Model Context Protocol (MCP) server that lets LLMs talk to MongoDB – supports collection/schema inspection, querying, index management and CRUD over natural-language.
https://github.com/QuantGeekDev/mongo-mcpStop writing custom database integration code every time you want your LLM to work with MongoDB data. The mongo-mcp server creates a direct bridge between any MCP-compatible LLM (like Claude) and your MongoDB collections, letting you query, analyze, and manipulate data through natural language.
You know the drill: You want your LLM to analyze user behavior from your MongoDB collections, but first you need to write endpoint after endpoint, handle authentication, manage connections, and build query interfaces. By the time you're done, you've spent more time on plumbing than problem-solving.
With mongo-mcp, you add one config block to Claude Desktop and suddenly your LLM can:
No API development. No custom query builders. No connection management.
Data Exploration: Skip writing exploratory scripts. Ask your LLM "Show me the distribution of user signups by month" and get immediate insights from your actual data.
Schema Documentation: Instead of manually documenting your collections, let the LLM inspect and explain your schema structure on demand.
Quick Data Fixes: "Find and fix all orders where the shipping address is missing a postal code" becomes a single conversation, not a multi-step development task.
Index Optimization: "What indexes would improve performance for queries filtering by user location and order date?" - get recommendations based on your actual collection structure.
Debugging Production Issues: When you're investigating user reports or data inconsistencies, ask direct questions about your data instead of writing throwaway queries.
Data Migration Planning: "How many documents in the products collection use the old price structure?" Get immediate answers to plan your migration strategy.
Performance Analysis: Analyze query patterns and get index recommendations by describing what you're trying to optimize rather than manually examining explain plans.
Customer Support: "Show me all orders for user [email protected] in the last 30 days" - instant context for support conversations.
Install via Smithery (easiest):
npx -y @smithery/cli install mongo-mcp --client claude
Or add manually to your Claude Desktop config:
{
"mcpServers": {
"mongodb": {
"command": "npx",
"args": [
"mongo-mcp",
"mongodb://username:password@host:port/database?authSource=admin"
]
}
}
}
No server setup, no additional dependencies beyond Node.js 18+. The package handles the MCP protocol implementation, MongoDB connection management, and query execution.
The server connects to any MongoDB instance - local development databases, MongoDB Atlas clusters, or production deployments. It uses standard MongoDB connection strings and respects your existing authentication setup.
Include it in your development workflow for rapid data exploration, or use it for production analysis with appropriate access controls. The tool provides read and write access, so configure your MongoDB user permissions accordingly.
Built by Alex Andru (QuantGeekDev), this MIT-licensed tool has already gained traction with 153+ stars and active community contributions. Ready to stop building database bridges and start solving actual problems with your data?