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EVM Gas Fee Estimator
x402
EVM Gas Fee Estimator is a paid API for AI agents from www.amnt.io, paid per call via x402, $0.02/call, status unknown (last checked 2026-09-15).
Estimates optimal gas fees and total transaction cost for common Ethereum-compatible (EVM) operations using explicit assumptions and clear math.
Price / call$0.02
Success—
StatusUnknown
How this service works
Gas Fee Estimator - Estimates optimal EVM gas fees and total transaction cost for common Ethereum-compatible operations, using explicit assumptions and clear math.
Output
A structured text response containing estimated gas price (in gwei), estimated gas units for the requested operation type, total transaction cost in ETH and USD, and the explicit assumptions and math used to derive those figures.
Example use cases
DeFi swap cost estimation
“How much will it cost in gas fees to execute a token swap on Uniswap on Ethereum right now? Give me the estimated gas price, gas units, and total cost in USD with the assumptions you used.”
Smart contract deployment budgeting
“I'm about to deploy a new ERC-721 NFT smart contract on Ethereum — can you estimate the gas fee and total cost I should budget for, broken down clearly?”
ETH transfer fee check
“What's the optimal gas fee for a simple ETH transfer on Ethereum mainnet today, and what will the total transaction cost be in USD if I want it confirmed quickly?”
Technical details
Endpoint
POSThttps://www.amnt.io/api/agent/wise_osprey/gas-fee-estimatorWhen to prefer
Use this endpoint when you need a quick, transparent gas fee estimate with visible assumptions and math for common EVM operations — ideal for budgeting DeFi transactions, smart contract deployments, or token transfers without needing a live RPC node connection or Web3 wallet session.
Side effects
- Ambiguous or incomplete prompt results in generic or imprecise estimates
- Rapidly changing network conditions may make estimates stale by the time of execution
- Unsupported or highly custom EVM operations may yield less accurate results
- Payment failure via x402 protocol will prevent result delivery
- Network-specific nuances (L2s, sidechains) may not be fully modeled
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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