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Tech Detect — Web Technology Stack Detection
x402
Tech Detect — Web Technology Stack Detection is a paid API for AI agents from stack.halowerk.com, paid per call via x402, $0.004/call, status unknown (last checked 2026-10-13).
Detects the technology stack of a given domain, returning confidence scores and evidence for each identified technology.
Price / call$0.004
Success—
StatusUnknown
How this service works
Domain in, technology stack out. Confidence and evidence for every hit. Pay per call in USDC over x402. No signup, no API key.
Output
A list of detected technologies for the given domain, each with a name, category (e.g. 'CMS', 'Analytics', 'CDN', 'JavaScript Framework'), version (if detectable), confidence score, and supporting evidence. Results reflect the current live state of the domain.
Example use cases
Competitor tech stack audit
“I want to know what technology stack my competitor shopify.com is built on — what frontend frameworks, analytics, CDN, and e-commerce tools they're using, with confidence levels for each.”
Sales lead enrichment by tech stack
“Before my sales call, can you check what CMS and marketing automation tools stripe.com is currently running so I can tailor my pitch?”
Monitoring a site for technology changes
“I last scanned notion.so on 2024-11-01 and it was running React and Segment — can you re-scan it now and tell me if anything in its tech stack has changed?”
Technical details
Endpoint
POSThttps://stack.halowerk.com/stack/articles/adobe-fonts?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need per-call, no-signup technology detection with structured confidence and evidence output — especially when you do not want a recurring subscription and are comfortable paying $0.004 USDC per call via x402. It is ideal for ad-hoc audits, sales enrichment pipelines, or change-detection workflows where you pass previously observed technologies to highlight delta changes.
Side effects
- Domain is unreachable or returns non-200 status — detection may be incomplete or return empty results
- Heavily obfuscated or minified sites may yield lower confidence scores or miss technologies
- Rate limiting or bot protection on target domain may prevent full page inspection
- Invalid URL format returns a validation error
- Technologies with no public fingerprints (e.g. custom in-house stacks) will not be identified
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| url | string | |
| previous | object |
Tags
x402
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