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LogicNodes EVM Nonce Lookup
x402
LogicNodes EVM Nonce Lookup is a paid API for AI agents from logicnodes.io, paid per call via x402, $0.001/call, status unknown (last checked 2026-10-30).
Returns the current transaction nonce for an EVM address at a specified block on any supported EVM chain
Price / call$0.001
Success—
StatusUnknown
How this service works
Exact answers for AI agents: 40+ tools for EVM chains and Aptos, gas on 14 chains, never a guess. Free tier; pay per call in USDC (x402) on 13 networks.
Output
A JSON object with ok: true, the tool name 'evm_nonce', and the numeric nonce (transaction count) for the specified address at the requested block on the given EVM chain.
Example use cases
Pre-transaction nonce check for DeFi bot
“Before I submit my next transaction on Arbitrum (eip155:42161), fetch the current nonce for my wallet 0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045 at the latest block so I can set it correctly.”
Historical nonce audit at specific block
“What was the nonce for address 0xAbCd1234567890AbCd1234567890AbCd12345678 on Ethereum mainnet (eip155:1) at block 19000000?”
Cross-chain account activity comparison
“Check the nonce for 0x742d35Cc6634C0532925a3b844Bc454e4438f44e on both Polygon (eip155:137) and Optimism (eip155:10) at the safe block — I want to see which chain this wallet has been more active on.”
Technical details
Endpoint
POSThttps://logicnodes.io/paid/v1/tools/evm_nonce?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need an authoritative, exact nonce for an EVM address before constructing or sequencing transactions, especially when chain-specific CAIP-2 precision and block-level accuracy matter. Prefer it over generic RPC calls when you need a reliable managed service with deterministic pricing per call and multi-chain support from a single API.
Side effects
- Invalid or non-checksummed mixed-case address returns an error
- Chain specified by name instead of CAIP-2 or numeric ID is refused
- Unsupported chain ID returns an error
- Invalid block tag or out-of-range block number returns an error
- Payment failure (insufficient USDC) blocks the call
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| block | string | "latest" (default), "safe", "finalized", or a decimal block number. Every value in the answer is read at this one block |
| chain | string | EVM CAIP-2 chain id such as eip155:8453, or a bare chain id number as a string. Chain names are refused. |
| address | string | 0x + 40 hex digits (EIP-55 checksum enforced when mixed-case) |
Output
Schema · Response
{
"type": "json",
"example": {
"ok": true,
"tool": "evm_nonce"
}
}Tags
x402
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