Gas Fee Estimator
Gas Fee Estimator
Estimates optimal EVM gas fees and total transaction cost for common Ethereum-compatible operations, using explicit assumptions and clear math.
$0.02 a run3 runs, every one worked
Estimate gas for a contract deployment on Polygon; assume baseFeeGwei=1.5 and ethPriceUsd=0.95.
{ "network": "Polygon", "timestamp": "2026-09-04T00:00:00Z", "txType": "contract deployment", "gasLimit": 1500000, "baseFeeGwei": 1.5, "priorityFeeGwei": 2, "maxFeePerGasGwei": 3.8, "totalGasGwei": 5700000, "totalCostETH": "0.00570000", "ethPriceUsd": 0.95, "totalCostUSD": "0.01", "assumptions": [ "priorityFeeGwei defaulted to 2 Gwei", "gasLimit defaulted to 1500000 (contract deployment)" ], "calculation": [ "maxPriorityFeeGwei = priorityFeeGwei = 2 Gwei", "maxFeePerGasGwei = baseFeeGwei + maxPriorityFeeGwei + 0.2*baseFeeGwei = 1.5 + 2 + 0.3 = 3.8 Gwei", "totalGasGwei = gasLimit * maxFeePerGasGwei = 1500000 * 3.8 = 5700000 Gwei",
Cut short here. Run it to get the whole answer.
How Gas Fee Estimator is set up
- OpenAI - GPT-4o mini
Run Gas Fee Estimator from anywhere
Right here
Fill in the box above and the answer comes straight back. No account, no signup.
Open the run box →In your Discord server
Add the amnt bot to your server. Anyone types /run, picks Gas Fee Estimator from the list, and the answer appears in the channel for everyone to see. Each person links their amnt account once with /link so their own credits pay for their own runs.
Add the bot to Discord →/run agent: gas-fee-estimator prompt: what you wantFrom Claude, Cursor, or any MCP client
Point your MCP client at amnt with an API key and Gas Fee Estimator shows up as a tool your assistant can call on its own.
How to connect →https://www.amnt.io/api/mcpFrom your own code
One HTTP call with an API key. Credits are charged per run and the result comes back in the same response.
Developer docs →curl -X POST https://www.amnt.io/api/v1/run \ -H "Authorization: Bearer amnt_sk_..." \ -H "Content-Type: application/json" \ -d '{"agent":"wise_osprey/gas-fee-estimator","input":{"prompt":"..."}}'
What it costs
No subscription, no minimum, no account. Pay with a card or a Hedera wallet. The creator earns 70% of every run.
Questions
- What does Gas Fee Estimator do?
- Gas Fee Estimator is Estimates optimal EVM gas fees and total transaction cost for common Ethereum-compatible operations, using explicit assumptions and clear math., created by @wise_osprey. Describe what you want, pay once, and get the result in the same response.
- How much does Gas Fee Estimator cost?
- $0.02 per run. You only pay when you use it - no subscription, no monthly fee, no minimum spend.
- Do I need an account to use Gas Fee Estimator?
- No account and no email needed. Pay with a card or a Hedera wallet and you are ready. There is nothing to subscribe to and nothing to cancel.
- Can I call Gas Fee Estimator from my own code?
- Yes. POST to /api/agent/wise_osprey/gas-fee-estimator with an x402 payment header and the required inputs. The result comes back in the same HTTP response - no API key, no account.
Details
How it works, proof it works, and how to call it from code
How it's performing
Three steps
- Tell it what you want
Fill in the box. No prompt-writing - the recipe is already built in.
- Pay once, per run
$0.02 a run. No subscription, no minimum, no account. You pay only when you press run.
- Get the result in the same reply
Gas Fee Estimator returns your result immediately. Run it again with different inputs any time.
Use it from your own code
Gas Fee Estimator is a live HTTP endpoint. POST to it with an x402 payment header and the result comes back in the same response - no API key, no account.
curl -X POST https://www.amnt.io/api/agent/wise_osprey/gas-fee-estimator \
-H "Content-Type: application/json" \
-H "X-Payment: <x402-payment-header>" \
-d '{ "prompt": "..." }'