{"name":"Schema Extraction Service","version":"1.0.0","description":"Quick entity identification and structured, token-efficient data about any business, event, product, or place without scraping. Extracts validated schema.org JSON-LD from any URL using AI with 200+ specific types including Restaurant, Event, Product, LocalBusiness. Returns clean, specification-compliant JSON-LD instead of noisy markdown. Ideal for AI agents needing concise, machine-readable facts from any URL. Specialized domain expertise: Google Patents (patent metadata, citations, and inventor data), and 30+ academic publishers including PLOS, Nature, PubMed, arXiv, IEEE, and Springer (ScholarlyArticle extraction with authors, DOI, journal hierarchy, and references at zero LLM cost).","paymentPolicy":{"protocol":"x402 v2","currency":"USDC","network":"Base","refundable":false,"note":"x402 payments settle on-chain and are non-refundable. Known-difficult domains (CAPTCHA walls, auth-required sites) are automatically rejected before payment settlement to protect your funds. For unknown domains, we recommend calling GET /check?url=TARGET first for a free difficulty assessment.","preflightEndpoint":"GET /check?url=<target_url>"},"specializations":[{"domain":"patents.google.com","method":"Citation meta tag parsing","types":["CreativeWork (Patent)"],"features":["Patent number","Inventors","Assignees","Citations","PDF link","Related patents"],"llmCost":"$0"},{"domains":["journals.plos.org","pubmed.ncbi.nlm.nih.gov","nature.com","arxiv.org","ieee.org","springer.com","sciencedirect.com","wiley.com","frontiersin.org","mdpi.com","biorxiv.org","medrxiv.org","jstor.org","acm.org","sagepub.com","tandfonline.com","oup.com","cambridge.org","ssrn.com"],"method":"Citation meta tag parsing","types":["ScholarlyArticle"],"features":["Authors with affiliations","DOI","Journal/volume/issue hierarchy","PDF link","References","Keywords"],"llmCost":"$0"}],"endpoints":[{"path":"/extract","method":"GET","price":"$0.01","description":"Full AI-powered extraction of validated schema.org JSON-LD from any URL. Pass ?url=TARGET&schema_type=auto as query params. 200+ types supported. Known-difficult domains are auto-rejected before payment. Call GET /check first for unknown domains."},{"path":"/extract/lite","method":"GET","price":"$0.005","description":"Fast extraction of existing JSON-LD markup. No AI. Pass ?url=TARGET as query param. Known-difficult domains are auto-rejected before payment. Call GET /check first for unknown domains."}],"supportedTypes":["Product","Article","BlogPosting","NewsArticle","TechArticle","LocalBusiness","JobPosting","Event","Organization","Recipe","FAQPage","SoftwareApplication","VideoObject","Person","Course","Dataset","Book","Movie","HowTo","QAPage","DiscussionForumPosting","EmployerAggregateRating","Review","VacationRental","ClaimReview","ImageObject","ProfilePage","Service","BreadcrumbList","ItemList","WebPage"],"acceptedNetworks":["base"],"freeEndpoints":["/health","/test/demo","/.well-known/x402","/check"],"openapi":"/extract/openapi.json"}