Offline spell check and BYOK grammar checking for AI assistants. 100% offline spell check via nspell (zero tokens, zero API calls). 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.
Provides automated grammar checking by intercepting user input and returning correction instructions for MCP-compatible clients like Claude Desktop and Claude Code.
Provides Ukrainian language grammar checking, surzhyk detection, authentic phrasing, and English-to-Ukrainian rendering through curated linguistic data.