# HTTPay Bridge Route Pinger — Cross-Chain Bridge Route Finder

> HTTPay Bridge Route Pinger — Cross-Chain Bridge Route Finder is a paid API for AI agents from httpay.xyz, paid per call via x402, $0.005/call, status unknown (last checked 2026-09-15).

Finds and ranks the best cross-chain bridge routes for a given token transfer, sorted by cost (cheapest first), powered by Li.Fi.

## Facts

- Endpoint: POST https://httpay.xyz/api/bridge-route-pinger
- Price: $0.005/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/httpay-bridge-route-pinger-cross-chain-bridge-route-finder-dcf36f35
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_Va8IKvYCz7eQyp5noKNMA

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability httpay-bridge-route-pinger-cross-chain-bridge-route-finder-dcf36f35 -d '<json body>'
```

Example prompt: Find me the cheapest bridge route to move 100 USDC from Base (chain 8453) to Ethereum mainnet (chain 1) with 0.5% slippage — I want to see which bridge costs the least.

## When to prefer this

Use this endpoint when you need to programmatically discover and compare cross-chain bridge routes without setting up API keys or subscriptions. Ideal for DeFi agents needing real-time bridge cost comparisons powered by Li.Fi's aggregated routing, with pay-per-call pricing at $0.005 USDC via x402 on Base.

## Known failure modes

- Invalid or unsupported chain IDs returns error or empty routes
- Token address not supported on specified chains
- Amount too small for bridge minimums
- Slippage value out of acceptable range
- No routes available between specified chains
- Payment of $0.005 USDC via x402 fails or is rejected

## How this service works

Find the best cross-chain bridge routes for any token transfer. Powered by Li.Fi. Returns top routes sorted by cost (cheapest first). Params: ?fromChain=8453&toChain=1&token=USDC&amount=100. Demo: ?demo=true.

## Output

Returns a ranked list of cross-chain bridge routes sorted by cost (cheapest first), including route details, fees, and provider information powered by Li.Fi, in JSON format.

## Example request

```json
{
 "route": "ethereum-to-base",
 "amount": "1000000",
 "slippage": "0.5",
 "tokenAddress": "0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48"
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "description": "Find the best cross-chain bridge routes for any token transfer. Powered by Li.Fi. Returns top routes sorted by cost (cheapest first). Params: ?fromChain=8453&toChain=1&token=USDC&amount=100. Demo: ?demo=true."
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/httpay-bridge-route-pinger-cross-chain-bridge-route-finder-dcf36f35/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from httpay.xyz](https://www.zero.xyz/host/httpay.xyz/llms.txt)