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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).
Detects the technology stack of a given domain, returning each identified technology with confidence scores and evidence.
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 queried domain, each with a name, category (e.g. CMS, CDN, analytics, JavaScript framework), version where detectable, confidence score, and supporting evidence. The response covers the full observable technology stack from frontend frameworks to infrastructure providers.
Example use cases
Competitive tech stack research
“What technologies is my competitor hubspot.com running? I want to see every tool, framework, and platform they use — especially their analytics and marketing stack.”
Sales lead qualification by tech stack
“I'm prospecting accounts that use Salesforce and Marketo — can you scan acmecorp.com and tell me exactly which marketing and CRM technologies they have deployed?”
Periodic tech stack change monitoring
“I scanned shopify.com last week and it was running React and Cloudflare — can you check it again now and tell me if anything in the stack has changed?”
Technical details
Endpoint
POSThttps://stack.halowerk.com/stack/articles/cleverreach?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need programmatic, pay-per-call technology fingerprinting without API key registration. It is well-suited for one-off lookups, agent workflows that scan many domains ad hoc, or pipelines where you want to pass previously observed technologies to detect changes. Prefer it over browser-based tools like BuiltWith or Wappalyzer when you need a machine-readable, structured JSON response with confidence scores and evidence, and when USDC micropayments via x402 fit your payment model.
Side effects
- Unresolvable or unreachable domain returns an error or empty technology list
- Private or heavily firewalled sites may yield few or no detections
- Low confidence detections may indicate ambiguous or obfuscated technology signals
- Malformed URL input returns a validation error
- Rate limits or payment failures over x402 result in HTTP 402 with payment details
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| url | string | |
| previous | object |
Tags
x402
Reviews
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