# Saylor Innovations URL Risk Inspector

> Saylor Innovations URL Risk Inspector is a paid API for AI agents from saylorinnovations.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-30).

Follows a URL's full redirect chain hop by hop, detecting phishing, punycode, IP hosts, brand lookalikes, URL shorteners, HTTP downgrades, and SSRF-guarded redirect analysis.

## Facts

- Endpoint: GET https://saylorinnovations.com/api/url/risk?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-30
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/saylor-innovations-url-risk-inspector-39d2594b
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_ZQQ08hIBwnl1MZfmKYDW9

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 saylor-innovations-url-risk-inspector-39d2594b
```

Example prompt: Can you inspect this link for me — https://bit.ly/3xR9mKw — and tell me if it's safe, where it actually redirects, and whether it raises any phishing or lookalike-domain flags?

## When to prefer this

Choose this endpoint when you need hop-by-hop redirect tracing combined with security signal detection (punycode, brand lookalikes, IP hosts, shorteners, HTTP downgrades, phishing patterns) in a single call with SSRF protection built in. Prefer it over generic HTTP-follow libraries when the agent needs a structured risk score and named flags rather than raw response data.

## Known failure modes

- URL is unreachable or times out — returns error or null final_status
- SSRF guard blocks private/internal IP ranges — request rejected with appropriate flag
- Malformed or non-HTTP/HTTPS URL provided — validation error
- Redirect loop detected — may return partial hop chain
- Rate limiting or payment failure for $0.01 USDC per call

## How this service works

Inspect a URL: follow its redirect chain hop by hop with SSRF guards, and flag punycode, IP hosts, brand lookalikes, shorteners, http downgrades and phishing patterns.

## Output

Returns a JSON object with the canonical input URL, the final resolved URL after all redirects, the number of redirects, an ordered array of redirect hops, a numeric risk score, a risk level label (e.g. low/medium/high), an array of risk/status flags (e.g. punycode, shortener, http-downgrade, brand-lookalike, ip-host, phishing-pattern), the final HTTP status code, a note with caveats, and the data source.

## 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": "the public http or https URL to inspect (a bare domain also works)"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "json"
    },
    "example": {
     "type": "object",
     "required": [
      "url",
      "final_url",
      "redirect_count",
      "hops",
      "risk_score",
      "risk_level",
      "flags",
      "note",
      "source"
     ],
     "properties": {
      "url": {
       "type": "string",
       "description": "Canonical URL"
      },
      "hops": {
       "type": "array"
      },
      "note": {
       "type": "string",
       "description": "Caveat or context for reading the result"
      },
      "flags": {
       "type": "array",
       "description": "Risk or status flags raised"
      },
      "source": {
       "type": "string",
       "description": "Data source the values come from"
      },
      "final_url": {
       "type": "string",
       "description": "Final URL"
      },
      "risk_level": {
       "type": "string",
       "description": "Risk level"
      },
      "risk_score": {
       "type": "number",
       "description": "Risk score"
      },
      "final_status": {
       "type": [
        "number",
        "null"
       ],
       "description": "Final status"
      },
      "redirect_count": {
       "type": "number",
       "description": "Number of redirect"
      }
     }
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/saylor-innovations-url-risk-inspector-39d2594b/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from saylorinnovations.com](https://www.zero.xyz/host/saylorinnovations.com/llms.txt)