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Halowerk Stack Detector
x402
Halowerk Stack Detector is a paid API for AI agents from stack.halowerk.com, paid per call via x402, $0.003/call, status unknown (last checked 2026-09-14).
Detects the technology stack of a given hostname using signature matching against headers, cookies, asset paths, meta tags, and DNS/ASN records, returning confidence-scored hits with supporting evidence.
Price / call$0.003
Success—
StatusUnknown
How this service works
One HTTP request per host, matched against an in-house signature set. Every hit carries a confidence value from 0 to 100 and the evidence it rests on: response header, asset path, cookie name, meta generator, DNS or ASN record. Results are cached for 24 hours per host, so a repeat lookup of the same domain answers from cache.
Output
Returns a list of detected technology hits for the queried hostname, each with a confidence value from 0 to 100 and the evidence type that produced the hit (e.g. response header, asset path, cookie name, meta generator tag, DNS record, or ASN record). Results may be served from a 24-hour cache if the same host was queried recently.
Example use cases
Competitor tech stack research
“I want to know what CMS, analytics tools, and hosting provider my competitor stripe.com is using — can you fingerprint their tech stack and show me the evidence behind each detection?”
Security audit pre-assessment
“Before we do a security audit, can you identify the technologies running on target-company.com so we know what signatures to focus on? I need confidence scores and what evidence was used to detect each one.”
E-commerce platform identification
“Can you check what e-commerce platform and payment tools bestbuy.com is built on? I want to know the detected technologies with how confident you are for each one.”
Technical details
Endpoint
POSThttps://stack.halowerk.com/stackWhen to prefer
Choose this endpoint when you need fast, single-request technology fingerprinting of a public hostname with structured, confidence-scored evidence. It is ideal for competitive research, pre-engagement security recon, or enriching domain records with stack information. The 24-hour cache makes it efficient for repeated lookups. Prefer alternatives if you need full recursive crawling or real-time uncached detection.
Side effects
- Unknown or unresolvable hostname returns no hits or an error
- Heavily obfuscated sites with no detectable signatures return empty or low-confidence results
- Results may be stale up to 24 hours due to caching
- Private or localhost domains are unlikely to yield useful results
- High-confidence detections may be absent if the site strips identifying headers
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| url | string | Absolute http or https URL. Only the host matters for the cache; a path is followed but never probed separately. |
| render | boolean | Render the page in a headless browser before matching. Off by default: plain delivery is faster, cheaper on the origin and enough for almost every site. Turn it on for pages that build their markup entirely in JavaScript. |
| refresh | boolean | Bypass the 24 hour cache and fetch the origin again. Same price. |
Tags
x402
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