{"uid":"cap_lK32MFwfRX4FphPZhn-oA","slug":"tech-detect-technology-stack-detection-via-x402-b0f924ca","name":"Tech Detect — Technology Stack Detection 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/youtube-embed?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_6LnCgYIYxshW_WNxzAO-Y","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 URL, returning identified technologies with confidence scores and evidence, billed per-call in USDC via x402.","exampleAgentPrompt":"Can you scan https://articles.youtube.com/embed and tell me what technologies it's using — frameworks, CDNs, analytics, whatever you can detect — with confidence scores for each?","exampleUseCases":[{"title":"Competitive tech stack audit","prompt":"I want to know exactly what technology stack my competitor's site shopify.com is running — frameworks, hosting, analytics, A/B testing tools, all of it. Can you scan it and show me each detected technology with how confident you are?"},{"title":"Security recon for a client site","prompt":"Before we do a penetration test on acmecorp.com, can you fingerprint what technologies they're running so we know what vulnerabilities to look for?"},{"title":"Monitor site for technology changes","prompt":"I scanned stripe.com last week and found React 18, Next.js 13, and Cloudflare. Can you re-scan it now and tell me if anything in their tech stack has changed since then?"}],"resultDescription":"Returns a structured list of detected technologies for the given URL, each with a name, category (e.g. JavaScript framework, CDN, analytics), version if detectable, confidence score, and supporting evidence. May also return metadata about the scan such as observed timestamp.","failureModes":["URL is unreachable or returns non-200 status — scan may fail or return partial results","URL points to a page with minimal detectable signals — few or no technologies returned","Malformed URL input — validation error returned","Rate limiting or payment failure via x402 — request rejected before execution","JavaScript-heavy single-page apps may expose fewer server-side technology signals"],"whenToPreferThis":"Choose this endpoint when you need per-call, no-signup technology fingerprinting paid in USDC via x402 — ideal for agent workflows that need to detect tech stacks on-demand without API key management. It supports incremental scanning via a 'previous' observations payload, making it well-suited for change-detection workflows. Prefer this over scraping-based approaches when you need structured, categorized technology outputs with confidence scores rather than raw HTML analysis.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-13T00:41:23.220Z","isFirstParty":false,"canonicalSlug":"tech-detect-technology-stack-detection-via-x402-35a93e11"}