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The Stall Gas Prices
x402
The Stall Gas Prices is a paid API for AI agents from the-stall.intuitek.ai, paid per call via x402, $0.005/call, status unknown (last checked 2026-09-15).
Returns current gas prices (network transaction fees) for blockchain or fuel networks, payable via USDC on Base mainnet with no API key required.
Price / call$0.005
Success—
StatusUnknown
How this service works
Current gas prices and EIP-1559 fee recommendations across 6 major EVM chains: Ethereum, Base, Arbitrum, Optimism, Polygon, BNB Chain. Returns base fee, priority fee percentiles (slow/standard/fast), and estimated ETH/MATIC/BNB cost for a standard 21k-gas transfer. All sourced from free public RPC endpoints — no API key needed. Use before sending on-chain transactions, estimating agent operating costs, or comparing chain fees for routing decisions.
Output
Returns current gas price data for a blockchain network, likely including fee tiers (slow/standard/fast or low/medium/high) expressed in gwei or similar units, enabling the caller to estimate transaction costs.
Example use cases
Example prompt
“What are the current gas prices on Ethereum — give me the low, medium, and high fee tiers so I can decide when to send my transaction?”
Technical details
Endpoint
GEThttps://the-stall.intuitek.ai/cap/gas-pricesWhen to prefer
Choose this endpoint when you need current gas price estimates for blockchain transactions without setting up an API key or account, and you can pay $0.005 USDC per call via x402 on Base mainnet. Ideal for AI agents that need real-time fee data for transaction planning in a permissionless, pay-per-use model.
Side effects
- Network not supported — returns error if requested chain is not available
- Payment failure — USDC payment on Base mainnet not processed, returns 402
- Stale data — gas prices may lag real-time conditions by a few seconds to minutes
- Malformed input — invalid property filter returns empty or error response
Input
{
"properties": "ethereum"
}Schema · Request body
| Field | Type | Description |
|---|---|---|
| properties | string |
Output
{
"ts": "2026-06-21T05:19:52.455Z",
"chains": [
{
"type": "EIP-1559",
"symbol": "ETH",
"network": "Ethereum",
"legacy_gwei": 0.122,
"priority_fee": {
"fast_gwei": 0.396,
"slow_gwei": 0,
"standard_gwei": 0.004
},
"base_fee_gwei": 0.112,
"estimated_transfer_cost": {
"note": "Cost = (base_fee + standard_priority) × 21000 gas",
"token": "ETH",
"gas_units": 21000,
"cost_in_token": 0.000002436,
"effective_gwei": 0.116
}
},
{
"type": "EIP-1559",
"symbol": "ETH",
"network": "Base",
"legacy_gwei": 0.006,
"priority_fee": {
"fast_gwei": 0.008,
"slow_gwei": 0,
"standard_gwei": 0.001
},
"base_fee_gwei": 0.005,
"estimated_transfer_cost": {
"note": "Cost = (base_fee + standard_priority) × 21000 gas",
"token": "ETH",
"gas_units": 21000,
"cost_in_token": 1.26e-7,
"effective_gwei": 0.006
}
},
{
"type": "EIP-1559",
"symbol": "ETH",
"network": "Arbitrum One",
"legacy_gwei": 0.02,
"priority_fee": {
"fast_gwei": 0,
"slow_gwei": 0,
"standard_gwei": 0
},
"base_fee_gwei": 0.02,
"estimated_transfer_cost": {
"note": "Cost = (base_fee + standard_priority) × 21000 gas",
"token": "ETH",
"gas_units": 21000,
"cost_in_token": 4.2e-7,
"effective_gwei": 0.02
}
},
{
"type": "EIP-1559",
"symbol": "ETH",
"network": "Optimism",
"legacy_gwei": 0.001,
"priority_fee": {
"fast_gwei": 0.002,
"slow_gwei": 0,
"standard_gwei": 0
},
"base_fee_gwei": 0,
"estimated_transfer_cost": {
"note": "Cost = (base_fee + standard_priority) × 21000 gas",
"token": "ETH",
"gas_units": 21000,
"cost_in_token": 0,
"effective_gwei": 0
}
},
{
"type": "legacy",
"symbol": "MATIC",
"network": "Polygon",
"legacy_gwei": null,
"priority_fee": {
"fast_gwei": null,
"slow_gwei": null,
"standard_gwei": null
},
"base_fee_gwei": null,
"estimated_transfer_cost": {
"note": "Cost = (base_fee + standard_priority) × 21000 gas",
"token": "MATIC",
"gas_units": 21000,
"cost_in_token": 0.000021,
"effective_gwei": 1
}
},
{
"type": "legacy",
"symbol": "BNB",
"network": "BNB Chain",
"legacy_gwei": null,
"priority_fee": {
"fast_gwei": null,
"slow_gwei": null,
"standard_gwei": null
},
"base_fee_gwei": null,
"estimated_transfer_cost": {
"note": "Cost = (base_fee + standard_priority) × 21000 gas",
"token": "BNB",
"gas_units": 21000,
"cost_in_token": 0.000021,
"effective_gwei": 1
}
}
]
}Tags
x402
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