# Bridge Risk Assessor

> Bridge Risk Assessor is a paid API for AI agents from bridgerisk.hergertsynthora.com, paid per call via x402, $0.1/call, status unknown (last checked 2026-09-13).

Assesses the security risk of a cross-chain bridge by combining live TVL data, audit status, and hack history into a 0-100 risk score with categorical signal and explicit risk factors

## Facts

- Endpoint: POST https://bridgerisk.hergertsynthora.com/service
- Price: $0.1/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-13
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/bridge-risk-assessor-b0de1c1d
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_r2h6FgArKDC3O6HfOeRU7

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 bridge-risk-assessor-b0de1c1d -d '<json body>'
```

Example prompt: Before I move $50,000 USDC from Ethereum to Base using Stargate, can you run a bridge risk assessment and tell me the risk score, whether it's safe or critical, and what specific risk factors I should know about?

## When to prefer this

Use this endpoint when an agent needs to perform cross-chain bridge due diligence before routing funds — especially for large amounts or when using lesser-known bridges. Prefer this over generic DeFi analytics when you need a single consolidated risk signal that combines live on-chain TVL, audit status, and historical exploit data into one actionable score.

## Known failure modes

- Unknown or misspelled bridge name returns error or low-confidence result
- Bridge not indexed in DefiLlama returns incomplete TVL data
- Network timeout when fetching live TVL data
- Invalid chain names cause parameter rejection
- Payment of 0.002 USDC on Base not fulfilled returns 402 error

## How this service works

Evaluate bridge safety before moving funds cross-chain. TVL, audit status, incident history.

## Output

Returns a 0-100 risk score, a categorical risk signal (safe, caution, high_risk, or critical), and a list of explicit risk factors derived from live DefiLlama TVL and audit status combined with known bridge hack incidents and exploit history. Response is Ed25519-signed.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "bridge": {
   "type": "string",
   "description": "Bridge name e.g. stargate, across, hop, wormhole"
  },
  "to_chain": {
   "type": "string"
  },
  "amount_usd": {
   "type": "number"
  },
  "from_chain": {
   "type": "string"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "schema": {
  "type": "object",
  "required": [
   "ok",
   "niche"
  ],
  "properties": {
   "ok": {
    "type": "boolean"
   },
   "error": {
    "type": "string"
   },
   "niche": {
    "type": "string"
   },
   "result": {
    "type": "object",
    "properties": {
     "bridge": {
      "type": "string"
     },
     "signal": {
      "type": "string"
     },
     "to_chain": {
      "type": "string"
     },
     "amount_usd": {
      "type": "number"
     },
     "from_chain": {
      "type": "string"
     },
     "risk_score": {
      "type": "number"
     },
     "audit_status": {
      "type": "string"
     },
     "risk_factors": {
      "type": "array"
     },
     "bridge_tvl_usd": {
      "type": "number"
     },
     "volume_24h_usd": {
      "type": "number"
     }
    }
   },
   "receipt": {
    "type": "object"
   }
  }
 },
 "example": {
  "ok": true,
  "niche": "bridge_risk",
  "result": {
   "bridge": "stargate",
   "signal": "safe",
   "risk_score": 0,
   "audit_status": "audited",
   "risk_factors": [],
   "bridge_tvl_usd": 0,
   "incident_history": []
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/bridge-risk-assessor-b0de1c1d/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from bridgerisk.hergertsynthora.com](https://www.zero.xyz/host/bridgerisk.hergertsynthora.com/llms.txt)