SystemPrompt MCP server

This server implements the Model Context Protocol (MCP) for creating and managing AI agents through an advanced prompt and tool management system. It integrates with systemprompt.io to provide seamless management and versioning of system prompts, requiring an API key that's currently available for free.

Getting Started

Prerequisites

• An API key from systemprompt.io/console
• Multimodal MCP Client for the frontend interface

Installation

Option 1: Install via Smithery (Recommended)

The easiest way to install the SystemPrompt Agent Server for Claude Desktop is through Smithery:

npx -y @smithery/cli install systemprompt-agent-server --client claude

Option 2: Manual Installation

To manually configure with Claude Desktop:

1. Locate your Claude configuration file:

   • MacOS: ~/Library/Application Support/Claude/claude_desktop_config.json
   • Windows: %APPDATA%/Claude/claude_desktop_config.json

2. Add the server configuration:

{
  "mcpServers": {
    "systemprompt-agent-server": {
      "command": "/path/to/systemprompt-agent-server/build/index.js"
    }
  }
}

Key Features

Agent Management

• Create and configure AI agents with specific capabilities
• Define agent behaviors through system prompts
• Version control for agent configurations

Built-in Tools

The server includes several powerful tools:

• Prompt Management Tools

  • Create, edit, and retrieve system prompts with metadata

• Resource Management Tools

  • Create, edit, list, and read agent resources

• System Tools

  • Monitor system status and retrieve resources

• Agent Management Tools

  • Create, edit, and list systemprompt agents

Using the Server

The server works seamlessly with MCP-compatible clients, particularly the recommended multimodal-mcp-client.

Advanced Capabilities

• Voice Control: Works with voice commands through the multimodal client
• Real-Time Processing: Supports streaming responses for interactive experiences
• Sampling & Notifications: Includes advanced sampling for AI responses and real-time notifications

Debugging

Since MCP servers communicate over stdio, debugging can be challenging. Use the MCP Inspector:

npm run inspector

This will provide a URL to access debugging tools in your browser.

Demo

For a visual demonstration of the server's capabilities:

Watch Demo Video

The demo shows:

• Voice-controlled AI interactions
• Multimodal input processing
• Tool execution and workflow automation
• Real-time voice synthesis

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 "systemprompt-agent-server" '{"command":"npx","args":["-y","systemprompt-mcp-core"]}'

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": {
        "systemprompt-agent-server": {
            "command": "npx",
            "args": [
                "-y",
                "systemprompt-mcp-core"
            ]
        }
    }
}

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": {
        "systemprompt-agent-server": {
            "command": "npx",
            "args": [
                "-y",
                "systemprompt-mcp-core"
            ]
        }
    }
}

3. Restart Claude Desktop for the changes to take effect