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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 technology stack of a given domain, returning each identified technology with confidence scores and evidence, billed per call in USDC over the x402 protocol.
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 target domain, each with a name, category (e.g. CMS, analytics, CDN), version if detectable, confidence score, and supporting evidence. Optionally compares against a previous scan to highlight changes.
Example use cases
Competitor tech stack audit
“I want to know exactly what technologies HubSpot's marketing site is built on — CMS, frontend frameworks, analytics, any A/B testing tools. Can you run a full tech stack scan and give me everything with confidence scores?”
Cookie consent tool verification
“I need to confirm whether complianz.io is actually using its own Complianz plugin, or something else for cookie consent. Scan the domain and show me the detected compliance and cookie management technologies.”
Monitoring for technology changes
“Last week I scanned stripe.com and found they were using Cloudflare and React. Can you re-scan it now and compare — tell me if anything in their stack has changed since my previous scan on 2024-06-01?”
Technical details
Endpoint
POSThttps://stack.halowerk.com/stack/articles/complianz?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need on-demand, pay-per-call technology fingerprinting with no API key or subscription required. It is ideal for agents that need to identify tech stacks infrequently or across many different domains without committing to a recurring plan. The optional 'previous' parameter makes it particularly useful for change-detection workflows. Prefer it over BuiltWith or Wappalyzer API subscriptions when cost-per-call economics matter or when you want to avoid credential management.
Side effects
- Invalid or unreachable URL returns an error or empty result set
- Domain blocks scanning bots, resulting in incomplete or low-confidence detections
- Payment failure over x402 protocol causes the request to be rejected before processing
- Malformed 'previous' object (missing required fields) causes a validation error
- Rate limits or network timeouts on the target domain may degrade result quality
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| url | string | |
| previous | object |
Tags
x402
Reviews
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