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URL Safety Check
x402
URL Safety Check is a paid API for AI agents from safe.cyberwarex.com, paid per call via x402, $0.003/call, status unknown (last checked 2026-09-14).
Scores a URL for phishing risk using deterministic heuristics, returning a 0-100 risk score, a SAFE/SUSPICIOUS/DANGEROUS verdict, and labelled reasons — no API key required.
Price / call$0.003
Success—
StatusUnknown
How this service works
Score a URL for phishing risk before an agent opens or trusts it. Keyless, deterministic heuristics - typosquat / homoglyph of a known brand, punycode / mixed-script hosts, credentials-in-URL, raw-IP hosts, suspicious TLDs, over-deep subdomains - plus a best-effort domain-age check (young domains are a top phishing signal). Returns a 0-100 risk score, a SAFE / SUSPICIOUS / DANGEROUS verdict, and labelled reasons. No API keys, no LLM.
Output
Returns a JSON object containing: risk_score (0-100 integer, 0=clean), verdict (SAFE, SUSPICIOUS, or DANGEROUS), host, registrable_domain, labels (array of signal names), reasons (human-readable explanations), signals (raw signal object), and domain_age_days (integer or null from best-effort RDAP lookup).
Example use cases
Screening links before agent browses
“I'm about to let you browse to https://amaz0n-offers.ru/deals to grab product prices — can you first check if that URL is safe or if it looks like a phishing site?”
Flagging suspicious email links
“Someone emailed me a link to https://paypa1.account-verify.info/confirm — run a phishing risk check on it and tell me the verdict and any reasons it flagged.”
Brand-protection typosquat check
“We keep seeing traffic to https://g00gle.com being shared in our community — can you score that URL for phishing risk and check whether it's typosquatting a known brand?”
Technical details
Endpoint
GEThttps://safe.cyberwarex.com/checkWhen to prefer
Choose this endpoint when you need a fast, keyless, no-LLM phishing risk assessment of a URL before an agent or user opens it. Ideal for pre-flight link checks in agentic workflows, email triage, browser automation, or user-submitted URL validation. Prefer over general web-reputation APIs when you need deterministic, labelled heuristic signals (typosquatting, homoglyphs, punycode, credentials-in-URL, suspicious TLDs, domain age) without managing API credentials or paying per-seat subscription fees.
Side effects
- Missing or malformed 'url' query parameter returns an error
- RDAP domain age lookup may fail for some TLDs, returning null for domain_age_days
- Heuristics may produce false positives for legitimate domains using unconventional naming
- Very new or obscure TLDs may not be recognized in suspicious-TLD lists
- Private/intranet URLs or bare IPs may yield incomplete signal coverage
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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