Last9 Last9 MCP Server

🚀 Last9 MCP Server

A Model Context Protocol server implemented for Last9, enabling AI agents to seamlessly bring real-time production context (logs, metrics, and traces) into the local environment for faster automated code repairs.

• Watch the demo
• Read our launch blog post

🚀 Quick Start

The Last9 MCP Server is compatible with the Claude desktop application and can also be used with Cursor and Windsurf.

✨ Features

Compatibility

Compatible with the Claude desktop application, and can also be used with Cursor and Windsurf.

📦 Installation

Install using Homebrew

brew install last9/mcp/last9-mcp

💻 Usage Examples

Using the Last9 MCP Server

Command

last9-mcp

Environment Variables

• LAST9_AUTH_TOKEN: Obtain it from the OTLP integration page.
• LAST9_BASE_URL: The OTLP listening address, e.g., http://localhost:1234 (by default).
• LAST9_REFRESH_TOKEN: Obtain a refresh token with write permissions from the API access page.

Example

last9-mcp --auth_token=your_auth_token --base_url=http://localhost:1234 --refresh_token=your_refresh_token

Configuration for the Claude Desktop Application

1. Open the Claude desktop application.
2. Go to Settings, then Developer Options.
3. Click Edit Configuration File.
4. Open the claude_desktop_config.json file.
5. Paste the following content into the existing file and save:

{
  "mcpServers": {
    "last9": {
      "command": "/opt/homebrew/bin/last9-mcp",
      "env": {
        "LAST9_AUTH_TOKEN": "<your_auth_token>",
        "LAST9_BASE_URL": "<last9_otlp_host>",
        "LAST9_REFRESH_TOKEN": "<refresh_token_from_last9_dashboard>"
      }
    }
  }
}

6. Restart the Claude application.

Configuration for Cursor

1. In Cursor, go to Settings.
2. Click "MCP" on the left.
3. Click "Add New Global MCP Server" in the top right corner.
4. Paste the following content into the existing file and save:

{
  "mcpServers": {
    "last9": {
      "command": "/opt/homebrew/bin/last9-mcp",
      "env": {
        "LAST9_AUTH_TOKEN": "<auth_token>",
        "LAST9_BASE_URL": "<last9_otlp_host>",
        "LAST9_REFRESH_TOKEN": "<write_refresh_token>"
      }
    }
  }
}

5. Restart Cursor.

Configuration for Windsurf

1. Open the Windsurf application.
2. Go to Settings, then Developer Options.
3. Click Edit Configuration File.
4. Open the windsurf_config.json file.
5. Paste the following content into the existing file and save:

{
  "mcpServers": {
    "last9": {
      "command": "/opt/homebrew/bin/last9-mcp",
      "env": {
        "LAST9_AUTH_TOKEN": "<auth_token>",
        "LAST9_BASE_URL": "<last9_otlp_host>",
        "LAST9_REFRESH_TOKEN": "<refresh_token>"
      }
    }
  }
}

6. Restart Windsurf.

⚠️ Important Note

• All <...> sections need to be replaced with actual values.
• Ensure that the environment variables are correctly configured after installation and verify that the MCP server is running properly.