# Kusto MCP Server

An MCP (Model Context Protocol) server that provides tools for interacting with Azure Data Explorer (Kusto) clusters. Query, manage connections, and explore schemas using AI assistants like Claude and GitHub Copilot.

## Features

- Execute KQL queries and scripts
- Manage multiple cluster connections
- Explore database schemas
- Full Azure authentication support
- Works with Claude Desktop, Claude Code CLI, and VS Code with GitHub Copilot

## Prerequisites

- Node.js 18+
- .NET 8 Runtime
- Kusto CLI (`microsoft.azure.kusto.tools` NuGet package)
- Azure CLI (for authentication)

### Install Kusto CLI

```bash
dotnet tool install -g Microsoft.Azure.Kusto.Tools
```

Or via NuGet:
```bash
nuget install microsoft.azure.kusto.tools -Version 14.0.3
```

## Installation

### Via npm (recommended)

```bash
npm install -g kusto-mcp-server
```

### Via npx (no installation required)

```bash
npx kusto-mcp-server
```

## Usage with AI Assistants

### Claude Desktop

Add to your Claude Desktop configuration:
- **Windows**: `%APPDATA%\Claude\claude_desktop_config.json`
- **macOS**: `~/Library/Application Support/Claude/claude_desktop_config.json`
- **Linux**: `~/.config/claude/claude_desktop_config.json`

```json
{
  "mcpServers": {
    "kusto": {
      "command": "npx",
      "args": ["@yeshsurya/kusto-mcp-server"],
      "env": {
        "KUSTO_CLI_PATH": "~/.nuget/packages/microsoft.azure.kusto.tools/14.0.3/tools/net8.0/Kusto.Cli.dll"
      }
    }
  }
}
```

### Claude Code (CLI)

```bash
claude mcp add kusto -- npx kusto-mcp-server
```

Verify it's connected:
```bash
claude mcp list
```

### VS Code with GitHub Copilot

Add to your VS Code `settings.json`:

```json
{
  "mcp": {
    "servers": {
      "kusto": {
        "command": "npx",
        "args": ["@yeshsurya/kusto-mcp-server"],
        "env": {
          "KUSTO_CLI_PATH": "~/.nuget/packages/microsoft.azure.kusto.tools/14.0.3/tools/net8.0/Kusto.Cli.dll"
        }
      }
    }
  }
}
```

## Authentication

Before using the server, authenticate with Azure:

```bash
az login
```

## Available Tools

### Query Tools

| Tool | Description |
|------|-------------|
| `kusto_query` | Execute KQL queries (primary tool) |
| `kusto_execute` | Advanced execution with full CLI options |
| `kusto_script` | Execute script files |

### Connection Management

| Tool | Description |
|------|-------------|
| `kusto_connection_add` | Add/update a named connection |
| `kusto_connection_list` | List all configured connections |
| `kusto_connection_test` | Test connectivity |
| `kusto_connection_remove` | Remove a connection |
| `kusto_connection_set_default` | Set the default connection |

### Schema & Help

| Tool | Description |
|------|-------------|
| `kusto_schema` | Get database schema information |
| `kusto_help` | Get help and CLI options |

## Usage Examples

### Add a Connection

```
kusto_connection_add({
  name: "my-cluster",
  cluster: "https://mycluster.kusto.windows.net",
  database: "MyDatabase",
  authMethod: "azcli",
  isDefault: true
})
```

### Execute a Query

```
kusto_query({
  query: "StormEvents | summarize count() by State | top 10 by count_",
  connectionName: "my-cluster"
})
```

### Get Schema

```
kusto_schema({
  scope: "tables",
  connectionName: "my-cluster"
})
```

### Execute Multiple Commands

```
kusto_execute({
  commands: [
    ".show tables",
    "StormEvents | count"
  ],
  connectionName: "my-cluster"
})
```

## Configuration

Environment variables:

| Variable | Description | Default |
|----------|-------------|---------|
| `KUSTO_CLI_PATH` | Path to Kusto.Cli.dll | Auto-detected |
| `KUSTO_DEFAULT_TIMEOUT` | Default query timeout (ms) | 60000 |
| `KUSTO_MAX_ROWS` | Default max rows | 10000 |

## Development

```bash
# Clone the repository
git clone https://github.com/yeshsurya/kusto-mcp-server.git
cd kusto-mcp-server

# Install dependencies
npm install

# Build
npm run build

# Watch mode
npm run dev

# Run tests
npm test
```

## Publishing

```bash
# Dry run to verify package contents
npm publish --dry-run

# Publish to npm
npm publish --access public
```

## License

MIT