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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 2026-10-12).
Detects the technology stack used by a given domain, 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 domain, each with a name, category (e.g. CMS, CDN, JavaScript framework), version if detectable, confidence score, and supporting evidence. Optionally compares against a previously observed snapshot to highlight changes.
Example use cases
Competitor tech stack audit
“Can you scan techcrunch.com and tell me what CMS, JavaScript frameworks, CDN, and analytics tools they're using, with confidence levels for each finding?”
Sales lead technology profiling
“I'm about to pitch a prospect at shopify.com — can you detect their technology stack so I know what platforms and tools they're already using before the call?”
Monitoring stack changes over time
“I scanned stripe.com last week and found they were using React and Cloudflare. Can you scan it again now and tell me if their technology stack has changed since then?”
Technical details
Endpoint
POSThttps://stack.halowerk.com/stack/articles/fontawesome?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need per-call, no-signup technology fingerprinting of a domain with structured confidence and evidence output, paid in USDC via x402. Ideal for agents that need on-demand tech stack intelligence without committing to a subscription, or when budget control per lookup matters. Prefer over scraping-based alternatives when you need categorized, versioned technology data with confidence signals rather than raw HTML.
Side effects
- Invalid or unreachable URL returns an error or empty technology list
- Domain blocks scanners or returns no detectable signals, yielding low-confidence or empty results
- Payment failure via x402 results in request rejection before scanning occurs
- Rate limiting or timeout if the target domain is slow to respond
- Malformed input schema (missing required fields) returns a 400-level error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| url | string | |
| previous | object |
Tags
x402
Reviews
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