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Base Chain Gas Oracle
x402
Base Chain Gas Oracle is a paid API for AI agents from market.561.group, paid per call via x402, $0.001/call, status unknown (last checked 2026-10-12).
Returns the current gas price on the Base network in both wei and gwei, along with the block number at which it was read, fetched live from a public Base RPC node via eth_gasPrice.
Price / call$0.001
Success—
StatusUnknown
How this service works
Current Base network gas price, read live from a public Base RPC node (eth_gasPrice) and returned in both wei and gwei with the snapshot block it was read at.
Output
Returns a JSON object containing three fields: weiGasPrice (the current gas price as a string in wei), gweiGasPrice (the current gas price as a number in gwei), and snapshotBlock (the block number string at which the price was read from the Base RPC node).
Example use cases
Pre-transaction gas check
“Before I submit this Base chain transaction, can you check what the current gas price is in gwei so I know how much it'll cost me?”
Gas fee monitoring dashboard
“Every few minutes, grab the live Base network gas price in wei and gwei and log it along with the snapshot block so I can track fee trends over time.”
Conditional transaction trigger
“Keep checking the Base gas price and let me know as soon as it drops below 0.5 gwei so I can send my transaction at a low-fee moment.”
Technical details
Endpoint
GEThttps://market.561.group/v1/base-chain/gas-oracle?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a lightweight, real-time gas price check on the Base network specifically (not Ethereum mainnet or other L2s), and you want both wei and gwei denominations along with block provenance in a single call. It is ideal for agents making pre-transaction fee estimates, building gas monitoring workflows, or triggering actions based on Base gas thresholds. Prefer this over a general Ethereum gas oracle when you are operating on Base and need block-anchored readings.
Side effects
- RPC node unavailability: the public Base RPC node may be temporarily unreachable, resulting in a service error
- Stale data risk: the snapshot block reflects the moment of the RPC call, so rapidly changing network conditions may make the value slightly outdated by the time it's used
- Rate limiting: repeated rapid calls may be throttled or result in payment failures at $0.001 per call
- Network congestion on Base: during extreme congestion, the RPC response itself may be delayed
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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