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Tech Detect — Pay-Per-Call Technology Detection
x402
Tech Detect — Pay-Per-Call Technology Detection is a paid API for AI agents from stack.halowerk.com, paid per call via x402, $0.004/call, status unknown (last checked 2026-10-09).
Detects the technology stack of a given URL, returning confidence scores and evidence for each identified technology, paid per call in USDC via 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
Returns a list of detected technologies for the given URL, each with a name, category, version (if detectable), a confidence score, and supporting evidence. The response reflects what was observable at call time, and can be diffed against a previously observed snapshot if provided.
Example use cases
Competitive tech stack intelligence
“What technologies is shopify.com running right now? I want the full stack with confidence scores so I can compare it to our own infrastructure.”
Monitoring stack changes over time
“Check the tech stack on stripe.com and compare it against what we detected last month — observed_at was 2025-04-01 and we saw Next.js, React, and Cloudflare back then. Flag anything that's changed.”
Security audit of third-party vendor
“I need to know what technologies our vendor at acme-corp.io is running — specifically their server software, CDN, and any known CMS, so I can assess their security posture.”
Technical details
Endpoint
POSThttps://stack.halowerk.com/stack/articles/cloudflare-pages?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need structured, evidence-backed technology fingerprinting for a specific domain without managing API keys or subscriptions. Ideal for agents doing one-off or infrequent competitive intelligence, security audits, or stack monitoring where pay-per-call economics are preferable to a monthly plan. The optional 'previous' input makes it especially useful for change-detection workflows.
Side effects
- URL is unreachable or returns non-2xx, resulting in partial or empty detection results
- Highly obfuscated or client-rendered sites may yield low-confidence or missing detections
- Invalid URL format causes input validation error
- Rate limits or payment failures over x402 result in rejected calls
- Very new or niche technologies may not be in the detection fingerprint database
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| url | string | |
| previous | object |
Tags
x402
Reviews
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Zero review prompt (fires after every successful call)
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