threatlocker-mcp

# ThreatLocker MCP Server

A Model Context Protocol (MCP) server that provides AI assistants with access to the ThreatLocker Portal API. Manage computers, approval requests, audit logs, and organizations through natural language interactions.

## Features

- **Stateless Architecture**: No session state required, fresh connections per request
- **Decision-Tree Navigation**: Navigate domains with `threatlocker_navigate`
- **Gateway Mode**: Multi-tenant support via HTTP headers
- **Elicitation Support**: Interactive prompts for missing parameters
- **Comprehensive Error Handling**: Detailed error messages and logging
- **Docker Support**: Production-ready containerization

## Tools

### Navigation
- `threatlocker_navigate` - Navigate to a domain to see available tools
- `threatlocker_status` - Check API connection status and available domains

### Computers
- `threatlocker_computers_list` - List computers with filters (search, group, pagination)
- `threatlocker_computers_get` - Get detailed computer information
- `threatlocker_computers_get_checkins` - Get computer checkin history

### Computer Groups
- `threatlocker_computer_groups_list` - List computer groups with filters
- `threatlocker_computer_groups_dropdown` - Get computer groups for dropdown selection

### Approval Requests
- `threatlocker_approvals_list` - List approval requests with status filters
- `threatlocker_approvals_get` - Get detailed approval request information
- `threatlocker_approvals_pending_count` - Get count of pending approvals
- `threatlocker_approvals_get_permit_application` - Get permit application details

### Audit Log
- `threatlocker_audit_search` - Search audit log entries with filters
- `threatlocker_audit_get` - Get detailed audit log entry
- `threatlocker_audit_file_history` - Get audit history for specific file

### Organizations
- `threatlocker_organizations_list_children` - List child organizations
- `threatlocker_organizations_get_auth_key` - Get organization auth key
- `threatlocker_organizations_for_move_computers` - Get organizations for computer moves

## Configuration

### Environment Variables

#### Stdio Mode (Direct API Access)
```bash
THREATLOCKER_API_KEY=your_api_key_here
THREATLOCKER_ORGANIZATION_ID=your_org_id_here
MCP_TRANSPORT=stdio
```

#### Gateway Mode (Multi-tenant)
```bash
AUTH_MODE=gateway
MCP_TRANSPORT=http
MCP_HTTP_PORT=8080
MCP_HTTP_HOST=0.0.0.0
```

#### Gateway Mode Headers
When running in gateway mode, include these headers with each request:
- `X-Threatlocker-Api-Key`: Your ThreatLocker API key
- `X-Threatlocker-Organization-Id`: Your organization ID

### Logging
```bash
LOG_LEVEL=debug|info|warn|error  # Default: info
```

## Local Development

1. Clone the repository:
```bash
git clone https://github.com/wyre-technology/threatlocker-mcp.git
cd threatlocker-mcp
```

2. Install dependencies:
```bash
npm install
```

3. Set environment variables:
```bash
cp .env.example .env
# Edit .env with your ThreatLocker credentials
```

4. Build and run:
```bash
npm run build
npm start

# Or for development with hot reload:
npm run dev
```

5. Test the server:
```bash
# Stdio mode
echo '{"jsonrpc": "2.0", "id": 1, "method": "tools/list"}' | npm start

# HTTP mode
curl http://localhost:8080/health
```

## Docker

### Using Docker Compose

```bash
# Pull and run latest image
docker compose up -d

# Or build locally
docker compose -f docker-compose.dev.yml up --build
```

### Using Docker directly

```bash
# Gateway mode (recommended)
docker run -d \
  --name threatlocker-mcp \
  -p 8080:8080 \
  -e AUTH_MODE=gateway \
  ghcr.io/wyre-technology/threatlocker-mcp:latest

# Stdio mode
docker run -d \
  --name threatlocker-mcp \
  -e THREATLOCKER_API_KEY=your_key \
  -e THREATLOCKER_ORGANIZATION_ID=your_org_id \
  -e MCP_TRANSPORT=stdio \
  ghcr.io/wyre-technology/threatlocker-mcp:latest
```

## Architecture

### Directory Structure
```
src/
├── domains/           # Domain-specific handlers
│   ├── computers.ts
│   ├── computer_groups.ts
│   ├── approval_requests.ts
│   ├── audit_log.ts
│   ├── organizations.ts
│   ├── navigation.ts
│   └── index.ts
├── utils/             # Utilities
│   ├── client.ts      # ThreatLocker API client
│   ├── logger.ts      # Structured logging
│   ├── types.ts       # TypeScript types
│   ├── server-ref.ts  # Server reference for elicitation
│   └── elicitation.ts # Interactive prompts
├── server.ts          # MCP server creation
├── index.ts           # Stdio transport entry
└── http.ts            # HTTP transport entry
```

### Design Patterns
- **Domain Handlers**: Each API area has its own handler with `getTools()` and `handleCall()`
- **Lazy Loading**: Domain handlers are imported on-demand
- **Fresh Connections**: New server instance per HTTP request for stateless operation
- **Credential Invalidation**: Client is reset when credentials change
- **Elicitation Framework**: Interactive prompts for missing parameters

## License

Apache-2.0 - see [LICENSE](LICENSE) for details.