# DeFi Shield Bridge Quote

> DeFi Shield Bridge Quote is a paid API for AI agents from defi-shield-hazel.vercel.app, paid per call via x402, $0.25/call, status unknown (last checked 2026-09-15).

Returns cross-chain bridge options, fee estimates, and timing for transferring tokens between blockchain networks

## Facts

- Endpoint: POST https://defi-shield-hazel.vercel.app/api/chain/bridge-quote
- Price: $0.25/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/defi-shield-hazel-vercel-app-3cc65fc7
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_RHnIIZbrFz7Dt3PzFJRnw

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-shield-hazel-vercel-app-3cc65fc7 -d '<json body>'
```

Example prompt: I want to bridge $500 USDC from Ethereum to Arbitrum — can you show me all the bridge options with their fees, estimated transfer times, and which one is recommended?

## When to prefer this

Use this endpoint when an agent needs to compare multiple bridge protocols for a cross-chain transfer, evaluate trade-offs between speed, cost, and trust model, or recommend the best bridge for a given amount and chain pair. Prefer this over executing a bridge directly since this is informational/advisory only.

## Known failure modes

- Unsupported chain pair returns error or empty options list
- Amount below bridge minimums may filter out some options
- Fees and timing are estimates and may not reflect real-time conditions
- Truncated or incomplete response if bridge data source is unavailable
- Invalid chain name input may cause a 400 or empty result

## How this service works

Get bridge options, fees, and timing estimates for cross-chain transfers

## Output

Returns a list of bridge options (e.g. Across, Stargate, Arbitrum Bridge) with estimated fee percentages, fee in USD, transfer time estimates, trust model descriptions, minimum amounts, and a top recommendation. Also includes a disclaimer that values are estimates and the endpoint cannot execute transactions.

## Example request

```json
{
 "to_chain": "arbitrum",
 "amount_usd": 500,
 "from_chain": "ethereum"
}
```

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "bodyType",
    "body",
    "method"
   ],
   "properties": {
    "body": {
     "properties": {
      "to_chain": {
       "type": "string",
       "description": "Destination chain name"
      },
      "amount_usd": {
       "type": "number",
       "description": "Amount in USD to bridge"
      },
      "from_chain": {
       "type": "string",
       "description": "Source chain name"
      }
     }
    },
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "POST"
     ],
     "type": "string"
    },
    "bodyType": {
     "enum": [
      "json",
      "form-data",
      "text"
     ],
     "type": "string"
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "notes",
  "to_chain",
  "timestamp",
  "amount_usd",
  "disclaimer",
  "from_chain",
  "recommended",
  "total_options",
  "bridge_options",
  "response_time_ms"
 ],
 "properties": {
  "notes": {
   "type": "string"
  },
  "to_chain": {
   "type": "string"
  },
  "timestamp": {
   "type": "string"
  },
  "amount_usd": {
   "type": "number"
  },
  "disclaimer": {
   "type": "string"
  },
  "from_chain": {
   "type": "string"
  },
  "recommended": {
   "type": "string"
  },
  "total_options": {
   "type": "number"
  },
  "bridge_options": {
   "type": "array",
   "items": {
    "type": "object",
    "required": [
     "name",
     "type",
     "trust_model",
     "estimated_time",
     "min_amount_usd",
     "estimated_fee_pct",
     "estimated_fee_usd"
    ],
    "properties": {
     "name": {
      "type": "string"
     },
     "type": {
      "type": "string"
     },
     "trust_model": {
      "type": "string"
     },
     "estimated_time": {
      "type": "string"
     },
     "min_amount_usd": {
      "type": "number"
     },
     "estimated_fee_pct": {
      "type": "number"
     },
     "estimated_fee_usd": {
      "type": "number"
     }
    }
   }
  },
  "response_time_ms": {
   "type": "number"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/defi-shield-hazel-vercel-app-3cc65fc7/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from defi-shield-hazel.vercel.app](https://www.zero.xyz/host/defi-shield-hazel.vercel.app/llms.txt)