# CompliAPI VPN/Proxy Detection

> CompliAPI VPN/Proxy Detection is a paid API for AI agents from api.compliapi.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-11).

Detects whether a given IP address is using a VPN, proxy, or other anonymization service, returning a true/false/unknown result.

## Facts

- Endpoint: GET https://api.compliapi.com/api/v1/vpn/:ip_address?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-11
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/compliapi-vpn-proxy-detection-d32358a2
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_drpwd3VuAIIbEzEtvCVwQ

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 compliapi-vpn-proxy-detection-d32358a2
```

Example prompt: Before I process this transaction from IP 104.28.32.1, can you check if that IP is using a VPN or proxy?

## When to prefer this

Use this endpoint when you need a fast, per-IP check on whether a connecting client is hiding their real location behind a VPN, proxy, or anonymization service — particularly before applying geolocation-dependent compliance rules, fraud scoring, or access gating. It is purpose-built for compliance workflows alongside sibling endpoints for sanctions screening, geolocation, and wallet screening on the same platform.

## Known failure modes

- IP address not found or no privacy data available — returns unknown rather than true/false
- Invalid IP address format — likely returns an error or bad-request response
- Rate limiting or quota exhaustion — HTTP 429 or payment required
- Newly allocated or private IP ranges may consistently return unknown

## How this service works

Detect whether an IP address is using a VPN, proxy or other anonymization service. Call before trusting an IP's geolocation for compliance rules, fraud checks or access gating. Returns vpn true/false, or "unknown" when no privacy data exists for the IP.

## Output

Returns a JSON object indicating whether the IP address is using a VPN, proxy, or other anonymization service. The `vpn` field is `true` if anonymization is detected, `false` if it is not, or `"unknown"` if no privacy data exists for that IP.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET"
     ],
     "type": "string"
    },
    "pathParams": {
     "type": "object",
     "required": [
      "ip_address"
     ],
     "properties": {
      "ip_address": {
       "type": "string",
       "description": "IPv4 or IPv6 address"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/compliapi-vpn-proxy-detection-d32358a2/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.compliapi.com](https://www.zero.xyz/host/api.compliapi.com/llms.txt)