Linkup JS MCP Server is a Model Context Protocol (MCP) server that exposes web search capabilities through Linkup's advanced search API. It enables AI assistants and development tools to perform intelligent web searches using natural language queries without relying on keyword optimization. The server delivers real-time information and comprehensive results, including source citations, to support accurate understanding and context. It is designed for easy integration with any MCP-compatible client and can be run directly with npx or via an environment variable for the API key. The default API base URL is https://api.linkup.so/v1, with a --base-url option to customize it. Command line options include --api-key (required unless the LINKUP_API_KEY environment variable is set) and --help. The project is deprecated in favor of a TypeScript/Node.js version that offers better performance and newer features. While the JavaScript version remains usable for quick adoption, migrating to the TypeScript variant is recommended for ongoing development. Resources include Linkup Documentation, the MCP Protocol Specification, and the Linkup API Reference.