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EVM Chain Gas Price Check
x402
EVM Chain Gas Price Check is a paid API for AI agents from api.strale.io, paid per call via x402, $0.0216/call, status unknown (last checked 2026-09-13).
Returns current safe, proposed, and fast gas prices in Gwei plus the base fee for a specified EVM blockchain.
Price / call$0.0216
Success—
StatusUnknown
How this service works
Get current gas prices for an EVM chain. Returns safe, proposed, and fast gas prices in Gwei plus the base fee. Useful for agents deciding whether to execute a transaction now or wait.
Output
Returns safe, proposed, and fast gas price tiers in Gwei, plus the current base fee, for the specified EVM chain (defaults to Ethereum mainnet if no chain_id provided).
Example use cases
Optimize transaction timing across chains
“Check the gas prices on both Ethereum and Base right now. Which chain has cheaper fees for my token swap, and should I wait for prices to drop before executing?”
Monitor network congestion for batch payments
“Give me the current base fee and fast gas price on Ethereum mainnet. I need to know if it's a good time to send out these batch payments or if I should queue them until congestion drops.”
Real-time cost estimation before execution
“What's the proposed gas price in Gwei on Ethereum right now? I want to estimate whether my smart contract interaction will cost more than my budget allows before I actually submit it.”
Technical details
Endpoint
GEThttps://api.strale.io/x402/gas-price-checkWhen to prefer
Use this endpoint when an AI agent needs to make real-time decisions about whether to submit an on-chain transaction, optimize gas costs, or monitor network congestion on Ethereum (chain_id=1) or Base (chain_id=8453) before executing a payment or smart contract interaction.
Side effects
- Invalid or unsupported chain_id returns an error
- Network timeout if the target chain RPC is unreachable
- Payment failure if USDC balance is insufficient for the $0.0216 per-call fee
- Missing required 'input' wrapper in request body causes schema validation error
Input
{
"chain_id": "1"
}Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object |
Output
{
"_meta": {
"payment": {
"method": "x402",
"price_usd": 0.0216,
"settlement_id": "0xf085569212c5e603e8b0fa18e27cebb977a8662353f740b4f2a804ad0505f68d"
},
"capability": "gas-price-check",
"latency_ms": 148,
"provenance": {
"source": "etherscan.io",
"fetched_at": "2026-06-13T04:24:06.429Z"
}
},
"chain_id": "1",
"base_fee_gwei": 0.105873972,
"fast_gas_gwei": 0.106873972,
"safe_gas_gwei": 0.105873972,
"gas_used_ratio": "0.544979416666667,0.483140916666667,0.46501,0.682956266666667,0.33960595",
"proposed_gas_gwei": 0.106089082
}Tags
x402
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