{"uid":"cap_F6xNfVudpkWRJQAjhlz8T","slug":"402utils-tech-stack-detector-4265800c","name":"402utils Tech Stack Detector","description":"Detect a website's tech stack — frameworks, CMS, e-commerce, analytics, tag managers, CDN, web server, language — from response headers, cookies, <meta generator> and HTML/script markers. HEURISTIC, signature-based on PUBLIC fingerprints (NOT the licensed Wappalyzer database): strong on popular tech, conservative elsewhere; not-listed ≠ absent. Each hit carries a confidence and the matched evidence. The URL is SSRF-checked; the fetch is capped.","url":"https://402utils.com/v1/tech-detect","method":"GET","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method"],"properties":{"type":{"type":"string","const":"http"},"method":{"enum":["GET"],"type":"string"},"queryParams":{"type":"object","required":["url"],"properties":{"url":{"type":"string","format":"uri","description":"Public http(s) page URL (required)."}},"description":"Query string only."}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object","required":["url","finalUrl","technologies","note"],"properties":{"url":{"type":"string","description":"The URL as requested."},"note":{"type":"string","description":"Honest scope disclaimer (heuristic, public signatures)."},"finalUrl":{"type":"string","description":"URL after redirects."},"technologies":{"type":"array","items":{"type":"object","required":["name","category","confidence","evidence"],"properties":{"name":{"type":"string"},"version":{"type":"string","description":"Best-effort version (from <meta generator>), when available."},"category":{"type":"string","description":"framework, cms, ecommerce, analytics, cdn, web-server, language…"},"evidence":{"type":"string","description":"What matched (e.g. 'html:__NEXT_DATA__', 'header:server=cloudflare')."},"confidence":{"enum":["high","medium","low"],"type":"string"}}},"description":"Detected technologies, highest confidence first."}}}}}}},"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_-f96rHwzr3JO8yYULgpTp","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 a website's technology stack — frameworks, CMS, e-commerce platforms, analytics, CDN, web server, and more — from HTTP headers, cookies, meta tags, and HTML markers using public signature fingerprints.","exampleAgentPrompt":"Can you figure out what tech stack https://www.shopify.com is running — like what CMS, framework, CDN, analytics tools, and web server they use?","exampleUseCases":[{"title":"Competitive tech stack intelligence","prompt":"I'm researching our top 5 competitors' websites. Can you scan each one and tell me what frameworks, e-commerce platforms, and CDNs they're using so we can understand their tech choices?"},{"title":"Security audit technology discovery","prompt":"We're doing a security assessment on a client's website. Can you identify all the frameworks, web servers, analytics tools, and third-party services running on their domain so we know what to focus on?"},{"title":"Pre-sales website tech validation","prompt":"Before we pitch our service to this prospect, can you check out their website and let me know what CMS, e-commerce platform, and tag managers they're currently using?"}],"resultDescription":"Returns a JSON object with the requested URL, final URL after redirects, and an array of detected technologies each containing: name (e.g. 'Next.js'), category (e.g. 'framework'), confidence level ('high'/'medium'/'low'), evidence string showing what matched (e.g. 'html:__NEXT_DATA__', 'header:server=cloudflare'), and optionally a best-effort version. Includes a disclaimer note about heuristic/public-signature scope.","failureModes":["URL fails SSRF safety check (private/internal IP ranges blocked)","Target site is unreachable or returns error status","Fetch times out due to cap on response size or latency","No technologies detected (not-listed does not mean absent)","Payment not received or insufficient USDC balance","Invalid or malformed URL provided"],"whenToPreferThis":"Use this endpoint when you need quick, heuristic technology fingerprinting of a public website without requiring access to the licensed Wappalyzer database. It is best for popular, well-known technology stacks where public fingerprints are strong. Prefer it for competitive research, pre-sales intelligence, security assessments, or automated site audits where a per-call micropayment model fits the workflow.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-15T00:40:34.476Z","isFirstParty":false}