ToolVet
85trust / 100

Base Gas

by ApiToll Base Gas Oracle in Onchain & crypto

x402 APIPassing, checked 3 h ago

Base gas oracle / gas price API for AI agents and bots — get the gas price for a transaction on Base in one x402 call. Real-time slow/standard/fast EIP-1559 fee tiers from a live eth_feeHistory call, returned as DROP-IN maxFeePerGas + maxPriorityFeePerGas in wei — plug straight into a viem/ethers transaction, no gwei conversion. Plus base fee, head block, and network fullness. Call it before every Base tx to set a fair fee or wait out congestion.

GET https://gas.apitoll.cloud/v1/base/gas

Last 30 days

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Uptime
100%
Response time
194 ms typical, 194 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 GET "https://gas.apitoll.cloud/v1/base/gas?blocks=20"
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%2Fgas.apitoll.cloud%2Fv1%2Fbase%2Fgas
const res = await pay("https://gas.apitoll.cloud/v1/base/gas?blocks=20");
console.log(await res.json());

Example input

{
  "blocks": 20
}

Example output

{
  "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
    }
  }
}

Security scan

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

Recent checks

WhenResultHTTPTimePrice
3 h agoPassed402194 ms$0.001
8 h agoPassed402203 ms$0.001