{"uid":"cap_zjUt5b0kh8WIwQWDTKIC1","slug":"tech-detect-web-technology-stack-detection-via-x402-5cbe9723","name":"Tech Detect — Web 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/contao?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_D8CFS6xoxv2a-i1Y3LUE1","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 identified technologies with confidence scores and evidence, billed per call in USDC via x402.","exampleAgentPrompt":"Can you scan example.com and tell me what technologies it's running — frameworks, CMS, CDN, analytics, everything — with confidence scores for each hit?","exampleUseCases":[{"title":"Competitor tech stack audit","prompt":"I want to know exactly what technologies stripe.com is built on — CMS, frontend frameworks, CDN, payment tools, analytics — with how confident you are for each one."},{"title":"Recurring stack change monitoring","prompt":"Scan shopify.com for its current technology stack and compare it against this snapshot from last week to see if anything has changed."},{"title":"Sales lead technology profiling","prompt":"I'm prospecting a new client at acmecorp.com — can you detect what tech stack their website is running so I know what tools they already use before my call?"}],"resultDescription":"Returns a list of detected technologies for the given domain, each with a name, category (e.g. CMS, CDN, JavaScript framework), version if detectable, confidence score, and supporting evidence. May also indicate technologies that were previously observed but are no longer present when a prior snapshot is provided.","failureModes":["Invalid or unreachable URL returns an error or empty technology list","Payment failure over x402 results in 402 response and no data returned","Domain with aggressive bot-blocking may yield incomplete or low-confidence results","Malformed 'previous' snapshot object causes validation error","Rate limiting or timeout on the target domain may reduce detection accuracy"],"whenToPreferThis":"Choose this endpoint when you need no-signup, pay-per-call technology fingerprinting of a web domain without committing to a subscription. It is ideal for one-off scans, agent-driven competitive intelligence pipelines, or change detection workflows where you supply a previous snapshot. Prefer it over traditional Wappalyzer-style SaaS tools when you want programmable, cryptographically-settled per-call billing via x402 and USDC.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-13T00:41:14.911Z","isFirstParty":false,"canonicalSlug":"tech-detect-web-technology-stack-detection-via-x402-5cbe9723"}