# DeFi Cross-Chain Bridge Routes with Advanced Filtering

> DeFi Cross-Chain Bridge Routes with Advanced Filtering is a paid API for AI agents from defi.hugen.tokyo, paid per call via x402, $0.020000/call, status unknown (last checked 2026-09-13).

Returns ranked cross-chain bridge route alternatives with step-by-step execution plans, supporting preferred bridge filtering, max slippage, gas limits, and optimization priority (cheapest/fastest/safest).

## Facts

- Endpoint: POST https://defi.hugen.tokyo/defi/bridge/routes
- Price: $0.020000/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-13
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/defi-hugen-tokyo-44f9df31
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_aq8oF4_c_SxQmxwDnsId5

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 defi-hugen-tokyo-44f9df31 -d '<json body>'
```

Example prompt: Find me all ranked bridge routes for moving 1000 USDC from Ethereum to Arbitrum — filter to only use Stargate or Across, set max slippage to 0.5%, and optimize for cheapest cost, then show me the step-by-step execution plan for the best option.

## When to prefer this

Use this endpoint when you need more control than a simple best-quote lookup — specifically when you want to filter by specific bridge protocols, enforce gas limits, set strict slippage tolerances, or compare multiple ranked alternatives with full execution plans rather than just the single optimal route.

## Known failure modes

- Unsupported chain pair returns no routes found
- Invalid token address returns 400 bad request
- Slippage too low results in zero qualifying routes
- Preferred bridge unavailable for requested route returns empty filtered results
- Temporary bridge liquidity issues cause route unavailability

## How this service works

Multiple cross-chain bridge routes with advanced filtering — specify preferred bridges, max slippage, gas limits, and optimization priority (cheapest/fastest/safest). Returns ranked alternatives with step-by-step execution plans. Premium ($0.01). Accepts USDC payments on Base and Solana

## Output

A ranked list of cross-chain bridge route alternatives, each with step-by-step execution instructions, estimated gas costs, slippage predictions, bridge protocol used, and cost/speed/safety scores to help choose the best option.

## Request schema (JSON Schema)

```json
{
 "properties": {
  "input": {
   "required": [
    "method"
   ]
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/defi-hugen-tokyo-44f9df31/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from defi.hugen.tokyo](https://www.zero.xyz/host/defi.hugen.tokyo/llms.txt)