# URL Safety Check

> URL Safety Check is a paid API for AI agents from automaton-tx-explainer.vercel.app, paid per call via x402, $0.005/call, status unknown (last checked 2026-10-17).

Checks a URL or hostname for phishing and scam indicators using blocklists, domain age, punycode detection, brand lookalike analysis, and HTTPS reachability.

## Facts

- Endpoint: GET https://automaton-tx-explainer.vercel.app/v1/url-safety?utm_source=zero.xyz
- Price: $0.005/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-17
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/url-safety-check-00c9248a
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_HXK5xbERFM_6VNYLz_KZ7

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 url-safety-check-00c9248a
```

Example prompt: Can you check if this URL is safe or a phishing site before I click it: https://metamask-airdrop-claim.io — look for blocklist hits, domain age, and any brand lookalike tricks.

## When to prefer this

Choose this endpoint when you need a fast, multi-signal phishing heuristic for a single URL — especially for Web3 and crypto contexts where MetaMask blocklist coverage is critical. It combines blocklist lookups, domain age, punycode detection, and brand-lookalike analysis in one call, making it more comprehensive than a single-source check. Best suited for pre-click link vetting in DeFi, NFT, or wallet contexts. Not a replacement for enterprise security tooling.

## Known failure modes

- URL too short (under 4 characters) — rejected by schema validation
- RDAP lookup failure for uncommon TLDs — domain age may be unavailable
- HTTPS reachability check timeout — reachability result may be inconclusive
- False negatives possible — new phishing domains not yet in blocklists
- Blocklist data may be slightly stale depending on update frequency

## How this service works

Check a URL for phishing/scam signals: MetaMask eth-phishing-detect + Phishing.Database blocklists, RDAP domain age, punycode and brand-lookalike detection, HTTPS reachability. Heuristic; not security advice.

## Output

Returns a structured safety report including whether the URL matches MetaMask eth-phishing-detect or Phishing.Database blocklists, the domain's registration age via RDAP, whether punycode encoding is detected, whether the domain resembles a known brand, and whether the site is reachable over HTTPS. Results are heuristic and not professional security advice.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "required": [
      "url"
     ],
     "properties": {
      "url": {
       "type": "string",
       "pattern": "^.{4,}$",
       "maxLength": 2048,
       "description": "http(s) URL or hostname"
      }
     }
    }
   },
   "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/url-safety-check-00c9248a/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from automaton-tx-explainer.vercel.app](https://www.zero.xyz/host/automaton-tx-explainer.vercel.app/llms.txt)