# ShieldAPI URL Safety Check

> ShieldAPI URL Safety Check is a paid API for AI agents from shield.vainplex.dev, paid per call via x402, $0.003/call, status unknown (last checked 2026-09-14).

Checks a given URL for safety threats, malicious content, and security risks using security intelligence data

## Facts

- Endpoint: GET https://shield.vainplex.dev/api/cdp/check-url
- Price: $0.003/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/shield-vainplex-dev-bd126572
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_pd_NlVdLVd_0EiIH42oCR

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 shield-vainplex-dev-bd126572
```

Example prompt: Can you check whether this URL is safe before I open it — https://suspicious-promo-link.xyz/offer123 — I want to know if it's a phishing site or has any malware associated with it.

## When to prefer this

Use this endpoint when you need to verify the safety of a specific URL before accessing it, sharing it, or allowing users to navigate to it. Ideal for security-conscious workflows, link preview validation, or content moderation pipelines where URL threat intelligence is needed.

## Known failure modes

- Invalid or malformed URL returns validation error
- Unreachable or non-existent URL may return unknown status
- Rate limiting if too many requests are made
- Payment failure (402) if x402 payment is not completed
- Private/internal IP URLs may be rejected

## How this service works

ShieldAPI - x402 security preflight before agents open, pay, or follow untrusted URLs

## Output

Returns a security assessment of the provided URL including safety verdict, threat classification, risk indicators, and whether the URL is associated with malicious activity such as phishing, malware, or other threats.

## Example request

```json
{
 "input": {
  "type": "http",
  "method": "GET",
  "queryParams": {
   "url": "https://www.example.com"
  }
 }
}
```

## 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"
    },
    "queryParams": {
     "type": "object",
     "required": [
      "url"
     ],
     "properties": {
      "url": {
       "type": "string",
       "description": "URL to check for safety and threats"
      }
     }
    }
   },
   "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/shield-vainplex-dev-bd126572/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from shield.vainplex.dev](https://www.zero.xyz/host/shield.vainplex.dev/llms.txt)