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tariffmonkee.com URL Safety Checker (linkcheck)
x402
tariffmonkee.com URL Safety Checker (linkcheck) is a paid API for AI agents from tariffmonkee.com, paid per call via x402, $0.005/call, status unknown (last checked 2026-10-30).
Checks a URL's redirect chain, detects homograph/punycode hostname tricks, and cross-references the destination against URLhaus threat intelligence to return a safety verdict.
Price / call$0.005
Success—
StatusUnknown
How this service works
URL safety verdict: follows the redirect chain, detects homograph and punycode hostname tricks, and cross-references the destination host against the URLhaus threat feed. Returns safe, suspicious or malicious with reasons. Single-URL scope; domain-wide grading is /sitegrade and registration facts are /domain-intel.
Output
A safety verdict for the submitted URL, including the full redirect chain analysis, detection of homograph or punycode hostname obfuscation techniques, and a cross-reference result against the URLhaus malicious URL threat feed indicating whether the destination host is flagged.
Example use cases
Phishing link triage in email
“Someone forwarded me a link that looks like it's from my bank: https://secure-bankofamerica.login-verify.com/auth — can you check if this URL is safe or if it's using any lookalike domain tricks before I open it?”
Pre-fetch safety gate for AI agent
“Before you scrape data from https://bit.ly/3xK9pQr, run a safety check on that URL — I want to know where it redirects and whether the final destination is flagged as malicious.”
Vetting a shared link before publishing
“I'm about to include https://freesoftware-download.net/tool.exe in our newsletter — can you verify if that URL is safe, check its redirect chain, and confirm it's not listed in any threat databases?”
Technical details
Endpoint
GEThttps://tariffmonkee.com/paid/linkcheck?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a fast, single-URL safety verdict before fetching, sharing, or acting on a link — especially when homograph/punycode domain spoofing or redirect-chain obfuscation are concerns, and you want URLhaus threat feed cross-referencing. Use /sitegrade for a full domain security configuration grade, and /domain-intel for WHOIS/registration facts. Use the /bundle endpoint if you want all three checks at once.
Side effects
- Invalid or malformed URL returns an error
- URL is unreachable or times out during redirect chain analysis
- URLhaus feed lookup may have temporary availability issues
- Highly obfuscated URLs may partially evade redirect chain resolution
- Payment not settled causes 402 response before check is performed
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"url": "https://github.com/anthropics/claude-code",
"reasons": [
"Host has 9667 URLs listed in URLhaus, but this exact URL is not listed and the domain is on no blocklist. Large shared hosts get listed one URL at a time, so this is not treated as a risk signal."
],
"verdict": "safe",
"threatFeed": {
"tags": [
"IRAHook"
],
"found": true,
"source": "urlhaus",
"status": "offline",
"queried": "github.com",
"dateAdded": "2026-10-17 05:34:06 UTC",
"reference": "https://urlhaus.abuse.ch/url/3951152/",
"hostUrlCount": 9667,
"exactUrlMatch": false,
"hostBlacklists": {
"surbl": "not listed",
"spamhaus_dbl": "not listed"
}
},
"punycodeFlag": false,
"homoglyphFlag": false,
"finalDestination": "https://github.com/",
"redirectChainLength": 0
}
}Tags
x402
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