{"uid":"cap_HrixDBr-THhPLCF5CXukI","slug":"tech-detect-pay-per-call-technology-stack-detection-db8e2eff","name":"Tech Detect — Pay-Per-Call Technology Stack Detection","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/borlabs?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_gokIEWztphpru3dbtxnJK","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 confidence scores and evidence for each identified technology, paid per call in USDC via x402.","exampleAgentPrompt":"Can you detect the full technology stack for shopify.com — I want to know what CMS, frameworks, analytics tools, and hosting they use, with confidence scores for each hit?","exampleUseCases":[{"title":"Competitor technology stack audit","prompt":"Find out what technologies stripe.com is running — I want to know their frontend framework, CDN, analytics tools, and any payment or security tech, with confidence scores for each one."},{"title":"Detecting CMS and plugins for lead enrichment","prompt":"I'm building a list of prospects and I need to know if notion.so is running WordPress or any specific CMS — can you detect their tech stack and tell me what plugins or tools you find?"},{"title":"Monitoring tech stack changes over time","prompt":"Last time I checked vercel.com it was using Next.js version 13 and Google Analytics. Can you scan it again now and tell me if anything in their stack has changed?"}],"resultDescription":"Returns a structured list of detected technologies for the given domain, each with a name, category (e.g. CMS, CDN, analytics), version if detectable, confidence score, and supporting evidence. Supports a 'previous' field for differential analysis against a prior snapshot.","failureModes":["Domain unreachable or returns no HTTP response — detection may return empty results","URL exceeds 2048 characters — request rejected","Invalid or malformed URL input — request rejected","Payment failure via x402 — call not executed","Technology obfuscated or behind heavy WAF — low confidence or missed detections","Rate limits or blocks from the target domain — partial results"],"whenToPreferThis":"Choose this endpoint when you need pay-as-you-go technology detection with no API key or account signup, billed per call in USDC via x402. It is especially useful for agents that need sporadic or one-off stack fingerprinting without committing to a subscription. The optional 'previous' field makes it well-suited for change detection workflows where you already have a prior snapshot of the site's stack.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-12T18:38:20.436Z","isFirstParty":false,"canonicalSlug":"tech-detect-pay-per-call-technology-stack-detection-60639ddd"}