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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 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
A structured list of technologies detected on the target domain, each with a name, category (e.g. CMS, CDN, analytics), version where identifiable, confidence score, and supporting evidence for the detection.
Example use cases
Competitor tech stack reconnaissance
“I want to know what technology stack acme.io is running — frameworks, analytics, CDN, everything you can detect. Give me confidence scores for each technology you find.”
Consent platform audit for compliance
“Can you check whether example.com is using OneTrust or any other consent management platform? I need to know what privacy tech they have deployed before our legal review.”
Ongoing stack change monitoring
“Last time we scanned stripe.com on 2024-11-01 it was running React and Fastly. Can you re-scan it now and flag any new technologies or changes since then?”
Technical details
Endpoint
POSThttps://stack.halowerk.com/stack/articles/onetrust?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need pay-as-you-go technology fingerprinting with no signup or API key overhead, especially in automated pipelines where per-call USDC micropayments via x402 are preferred over subscription billing. It is well-suited for one-off lookups, competitive intelligence workflows, or agents that scan arbitrary domains on demand. The optional 'previous' field makes it particularly useful for change-detection workflows where you want to diff the current stack against a known prior state.
Side effects
- URL is unreachable or returns non-200 status — detection may be incomplete or empty
- Domain blocks automated scanning — reduced or no fingerprint data returned
- Malformed or overly long URL input — validation error
- Previous observations schema mismatch — ignored or error returned
- Rate limiting or payment failure over x402 — call rejected before execution
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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