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Gas Estimate

by Gas price in Onchain & crypto

x402 APIPassing, checked 54 min ago

Current gas price on Base, Polygon, Arbitrum, Optimism, Ethereum, Monad, Celo, Avalanche, Sei, or Robinhood Chain - for an agent budgeting a transaction: returns network, gasPriceGwei and gasPriceWei (decimal strings) from the chain's own eth_gasPrice, the node's suggested all-in price per gas unit. Multiply by the gas a transaction uses (21000 for a plain transfer) for its fee. Read-only.

GET https://agent402.tools/api/gas-estimate

Last 30 days

All checks passedSome failedAll failedNot checked
Uptime
100%
Response time
188 ms typical, 188 ms slowest 5%
Last check
54 min ago
Next check
any minute now

How to call it

# See the payment challenge (nothing is charged)
curl -i -X GET "https://agent402.tools/api/gas-estimate?network=base"
import { wrapFetchWithPayment } from "@x402/fetch";
import { x402Client } from "@x402/core/client";
import { ExactEvmScheme } from "@x402/evm/exact/client";
import { privateKeyToAccount } from "viem/accounts";

const client = new x402Client().register(
  "eip155:8453",
  new ExactEvmScheme(privateKeyToAccount(process.env.AGENT_KEY)),
);
const pay = wrapFetchWithPayment(fetch, client);

// Not sure it's safe to pay? Preflight it first for $0.005:
// GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Fagent402.tools%2Fapi%2Fgas-estimate
const res = await pay("https://agent402.tools/api/gas-estimate?network=base");
console.log(await res.json());

Example input

{
  "network": "base"
}

Example output

{
  "gasPriceGwei": "0.0051",
  "gasPriceWei": "5100000",
  "network": "base"
}

Security scan

  • No findings. We scan names, descriptions and tool definitions for hidden instructions and other prompt-injection patterns.

Recent checks

WhenResultHTTPTimePrice
54 min agoPassed402188 ms$0.001
6 h agoPassed402202 ms$0.001