{"uid":"cap_YbjL6BMVClGKc2GoDWFnk","slug":"tech-detect-technology-stack-detection-via-x402-0c10e1b8","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/wpengine?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_QmmKeCRZaVlDd6n6wKcIC","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, returning confidence scores and evidence for each identified technology, billed per call in USDC via x402.","exampleAgentPrompt":"Can you detect what technologies wpengine.com is running — I want to see the full stack with confidence scores and evidence for each hit?","exampleUseCases":[{"title":"Competitor tech stack research","prompt":"What technologies is shopify.com built on? I want to know their frontend framework, CDN, analytics tools, and any other stack details you can detect, with confidence scores."},{"title":"Sales lead tech qualification","prompt":"Before I reach out to this prospect, can you check what CMS and marketing automation tools acmecorp.com is running? I need the detected technologies with their categories."},{"title":"Security audit pre-scan","prompt":"I'm doing a security review on targetsite.io — can you scan it for its full technology stack so I know what software versions and platforms are exposed?"}],"resultDescription":"An array of detected technologies for the target domain, each with a name, category (e.g. CMS, CDN, JavaScript framework), version if detectable, confidence score, and supporting evidence. Optionally compares against a previously observed snapshot to highlight changes.","failureModes":["Domain is unreachable or returns no HTTP response — empty or error result","URL is malformed or exceeds 2048 characters — validation error","Payment via x402 fails or is insufficient — 402 Payment Required","Target site uses heavy obfuscation or anti-fingerprinting measures — low confidence or empty results","Rate limiting or network timeout during remote fetch — transient error"],"whenToPreferThis":"Choose this endpoint when you need per-call, no-signup technology stack detection billed in USDC via x402, especially useful for agents that need occasional or unpredictable detection without committing to a subscription. Prefer this over Wappalyzer or BuiltWith API subscriptions when call volume is low or sporadic, or when you need results with explicit confidence scores and evidence rather than binary detection.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-13T00:40:16.601Z","isFirstParty":false,"canonicalSlug":"tech-detect-technology-stack-detection-via-x402-35a93e11"}