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Tarnak x402 Toolkit — Base Gas Price API
x402
Tarnak x402 Toolkit — Base Gas Price API is a paid API for AI agents from api.capousd-student-tools.me, paid per call via x402, $0.002/call, status unknown (last checked 2026-10-31).
Returns current Base network gas estimates including base fee, gas price, priority fee, and suggested max fee in Gwei
Price / call$0.002
Success—
StatusUnknown
How this service works
Keyless pay-per-call APIs for AI agents on Base: token risk verdict, rug/honeypot report, gas estimate, URL-to-markdown and more. x402 v2, USDC, no API key or signup. 10 free verdicts per IP per day.
Output
A JSON object containing the current block number, timestamp, chain identifier (base / eip155:8453), base fee in Gwei, gas price in Gwei, priority fee in Gwei, and suggested max fee in Gwei — all sourced from the latest Base block.
Example use cases
Pre-transaction gas check for DeFi swap
“Before I submit this swap on Base, what's the current gas price and suggested max fee so I don't overpay or get stuck?”
Real-time gas monitoring for agent wallet
“Check the current base fee and priority fee on Base mainnet and let me know if it's cheap enough to send my transaction right now.”
Gas cost estimation for smart contract deployment
“I'm about to deploy a contract on Base — what are the current gas prices including the base fee and max fee in Gwei?”
Technical details
Endpoint
GEThttps://api.capousd-student-tools.me/v1/gas?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need real-time Base network gas estimates without API key registration, especially for autonomous AI agents that need to pay per call via x402/USDC micropayments. Prefer this over manual RPC calls when you want a clean JSON gas summary without raw RPC boilerplate, and when operating on the Base (eip155:8453) chain specifically.
Side effects
- Network or RPC node unavailable — may return 5xx error
- Rate limit exceeded beyond 10 free calls per IP per day without payment — returns 402 Payment Required
- Payment failure via x402 protocol — call is not executed
- Stale data if the underlying Base RPC node lags behind the chain tip
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| properties | string |
Output
Schema · Response
{
"type": "json",
"example": {
"ts": "2026-10-27T00:00:00Z",
"block": 53184656,
"chain": "base",
"network": "eip155:8453",
"base_fee_gwei": 0.0012,
"gas_price_gwei": 0.002,
"priority_fee_gwei": 0.0008,
"suggested_max_fee_gwei": 0.002
}
}Tags
x402
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