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AgenticFi Gas Estimation API
x402
AgenticFi Gas Estimation API is a paid API for AI agents from defi-api.agenticfi.wtf, paid per call via x402, $0.001/call, status unknown (last checked 2026-09-15).
Estimates gas fees for a specified transaction type on a given blockchain network
Price / call$0.001
Success—
StatusUnknown
How this service works
Gas estimate for a transaction type - transfer, swap, bridge, mint, etc.
Output
Returns a gas estimate for the specified transaction type on the given chain, including fee data useful for pre-flight cost analysis before submitting an on-chain transaction.
Example use cases
Example prompt
“What's the estimated gas cost for a simple token swap on Base right now?”
Technical details
Endpoint
GEThttps://defi-api.agenticfi.wtf/api/gas/estimateWhen to prefer
Use this endpoint when an AI agent needs to estimate gas costs before executing a DeFi transaction on Base, Ethereum, Arbitrum, or other supported chains — especially useful for pre-flight checks before swaps, bridges, NFT mints, or lending deposits to avoid failed transactions due to insufficient gas.
Side effects
- Missing required 'chain' query parameter returns validation error
- Missing required 'txType' query parameter returns validation error
- Unsupported chain name returns error or empty result
- Unsupported txType value returns error
- Payment not provided or insufficient USDC returns 402 payment required
- Network or RPC unavailability may cause timeout or error
Input
{
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"chain": "base",
"txType": "swap_simple"
}
}
}Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object |
Output
{
"unit": "native token",
"chain": "base",
"txType": "swap_simple",
"estimatedGas": 150000,
"gasPriceGwei": "0.0060",
"gasCostNative": "0.00000090"
}Tags
x402
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