Wazuh OpenSearch Analytics MCP server

This MCP server provides a straightforward way to query and analyze Wazuh security logs stored in OpenSearch, offering tools for searching alerts, retrieving details, generating statistics, and visualizing trends.

Prerequisites

• Node.js v16 or higher
• Access to an OpenSearch instance containing Wazuh security logs

Installation

Run Directly with npx (Recommended)

You can run this tool directly using npx without cloning the repository:

# Run the latest version from GitHub
npx github:jetbalsa/mcp-opensearch-js

# Run with debug mode enabled
npx github:jetbalsa/mcp-opensearch-js --debug

# You can also specify a specific branch or commit
npx github:jetbalsa/mcp-opensearch-js#main

Local Installation

1. Clone the repository:

git clone https://github.com/jetbalsa/mcp-opensearch-js.git
cd mcp-opensearch-js

2. Install dependencies:

npm install

3. Configure your environment variables:

cp .env.example .env

4. Edit the .env file with your OpenSearch connection details:

OPENSEARCH_URL=https://your-opensearch-endpoint:9200
OPENSEARCH_USERNAME=your-username
OPENSEARCH_PASSWORD=your-password
DEBUG=false

Running the Server

Start the Server

To start the server in stdio mode:

npm start

Enable Debug Logging

For detailed debugging information:

npm run stdio:debug

Test with MCP CLI

For interactive testing with the FastMCP CLI tool:

npm run dev

Test with MCP Inspector

For visual debugging with the MCP Inspector:

npm run inspect

Available Tools

The server provides several tools for working with Wazuh security logs:

Search Alerts

Search for security alerts in Wazuh data.

Parameters:

• query: The search query text
• timeRange: Time range (e.g., 1h, 24h, 7d)
• maxResults: Maximum number of results to return
• index: Index pattern to search

Get Alert Details

Get detailed information about a specific alert by ID.

Parameters:

• id: The alert ID
• index: Index pattern

Alert Statistics

Get statistics about security alerts.

Parameters:

• timeRange: Time range (e.g., 1h, 24h, 7d)
• field: Field to aggregate by (e.g., rule.level, agent.name)
• index: Index pattern

Visualize Alert Trend

Visualize alert trends over time.

Parameters:

• timeRange: Time range (e.g., 1h, 24h, 7d)
• interval: Time interval for grouping (e.g., 1h, 1d)
• query: Query to filter alerts
• index: Index pattern

Example Usage

Using the MCP CLI Tool

> tools
Available tools:
- searchAlerts: Search for security alerts in Wazuh data
- getAlertDetails: Get detailed information about a specific alert by ID
- alertStatistics: Get statistics about security alerts
- visualizeAlertTrend: Visualize alert trends over time

> tools.searchAlerts(query: "rule.level:>10", timeRange: "12h", maxResults: 5)

Using with a Client Implementation

import { Client } from "@modelcontextprotocol/sdk";
import { SSEClientTransport } from "@modelcontextprotocol/sdk/client/sse.js";

const client = new Client(
  {
    name: "example-client",
    version: "1.0.0",
  },
  {
    capabilities: {},
  },
);

const transport = new SSEClientTransport(new URL(`http://localhost:3000/sse`));

await client.connect(transport);

// Use tools
const result = await client.executeTool("searchAlerts", {
  query: "rule.level:>10",
  timeRange: "24h",
  maxResults: 10
});

console.log(result);

How to add this MCP server to 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 > MCP and click "Add new global MCP server".

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

{
    "mcpServers": {
        "cursor-rules-mcp": {
            "command": "npx",
            "args": [
                "-y",
                "cursor-rules-mcp"
            ]
        }
    }
}

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 explictly ask the agent to use the tool by mentioning the tool name and describing what the function does.