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UnlockBot Gas Fee Oracle
x402
UnlockBot Gas Fee Oracle is a paid API for AI agents from 8prtkj444ihx.hostc.app, paid per call via x402, $0.001/call, status unknown (last checked 2026-10-30).
Returns current and forecasted gas prices (base fee, transfer costs, block utilization) for Ethereum, Base, or Arbitrum chains
Price / call$0.001
Success—
StatusUnknown
How this service works
Pay-per-call crypto risk data for AI agents over x402: pre-trade checks, token safety / honeypot screening, whale exchange flows, token unlock risk, wallet profiles. No API key, no signup: pay a few cents of USDC per call. Payment: x402 v2 exact scheme, USDC on Base mainnet (eip155:8453) to 0x21e4F3c6EcDb0F0CADC59511BF675B9BcBbeD304. Charged only on HTTP 200.
Output
Returns a JSON object with the current base fee average (gwei), forecasted next base fee, gas trend (stable/rising/falling), block utilization percentage, estimated ETH costs for common operation types (21k ETH transfer, 65k ERC20 transfer, 180k swap), a human-readable forecast for upcoming blocks, and the chain queried.
Example use cases
Pre-trade gas cost check
“Before I submit this token swap on Ethereum, what's the current base fee and how much should I expect to pay in gas for a swap transaction?”
Monitor Base network congestion
“Check the current block utilization and gas fees on Base — is the network congested or is it a good time to send a transaction cheaply?”
Arbitrum gas forecast for automation
“I'm about to run a batch of on-chain actions on Arbitrum — what's the current base fee and is gas expected to rise or stay stable over the next few blocks?”
Technical details
Endpoint
GEThttps://8prtkj444ihx.hostc.app/gas?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need real-time gas fee data for EVM chains (Ethereum, Base, Arbitrum) without signing up for an API key — ideal for AI agents doing pre-trade checks, cost estimation, or gas monitoring in a pay-per-call model. Prefer this over free public RPC calls when you need structured, pre-computed cost estimates (swap, ERC20 transfer, ETH transfer) and a trend/forecast rather than raw gas values.
Side effects
- Invalid chain parameter returns an error — only 'ethereum', 'base', or 'arbitrum' are supported
- Payment failure (non-200 response) means no charge is incurred but no data is returned
- Network-level data may be slightly delayed if the underlying RPC node is lagging
- Partial data flag ('partial: true') may appear if some block data was unavailable
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"ok": true,
"data": {
"note": null,
"unit": "gwei",
"chain": "ethereum",
"trend": "stable",
"partial": false,
"suggested": {},
"next_base_fee": 0.0661,
"transfer_cost_eth": {
"swap_180k": 0.0000121,
"eth_transfer_21k": 0.00000141,
"erc20_transfer_65k": 0.00000436
},
"forecast_next_blocks": "base fee likely to increase (blocks >50% full)",
"block_utilization_pct": 50.3,
"base_fee_avg_20_blocks": 0.0668
},
"endpoint": "/gas"
}
}Tags
x402
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