{"uid":"cap_X6TZabJZ9k1Tdei8aWS0-","slug":"toolsmith-web-tech-stack-fingerprinter-f2dbd144","name":"Toolsmith Web Tech Stack Fingerprinter","description":"Detect the technologies a website runs: CMS (WordPress, Shopify, Webflow...), JS framework (Next.js, React, Vue, Angular...), analytics and marketing tools, payments, CDN, hosting, server, language, UI libraries and fonts. Plus server header, generator meta and security-header posture. Pass url= or domain=. Signature-based from the live homepage. JSON response. $0.01 USDC per call, pay via x402, no API key.","url":"https://toolcall.click/t/web/techstack","method":"GET","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method"],"properties":{"type":{"type":"string","const":"http"},"method":{"enum":["GET"],"type":"string"},"queryParams":{"type":"object","required":["url"],"properties":{"url":{"type":"string","description":"URL or domain to fingerprint"}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":{"type":"json","example":{"domain":"stripe.com","server":"nginx","technologies":{"cdn":["Cloudflare"],"payments":["Stripe"],"analytics":["Google Analytics"],"framework":["React"]},"technologyCount":4}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.01","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":"$0.01/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_UGkLKl-f15ueadJ93_WR9","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.01","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Identifies technologies, frameworks, CDNs, and analytics tools used by a website or domain","exampleAgentPrompt":"Can you fingerprint the tech stack for stripe.com and tell me what CDN, frontend framework, analytics tools, and server software they're running?","exampleUseCases":[{"title":"Competitor tech stack research","prompt":"I'm doing competitive research — can you check what technologies Shopify uses on their website? I want to know their CDN, frontend framework, and any analytics tools."},{"title":"Security audit pre-check","prompt":"Before I start a security assessment, fingerprint the tech stack on example-client.com so I know what server software and CDN they're running."},{"title":"Sales lead enrichment","prompt":"I have a prospect at acmecorp.com — can you detect what payment processor and CMS they're using on their site so I can tailor my pitch?"}],"resultDescription":"Returns a JSON object containing the domain, server software, a categorized technology breakdown (CDN, payments, analytics, framework, etc.), and a total technology count — e.g. {domain: 'stripe.com', server: 'nginx', technologies: {cdn: ['Cloudflare'], payments: ['Stripe'], analytics: ['Google Analytics'], framework: ['React']}, technologyCount: 4}.","failureModes":["Invalid or unreachable URL returns an error or empty technology list","Private/intranet domains not accessible from the internet will return no data","Some obfuscated sites may return partial or empty technology fingerprints","Payment failure (insufficient USDC balance) results in 402 response blocking the call","Heavily obfuscated or server-side-only apps may yield low technology counts"],"whenToPreferThis":"Choose this endpoint when you need a quick, keyless, pay-per-call tech stack fingerprint for any public domain or URL — particularly useful for competitive intelligence, sales enrichment, security pre-assessment, or market research workflows where you don't want to manage API keys or subscriptions. Prefer it over browser-based tools like BuiltWith or Wappalyzer when operating in an automated agent pipeline that supports x402 micropayments.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-13T18:43:05.269Z","isFirstParty":false}