Think Tool MCP server

MCP-Think is a Model Context Protocol (MCP) server that implements a "Think Tool" for Large Language Models. This tool enables LLMs to record their thoughts during reasoning processes, retrieve previous thinking steps, and manage their reasoning workflow - essentially providing a structured scratchpad for more transparent and traceable AI reasoning.

Installation Options

Quick Installation (Linux/macOS)

The easiest way to install MCP-Think is using the provided installation script:

curl -fsSL https://raw.githubusercontent.com/iamwavecut/MCP-Think/main/install.sh | bash

Installing via Smithery

For Claude Desktop users, you can install MCP-Think automatically via Smithery:

npx -y @smithery/cli install @iamwavecut/mcp-think --client claude

Using Pre-built Binaries

1. Go to the Releases page
2. Download the appropriate binary for your system
3. For Linux/macOS, make it executable: chmod +x think-tool
4. Run it: ./think-tool

Using Go Install (Requires Go)

If you have Go installed:

go install github.com/iamwavecut/MCP-Think@latest

Note: Make sure your Go bin directory is in your system's PATH.

Usage Instructions

Running the Server

After installation, you can run the MCP-Think server:

# If using pre-built binary in current directory:
./think-tool

# If installed via 'go install' or the install script:
think-tool

The server will display Starting Think Tool MCP Server with stdio transport... and wait for MCP requests.

Setting up in Cursor

To use MCP-Think with Cursor:

1. Install MCP-Think using one of the methods above
2. Create or update your Cursor MCP configuration file at ~/.cursor/mcp.json:

{
  "mcpServers": {
    "think-tool": {
      "command": "think-tool", // or absolute path, e.g.: /opt/bin/think-tool
      "transport": "stdio"
    }
  }
}

3. Add the appropriate rules to your Cursor settings under Rules > User rules to enable the think tool functionality

Available Features

MCP-Think provides these main capabilities:

• Think Tool: Record thoughts and reasoning steps
• Get Thoughts: Retrieve all previously recorded thoughts
• Clear Thoughts: Clear all recorded thoughts
• Get Thought Stats: Get statistics about recorded thoughts

Once configured, models like Claude 3.7 Sonnet can use the Think Tool in Cursor conversations to work through complex reasoning tasks with improved transparency and traceability.

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 "think-tool" '{"command":"think-tool","transport":"stdio"}'

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": {
        "think-tool": {
            "command": "think-tool",
            "transport": "stdio"
        }
    }
}

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": {
        "think-tool": {
            "command": "think-tool",
            "transport": "stdio"
        }
    }
}

3. Restart Claude Desktop for the changes to take effect