JSON MCP Filter is a powerful MCP server that provides JSON schema generation and filtering tools for local files and remote HTTP/HTTPS endpoints. Built with quicktype for robust TypeScript type generation, it converts JSON into TypeScript interfaces and enables shape-based extraction of relevant fields. It supports remote sources and large datasets through automatic 400KB chunking, while enforcing a 50MB size limit with memory safety. The server offers three tools: json_schema to generate TypeScript types from JSON, json_filter to extract nested fields according to a shape object (with support for arrays and nested objects), and json_dry_run to analyze data size and propose chunking strategies before filtering. It includes clear, actionable error messages with debugging information and smart error reporting for common issues. Designed to integrate with Claude Desktop and Claude Code MCP workflows, this server emphasizes speed, safety, and typed data for GPT-based context extraction.