{"uid":"cap_aelppzOFTvHqbEGhTt3E6","slug":"tech-detect-website-technology-stack-detection-e6750eda","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/svelte?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_Tw_FmcxBNkiMwUA_Q5M1S","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":"Analyzes a given domain URL and returns the full technology stack with confidence scores and evidence for each detected technology.","exampleAgentPrompt":"Can you scan stripe.com and tell me what technologies they're using — frameworks, CDNs, analytics tools, anything you can detect — with confidence scores for each?","exampleUseCases":[{"title":"Competitor technology stack audit","prompt":"I want to know what tech stack shopify.com is running — front-end framework, backend signals, analytics, CDN, everything you can find. Include confidence scores and any evidence you see."},{"title":"Sales lead technology profiling","prompt":"Before my call with acme.io, can you quickly detect what technologies they're using on their website? I'm especially interested in whether they're on Salesforce or HubSpot, and what their frontend stack looks like."},{"title":"Monitor stack changes over time","prompt":"Check notion.so for their current technology stack — last time I looked they were using React and Cloudflare. Have they changed anything? Here's the previous scan from 2024-11-01: React 18, Cloudflare, Segment."}],"resultDescription":"Returns a structured list of detected technologies, each with a name, category (e.g. 'JavaScript Framework', 'CDN', 'Analytics'), version where detectable, a confidence score, and supporting evidence (e.g. HTTP headers, script patterns, meta tags) that justify the detection.","failureModes":["URL is unreachable or returns non-200 status — detection fails or returns empty results","Domain is behind heavy bot protection (Cloudflare under attack mode) — limited or no technologies detectable","Malformed or non-URL input — validation error returned","Private or intranet domains — no public signals available","URL exceeds 2048 character limit — request rejected","Payment via x402 fails or USDC balance insufficient — call not processed"],"whenToPreferThis":"Choose this endpoint when you need fast, pay-per-call technology fingerprinting with no API key or subscription required. It is especially well-suited for one-off lookups, agent workflows that profile domains on demand, or competitive intelligence pipelines where you pay only for what you use. The optional 'previous' field makes it ideal for change-detection workflows where you want to diff against a prior scan. Prefer alternatives if you need bulk batch scanning at volume discounts or if you require real-time JavaScript-rendered page analysis.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-13T00:41:27.259Z","isFirstParty":false,"canonicalSlug":"tech-detect-website-technology-stack-detection-b6b49028"}