Milvus MCP server

MCP Milvus is a server implementation of the Model Context Protocol that provides comprehensive vector database operations for Milvus. It enables full lifecycle management of databases, collections, and indexes with high-performance vector search capabilities and intelligent session management.

Installation

Prerequisites

• Go 1.24 or higher
• Running Milvus instance

Install from Source

git clone https://github.com/tailabs/mcp-milvus.git
cd mcp-milvus
make deps
make build

Or using Go directly:

git clone https://github.com/tailabs/mcp-milvus.git
cd mcp-milvus
go mod download
go build -o mcp-milvus ./cmd/mcp-milvus

Docker Deployment

# Build image
docker build -t mcp-milvus .

# Run container
docker run -p 8080:8080 mcp-milvus

Usage

Starting the Server

# Using Makefile
make run

# Or directly
./build/mcp-milvus

Connecting to Milvus

Use the milvus_connector tool to establish a connection:

{
  "address": "localhost:19530",
  "token": "username:password",
  "db_name": "default"
}

Configuration Options

Environment Variables

• LOG_LEVEL: Log level (debug/info/warn/error), default: info
• PORT: Service port, default: 8080

Connection Configuration

Supports the following connection parameters:

• address: Milvus service address
• token: Authentication token (format: username:password)
• db_name: Database name

Supported Operations

Database Management

• milvus_create_database - Create database
• milvus_list_databases - List all databases
• milvus_use_database - Switch database

Collection Management

• milvus_create_collection - Create collection
• milvus_drop_collection - Drop collection
• milvus_list_collections - List collections
• milvus_get_collection_info - Get collection information
• milvus_rename_collection - Rename collection
• milvus_load_collection - Load collection into memory
• milvus_release_collection - Release collection from memory

Index Management

• milvus_create_index - Create index
• milvus_drop_index - Drop index

Data Operations

• milvus_insert_data - Insert data
• milvus_upsert - Insert or update data
• milvus_delete_entities - Delete entities
• milvus_query - Conditional query
• milvus_vector_search - Vector similarity search

Related Resources

• Milvus Official Website
• Model Context Protocol
• MCP Go SDK

How to install this MCP server

For Claude Code

To add this MCP server to Claude Code, run this command in your terminal:

claude mcp add-json "milvus" '{"command":"mcp-milvus","args":[]}'

See the official Claude Code MCP documentation for more details.

For Cursor

There are two ways to add an MCP server to Cursor. The most common way is to add the server globally in the ~/.cursor/mcp.json file so that it is available in all of your projects.

If you only need the server in a single project, you can add it to the project instead by creating or adding it to the .cursor/mcp.json file.

Adding an MCP server to Cursor globally

To add a global MCP server go to Cursor Settings > Tools & Integrations and click "New MCP Server".

When you click that button the ~/.cursor/mcp.json file will be opened and you can add your server like this:

{
    "mcpServers": {
        "milvus": {
            "command": "mcp-milvus",
            "args": []
        }
    }
}

Adding an MCP server to a project

To add an MCP server to a project you can create a new .cursor/mcp.json file or add it to the existing one. This will look exactly the same as the global MCP server example above.

How to use the MCP server

Once the server is installed, you might need to head back to Settings > MCP and click the refresh button.

The Cursor agent will then be able to see the available tools the added MCP server has available and will call them when it needs to.

You can also explicitly ask the agent to use the tool by mentioning the tool name and describing what the function does.

For Claude Desktop

To add this MCP server to Claude Desktop:

1. Find your configuration file:

• macOS: ~/Library/Application Support/Claude/claude_desktop_config.json
• Windows: %APPDATA%\Claude\claude_desktop_config.json
• Linux: ~/.config/Claude/claude_desktop_config.json

2. Add this to your configuration file:

{
    "mcpServers": {
        "milvus": {
            "command": "mcp-milvus",
            "args": []
        }
    }
}

3. Restart Claude Desktop for the changes to take effect