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Tech Detect — Technology Stack Detection for a Domain
x402
Tech Detect — Technology Stack Detection for a Domain 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 used by a given domain, returning identified technologies with confidence scores and evidence, 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 domain, each with a name, category (e.g. 'CMS', 'Analytics', 'CDN', 'JavaScript Framework'), version if detectable, confidence score, and supporting evidence. The response covers the full observable technology stack of the target URL.
Example use cases
Competitor tech stack audit
“Can you scan salesforce.com and tell me what frontend framework, backend stack, CDN, and analytics tools they're using? I want confidence scores for each hit.”
Verify Plausible analytics adoption
“Check whether linear.app is running Plausible Analytics — I need to know for sure, with evidence, if it's on their stack.”
Monitor stack changes over time
“I scanned notion.so last week and found they were using React 18 and Cloudflare. Can you re-check it now and flag any technologies that have changed or been added since then?”
Technical details
Endpoint
POSThttps://stack.halowerk.com/stack/articles/plausible?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need per-call, no-signup technology stack detection paid in USDC via x402 — ideal for agents that need occasional or one-off scans without committing to a subscription. The optional 'previous' field makes it especially useful for change-detection workflows where you want to diff the current stack against a prior observation. Prefer this over scraping-based alternatives when you need structured, confidence-scored output with categorized technology hits.
Side effects
- Domain is unreachable or returns non-200 response — detection may return empty or partial results
- Private or bot-protected sites may block scanning probes, reducing detection accuracy
- Heavily obfuscated or minified front-ends may yield lower confidence scores
- Payment failure via x402 will result in a 402 response and no detection output
- Malformed URL input may cause a validation error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| url | string | |
| previous | object |
Tags
x402
Reviews
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