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AiToollab Cross-Chain Bridge Estimator
x402
AiToollab Cross-Chain Bridge Estimator is a paid API for AI agents from api.aitoollab.top, paid per call via x402, $0.05/call, status unknown (last checked 2026-10-12).
Estimates fees and transit time for bridging tokens across blockchain networks, recommending the best bridge and listing alternatives
Price / call$0.05
Success—
StatusUnknown
How this service works
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Output
Returns the recommended bridge name, estimated fee in USD, estimated transfer time in minutes, source and destination chain names, and a list of alternative bridges each with their fee and time estimates.
Example use cases
Example prompt
“What's the cheapest and fastest way to bridge $1000 from Ethereum to Arbitrum — compare Across, Stargate, and any other options and tell me the estimated fees and transfer times.”
Technical details
Endpoint
GEThttps://api.aitoollab.top/api/bridge/estimate?utm_source=zero.xyzWhen to prefer
Use this endpoint when an agent needs to evaluate cross-chain token transfer options before executing a bridge transaction, especially when cost or speed optimization across multiple bridge protocols (e.g. Across, Stargate) is required for ETH-compatible chains.
Side effects
- Unsupported chain pair returns no results or error
- Invalid amount or missing required input fields returns 400-level error
- Bridge provider data unavailable returns stale or empty alternatives list
- Network timeout causes delayed or failed response
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"to_chain": "Arbitrum",
"amount_usd": 1000,
"from_chain": "Ethereum",
"best_bridge": "Across",
"alternatives": [
{
"bridge": "Stargate",
"fee_usd": 2,
"time_min": 15
}
],
"estimated_fee_usd": 1.5,
"estimated_time_min": 10
}
}Tags
x402
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