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Tech Detect — Web Technology Stack Detection
x402
Tech Detect — Web Technology Stack Detection is a paid API for AI agents from stack.halowerk.com, paid per call via x402, $0.004/call, status unknown (last checked 2026-10-13).
Analyzes a domain URL and returns its full technology stack with confidence scores and evidence for each detected technology, 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 domain, each with a name, category (e.g. CMS, CDN, analytics), version (if detectable), confidence score, and supporting evidence. May also return metadata about the scan such as timestamp.
Example use cases
Competitor tech stack research
“I want to know what technologies stack.halowerk.com's clients are using — can you scan acme-corp.com and tell me their full technology stack, including any ecommerce platform, CDN, and analytics tools with confidence levels?”
Monitoring a site for stack changes
“I scanned example.com last week and found it was running React and Cloudflare — can you scan it again now and flag anything that's changed since then?”
Sales lead enrichment by tech stack
“Can you check what marketing automation and CRM tools hubspot.com is running on their website? I need the technology names, categories, and version info if available.”
Technical details
Endpoint
POSThttps://stack.halowerk.com/stack/articles/usercentrics?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need per-call, no-signup technology detection with confidence and evidence — ideal for one-off enrichment, agent workflows, or competitive research where you don't want a monthly subscription. The x402 micropayment model makes it suitable for low-volume or bursty use cases. Prefer this over browser-based tools when you need structured, machine-readable output directly in an agent pipeline.
Side effects
- Invalid or unreachable URL returns an error or empty technology list
- Domain blocks crawlers, resulting in incomplete or no detection
- Payment failure via x402 prevents the call from executing
- Malformed input schema (missing url field) returns a 400-level error
- Previously seen technologies passed in 'previous' field may bias or constrain delta results if stale
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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