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Ethereum Mainnet Gas Price & Base Fee
x402
Ethereum Mainnet Gas Price & Base Fee is a paid API for AI agents from api.x402node.dev, paid per call via x402, $0.005/call, status unknown (last checked 2026-09-14).
Returns current Ethereum mainnet gas price in gwei and the latest block base fee via LlamaRPC eth_gasPrice
Price / call$0.005
Success—
StatusUnknown
How this service works
Ethereum mainnet current gas price (gwei) via LlamaRPC eth_gasPrice plus latest block base fee. Use no params. Built for AI agents timing on-chain ops, contract deployment cost estimation, ethereum gas fee estimate Accepts payment on Base or Solana — either network works.
Output
Returns the current Ethereum mainnet gas price in gwei (from eth_gasPrice) and the latest block's base fee, enabling cost estimation for transactions and contract deployments on Ethereum mainnet.
Example use cases
Example prompt
“What's the current Ethereum mainnet gas price in gwei right now, including the latest block base fee? I want to decide whether to deploy my smart contract now or wait for cheaper gas.”
Technical details
Endpoint
GEThttps://api.x402node.dev/chain/eth-gasWhen to prefer
Use this endpoint when an AI agent needs real-time Ethereum mainnet gas price data to time on-chain operations, estimate transaction or contract deployment costs, or decide whether current gas conditions are favorable. Prefer over Ethereum-specific alternatives when no API key is available and a simple gwei + base fee response is sufficient. For Base L2 gas pricing, use the sibling Base gas endpoint instead.
Side effects
- LlamaRPC upstream unavailable — service returns error or stale data
- Network congestion causing delayed response
- Payment of $0.005 USDC not fulfilled — 402 payment required error
- Returned base fee may be slightly stale if latest block not yet propagated
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| properties | string |
Tags
x402
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