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Tech Detect — Technology Stack Detection via x402
x402
Tech Detect — Technology Stack Detection via x402 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 (frameworks, CMSs, analytics tools, etc.) used by a given domain, returning confidence scores and evidence for each identified technology, paid per call in USDC over x402.
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 structured list of detected technologies for the given domain, each with its name, category (e.g. CDN, CMS, JavaScript framework, analytics), version if detectable, a confidence score, and supporting evidence for the detection. The response covers the full observable technology stack of the target URL.
Example use cases
Competitor tech stack audit
“I want to know exactly what technology stack our competitor stripe.com is using — frameworks, databases, CDN, analytics, all of it, with confidence levels for each one.”
Sales lead enrichment pipeline
“For each of these prospect domains, can you detect what e-commerce platform and CMS they're running so our sales team knows what integrations to pitch?”
Technology change monitoring
“I ran a tech scan on shopify.com last week — here are those results. Can you scan it again now and tell me if anything in their stack has changed?”
Technical details
Endpoint
POSThttps://stack.halowerk.com/stack/articles/klarna?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need pay-as-you-go technology stack detection with no API key or signup overhead, especially for one-off or low-volume scans where a subscription service is overkill. The x402 micropayment model ($0.004/call) makes it ideal for agents running ad-hoc competitive intelligence or lead enrichment workflows. The optional `previous` field makes it well-suited for change-detection use cases where you want to diff the current stack against a prior scan.
Side effects
- URL is unreachable or returns non-2xx status — detection may be partial or empty
- Domain uses aggressive bot-protection (Cloudflare challenge, CAPTCHA) — fingerprinting may be blocked
- Private or intranet URLs not accessible from the scanner — returns empty or error
- Malformed URL input — validation error returned
- x402 payment failure — call not processed, no result returned
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| url | string | |
| previous | object |
Tags
x402
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