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Base Mainnet Gas Price API
x402
Base Mainnet Gas Price API is a paid API for AI agents from x402-data-api.sigrunner.workers.dev, paid per call via x402, $0.001/call, status unknown (last checked 2026-09-14).
Returns current Base mainnet gas price in wei/gwei, EIP-1559 base fee and priority fee, and gas price in USD
Price / call$0.001
Success—
StatusUnknown
How this service works
Current Base mainnet gas price (wei/gwei), EIP-1559 base_fee_gwei/priority_fee_gwei, and gas_price_usd.
Output
Returns current Base mainnet gas price as wei and gwei values, plus EIP-1559 breakdown with base_fee_gwei and priority_fee_gwei, and the gas_price_usd conversion for cost estimation
Example use cases
Example prompt
“What are the current gas fees on Base mainnet right now — give me the base fee, priority fee in gwei, and what that works out to in USD?”
Technical details
Endpoint
GEThttps://x402-data-api.sigrunner.workers.dev/chain/gas-priceWhen to prefer
Use this endpoint when you need real-time Base mainnet gas prices with EIP-1559 breakdown (base fee + priority fee) and USD cost conversion in a single call, especially for transaction cost estimation or gas monitoring on the Base L2 network
Side effects
- Base RPC node unavailable — may return 5xx error
- Stale data if underlying node is syncing
- USDC payment not processed — returns 402 Payment Required
- Rate limit exceeded for the payment tier
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| properties | string |
Output
Schema · Response
{
"type": "json",
"example": {
"chain": "base",
"base_fee_gwei": 0.018,
"gas_price_usd": 3.93e-8,
"gas_price_wei": "21284349",
"gas_price_gwei": 0.021284349,
"priority_fee_gwei": 0.0032
}
}Tags
x402
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