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LogicNodes Gas Estimate
x402
LogicNodes Gas Estimate 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 current gas price estimates for a specified EVM or Aptos chain at one or more confidence levels
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, and gas price data for the requested chain broken down by the requested confidence level percentiles. For EVM chains, this includes per-percentile gas prices (e.g. base fee, priority fee) reflecting real-time network conditions. The response is structured and machine-readable, suitable for direct use in transaction construction.
Example use cases
Pre-flight gas check for DeFi transaction
“Before I submit this swap on Arbitrum (eip155:42161), what are the gas prices at the 50th and 90th confidence levels so I can pick the right fee?”
Multi-chain gas dashboard
“Give me current gas estimates for Ethereum (eip155:1), Base (eip155:8453), and Optimism (eip155:10) at the 75th confidence level so I can decide which chain is cheapest right now.”
Reliable NFT mint gas setting
“I want to mint an NFT on Polygon (eip155:137) and need a gas price that gives me 99% confidence it'll confirm quickly — what should I set?”
Technical details
Endpoint
POSThttps://logicnodes.io/paid/v1/tools/gas_estimate?utm_source=zero.xyzWhen to prefer
Use this endpoint when an AI agent needs exact, real-time gas price data for EVM-compatible chains or Aptos before constructing or submitting a transaction. It is especially valuable when confidence-level breakdowns are needed to tune transaction fees for speed vs. cost trade-offs. Prefer it over generic RPC calls or web scraping when you need a structured, reliable, AI-agent-friendly response with multi-chain support in a single API call. The pay-per-call USDC model (x402) makes it suitable for agents that need to avoid subscription overhead.
Side effects
- Chain ID provided as a name (e.g. 'base') rather than CAIP-2 or numeric format — API refuses and returns an error
- Unsupported chain ID — only 14 supported chains are available
- Confidence level out of range (must be 1–99 integer) — validation error returned
- More than 12 confidence levels requested — exceeds maxItems limit
- Payment not attached or insufficient USDC — 402 payment required response
- Malformed request body — 400 bad request
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| chain | — | CAIP-2 chain id such as eip155:8453 (Base) or aptos:1; a bare EVM chain id number also works. Chain names like "base" are refused. |
| confidenceLevels | array | EVM only |
Output
Schema · Response
{
"type": "json",
"example": {
"ok": true,
"tool": "gas_estimate"
}
}Tags
x402
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