{"uid":"cap_gd0bYSLRZfuvKFwCG8t0p","slug":"tech-detect-technology-stack-detection-via-x402-1a198a29","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/klarna?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_jpQkNO909N6-aatMXcN1C","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, CMSs, analytics tools, etc.) used by a given domain, returning confidence scores and evidence for each identified technology, paid per call in USDC over x402.","exampleAgentPrompt":"Can you scan klarna.com and tell me what technologies it's running — frameworks, CMS, analytics, CDN, anything you can detect — with confidence scores for each hit?","exampleUseCases":[{"title":"Competitor tech stack audit","prompt":"I want to know exactly what technology stack our competitor stripe.com is using — frameworks, databases, CDN, analytics, all of it, with confidence levels for each one."},{"title":"Sales lead enrichment pipeline","prompt":"For each of these prospect domains, can you detect what e-commerce platform and CMS they're running so our sales team knows what integrations to pitch?"},{"title":"Technology change monitoring","prompt":"I ran a tech scan on shopify.com last week — here are those results. Can you scan it again now and tell me if anything in their stack has changed?"}],"resultDescription":"A structured list of detected technologies for the given domain, each with its name, category (e.g. CDN, CMS, JavaScript framework, analytics), version if detectable, a confidence score, and supporting evidence for the detection. The response covers the full observable technology stack of the target URL.","failureModes":["URL is unreachable or returns non-2xx status — detection may be partial or empty","Domain uses aggressive bot-protection (Cloudflare challenge, CAPTCHA) — fingerprinting may be blocked","Private or intranet URLs not accessible from the scanner — returns empty or error","Malformed URL input — validation error returned","x402 payment failure — call not processed, no result returned"],"whenToPreferThis":"Choose this endpoint when you need pay-as-you-go technology stack detection with no API key or signup overhead, especially for one-off or low-volume scans where a subscription service is overkill. The x402 micropayment model ($0.004/call) makes it ideal for agents running ad-hoc competitive intelligence or lead enrichment workflows. The optional `previous` field makes it well-suited for change-detection use cases where you want to diff the current stack against a prior scan.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-13T00:41:25.792Z","isFirstParty":false,"canonicalSlug":"tech-detect-technology-stack-detection-via-x402-35a93e11"}