36:24.449Z",
      "note": "eth_chainId only; not an uptime, latency, privacy, or production reliability measurement."
    },
    {
      "chainId": "mode",
      "name": "Mode",
      "rpc": "https://mainnet.mode.network",
      "expected": "0x868b",
      "observed": "0x868b",
      "ok": true,
      "httpStatus": 200,
      "checkedAt": "2026-05-01T05:36:24.709Z",
      "note": "eth_chainId only; not an uptime, latency, privacy, or production reliability measurement."
    },
    {
      "chainId": "ink",
      "name": "Ink",
      "rpc": "https://rpc-gel.inkonchain.com",
      "expected": "0xdef1",
      "observed": "0xdef1",
      "ok": true,
      "httpStatus": 200,
      "checkedAt": "2026-05-01T05:36:25.028Z",
      "note": "eth_chainId only; not an uptime, latency, privacy, or production reliability measurement."
    },
    {
      "chainId": "soneium",
      "name": "Soneium",
      "rpc": "https://rpc.soneium.org",
      "expected": "0x74c",
      "observed": "0x74c",
      "ok": true,
      "httpStatus": 200,
      "checkedAt": "2026-05-01T05:36:25.305Z",
      "note": "eth_chainId only; not an uptime, latency, privacy, or production reliability measurement."
    },
    {
      "chainId": "fraxtal",
      "name": "Fraxtal",
      "rpc": "https://rpc.frax.com",
      "expected": "0xfc",
      "observed": "0xfc",
      "ok": true,
      "httpStatus": 200,
      "checkedAt": "2026-05-01T05:36:25.618Z",
      "note": "eth_chainId only; not an uptime, latency, privacy, or production reliability measurement."
    },
    {
      "chainId": "moonbeam",
      "name": "Moonbeam",
      "rpc": "https://rpc.api.moonbeam.network",
      "expected": "0x504",
      "observed": "0x504",
      "ok": true,
      "httpStatus": 200,
      "checkedAt": "2026-05-01T05:36:25.732Z",
      "note": "eth_chainId only; not an uptime, latency, privacy, or production reliability measurement."
    },
    {
      "chainId": "mantle",
      "name": "Mantle",
      "rpc": "https://rpc.mantle.xyz",
      "expected": "0x1388",
      "observed": "0x1388",
      "ok": true,
      "httpStatus": 200,
      "checkedAt": "2026-05-01T05:36:25.917Z",
      "note": "eth_chainId only; not an uptime, latency, privacy, or production reliability measurement."
    }
  ]
}