# HTTPay Bridge Intel — Cross-Chain Bridge Route Comparator

> 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.

## Facts

- Endpoint: POST https://httpay.xyz/api/bridge-intel
- Price: $0.02/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-13
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/httpay-xyz-d39b3bed
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_XqfbZCm2i99hXO6iQRUz3

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-xyz-d39b3bed -d '<json body>'
```

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.

## When to prefer this

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.

## Known failure modes

- 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

## 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 request

```json
{
 "to": "base",
 "from": "ethereum",
 "token": "USDC",
 "amount": "1000"
}
```

## Response schema (JSON Schema)

```json
{
 "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"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/httpay-xyz-d39b3bed/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)