{"uid":"cap_xtpjfj1ntb1la8HTdLg-y","slug":"builtwith-technology-profiler-free-tier-via-locus-x402-c5b69297","name":"BuiltWith Technology Profiler (Free Tier) via Locus x402","description":"Technology profiling for websites — detect tech stacks, find sites using specific technologies, discover domain relationships, trends, and competitive intelligence across 100M+ websites.","url":"https://builtwith.x402.paywithlocus.com/builtwith/free","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"LOOKUP":{"type":"string"}}},"responseSchema":{"type":"json","example":{"data":{},"payment":{"scheme":"exact","settledUsdc":"0.001000","authorizedMaxUsdc":"0.001000"},"request":{"id":"00000000-0000-4000-8000-000000000000","statusUrl":"/requests/00000000-0000-4000-8000-000000000000"},"success":true}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.015","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":"$0.015/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.015","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.015","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_GjCnXpzbrLHjgLjL1EM-z","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.015","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Profiles a website's technology stack using BuiltWith data, detecting frameworks, analytics tools, CDNs, CMSs, and hundreds of other technologies used by a given domain.","exampleAgentPrompt":"What tech stack is stripe.com running on? I want to know their CMS, frontend framework, analytics tools, and any other notable technologies BuiltWith can detect.","exampleUseCases":[{"title":"Competitor tech stack research","prompt":"Can you pull the full technology profile for shopify.com? I want to see what frontend framework, payment processors, analytics, and marketing tools they're using."},{"title":"Sales lead technology qualification","prompt":"Before my call with this prospect, look up what technologies hubspot.com is using — specifically whether they run any marketing automation or CRM tools I should know about."},{"title":"Due diligence on acquisition target","prompt":"Run a BuiltWith tech stack analysis on notion.so — I need to understand their infrastructure choices, what CDN and hosting they use, and any notable third-party integrations before our meeting."}],"resultDescription":"Returns a JSON object containing detected technologies for the queried domain, including categories such as CMS, frontend frameworks, analytics platforms, CDN providers, advertising tools, and other third-party integrations, drawn from BuiltWith's database of 100M+ websites. Also includes payment metadata (settled USDC amount) and a request tracking ID.","failureModes":["Unknown or uncrawled domain returns empty or sparse data object","Invalid domain format causes request failure","Domain has no detectable technologies (minimal JS/static site)","Service temporarily unavailable returns non-success response","Payment settlement failure via x402 protocol blocks the request"],"whenToPreferThis":"Use this endpoint when you need to quickly identify what technologies a specific website uses, especially for competitive intelligence, sales prospecting, or technical due diligence. Prefer this free-tier endpoint for single-domain lookups at low cost ($0.015 USDC). Choose BuiltWith over manual inspection when you need structured, categorized tech-stack data across hundreds of technology categories without crawling the site yourself.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-14T06:33:29.923Z","isFirstParty":false}