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HTTPay Bridge Intel — Cross-Chain Bridge Route Comparator
x402
HTTPay Bridge Intel — Cross-Chain Bridge Route Comparator is a paid API for AI agents from httpay.xyz, paid per call via x402, $0.02/call, status unknown (last checked 2026-09-13).
Compares bridge routes and costs across Across, Stargate, and the official Base Bridge for moving tokens from Ethereum to Base, returning routes sorted by cost.
Price / call$0.02
Success—
StatusUnknown
How this service works
Compare bridge routes & costs for Base: Across, Stargate, official Base Bridge. Returns routes sorted by cost. Params: ?from=ethereum&to=base&token=USDC&amount=1000
Output
A list of available bridge routes (Across, Stargate, official Base Bridge) sorted by cost, including estimated fees and route details for moving the specified token and amount from the source chain to Base.
Example use cases
Example prompt
“Compare bridge routes for moving 1000 USDC from Ethereum to Base — show me Across, Stargate, and the official Base Bridge sorted by cost so I can pick the cheapest option.”
Technical details
Endpoint
POSThttps://httpay.xyz/api/bridge-intelWhen to prefer
Use this endpoint when an agent needs to help a user find the cheapest or most efficient bridge route from Ethereum to Base before executing a transfer. Ideal for DeFi agents that want to optimize bridging costs by comparing Across, Stargate, and the official Base Bridge in a single call rather than querying each provider separately.
Side effects
- Unsupported token or chain pair returns empty route list or error
- Invalid amount parameter causes validation error
- One or more bridge providers temporarily unavailable, partial results returned
- Network timeout if bridge provider APIs are slow
- Missing required parameters (from, to, token, amount) returns 400-style error
Input
{
"to": "base",
"from": "ethereum",
"token": "USDC",
"amount": "1000"
}Output
{
"meta": {
"x402": true,
"poweredBy": "Alfred Zhang 🫡"
},
"query": {
"to": "base",
"from": "ethereum",
"token": "USDC",
"amount": 1000,
"toChainId": 8453,
"fromChainId": 1
},
"routes": [
{
"tags": [
"intent-based",
"fast",
"no-slippage"
],
"steps": 1,
"bridge": "Across Protocol",
"slippage": "0%",
"toAmount": "999.897722 USDC",
"fromAmount": "1000 USDC",
"gasCostUsd": "see totalCostUsd",
"totalCostUsd": "$0.1023",
"estimatedTime": "~1 min",
"protocolFeesUsd": "$0.1023",
"relayFeePercent": "0.0102%",
"estimatedTimeSec": 2
},
{
"url": "https://bridge.base.org",
"tags": [
"canonical",
"trustless",
"official"
],
"steps": 1,
"bridge": "Official Base Bridge (Optimism Stack)",
"warning": null,
"slippage": "0%",
"toAmount": "1000 USDC",
"fromAmount": "1000 USDC",
"gasCostUsd": "~$1–5 (Ethereum gas)",
"totalCostUsd": "~$1–5 (gas only)",
"estimatedTime": "~1–3 min (deposit)",
"protocolFeesUsd": "$0.00",
"estimatedTimeSec": 120
},
{
"url": "https://stargate.finance",
"note": "Fee is an estimate — get exact quote at stargate.finance",
"tags": [
"layerzero",
"instant-finality"
],
"steps": 1,
"bridge": "Stargate (LayerZero v2)",
"slippage": "0.01–0.04%",
"toAmount": "~999.400000 USDC",
"fromAmount": "1000 USDC",
"gasCostUsd": "~$0.50–2.00 (chain-dependent)",
"totalCostUsd": "~$1.60",
"estimatedTime": "~3–15 min",
"protocolFeesUsd": "~$0.6000 (~0.06%)",
"estimatedTimeSec": 480
},
{
"tags": [
"cheapest"
],
"steps": 1,
"bridge": "Unknown Bridge",
"slippage": "0.250%",
"toAmount": "997.495404 USDC",
"fromAmount": "1000 USDC",
"gasCostUsd": "$0.1481",
"totalCostUsd": "$2.6476",
"estimatedTime": "~15 min",
"protocolFeesUsd": "$2.4995",
"estimatedTimeSec": 900
}
],
"source": "Li.Fi aggregator + Across Protocol API + Stargate estimates + Official Base Bridge",
"summary": "Found 4 routes for 1000 USDC from ethereum → base. Cheapest: Across Protocol at $0.1023.",
"warnings": [
"Always verify quotes on the bridge UI before transacting. Prices change rapidly."
],
"bestPicks": {
"fastest": {
"time": "~1 min",
"bridge": "Across Protocol",
"totalCost": "$0.1023"
},
"cheapest": {
"time": "~1 min",
"bridge": "Across Protocol",
"totalCost": "$0.1023"
}
},
"updatedAt": "2026-06-12T03:53:15.367Z",
"routeCount": 4
}Schema · Response
{
"type": "json",
"example": {
"description": "Compare bridge routes & costs for Base: Across, Stargate, official Base Bridge. Returns routes sorted by cost. Params: ?from=ethereum&to=base&token=USDC&amount=1000"
}
}Tags
x402
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