Isnow890 Data4library Mcp

Connects Claude to South Korea's National Library data4library API, exposing real-time book availability across 1,000+ public libraries. You get 25 tools covering library search, book lookup by ISBN, live checkout status, trending titles, regional reading statistics, and new arrivals. The standout feature is GPS-based library search with Haversine distance calculation that sorts results by proximity. Useful when you need to check if a specific book is available at your local branch, analyze reading trends by region or age group, or build Korean library discovery tools. Requires a free API key from data4library.kr with daily limits of 500 requests or 30,000 if you register your IP. Ships via NPX or local install with full Zod validation and session analytics.