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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 y
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.
Spell and grammar checking for AI assistants via Model Context Protocol (MCP).
Works with Claude Desktop, Cursor, ChatGPT, and any MCP-compatible tool.
Add to your MCP config:
{
"mcpServers": {
"lexilint": {
"command": "npx",
"args": ["-y", "lexilint-mcp"]
}
}
}
npm install -g lexilint-mcp
Once installed, your AI assistant can use these tools:
spell_check — check text for spelling errors (100% offline)grammar_check — check text for grammar issues (requires API key)"Use the spell_check tool to check this text: 'Ths is a tset'"
The spell check runs locally — no tokens consumed.
| Method | Cost per 500-word check |
|---|---|
| Ask AI directly ("fix typos in this") | ~$0.02 (GPT-4) / ~$0.015 (Claude) |
| LexiLint MCP spell_check | $0.00 |
Grammar checking uses your own API key (BYOK):
{
"mcpServers": {
"lexilint": {
"command": "npx",
"args": ["-y", "lexilint-mcp"],
"env": {
"GEMINI_API_KEY": "your-key-here"
}
}
}
}
Supported providers: GEMINI_API_KEY, OPENAI_API_KEY, ANTHROPIC_API_KEY
MIT
Добавь это в claude_desktop_config.json и перезапусти Claude Desktop.
{
"mcpServers": {
"lexilint-mcp": {
"command": "npx",
"args": []
}
}
}