{"uid":"cap_LAv51_LwNGsRAxV5TDpwk","slug":"tech-detect-pay-per-call-technology-stack-detection-246928fd","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/algolia?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_70ZisxE8jpMxmKY7BQT3x","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 full technology stack of a given domain URL, returning confidence scores and evidence for each identified technology, billed per call in USDC via x402.","exampleAgentPrompt":"Scan stripe.com and tell me its full technology stack — frameworks, CDN, analytics, everything — with confidence scores and evidence for each hit.","exampleUseCases":[{"title":"Competitor tech stack analysis","prompt":"What technologies is shopify.com running right now? I want to know their frontend framework, hosting, CDN, and any analytics or A/B testing tools, with confidence levels for each."},{"title":"Monitor stack changes over time","prompt":"Check the current tech stack for notion.so and compare it against what I saw last month — observed_at 2025-04-15 — when they were running React, Cloudflare, and Segment. Flag anything that's changed."},{"title":"Sales prospecting tech qualification","prompt":"Scan hubspot.com and tell me everything you can detect about their technology stack — I need to know which marketing automation, CRM, and analytics tools they use so I can tailor my outreach."}],"resultDescription":"Returns a structured list of detected technologies for the target domain, each with a name, category (e.g. CDN, framework, CMS, analytics), version if detectable, confidence score, and supporting evidence. Optionally compares against a previously observed snapshot to highlight changes.","failureModes":["Invalid or unreachable URL returns an error with no technology results","Domain with aggressive bot protection may yield incomplete or empty detection results","Payment failure via x402 results in HTTP 402 and no response body","Malformed previous snapshot object causes validation error","Very new or obscure domains may return low-confidence or sparse results"],"whenToPreferThis":"Choose this endpoint when you need real-time, evidence-backed technology fingerprinting for any public domain without managing API keys or subscriptions. It is ideal for one-off lookups, agent-driven competitive research, or change-detection workflows where paying per call is more cost-effective than a monthly plan. The optional previous-snapshot parameter makes it especially suited for monitoring technology drift over time.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-13T00:41:15.652Z","isFirstParty":false,"canonicalSlug":"tech-detect-pay-per-call-technology-stack-detection-60639ddd"}