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Tech Detect — Pay-Per-Call Technology Stack Detection
x402
Tech Detect — Pay-Per-Call 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 2026-10-12).
Detects the technology stack of a given domain, 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
Returns a structured list of detected technologies, each with a name, category (e.g. CMS, CDN, JavaScript framework), version where detectable, a confidence score, and supporting evidence. The response covers the full observable stack of the submitted URL.
Example use cases
Competitive tech stack research
“What's the full technology stack behind stripe.com? I need to know their frontend frameworks, backend signals, CDN, and any analytics or A/B testing tools they're running.”
Sales lead enrichment pipeline
“I'm building a list of prospects — can you detect the technology stack for acme.io so I know whether they're running Salesforce, HubSpot, or any other CRM we might integrate with?”
Security audit pre-assessment
“Before we start the pen test, can you fingerprint the tech stack at targetclient.com so we know what frameworks and server software to focus our testing on?”
Technical details
Endpoint
POSThttps://stack.halowerk.com/stack/articles/bootstrap?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need immediate, pay-as-you-go technology fingerprinting without API key registration. It is particularly well-suited for agents, automation pipelines, or one-off lookups where provisioning API credentials is impractical. The optional 'previous' field makes it efficient for incremental monitoring by passing prior results to detect changes. At $0.004 per call it is cost-effective for bulk domain enrichment workflows.
Side effects
- URL is unreachable or returns non-2xx — detection may be incomplete or return empty results
- Domain blocks scanning or cloaks headers — evidence may be sparse and confidence low
- Invalid URL format — request rejected with validation error
- Rate or payment failure via x402 — call not processed
- URL path pattern (e.g. /articles/bootstrap) may route to article-scoped detection rather than root domain analysis
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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