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  "title": "DirtRoad \u00b7 EVM Client Version Lookup",
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  "summary": "Fetch the version string and client identification for EVM blockchain nodes by chain identifier.",
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    "Identify blockchain infrastructure for debugging",
    "Monitor client diversity across EVM networks"
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  "example_prompt": "Get the client version for Base mainnet using CAIP-12 identifier",
  "example_request_body": {
    "chain": "eip155:8453"
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          "required": [
            "chain",
            "clientVersion"
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          "properties": {
            "chain": {
              "type": "string",
              "description": "CAIP-12 chain identifier"
            },
            "clientVersion": {
              "type": "string",
              "description": "Client version string"
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    "sameAs": "https://api.dirtroad.dev/tools/web3/evm/web3-client-version",
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    "description": "Retrieve blockchain client software version strings for EVM nodes. Returns client name, version, and build details. Pay $0.0001 USDC per call via x402 on Base.",
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    "applicationCategory": "data"
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}