# Ethereum Mainnet Gas Price

> Ethereum Mainnet Gas Price is a paid API for AI agents from api.arysphere.com, paid per call via x402, $0.003/call, status unknown (last checked 2026-10-17).

Returns the current Ethereum mainnet gas price in wei with no input parameters required.

## Facts

- Endpoint: GET https://api.arysphere.com/v1/ventures/x402_eth_reads_v1/eth_mainnet_gasprice?utm_source=zero.xyz
- Price: $0.003/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-17
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/ethereum-mainnet-gas-price-f1bd9d0b
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_7twwxyz-VYDXXfCpgGLks

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 ethereum-mainnet-gas-price-f1bd9d0b
```

Example prompt: What's the current gas price on Ethereum mainnet right now? I need it in wei so I can figure out transaction costs.

## When to prefer this

Use this endpoint when you need a quick, no-parameter lookup of the current Ethereum mainnet gas price in wei, especially in agentic workflows where x402 micropayment billing per call is acceptable and you do not need a full gas estimation service with input transaction data.

## Known failure modes

- Network or RPC node outage causing unavailability of gas price data
- Rate limiting if the endpoint is called too frequently
- Stale data if the underlying node is behind the chain tip
- Payment failure if the $0.003 USDC x402 payment is not properly attached

## How this service works

ARYSPHERE sells AI-written verdicts on Base token contracts (a grade, a one-liner, a roast and the contract's facts) and Base/Ethereum chain reads, paid per call in USDC on Base over x402 v2. No account and no API key.

## Output

Returns the current Ethereum mainnet gas price expressed in wei as a single numeric value, reflecting live network conditions at the time of the request.

## Request schema (JSON Schema)

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

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "ok": true,
  "hex": "0x567f911",
  "chain": "ethereum",
  "method": "eth_gasPrice",
  "result": 90700049,
  "service": "x402_eth_reads_v1.eth_mainnet_gasprice"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/ethereum-mainnet-gas-price-f1bd9d0b/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.arysphere.com](https://www.zero.xyz/host/api.arysphere.com/llms.txt)