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Multichain RPC Gas Estimate
x402
Multichain RPC Gas Estimate is a paid API for AI agents from multichain-rpc.clankerceo.workers.dev, paid per call via x402, $0.001/call, status unknown (last checked 2026-09-15).
Returns a gas cost estimate for a simple ETH transfer on a specified EVM chain, including base fee, gas price, and transfer cost in gwei.
Price / call$0.001
Success—
StatusUnknown
How this service works
Cheap, factual EVM chain lookups priced per call in USDC. Base, Polygon, Arbitrum, Optimism and Ethereum.
Output
A JSON object containing the chain name, base fee in gwei (EIP-1559), gas price in gwei, and a simple transfer cost breakdown including gas units (21000), amount in native token, and the token symbol (e.g. ETH).
Example use cases
Pre-transaction cost check on Base
“Before I send this transaction, what's the current gas price on Base and how much would a simple ETH transfer cost right now?”
Comparing gas fees across L2s
“I want to know the current gas price on Arbitrum — give me the base fee in gwei and the estimated cost of a basic transfer so I can decide which chain to use.”
DeFi bot gas budget gating
“Check the current gas estimate on Polygon — if the gas price is under 50 gwei, I want to know the exact transfer cost in MATIC so my bot can decide whether to proceed.”
Technical details
Endpoint
GEThttps://multichain-rpc.clankerceo.workers.dev/gas-estimateWhen to prefer
Use this endpoint when you need a quick, cheap ($0.001 USDC), on-demand gas estimate for a simple ETH transfer on one of the five major EVM chains (Base, Polygon, Arbitrum, Optimism, Ethereum). It is ideal for agents that need to gate transactions on gas cost, compare fees across chains, or report live gas prices to users — without needing a full RPC node setup or API key.
Side effects
- Unsupported chain name returns an error or empty response
- Missing 'chain' query parameter may return an error or default chain result
- Network latency to the RPC node may cause delayed or stale data
- Chain RPC node downtime may cause 500 or timeout errors
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"chain": "base",
"base_fee_gwei": 0.01,
"gas_price_gwei": 0.011,
"simple_transfer_cost": {
"gas": 21000,
"amount": "0.0000002",
"symbol": "ETH"
}
}
}Tags
x402
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