MongoDB Database Tools

Run MongoDB Lens directly with npx to verify it connects to your MongoDB instance before adding it to your client config. Pass your connection string as the first argument.

npx -y mongodb-lens mongodb://localhost:27017

Open your Claude Desktop config file and add the mongodb-lens entry. Pass your MongoDB connection string as the argument. For authenticated connections, include credentials in the URI.

{
  "mcpServers": {
    "mongodb-lens": {
      "command": "npx",
      "args": ["-y", "mongodb-lens", "mongodb://localhost:27017"]
    }
  }
}

For MongoDB Atlas or password-protected instances, include your credentials in the connection string. Use the CONFIG_MONGO_URI environment variable as an alternative to keep credentials out of args.

{
  "mcpServers": {
    "mongodb-lens": {
      "command": "npx",
      "args": ["-y", "mongodb-lens"],
      "env": {
        "CONFIG_MONGO_URI": "mongodb+srv://username:[email protected]/mydb"
      }
    }
  }
}

Restart Claude Desktop. The 60+ MongoDB tools should appear, including find-documents, aggregate-data, create-index, and schema analysis tools. Try listing databases to confirm connectivity.

Operations like drop-database or delete-document require two-step confirmation. The server returns a 4-digit token that expires in 5 minutes — resubmit the command with the token to execute. To disable this for automation, set CONFIG_DISABLE_DESTRUCTIVE_OPERATION_TOKENS=true.