Proxy Gas Price

Last 30 days

Uptime

100%

Response time

33 ms typical, 33 ms slowest 5%

Last check

3 h ago

Next check

any minute now

How to call it

# See the payment challenge (nothing is charged)
curl -i -X POST "https://agentsvc.io/api/v1/proxy/gas-price" \
  -H "content-type: application/json" \
  -d '{"chains":["base","ethereum","arbitrum"]}'

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%2Fagentsvc.io%2Fapi%2Fv1%2Fproxy%2Fgas-price
const res = await pay("https://agentsvc.io/api/v1/proxy/gas-price", {
  method: "POST",
  headers: { "content-type": "application/json" },
  body: JSON.stringify({"chains":["base","ethereum","arbitrum"]}),
});
console.log(await res.json());

Example input

{
  "chains": [
    "base",
    "ethereum",
    "arbitrum"
  ]
}

Example output

{
  "data": {
    "chains": [
      {
        "base_fee_gwei": 0.005,
        "chain": "base",
        "chain_id": 8453,
        "est_cost_usd": {
          "erc20_transfer": 0.001057,
          "eth_transfer": 0.000342,
          "swap": 0.002927
        },
        "gas_price_gwei": 0.006,
        "native_token": "ETH",
        "native_usd": 2710.355,
        "priority_fee_gwei": {
          "high": 0.007469,
          "low": 0.00004,
          "medium": 0.001059
        }
      },
      {
        "base_fee_gwei": 0.854496,
        "chain": "ethereum",
        "chain_id": 1,
        "est_cost_usd": {
          "erc20_transfer": 0.155051,
          "eth_transfer": 0.050093,
          "swap": 0.429372
        },
        "gas_price_gwei": 0.880105,
        "native_token": "ETH",
        "native_usd": 2710.355,
        "priority_fee_gwei": {
          "high": 12.90606,
          "low": 0.2387,
          "medium": 1.694767
        }
      }
    ],
    "checked_at": "2026-10-06T14:17:44.635Z",
    "note": "L2 costs exclude the L1 data fee, which can dominate on rollups."
  },
  "success": true
}

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