{"uid":"cap_lIG2k7cA-b5uDqBa2GPzN","slug":"tech-detect-technology-stack-detection-via-x402-910b220b","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/cloudfront?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_LFihgNUuWPhbPlh4u_tlC","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 over x402.","exampleAgentPrompt":"Can you scan stripe.com and tell me what technologies it's running — framework, CDN, analytics, anything you can detect — along with confidence scores for each hit?","exampleUseCases":[{"title":"Competitive tech stack reconnaissance","prompt":"I want to know what technologies Shopify's main website is built on — frontend framework, CDN, analytics, A/B testing tools, everything. Give me confidence scores for each one."},{"title":"CDN and infrastructure audit","prompt":"Can you check whether our competitor's site at acme.com is using CloudFront, Fastly, or some other CDN, and what server-side tech they're running? I need confidence levels too."},{"title":"Incremental monitoring for tech changes","prompt":"Last week I scanned notion.so and got back React, Cloudflare, and Segment. Can you re-scan it now and tell me if anything has changed or been added to their stack since then?"}],"resultDescription":"Returns a list of detected technologies for the given domain, each with a name, category (e.g. CDN, CMS, JavaScript framework), version if detectable, confidence score, and supporting evidence. The response enables downstream competitive analysis, security auditing, or infrastructure monitoring.","failureModes":["Unresolvable or unreachable domain returns an error or empty technology list","Domain actively blocking fingerprinting probes may yield low confidence or incomplete results","Rate limits or payment failures via x402 protocol result in a 402 Payment Required response","Malformed URL input returns a validation error","Very new or obscure technologies may not be detected or may be miscategorized"],"whenToPreferThis":"Choose this endpoint when you need pay-as-you-go technology stack detection with no API key or signup overhead, and want structured confidence scores with evidence per technology. It is especially useful for sporadic or automated scans where subscription pricing is wasteful. The optional 'previous' parameter makes it efficient for change-detection workflows by providing prior scan context. Prefer it over free browser extensions when you need programmatic, agent-callable results with cryptographic payment via x402.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-13T00:41:38.552Z","isFirstParty":false,"canonicalSlug":"tech-detect-technology-stack-detection-via-x402-35a93e11"}