# QuickBuild Base Network Gas Estimator

> QuickBuild Base Network Gas Estimator is a paid API for AI agents from quickbuild.quynguyenbac.workers.dev, paid per call via x402, $0.001/call, status unknown (last checked 2026-10-21).

Returns real-time gas prices, fee suggestions, ETH/USD rate, and estimated transaction costs for the Base (chain ID 8453) network

## Facts

- Endpoint: GET https://quickbuild.quynguyenbac.workers.dev/api/base/gas?utm_source=zero.xyz
- Price: $0.001/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-21
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/quickbuild-base-network-gas-estimator-afbe51eb
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_EIrqzCYvFu2tC4YSv8fsO

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability quickbuild-base-network-gas-estimator-afbe51eb
```

Example prompt: What are the current gas prices and estimated transaction costs on the Base network right now, including a suggested maxFeePerGas and the current ETH/USD price?

## When to prefer this

Use this endpoint when you specifically need gas data for the Base network (chain ID 8453) and want both fee suggestions and estimated USD costs for common transaction types in a single call. Prefer this over generic gas APIs when your workflow targets Base L2 and you need ERC-20 transfer cost estimates alongside ETH/USD pricing.

## Known failure modes

- Network unavailable: RPC node for Base may be temporarily unreachable, returning a 5xx error
- Stale data: block timestamp may lag if the underlying RPC is behind
- Rate limiting: exceeding call frequency may result in 429 errors
- Payment failure: missing or invalid x402 USDC payment header returns 402
- Invalid endpoint path: calling wrong route returns 404

## How this service works

Landing pages ($15), Google Sheets/Apps Script automation ($10), scrapers, scripts & Telegram bots (from $15), broken-link + sitemap audit reports ($10). See a working demo first, pay after.

## Output

A JSON object containing: current ETH/USD price, chain ID (8453), network name ('base'), suggested standard gas settings (maxFeePerGas and maxPriorityFeePerGas in Gwei), base fee in Gwei, current block number and timestamp, block utilization percentage, gas price in Gwei, and estimated costs (in ETH and USD) for both a standard ETH transfer (21,000 gas) and an ERC-20 token transfer (65,000 gas).

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "required": {
   "type": "string"
  },
  "properties": {
   "type": "string"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "ethUsd": 2433.71,
  "chainId": 8453,
  "network": "base",
  "suggested": {
   "standard": {
    "maxFeePerGasGwei": 0.011,
    "maxPriorityFeePerGasGwei": 0.001
   }
  },
  "baseFeeGwei": 0.005,
  "blockNumber": 52868139,
  "gasPriceGwei": 0.006,
  "estimatedCost": {
   "ethTransfer": {
    "eth": 1.27598e-7,
    "gas": 21000,
    "usd": 0.000311
   },
   "erc20Transfer": {
    "eth": 3.92303e-7,
    "gas": 65000,
    "usd": 0.000955
   }
  },
  "blockTimestamp": "2026-10-20T19:47:05.000Z",
  "blockUtilization": 0.0652,
  "maxPriorityFeeGwei": 0.001
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/quickbuild-base-network-gas-estimator-afbe51eb/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from quickbuild.quynguyenbac.workers.dev](https://www.zero.xyz/host/quickbuild.quynguyenbac.workers.dev/llms.txt)