# NetIntel URL Safety Check

> NetIntel URL Safety Check is a paid API for AI agents from netintel-production-440c.up.railway.app, paid per call via x402, $0.05/call, status unknown (last checked 2026-09-13).

Checks a URL for malware, phishing, and other threats using blacklists and heuristic analysis, returning a safety grade and threat classification

## Facts

- Endpoint: GET https://netintel-production-440c.up.railway.app/url-safety/check
- Price: $0.05/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-13
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/netintel-url-safety-check-e25fccdc
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_O27NGt8AeE0dbrDzZjiqk

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 netintel-url-safety-check-e25fccdc
```

Example prompt: Can you check if this URL is safe — https://suspicious-deal.xyz/promo — I want to know if it's flagged for phishing or malware before I click it.

## When to prefer this

Use this endpoint when you need a multi-signal URL safety verdict combining blacklist lookups (URLhaus, Google Safe Browsing, SURBL) with heuristic analysis in a single call. Prefer it over single-source blacklist checks when you need a graded score, threat classification, and malware family attribution in one response. Ideal for pre-visit link validation, phishing detection pipelines, or automated threat triage at $0.05 per check.

## Known failure modes

- Missing or malformed 'url' query parameter returns validation error
- URL that cannot be resolved or parsed may return an error response
- Payment not provided or invalid x402 USDC payment returns 402 Payment Required
- Endpoint may return low confidence result for newly registered or obscure domains
- Rate limiting or infrastructure downtime may cause 5xx errors

## How this service works

Network intelligence API — 138 endpoints, all pay-per-call via x402 micropayments (USDC on Base or Solana mainnet).

NetIntel is agent fair-trade aligned: transparent per-call pricing in USDC on Base or Solana via x402, no API keys or signup, and automatic no-charge on server errors, upstream failures, and input-validation rejections — failed calls are never billed across NetIntel's network, domain, and data-intelligence endpoints.

## Output

A JSON object containing the checked URL, a letter grade (e.g. A–F), a numeric safety score (0–100), a threat_classification (e.g. 'clean', 'malware', 'phishing'), threat_type, confidence level, boolean flags for blacklists (Google Safe Browsing, SURBL, URLhaus), detected malware families, and heuristic warning flags.

## 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 malware and phishing indicators (e.g. https://example.com/page)"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object",
     "properties": {
      "url": {
       "type": "string"
      },
      "grade": {
       "type": "string"
      },
      "score": {
       "type": "number"
      },
      "findings": {
       "type": "array"
      },
      "confidence": {
       "type": "string"
      },
      "in_urlhaus": {
       "type": "boolean"
      },
      "threat_type": {
       "type": [
        "string",
        "null"
       ]
      },
      "urlhaus_status": {
       "type": [
        "string",
        "null"
       ]
      },
      "blacklisted_gsb": {
       "type": "boolean"
      },
      "heuristic_flags": {
       "type": "array",
       "items": {
        "type": "string"
       }
      },
      "malware_families": {
       "type": "array",
       "items": {
        "type": "string"
       }
      },
      "blacklisted_surbl": {
       "type": "boolean"
      },
      "urlhaus_reference": {
       "type": [
        "string",
        "null"
       ],
       "description": "URLhaus entry link when the URL is listed"
      },
      "threat_classification": {
       "type": "string"
      }
     }
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "url": "https://example.com/page",
  "grade": "A",
  "score": 100,
  "findings": [],
  "confidence": "none",
  "in_urlhaus": false,
  "threat_type": null,
  "urlhaus_status": null,
  "blacklisted_gsb": false,
  "heuristic_flags": [],
  "malware_families": [],
  "blacklisted_surbl": false,
  "urlhaus_reference": null,
  "threat_classification": "clean"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/netintel-url-safety-check-e25fccdc/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from netintel-production-440c.up.railway.app](https://www.zero.xyz/host/netintel-production-440c.up.railway.app/llms.txt)