{"uid":"cap_rijf8OjUTvx4V3ZzpxE_s","slug":"tech-detect-technology-stack-detection-via-x402-b6fd6e93","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/vimeo-embed?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_EnMAjtkFacMdo-aY1ufLq","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 over x402.","exampleAgentPrompt":"Can you detect the technology stack for shopify.com and tell me what frameworks, CMS, analytics tools, and server tech they're running, with confidence scores for each hit?","exampleUseCases":[{"title":"Competitor tech stack audit","prompt":"I want to know what technologies my competitor stripe.com is using — their frontend framework, payment stack, CDN, analytics, everything. Can you scan their domain and give me a breakdown with confidence levels?"},{"title":"Sales lead enrichment for SaaS","prompt":"I'm targeting e-commerce sites for my Shopify migration service. Can you check what platform techcrunch.com is running so I know if they're a good prospect?"},{"title":"Security recon on a target domain","prompt":"Before our pentest engagement, can you fingerprint the tech stack on acmecorp.com and compare it against what we previously observed last month — flag anything new or changed?"}],"resultDescription":"A structured list of detected technologies, each with a name, category (e.g. CMS, JavaScript framework, analytics), version (if detectable), confidence score, and supporting evidence. The response covers the full technology stack visible on the target domain.","failureModes":["Invalid or unreachable URL returns an error with no technologies detected","Insufficient USDC payment via x402 results in a 402 Payment Required response","Private or localhost domains may return empty results","Rate limiting or bot protection on the target domain may reduce detection accuracy","Domain with minimal frontend may yield low-confidence or sparse results"],"whenToPreferThis":"Choose this endpoint when you need per-call, no-signup technology detection billed in USDC over x402 — ideal for agents that need to fingerprint websites on demand without managing API keys or subscriptions. The optional 'previous' parameter makes it particularly suited for change-detection workflows where you want to diff the current stack against a prior observation.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-13T00:41:31.765Z","isFirstParty":false,"canonicalSlug":"tech-detect-technology-stack-detection-via-x402-35a93e11"}