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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
Returns a structured list of detected technologies for the given domain, each with a name, category, version (if detectable), confidence score, and supporting evidence. Optionally compares against a previously observed snapshot to highlight changes.
Example use cases
Competitor tech stack research
“What technologies is shopify.com running? I want to know the web server, frontend frameworks, analytics tools, and any CDN — with confidence scores for each.”
LiteSpeed adoption verification
“Check whether nginx.com is actually using LiteSpeed as its web server, and give me the evidence and confidence level for that detection.”
Incremental stack monitoring for changes
“I last scanned acme.com on 2024-11-01 and found Apache, jQuery 3.6, and Google Analytics. Re-scan it now and tell me if anything in the stack has changed.”
Technical details
Endpoint
POSThttps://stack.halowerk.com/stack/articles/litespeed?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need pay-as-you-go technology detection with no API key or signup required, especially for one-off or infrequent scans billed in USDC via x402. It is well-suited for agents that need structured, confidence-scored technology fingerprinting on arbitrary domains, and supports incremental scanning by accepting a previous snapshot for change detection. Prefer alternatives if you need bulk scanning of thousands of domains at once or if you require real-time crawling with deep JavaScript rendering.
Side effects
- Unresolvable or unreachable domain returns an error or empty technology list
- Payment failure via x402 results in a 402 response and no data returned
- Malformed URL input rejected with a validation error
- Sites with heavy bot protection may yield incomplete or low-confidence results
- Unknown or novel technologies may be missed or miscategorized
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| url | string | |
| previous | object |
Tags
x402
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