{"uid":"cap_v4f8BDQ7rje_tb5PTiL0U","slug":"tech-detect-website-technology-stack-detection-b6b49028","name":"Tech Detect — Website Technology Stack Detection","description":"Domain in, technology stack out. Confidence and evidence for every hit. Pay per call in USDC over x402. No signup, no API key.","url":"https://stack.halowerk.com/stack/articles/alpinejs?utm_source=zero.xyz","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"url":{"type":"string","maxLength":2048},"previous":{"type":"object","required":["observed_at","technologies"],"properties":{"observed_at":{"type":"string","maxLength":40},"technologies":{"type":"array","items":{"type":"object","required":["name","category","version"],"properties":{"name":{"type":"string","maxLength":150},"version":{"type":["string","null"],"maxLength":80},"category":{"type":"string","maxLength":80}},"additionalProperties":false},"maxItems":150}},"additionalProperties":false}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.004","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"probe","requiresHandshake":false,"reviewCount":0,"rating":{"score":"0.00","successRate":"0.00","reviews":0,"stars":null,"state":"unrated"},"availabilityStatus":"unknown","priceObserved":null,"sessionDeposit":null,"pricing":{"kind":"static","summary":"$0.004/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.004","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.004","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_pJEbDupqrLiFJ9qu4gV5t","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.004","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Detects the technology stack of a given domain URL, returning each identified technology with confidence scores and evidence, billed per call in USDC via x402.","exampleAgentPrompt":"What technologies is shopify.com running — give me the full stack with confidence scores and evidence for each hit.","exampleUseCases":[{"title":"Competitor tech stack audit","prompt":"What frontend and backend technologies is notion.so using right now? I want confidence scores and evidence for every technology you detect."},{"title":"Sales intelligence enrichment","prompt":"Scan stripe.com and tell me what CMS, analytics, and JavaScript frameworks they're using — I need this for a sales call."},{"title":"Change monitoring for client site","prompt":"Check what technologies acme.com is running today — I last saw them using Alpine.js, WordPress, and Cloudflare. Tell me if anything has changed since then."}],"resultDescription":"Returns a list of detected technologies for the given domain, each with a name, category (e.g. 'JavaScript Framework', 'CDN', 'CMS'), version (if detectable), confidence score, and evidence supporting the detection. The response covers the full observable technology stack from frontend libraries to hosting infrastructure.","failureModes":["URL is unreachable or returns non-200 — detection may be incomplete or return empty results","Domain has bot-detection or blocks headless crawlers — reduces detection coverage","URL input exceeds 2048 characters — rejected with validation error","Previous technologies array exceeds 150 items — rejected with schema error","Payment failure or insufficient USDC balance via x402 — call not executed","Private or intranet domains not accessible from the scanner's origin — no results returned"],"whenToPreferThis":"Choose this endpoint when you need structured, evidence-backed technology detection with per-technology confidence scores, without requiring account registration or API keys. It is especially well-suited for pay-as-you-go agent workflows where you want frictionless USDC micro-payments via x402. The optional `previous` field makes it ideal for change-detection scenarios where you want to diff against a prior scan.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-13T00:41:00.567Z","isFirstParty":false,"canonicalSlug":"tech-detect-website-technology-stack-detection-b6b49028"}