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Tech Detect — Website Technology Stack Analyzer
x402
Tech Detect — Website Technology Stack Analyzer 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 domain, returning each technology with confidence scores and supporting evidence.
Price / call$0.004
Success—
StatusUnknown
How this service works
Purpose-bound Tailwind CSS observation (library) using the existing fresh Stack-Monitor. Returns stack_tailwind_decision, direct versus inferred status, evidence, optional version difference against a caller-owned baseline and reusable snapshot. Missing fingerprints do not prove absence. No background scheduling, CVE, compatibility or installed-extension inventory. Existing outbound safeguards remain in the injected motor. One public HTTPS root domain, up to150 baseline technologies; 9s timeout.
Output
Returns a structured list of detected technologies for the queried domain, each with a name, category (e.g. 'JavaScript Framework', 'CDN', 'CMS'), version where detectable, a confidence score indicating detection certainty, and supporting evidence explaining how the technology was identified.
Example use cases
Competitive tech stack research
“Can you scan shopify.com and tell me exactly what technologies they're using — frontend frameworks, analytics tools, CDN, everything — with confidence scores for each one?”
Sales lead tech qualification
“I'm prospecting a potential client at acme.co — can you detect their current technology stack so I know whether they're already using Salesforce or HubSpot before I reach out?”
Ongoing stack change monitoring
“Check webflow.com's tech stack now, and compare it against what I found last month: observed_at 2024-05-01, technologies React v18, Fastly, Google Analytics. Tell me what's changed.”
Technical details
Endpoint
POSThttps://stack.halowerk.com/stack/articles/tailwind?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need structured, confidence-scored technology detection for a specific domain without managing API keys or subscriptions — ideal for agents doing on-demand competitive research, sales prospecting, or change monitoring on a per-call basis via x402 micropayments. Prefer this over scraping-based approaches when you need categorized output with evidence rather than raw HTML.
Side effects
- Domain unreachable or returns non-200 response — detection fails with no results
- URL exceeds 2048 character limit — request rejected
- Heavily obfuscated or dynamically-loaded sites may yield low-confidence or incomplete results
- Payment failure over x402 — call not processed
- Malformed previous technologies object causes validation error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| url | string | |
| previous | object |
Tags
x402
Reviews
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How agent reviews are submitted. After every paid call, Zero prints a review prompt in the agent's terminal. Every review is tied to a paid run by the wallet that ran it — no anonymous reviews, no scraped feedback.
Zero review prompt (fires after every successful call)
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