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Base Gas Price Oracle
x402
Base Gas Price Oracle is a paid API for AI agents from lin-desk-x402.lindesk.workers.dev, paid per call via x402, $0.002/call, status unknown (last checked 2026-10-11).
Returns current Base (L2) network gas price estimates including low/medium/high fee tiers, ETH/USD price, and USDC transfer cost estimates
Price / call$0.002
Success—
StatusUnknown
How this service works
Pay-per-call API for AI agents: turn any public web page or PDF into clean, LLM-ready Markdown. $0.002 per call in USDC on Base via x402. No API key, no signup.
Output
Returns a JSON object with current Base network gas data including: timestamp, chain ID, low/medium/high fee tiers (max_fee_gwei and max_priority_fee_gwei), current base_fee_gwei, next expected base_fee_gwei, base fee trend (flat/rising/falling), ETH/USD price sourced from Chainlink, estimated gas units and total USD cost for a USDC transfer, average gas used ratio, current block number, and whether the result was cached.
Example use cases
Pre-transaction cost check
“I'm about to send some USDC on Base — can you check current gas prices and tell me if it's a cheap time to transact and what I can expect to pay in fees?”
DeFi bot fee optimization
“My agent needs to decide which fee tier to use before submitting a swap on Base — grab the current low, medium, and high gas estimates so we can pick the cheapest option that'll still confirm quickly.”
Gas price monitoring dashboard
“What's the current base fee trend on Base right now — is it rising, falling, or flat — and what block are we on? Also give me the ETH/USD price from Chainlink.”
Technical details
Endpoint
GEThttps://lin-desk-x402.lindesk.workers.dev/v1/base/gas?utm_source=zero.xyzWhen to prefer
Use this endpoint when an agent needs real-time Base L2 gas fee data before executing a transaction, estimating USDC transfer costs, or deciding when to submit a transaction based on network congestion. Prefer this over generic Ethereum gas APIs when operating specifically on Base (chain ID 8453). The Chainlink-sourced ETH/USD price makes it reliable for cost estimation in USD terms.
Side effects
- Network unavailability of Base RPC may return stale or error data
- Chainlink oracle may have delayed ETH/USD price during low-activity periods
- Cached results (cached: true) may not reflect the very latest block
- No input validation errors expected as this is a parameter-free GET endpoint
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| required | string | |
| properties | string |
Output
Schema · Response
{
"type": "json",
"example": {
"as_of": 1791020277,
"chain": "base",
"tiers": {
"low": {
"max_fee_gwei": 0.010001,
"max_priority_fee_gwei": 0.000001
},
"high": {
"max_fee_gwei": 0.014,
"max_priority_fee_gwei": 0.004
},
"medium": {
"max_fee_gwei": 0.011005,
"max_priority_fee_gwei": 0.001005
}
},
"cached": false,
"eth_usd": 2684.15,
"chain_id": 8453,
"estimates": {
"usdc_transfer": {
"gas_units": 65000,
"total_eth": "0.000000391412",
"total_usd": 0.001051,
"total_wei": "391411534872"
}
},
"elapsed_ms": 52,
"block_number": 52115465,
"base_fee_gwei": 0.005,
"base_fee_trend": "flat",
"eth_usd_source": "Chainlink ETH/USD (Base)",
"avg_gas_used_ratio": 0.08,
"next_base_fee_gwei": 0.005
}
}Tags
x402
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