Tech Detect — Technology Stack Detection via x402

x402

Tech Detect — Technology Stack Detection via x402 is a paid API for AI agents from stack.netzhandwerker.de, paid per call via x402, $0.003/call, status unknown (last checked 2026-09-14).

Detects the technology stack (frameworks, CMSes, analytics, CDNs, etc.) used by a given website URL, returning confidence scores and evidence for each detected technology

Price / call$0.003

Seller volume →—

Success—

StatusUnknown

How this service works

One HTTP request per host, matched against an in-house signature set. Every hit carries a confidence value from 0 to 100 and the evidence it rests on: response header, asset path, cookie name, meta generator, DNS or ASN record. Results are cached for 24 hours per host, so a repeat lookup of the same domain answers from cache.

Output

Returns a structured object listing all detected technologies on the target domain, each with a name, category (e.g. CMS, CDN, JavaScript framework, analytics), a confidence score, and the evidence (HTTP headers, HTML patterns, script URLs, cookies, etc.) that triggered the match. Results are cached for 24 hours by default unless refresh is requested.

Example use cases

Competitive tech stack research

“What technologies is Shopify.com running under the hood? I want to see all detected frameworks, ecommerce platforms, CDN, and analytics tools with their confidence levels.”

Security audit pre-screening

“Before our pentest engagement, scan acmecorp.com and tell me every technology you detect on it — frameworks, server software, CMS, JavaScript libraries — along with the evidence for each hit.”

JavaScript-heavy SPA detection

“Can you detect the tech stack on app.linear.app? It's a heavily JavaScript-rendered single-page app, so make sure you render the page in a headless browser before scanning.”

Technical details

Endpoint

POSThttps://stack.netzhandwerker.de/stack

When to prefer

Choose this endpoint when you need fast, pay-per-call technology fingerprinting without any signup or API key — ideal for one-off competitive research, security pre-screening, or enriching domain records. It is especially useful for agents that need programmatic tech stack data on demand. Prefer setting render:true for modern SPAs built entirely in JavaScript, and refresh:true when you need live data rather than a cached result.

Side effects

Invalid or unreachable URL returns an error — only absolute http/https URLs accepted
If the target site blocks scrapers or returns non-standard responses, detection coverage may be reduced
JavaScript-rendered sites may show incomplete results if render flag is not set to true
Cache hit within 24 hours returns stale data unless refresh:true is passed
Payment failure over x402 protocol will block the call before any detection occurs
Very new or highly custom tech stacks may return low-confidence or zero detections

Input

Schema · Request body

Field	Type	Description
url	string	Absolute http or https URL. Only the host matters for the cache; a path is followed but never probed separately.
render	boolean	Render the page in a headless browser before matching. Off by default: plain delivery is faster, cheaper on the origin and enough for almost every site. Turn it on for pages that build their markup entirely in JavaScript.
refresh	boolean	Bypass the 24 hour cache and fetch the origin again. Same price.

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