# Verdix Address Risk (Standard)

> Verdix Address Risk (Standard) is a paid API for AI agents from api.verdixapi.com, paid per call via x402, $0.1/call, status unknown (last checked 2026-10-13).

Screens an EVM address on Base against OFAC sanctions lists, scam/blacklist databases, and on-chain behaviour analysis, returning a safe/caution/danger verdict at standard depth.

## Facts

- Endpoint: POST https://api.verdixapi.com/risk/address/standard?utm_source=zero.xyz
- Price: $0.1/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-13
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/verdix-address-risk-standard-4605d8ce
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_4lD3yFpd3HkthFGJUtMU8

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 verdix-address-risk-standard-4605d8ce -d '<json body>'
```

Example prompt: Before I send 500 USDC to 0x4e83362442b8d1bec281594cea3050c8eb01311c on Base, run a standard Verdix risk screen on that address and tell me if it comes back safe, caution, or danger.

## When to prefer this

Choose the standard tier when you need deeper analysis than the quick tier (which is faster but shallower) but don't require the most exhaustive possible investigation the deep tier provides. Ideal for regular automated agent workflows where moderate latency is acceptable and a balance of thoroughness and cost ($0.10/call) is appropriate — such as screening counterparty or payout addresses before mid-value transfers on Base.

## Known failure modes

- Invalid address format (not a valid 0x… EVM address) — validation error returned
- Chain other than 'base' specified — rejected, only Base is supported
- Address not yet on-chain or has zero history — may return limited signals with a safe default
- Payment failure (x402 protocol) — call blocked if USDC payment not processed
- Upstream data source unavailability — may degrade verdict accuracy or return an error

## How this service works

Verdix standard ($0.10): call before larger or repeated payments to an EVM address on Base, when an address-age read is not enough. Sanctions, scam/phishing lists, address poisoning and contract/deployer signals, plus on-chain behaviour analysis. Returns safe/caution/danger with reasons.

## Output

A JSON response containing a verdict of 'safe', 'caution', or 'danger', along with signals derived from OFAC sanctions databases, known scam/blacklist sources, and on-chain transfer history and activity pattern analysis for the queried Base address.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "chain": {
   "enum": [
    "base"
   ],
   "type": "string",
   "default": "base",
   "description": "Chain the address lives on - currently only Base is supported"
  },
  "address": {
   "type": "string",
   "pattern": "^0x[0-9a-fA-F]{40}$",
   "examples": [
    "0x71b749F58f63008672eEd55396151DC0C7493A78"
   ],
   "description": "EVM wallet address to screen, e.g. before sending it funds"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "errors": {
  "400": {
   "description": "Bad body or address (0x + 40 hex); {detail:[...]}. Not charged."
  },
  "402": {
   "description": "Unpaid or invalid payment; x402 challenge in PAYMENT-REQUIRED header."
  },
  "409": {
   "example": {
    "detail": "A request with this Idempotency-Key is already in progress."
   },
   "description": "Same Idempotency-Key still running; retry."
  },
  "429": {
   "description": "Rate limited per IP; back off."
  },
  "500": {
   "example": {
    "detail": "internal error"
   },
   "description": "Internal error. Not charged."
  },
  "503": {
   "description": "Data source down: verdict caution, data_unavailable:<check>, Retry-After. Not charged."
  }
 },
 "example": {
  "tier": "standard",
  "as_of": "2026-09-24T10:00:00+00:00",
  "chain": "base",
  "address": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
  "checked": [
   "ofac",
   "scam_lists",
   "onchain_age"
  ],
  "reasons": [],
  "verdict": "safe",
  "price_usd": 0.1,
  "risk_score": 5
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/verdix-address-risk-standard-4605d8ce/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.verdixapi.com](https://www.zero.xyz/host/api.verdixapi.com/llms.txt)