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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, returning confidence scores and evidence for each identified technology, paid 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 for the target domain, each with a name, category (e.g. CMS, analytics, CDN), version if detectable, a confidence score indicating how certain the detection is, and evidence supporting the identification.
Example use cases
Competitor technology audit
“I'm researching our competitor at intercom.com — can you detect what technologies they're running on their website? I want to know their stack including frontend frameworks, analytics, CRM tools, and hosting infrastructure.”
Sales lead enrichment for SaaS outreach
“I have a list of prospect websites and I need to know which ones are already using Salesforce or HubSpot so I can tailor my outreach. Start with shopify.com and tell me what marketing and CRM tools their site is running.”
Monitoring tech stack changes over time
“I scanned stripe.com last week and found they were using React, Next.js, and Cloudflare. Can you scan it again now and tell me if anything in their technology stack has changed since then?”
Technical details
Endpoint
POSThttps://stack.halowerk.com/stack/articles/tidio?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need per-call, no-signup technology fingerprinting of a specific domain with confidence and evidence per hit. Ideal for agents that need to enrich lead data, monitor competitor stacks, or do one-off technology lookups without maintaining API key subscriptions. The x402 micropayment model makes it suitable for low-volume or sporadic lookups where a monthly subscription would be wasteful. The optional 'previous' field enables change-detection workflows by comparing current results against a prior scan.
Side effects
- Invalid or unreachable URL returns an error or empty technology list
- Payment failure via x402 results in 402 response and no data returned
- Domain with heavy obfuscation or bot protection may yield low-confidence or incomplete results
- Malformed input URL (missing scheme or exceeding 2048 chars) causes validation error
- Previously observed technology list exceeding 150 items will be rejected by schema validation
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| url | string | |
| previous | object |
Tags
x402
Reviews
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