Paper Invest MCP server

The Paper MCP Server implements the Model Context Protocol (MCP) for Paper's trading platform, allowing AI assistants like Claude to interact with Paper's API using natural language commands. This server enables seamless integration between Claude Desktop and Paper's trading capabilities.

Installation and Configuration

The server is automatically installed when you configure Claude Desktop. To set it up, you need to modify the Claude Desktop configuration file:

macOS: ~/Library/Application Support/Claude/claude_desktop_config.json
Windows: %APPDATA%\Claude\claude_desktop_config.json

Add the following to your configuration file:

{
  "mcpServers": {
    "paper-invest": {
      "command": "npx",
      "args": ["@paperinvest/mcp-server"],
      "env": {
        "PAPER_INVEST_API_KEY": "your-api-key-here"
      }
    }
  }
}

Setting Up Your Account

Follow these steps to get started:

1. Sign up for an account at app.paperinvest.io
2. Generate an API key from your account settings
3. Add the configuration above with your personal API key
4. Restart Claude Desktop

Available Trading Tools

The MCP server provides access to several trading functionalities:

• Account Management: Create and manage trading accounts
• Portfolio Operations: View and manage portfolios
• Trading: Place, modify, and cancel orders
• Market Data: Get real-time quotes and market information
• Positions: View current holdings and P&L
• Activity Tracking: Monitor trading activity and day trades

Using the Server

Once configured, you can interact with Paper's trading platform by asking Claude natural language questions or giving commands such as:

• "Show me my current positions"
• "Get a quote for AAPL"
• "Place a market order for 100 shares of TSLA"
• "What's my portfolio value?"
• "Cancel all my open orders"

Additional Resources

For complete documentation, visit docs.paperinvest.io

For support, visit paperinvest.io or email [email protected]

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 "paper-invest" '{"command":"npx","args":["@paperinvest/mcp-server"],"env":{"PAPER_INVEST_API_KEY":"your-api-key-here"}}'

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": {
        "paper-invest": {
            "command": "npx",
            "args": [
                "@paperinvest/mcp-server"
            ],
            "env": {
                "PAPER_INVEST_API_KEY": "your-api-key-here"
            }
        }
    }
}

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": {
        "paper-invest": {
            "command": "npx",
            "args": [
                "@paperinvest/mcp-server"
            ],
            "env": {
                "PAPER_INVEST_API_KEY": "your-api-key-here"
            }
        }
    }
}

3. Restart Claude Desktop for the changes to take effect