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LexiLint MCP — Offline Spell Check & BYOK Grammar for AI Assistants

@raunakkathuria

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.
Overview

LexiLint MCP

Spell and grammar checking for AI assistants via Model Context Protocol.

Features

  • Offline spell check — 100% local via nspell. Zero tokens consumed. Zero API calls. Works without internet.
  • BYOK grammar check — Use your own Gemini (free tier), OpenAI, or Anthropic Claude API key. Your text goes directly to your chosen provider.
  • 8 languages — English (US/UK), Spanish, French, German, Polish, Russian, Turkish
  • Zero token cost for spell check — Stop wasting AI tokens on typo detection

Installation

{
  "mcpServers": {
    "lexilint": {
      "command": "npx",
      "args": ["-y", "lexilint-mcp"]
    }
  }
}

Server Config

{
  "mcpServers": {
    "lexilint": {
      "command": "npx",
      "args": [
        "-y",
        "lexilint-mcp"
      ]
    }
  }
}
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