{"uid":"cap_kzVky-KDlB6LKn4-Xyhzh","slug":"tech-detect-web-technology-stack-fingerprinting-via-x402-c7d5ad35","name":"Tech Detect — Web Technology Stack Fingerprinting via x402","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/htmx?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_zdKJVbZ6Ka_NfsdIdboUJ","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 full technology stack of a given domain URL, returning identified technologies with confidence scores and evidence, billed per call in USDC over x402.","exampleAgentPrompt":"What technologies are powering stripe.com? I want confidence scores and evidence for each one detected — framework, CMS, analytics, CDN, everything you can find.","exampleUseCases":[{"title":"Competitor tech stack reconnaissance","prompt":"Can you detect the full technology stack for shopify.com? I want to know their frontend framework, CDN, analytics tools, and anything else you can identify with confidence scores."},{"title":"Monitoring a site for stack changes","prompt":"Scan linear.app for its current technology stack — I last checked it on 2024-11-01 and found it was using React and Cloudflare. Let me know if anything has changed or if there are new additions."},{"title":"Verifying htmx adoption on a known site","prompt":"Check whether htmx.org is actually using htmx itself, and tell me what other technologies you can detect on that domain — I want to see the full stack with confidence levels."}],"resultDescription":"Returns a list of detected technologies for the submitted URL, each with a name, category (e.g. JavaScript framework, CDN, CMS), version if detectable, a confidence score, and supporting evidence. May also include metadata about the scan such as observed timestamp.","failureModes":["URL is unreachable or returns non-200 — scan may fail or return empty results","Domain has bot-blocking or WAF that prevents fingerprinting — reduced detection coverage","Malformed URL input — validation error returned","Payment via x402 fails or is insufficient — request rejected before scan runs","Site uses heavy obfuscation or custom stack — low confidence scores or no detections"],"whenToPreferThis":"Choose this endpoint when you need per-call, no-signup technology fingerprinting with structured confidence scores and evidence, payable in USDC. Ideal for agents that need to scan arbitrary domains on demand without managing API keys. Prefer over bulk/subscription scanning services when call volume is low or unpredictable, and over manual inspection when automation or structured output is required.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-12T18:44:39.233Z","isFirstParty":false,"canonicalSlug":"tech-detect-web-technology-stack-fingerprinting-via-x402-c7d5ad35"}