{"uid":"cap_IcoNd7uW9NPb_lnvua_SZ","slug":"tech-detect-pay-per-call-technology-stack-detection-bc056958","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/crisp?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_QeJg7LODav7qaQkYvQcrn","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 stripe.com and tell me what technologies they're using — frameworks, CDNs, analytics tools, anything you can detect — along with confidence scores for each hit?","exampleUseCases":[{"title":"Competitor tech stack audit","prompt":"I want to know what technology stack shopify.com is running — front-end frameworks, back-end servers, CDN, analytics, everything you can find, with confidence levels for each."},{"title":"Monitor stack changes over time","prompt":"Last week you told me notion.so was using CloudFront and Next.js. Can you re-scan it now and tell me if anything in their tech stack has changed since then?"},{"title":"Pre-sales tech qualification","prompt":"Before I pitch our migration service, can you detect what CMS and hosting technologies acmecorp.com is currently using so I know if they're a good fit?"}],"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, a confidence score, and supporting evidence. An optional 'previous' snapshot can be supplied to enable change-detection diffing.","failureModes":["Domain unreachable or returns non-200: detection may return empty or partial results","Invalid URL format: request rejected with validation error","Ambiguous or heavily obfuscated stack: low-confidence or no hits returned","Payment failure via x402: request not processed, no result returned","Rate limiting or anti-bot measures on target domain: reduced detection accuracy"],"whenToPreferThis":"Choose this endpoint when you need pay-as-you-go technology detection with no signup or API key, especially for one-off or low-volume scans. It is ideal for agents that need structured, confidence-annotated tech stack data with optional change-detection support via the 'previous' field. Prefer over scraping solutions when you need categorized, versioned technology hits rather than raw HTML.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-12T18:42:22.036Z","isFirstParty":false,"canonicalSlug":"tech-detect-pay-per-call-technology-stack-detection-60639ddd"}