ApiToll Base Gas Oracle · Base GAS

import { wrapFetchWithPayment } from "@x402/fetch";
import { privateKeyToAccount } from "viem/accounts";

const account = privateKeyToAccount(process.env.PRIVATE_KEY);
const fetchWithPay = wrapFetchWithPayment(fetch, account);

const res = await fetchWithPay("https://gas.apitoll.cloud/v1/base/gas", {
  method: "GET",
});
const data = await res.json();

curl -X GET \
  "https://gas.apitoll.cloud/v1/base/gas?blocks=20" \
  -H "X-PAYMENT: <signed x402 payment>"

{
  "base_fee_gwei": 0.0042,
  "base_fee_wei": "4200000",
  "block_number": 16842103,
  "network": "base-mainnet",
  "stats": {
    "blocks_sampled": 20,
    "median_fullness_pct": 31.5,
    "ts": "2026-05-28T15:42:30.000Z"
  },
  "tiers": {
    "fast": {
      "maxFeePerGas": "16300000",
      "maxPriorityFeePerGas": "10000000",
      "max_fee_gwei": 0.0163,
      "max_priority_gwei": 0.01
    },
    "slow": {
      "maxFeePerGas": "8300000",
      "maxPriorityFeePerGas": "2000000",
      "max_fee_gwei": 0.0083,
      "max_priority_gwei": 0.002
    },
    "standard": {
      "maxFeePerGas": "10300000",
      "maxPriorityFeePerGas": "4000000",
      "max_fee_gwei": 0.0103,
      "max_priority_gwei": 0.004
    }
  }
}