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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 full technology stack of a given URL, returning identified technologies with confidence scores and evidence, billed 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 structured list of detected technologies for the given URL, each with a name, category (e.g. JavaScript framework, CDN, analytics), version if detectable, confidence score, and supporting evidence. May also return metadata about the scan such as observed timestamp.
Example use cases
Competitive tech stack audit
“I want to know exactly what technology stack my competitor's site shopify.com is running — frameworks, hosting, analytics, A/B testing tools, all of it. Can you scan it and show me each detected technology with how confident you are?”
Security recon for a client site
“Before we do a penetration test on acmecorp.com, can you fingerprint what technologies they're running so we know what vulnerabilities to look for?”
Monitor site for technology changes
“I scanned stripe.com last week and found React 18, Next.js 13, and Cloudflare. Can you re-scan it now and tell me if anything in their tech stack has changed since then?”
Technical details
Endpoint
POSThttps://stack.halowerk.com/stack/articles/youtube-embed?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need per-call, no-signup technology fingerprinting paid in USDC via x402 — ideal for agent workflows that need to detect tech stacks on-demand without API key management. It supports incremental scanning via a 'previous' observations payload, making it well-suited for change-detection workflows. Prefer this over scraping-based approaches when you need structured, categorized technology outputs with confidence scores rather than raw HTML analysis.
Side effects
- URL is unreachable or returns non-200 status — scan may fail or return partial results
- URL points to a page with minimal detectable signals — few or no technologies returned
- Malformed URL input — validation error returned
- Rate limiting or payment failure via x402 — request rejected before execution
- JavaScript-heavy single-page apps may expose fewer server-side technology signals
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| url | string | |
| previous | object |
Tags
x402
Reviews
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