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Gas Comparator – Base vs Ethereum Gas Price Oracle
x402
Gas Comparator – Base vs Ethereum Gas Price Oracle is a paid API for AI agents from lab.paidapis.net, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-15).
Fetches and compares current gas prices on Base and Ethereum mainnet, returning the ratio, delta in Gwei, and ETH/USD price at check time.
Price / call$0.01
Success—
StatusUnknown
How this service works
Cross-chain gas comparator: real, current gas price on Ethereum and Base side by side, with the delta and ratio between them, plus the estimated USD cost of a standard 21,000-gas transfer on each chain (using the live ETH/USD price). No advice or 'cheaper chain' verdict — just the numbers.
Output
A JSON object containing a Base gas data object, an Ethereum gas data object, the ratio of Base to Ethereum gas prices (number), the delta in Gwei (number), the current ETH/USD price (number), and the ISO timestamp of the data fetch.
Example use cases
Live gas fee arbitrage decision
“Before I submit this on-chain transaction, can you tell me how much cheaper gas is on Base compared to Ethereum right now, and what the price ratio looks like?”
DeFi bot routing check
“I need to know the current gas delta in Gwei between Base and Ethereum and today's ETH price so I can decide which network to route my swap through.”
Gas cost monitoring dashboard
“Fetch me the latest gas comparison between Base and Ethereum — I want the ratio, the Gwei difference, and the ETH/USD price, with the timestamp of the check.”
Technical details
Endpoint
GEThttps://lab.paidapis.net/api/gas-comparatorWhen to prefer
Use this endpoint when you need a quick, single-call comparison of live gas prices across Base and Ethereum mainnet, especially when you also need the ETH/USD spot price bundled in the same response. It is ideal for agents making routing decisions or surfacing fee information to users, and is cheaper than running your own RPC calls to two separate nodes.
Side effects
- Upstream RPC node unavailable — gas data cannot be fetched, returns error
- Stale data if block producer is slow — checkedAt timestamp may lag real time
- Network connectivity issues to Base or Ethereum nodes resulting in partial data
- Payment validation failure via x402 if USDC balance is insufficient
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| input | — | |
| output | — |
Tags
x402
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