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VerifyOracle Base Gas Price
x402
VerifyOracle Base Gas Price is a paid API for AI agents from verify-oracle.run402.com, paid per call via x402, $0.001/call, status unknown (last checked 2026-10-22).
Returns live EIP-1559 gas price data (base fee, priority fee, block number) from Base Mainnet (chainId 8453) via direct RPC.
Price / call$0.001
Success—
StatusUnknown
How this service works
Live Base Mainnet (chainId 8453) gas price, EIP-1559 base fee in gwei, and block number directly from Base Mainnet RPC.
Output
Returns a JSON object with: chain name, chainId (8453), network label ('base-mainnet'), timestamp, baseFeeGwei, priorityFeeGwei, baseFeePerGasWei, baseFeePerGasGwei, blockNumber, blockTimestamp, price/value (cost of the API call in USDC), and source identifier ('base-mainnet-rpc').
Example use cases
Transaction cost estimation before sending
“Before I submit this transaction on Base, can you check the current base fee and priority fee in gwei so I can estimate how much it'll cost?”
Monitor Base gas for optimal timing
“Is Base gas cheap right now? Give me the live EIP-1559 base fee in gwei so I can decide whether to wait before sending my transaction.”
On-chain block height verification
“What's the latest block number on Base Mainnet and what's the current base fee — I need to confirm the chain is live and synced.”
Technical details
Endpoint
GEThttps://verify-oracle.run402.com/api/base-gas?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need live, real-time EIP-1559 gas data directly from Base Mainnet RPC — specifically base fee, priority fee, and current block number. Prefer this over generic gas APIs when you need Base-specific data (chainId 8453) rather than Ethereum mainnet, and when you need both gwei and wei representations in a single call.
Side effects
- RPC node unavailability may cause 503 or delayed response
- Invalid chain query parameter returns error or defaults to base
- Stale data if RPC node is behind the chain tip
- Payment failure (x402) if USDC balance is insufficient
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"chain": "base",
"price": 0.0012,
"value": 0.0012,
"source": "base-mainnet-rpc",
"chainId": 8453,
"network": "base-mainnet",
"timestamp": "2026-10-21T18:00:00.000Z",
"baseFeeGwei": 0.0012,
"blockNumber": 52908000,
"blockTimestamp": 1761069000,
"priorityFeeGwei": 0.0003,
"baseFeePerGasWei": "1200000",
"baseFeePerGasGwei": 0.0012
}
}Tags
x402
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