{"uid":"cap_Ei3qVCthmgcbrAxSMJqfX","slug":"builtwith-keywords-api-337c65ce","name":"BuiltWith Keywords API","description":"BuiltWith API Overview","url":"https://api.builtwith.com/agent/keywords","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"domain":{"type":"string","maxLength":253,"minLength":1,"description":"Domain name to research, for example example.com. Do not include a URL path."}}},"responseSchema":{"type":"json","example":{"Results":[]}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.0495","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":"$0.0495/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.0495","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.0495","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_DsEXYF0UTfUvgxE2Tb_8S","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.0495","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns keyword and tag metadata associated with technologies detected on a given domain","exampleAgentPrompt":"Can you look up what technology keywords and tags BuiltWith has on record for shopify.com?","exampleUseCases":[{"title":"Competitor tech stack research","prompt":"I want to know what technology keywords BuiltWith has associated with salesforce.com — things like CMS, frameworks, ad platforms, anything like that."},{"title":"Sales lead enrichment","prompt":"Before I reach out to this prospect, can you pull the BuiltWith keyword data for hubspot.com so I know what tech they're running?"},{"title":"E-commerce platform detection","prompt":"Can you check what technology keywords BuiltWith has for amazon.com? I'm trying to figure out what ecommerce or infrastructure tools they're flagged as using."}],"resultDescription":"A JSON object with a Results array containing keyword and tag data associated with technologies detected on the requested domain, including technology names, categories, and related metadata. Fields vary based on available data for the domain.","failureModes":["Domain not found in BuiltWith database — empty Results array returned","Invalid domain format (e.g. including URL path or protocol) — validation error","Domain string too long (>253 characters) — schema validation failure","Insufficient BuiltWith data coverage for obscure or new domains — sparse or empty results","Payment or authorization failure — request not processed"],"whenToPreferThis":"Use this endpoint when you need keyword or tag-level technology metadata for a domain from BuiltWith's database — particularly useful for sales intelligence, lead enrichment, or competitive research workflows where you want to know what technology categories or platforms a site is associated with. Prefer this over generic web scraping when you need structured, pre-classified technology signal rather than raw HTML analysis.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-14T12:30:38.924Z","isFirstParty":false}