{"uid":"cap_beqOykoU_7GxXKeZw4kIv","slug":"tech-detect-technology-stack-detection-via-x402-ba96deda","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/calendly?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_UfgRc4szYz4cbTNmk_qSH","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 (frameworks, CMS, analytics, CDN, etc.) used by a given domain URL, returning confidence scores and evidence for each detected technology, paid per-call in USDC over x402.","exampleAgentPrompt":"Can you detect what technologies calendly.com is using — I want to know the full stack including frontend frameworks, CMS, analytics tools, and CDN, with confidence scores for each hit?","exampleUseCases":[{"title":"Competitor tech stack audit","prompt":"Scan shopify.com and tell me everything you can detect about their technology stack — frameworks, CDN, analytics, and anything else — with confidence scores for each technology found."},{"title":"Sales lead technology enrichment","prompt":"I have a prospect at hubspot.com — can you detect what technologies they're running so I know what tools they already use before I pitch them?"},{"title":"Security and compliance stack check","prompt":"Run a technology detection scan on stripe.com and tell me if they're using any known third-party analytics or tracking libraries, with evidence for each one you find."}],"resultDescription":"Returns a structured list of detected technologies for the given domain, each with a name, category (e.g. CMS, CDN, analytics, framework), version if detectable, a confidence score, and supporting evidence. May also flag technologies no longer detected compared to a previously observed baseline.","failureModes":["Invalid or unreachable URL returns an error or empty technology list","Domain blocks automated scanning, resulting in partial or low-confidence results","x402 payment failure causes request rejection before analysis begins","Malformed 'previous' object (missing required fields) causes validation error","Rate limiting or network timeouts on the target domain may reduce detection accuracy"],"whenToPreferThis":"Choose this endpoint when you need pay-as-you-go technology fingerprinting with no API key or subscription required — ideal for one-off lookups, agentic workflows, or enriching CRM/sales data on demand. Particularly useful when you want confidence scores and evidence per technology rather than just a yes/no result. The optional 'previous' snapshot field makes it well-suited for change-detection workflows where you want to diff the current stack against a known baseline.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-13T00:41:34.103Z","isFirstParty":false,"canonicalSlug":"tech-detect-technology-stack-detection-via-x402-35a93e11"}