ToolVet
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Gas

by Onchain Query API in Onchain & crypto

x402 APIPassing, checked 4 h ago

Live gas market on any major EVM chain: current gas price, base fee and priority-fee percentiles (p25/p50/p75) in gwei, plus the estimated cost in native token and USD for a plain transfer (21k gas) and a typical DEX swap (200k gas). Lets an agent decide whether a transaction is worth sending right now or should wait for cheaper gas, and budget the fee before signing.

GET https://chain.cyberwarex.com/gas

Last 30 days

All checks passedSome failedAll failedNot checked
Uptime
100%
Response time
173 ms typical, 173 ms slowest 5%
Last check
4 h ago
Next check
any minute now

How to call it

# See the payment challenge (nothing is charged)
curl -i -X GET "https://chain.cyberwarex.com/gas?chain=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 $0.03:
// GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Fchain.cyberwarex.com%2Fgas
const res = await pay("https://chain.cyberwarex.com/gas?chain=base");
console.log(await res.json());

Example input

{
  "chain": "base"
}

Example output

{
  "base_fee_gwei": 0.004119,
  "chain": "base",
  "est_cost": {
    "swap_200k": {
      "native": 0.000001127,
      "usd": 0.003599
    },
    "transfer_21k": {
      "native": 1.18e-7,
      "usd": 0.000377
    }
  },
  "gas_price_gwei": 0.008312,
  "native": "ETH",
  "native_usd": 3194.51,
  "priority_fee_gwei": {
    "p25": 0.001,
    "p50": 0.0015,
    "p75": 0.0031
  }
}

Security scan

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

Recent checks

WhenResultHTTPTimePrice
4 h agoPassed402173 ms$0.002