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Base Mainnet Gas Price Oracle
x402
Base Mainnet Gas Price Oracle is a paid API for AI agents from minty-sprout.onrender.com, paid per call via x402, $0.001/call, status unknown (last checked 2026-11-01).
Returns current Base mainnet gas metrics: latest block, base fee, priority fee, suggested max fee in gwei, and the ETH cost of a typical USDC transfer.
Price / call$0.001
Success—
StatusUnknown
How this service works
Current Base mainnet gas: latest block, base fee and priority fee in gwei, a suggested max fee, and the ETH cost of a typical USDC transfer. Input: any text, e.g. 'base'. Deterministic, no LLM.
Output
A JSON object containing: the latest block number, network identifier (eip155:8453), Unix timestamp, base fee in gwei, priority fee in gwei, suggested max fee in gwei, and the ETH cost of a typical USDC transfer on Base mainnet.
Example use cases
Pre-transaction gas check for DeFi bot
“Before I submit this swap on Base, can you check the current gas fees — specifically the suggested max fee in gwei and the ETH cost of a USDC transfer so I can decide if it's worth it right now?”
Gas cost monitoring for wallet dashboard
“Fetch the latest Base mainnet gas stats for me — I want the base fee, priority fee, and suggested max fee in gwei so I can display them live on my dashboard.”
Estimating transaction costs for a user
“A user wants to know how much ETH they'll spend on gas sending USDC on Base right now — can you get the current block's base fee and the estimated ETH cost of a USDC transfer?”
Technical details
Endpoint
POSThttps://minty-sprout.onrender.com/v1/base-gas?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a fast, deterministic, no-LLM lookup of current Base mainnet gas conditions, especially the EIP-1559 base fee, priority fee, suggested max fee, and the concrete ETH cost of a USDC transfer. It is simpler and cheaper than calling an RPC node directly and requires no Web3 credentials.
Side effects
- Upstream RPC node unavailable — returns a 5xx error
- Stale data if the render instance is cold-starting (possible latency spike)
- No meaningful input validation failure since the input field is ignored
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| input | string | Any text, e.g. "base" (the call takes no real input) |
Output
Schema · Response
{
"type": "json",
"example": {
"block": 53341001,
"network": "eip155:8453",
"timestamp": 1793471349,
"base_fee_gwei": 0.005,
"priority_fee_gwei": 0.001,
"suggested_max_fee_gwei": 0.011,
"usdc_transfer_cost_eth": 3.9e-7
}
}Tags
x402
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