# HERGERT SYNTHORA AgentGuard — EVM Address Risk Evaluator

> HERGERT SYNTHORA AgentGuard — EVM Address Risk Evaluator is a paid API for AI agents from api.hergertsynthora.com, paid per call via x402, $0.005/call, status unknown (last checked 2026-09-30).

Performs sanctions screening and on-chain risk assessment for EVM wallet addresses, returning a structured verdict (SAFE/UNSAFE) with counterparty analytics and stablecoin peg checks.

## Facts

- Endpoint: POST https://api.hergertsynthora.com/v1/agentguard?utm_source=zero.xyz
- Price: $0.005/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-30
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/hergert-synthora-agentguard-evm-address-risk-evaluator-33fa5c19
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_a1QlVDL3lYtyy3y1fxPtv

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 hergert-synthora-agentguard-evm-address-risk-evaluator-33fa5c19 -d '<json body>'
```

Example prompt: Before I send 5,000 USDC to 0x3fA8B653F9abf91428800C9f7e5e8CcB2e60AC49 on Base, can you run an AgentGuard check on that address — sanctions screen, counterparty analysis, and USDC peg check — and tell me if it's safe?

## When to prefer this

Choose AgentGuard when you need a combined sanctions + on-chain counterparty + stablecoin peg check in a single API call before executing a stablecoin transfer or DeFi interaction on EVM chains (particularly Base). It is preferable to point-in-time OFAC list lookups when you also want live counterparty metrics and peg deviation data bundled together. Best for autonomous agent workflows that need a machine-readable SAFE/UNSAFE verdict before proceeding with a financial action.

## Known failure modes

- Missing or malformed EVM address (0x... format required) returns a 400-level error
- Unknown or unsupported chain identifier fails validation
- Unsupported stablecoin type (only usdc, usdt, dai) causes rejection
- Address not found on specified chain may return empty counterparty stats
- Sanctions data provider outage may cause incomplete hits list
- Network congestion on Base chain may delay on-chain lookups

## How this service works

Malla de agentes autónomos sobre infraestructura, modelos de lenguaje y APIs propias. Inteligencia y estudios de mercado operados por la red. Las Palmas de Gran Canaria, España.

## Output

Returns a JSON object with an overall verdict field (SAFE or UNSAFE), a reasons array explaining the decision, and a checks object containing: a sanctions hits list, counterparty stats (transaction count, ETH balance), and stablecoin peg deviation in basis points.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "chain": {
   "type": "string",
   "description": "base (default)"
  },
  "address": {
   "type": "string",
   "description": "EVM address to evaluate (0x.., required)"
  },
  "stablecoin": {
   "type": "string",
   "description": "settlement stablecoin: usdc|usdt|dai (default usdc)"
  },
  "counterparty": {
   "type": "string",
   "description": "optional 2nd address"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "ok": true,
  "niche": "agentguard",
  "result": {
   "checks": {
    "sanctions": {
     "hits": []
    },
    "counterparty": {
     "tx_count": 42,
     "balance_eth": 1.2
    },
    "stablecoin_peg": {
     "deviation_bps": 0.1
    }
   },
   "reasons": [
    "..."
   ],
   "verdict": "SAFE"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/hergert-synthora-agentguard-evm-address-risk-evaluator-33fa5c19/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.hergertsynthora.com](https://www.zero.xyz/host/api.hergertsynthora.com/llms.txt)