{"uid":"cap_v0_N6PfmJZ8_qT_xdkgkm","slug":"tech-detect-pay-per-call-technology-stack-detection-14b98092","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/google-maps?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_ZPnnJzvzMDVKYDDZsbScA","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 URL/domain, returning confidence scores and evidence for each identified technology, billed per call in USDC over x402.","exampleAgentPrompt":"Can you detect what technologies are powering https://www.stripe.com — I want to know the frameworks, analytics tools, and CDN they're using, with confidence scores for each hit?","exampleUseCases":[{"title":"Competitor tech stack audit","prompt":"Scan shopify.com and tell me every technology you can detect — frameworks, payment tools, analytics, CDN, anything — with confidence levels for each one."},{"title":"Monitor stack changes over time","prompt":"Check https://vercel.com for its current technology stack — I last scanned it on 2024-11-01 when it was running Next.js 14.0 and Cloudflare, so flag anything that's changed since then."},{"title":"Pre-sales technology qualification","prompt":"I need to know what CMS and marketing automation tools are running on https://acmecorp.com before our sales call — can you detect their full tech stack with evidence?"}],"resultDescription":"Returns a list of detected technologies for the given URL, each with a name, category (e.g. CDN, CMS, JavaScript framework), version where detectable, confidence score, and supporting evidence. May also indicate technologies no longer present compared to a previously observed snapshot.","failureModes":["URL is unreachable or returns non-200 status — detection may fail or return empty results","Domain blocks automated scanning — may return partial or no results","Unknown or highly custom technology stacks may yield low-confidence or no matches","Malformed URL input returns validation error","x402 payment failure or insufficient USDC balance prevents call from completing"],"whenToPreferThis":"Choose this endpoint when you need per-call, no-signup technology fingerprinting of any public URL with structured confidence scores and evidence — especially useful in agentic workflows where API key management is impractical and USDC micropayments via x402 are preferred. Particularly strong when you want to diff a site's stack against a previously observed snapshot to detect changes.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-12T18:45:49.494Z","isFirstParty":false,"canonicalSlug":"tech-detect-pay-per-call-technology-stack-detection-60639ddd"}