{"uid":"cap_yrd4HmWXnkvcQhu5ZsEak","slug":"tech-detect-technology-stack-detection-via-x402-b7d00435","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/oxid?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_IFuQjKPgv1rgE4wW3GN0a","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 over x402.","exampleAgentPrompt":"Can you detect what technology stack shopify.com is running — I want to know the frameworks, CMS, CDN, and any analytics tools, with confidence scores for each hit?","exampleUseCases":[{"title":"Competitor tech stack research","prompt":"Find out what technologies example-competitor.com is using — I need to know their frontend framework, backend stack, and any marketing or analytics tools they have installed."},{"title":"Sales lead enrichment with tech data","prompt":"Before my call with acme-corp.com, can you detect what CMS and e-commerce platform their website is built on so I can tailor my pitch?"},{"title":"Security audit tech fingerprinting","prompt":"I need to fingerprint targetsite.io's technology stack and compare it against what we observed last month — here's what we saw previously: WordPress 6.2, PHP 8.1, Cloudflare. Flag anything that's changed or newly detected."}],"resultDescription":"Returns a list of detected technologies for the given domain, each entry including the technology name, category (e.g. CMS, CDN, JavaScript framework), version (if detectable), a confidence score, and supporting evidence for the identification. Optionally highlights changes relative to a previously observed snapshot.","failureModes":["Invalid or unreachable URL returns an error or empty technology list","Payment failure over x402 results in a 402 response with no detection performed","Highly obfuscated or private sites may return low-confidence or empty results","Malformed 'previous' snapshot object causes validation errors","Rate limiting or bot protection on the target domain may reduce detection accuracy"],"whenToPreferThis":"Choose this endpoint when you need on-demand, pay-per-call technology fingerprinting with no account setup or API key management. It is especially suitable for agents that need sporadic or one-off stack detection, want to track technology changes over time using the 'previous' snapshot parameter, or require per-call USDC micropayment billing rather than a subscription. Prefer alternatives if you need bulk batch processing of many domains simultaneously or require deep JavaScript rendering for SPA detection.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-11T11:30:10.170Z","isFirstParty":false,"canonicalSlug":"tech-detect-technology-stack-detection-via-x402-35a93e11"}