#grammar

A private, open-source AI-text checker, as a browser app and an MCP server, all on your own machine.

Spell and grammar checking for AI assistants via Model Context Protocol. 100% offline spell check (zero tokens, zero API calls) using nspell. BYOK grammar checking with your own Gemini, OpenAI, or Claude API key. Works with Claude Desktop, Cursor, ChatGPT, and any MCP-compatible tool. 8 languages supported.

Konnektoren MCP Server helps you learn German faster and smarter. Instantly find answers to grammar questions, discover the best exercises for your level, and create your own interactive challenges—all in one place. Whether you’re a student, teacher, or self-learner, this server gives you easy access to high-quality German learning resources and tools, right inside your favorite AI assistant. No technical setup required—just connect and start improving your German today!