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mcp-mongo-server
A Model Context Protocol Server for MongoDB
Links
README
From the repo.
MCP MongoDB Server
A Model Context Protocol server that enables LLMs to interact with MongoDB databases. This server provides capabilities for inspecting collection schemas and executing MongoDB operations through a standardized interface.
Demo
Key Features
- Smart ObjectId Handling - Configurable auto/none/force modes for string-to-ObjectId conversion
- Read-Only Mode - Protection against write operations, uses secondary read preference
- Schema Inference - Automatic collection schema detection from document samples
- Query & Aggregation - Full MongoDB query and aggregation pipeline support with optional explain plans
- Write Operations - Insert, update, and index creation (when not in read-only mode)
- Collection Completions - Auto-complete collection names for LLM integration
Installation
npx -y mcp-mongo-server mongodb://localhost:27017/database
Usage
# Start server with MongoDB URI
npx -y mcp-mongo-server mongodb://muhammed:kilic@localhost:27017/database
# Connect in read-only mode
npx -y mcp-mongo-server mongodb://muhammed:kilic@localhost:27017/database --read-only
Environment Variables
| Variable | Description |
|---|---|
MCP_MONGODB_URI | MongoDB connection URI |
MCP_MONGODB_READONLY | Enable read-only mode ("true") |
Documentation
- Integration Guide - Claude Desktop, Windsurf, Cursor, Docker
- Available Tools - Query, aggregate, update, insert, and more
- Development - Setup, scripts, and debugging
- Contributing
License
MIT - see LICENSE for details.
Collected info
- ★ 279 stars
- ⎇ 55 forks
- Language: TypeScript
- Source updated: 6/13/2026
Config for your environment
Replace {MCP_ENDPOINT_URL} with this MCP’s endpoint URL (from its repo or docs above). No API key — you connect directly.
Tool
OS
Config file: ~/.cursor/mcp.json
{
"mcpServers": {
"mcp-server": {
"url": "{MCP_ENDPOINT_URL}"
}
}
}Paste into mcpServers in the config file. Restart Cursor after saving.
If this MCP is also published on mcpchannel.ai, you can subscribe from Browse and use the gateway config there instead.