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Multichain RPC Gas Price
x402
Multichain RPC Gas Price 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 2026-09-14).
Returns live EIP-1559 gas prices (base fee, low/medium/high priority tiers in gwei) and estimated simple transfer cost for a specified EVM chain.
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, current EIP-1559 base fee in gwei, blended gas price in gwei, and a simple_transfer_cost object with the gas units (21000), the estimated cost as a decimal string, and the native token symbol (e.g. ETH).
Example use cases
Pre-transaction gas cost check
“Before I send this transaction on Polygon, what's the current base fee and how much would a simple transfer cost in MATIC right now?”
Cross-chain gas comparison
“I'm deciding between sending on Arbitrum or Optimism — can you pull the current gas prices on both so I can see which is cheaper?”
Gas spike monitoring alert
“Check the current gas price on Ethereum mainnet and tell me whether the base fee is above 20 gwei — I want to know if it's spiking.”
Technical details
Endpoint
GEThttps://multichain-rpc.clankerceo.workers.dev/gas-priceWhen to prefer
Use this endpoint when an agent needs real-time EVM gas prices across Base, Polygon, Arbitrum, Optimism, or Ethereum mainnet, especially when estimating transaction costs before submission or monitoring for gas spikes. Prefer this over on-chain RPC calls when you need a cheap, metered, per-call priced lookup without managing your own RPC node credentials.
Side effects
- Unsupported or misspelled chain name returns an error or empty response
- Chain parameter omitted may default to a single chain or return an error
- RPC backend congestion may cause stale or delayed gas data
- Cloudflare Worker cold start may add latency on first call
- Rapid gas market movements mean data may be slightly outdated by the time the agent acts on it
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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