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EVM RPC Client Software Identifier
x402
EVM RPC Client Software Identifier is a paid API for AI agents from twin.unykorn.org, paid per call via x402, $0.001/call, status unknown (last checked 2026-10-01).
Identifies which client software (e.g. Geth, Nethermind, Erigon) is running behind an EVM-compatible RPC endpoint for a given blockchain network
Price / call$0.001
Success—
StatusUnknown
How this service works
Which client software is behind an RPC endpoint — Genesis402 / UnyKorn Operator Network
Output
Returns a JSON object indicating whether the request succeeded, the type of result ('evm-node-info'), details about the detected client software running behind the specified EVM chain's RPC endpoint, a generation timestamp, and a payment receipt including transaction hash, USD amount, and a receipt ID.
Example use cases
Auditing node diversity on Ethereum
“I'm doing a node diversity audit — can you check which client software is behind the Ethereum RPC endpoint? I want to know if it's Geth, Nethermind, Erigon, or something else.”
Debugging Base chain connectivity
“We're having weird RPC behavior on Base — can you probe the Base node and tell me which client software is running behind it so we know what we're dealing with?”
Choosing a reliable Polygon RPC provider
“Before I commit to this RPC provider, can you check which client software is powering their Polygon node? I want to know if it's a client known for stability.”
Technical details
Endpoint
POSThttps://twin.unykorn.org/evm-node-info?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need to programmatically identify or audit the specific EVM client software (Geth, Nethermind, Erigon, Besu, etc.) behind an RPC node for one of the 10 supported chains. Ideal for infrastructure audits, debugging RPC anomalies, or researching client diversity across networks. Prefer this over manual RPC introspection when you need a structured, paid API response with a receipt for compliance or logging.
Side effects
- Unsupported chain enum value returns validation error
- Node unreachable or timeout results in error response
- RPC endpoint does not expose client version info (some nodes hide it), leading to null or unknown client result
- Payment failure via x402 protocol prevents request from completing
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| params | object |
Output
Schema · Response
{
"type": "json",
"example": {
"ok": true,
"type": "evm-node-info",
"receipt": {
"tx_hash": "0x<64hex>",
"amount_usd": 0.001,
"receipt_id": "g402-<16hex>"
},
"generated_at": "<iso8601>"
}
}Tags
x402
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