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Tech Detect — Technology Stack Detection
x402
Tech Detect — 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 full technology stack of a given domain, returning each identified technology with confidence scores and supporting evidence
Price / call$0.004
Success—
StatusUnknown
How this service works
Purpose-bound Next.js observation (framework) using the existing fresh Stack-Monitor. Returns stack_nextjs_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 list of detected technologies for the given domain, each with its name, category (e.g. framework, CDN, analytics), version if detectable, a confidence score, and the evidence supporting the detection. If a prior scan result is provided, the response can indicate what has changed.
Example use cases
Competitor tech stack audit
“I want to know exactly what technologies Shopify is using on their main site — frameworks, CDN, analytics, payment tools — and how confident you are about each one.”
Lead enrichment for sales pipeline
“For each of these prospect domains, detect their technology stack so I can see which ones are using Salesforce or HubSpot before we reach out.”
Monitoring tech stack changes over time
“Last week you told me that acme.com was running WordPress with Cloudflare. Can you re-scan it now and flag anything that's changed since then?”
Technical details
Endpoint
POSThttps://stack.halowerk.com/stack/articles/nextjs?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need per-technology confidence scores and evidence trails, not just a raw technology list. Ideal for agents that need audit-grade stack detection with optional change-detection via the 'previous' parameter. Well-suited for pay-per-call workflows where signup and API key management are undesirable — payment is handled automatically via x402 USDC micropayments.
Side effects
- Domain is unreachable or returns non-200 responses — no technologies detected
- URL is malformed or exceeds max length — validation error
- Site uses heavy anti-bot measures — partial or empty results
- Version detection unavailable for certain technologies — version field returns null
- Previous scan object malformed — schema validation error
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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