OpenLedger MCP server

The OpenLedger MCP Server is a Model Context Protocol implementation that enables AI assistants like Claude to interact with the OpenLedger API. This server provides structured financial data context to AI models according to the MCP specification, allowing for more effective interactions with accounting and financial information.

Installation Options

Local Installation

# Clone the repository
git clone https://github.com/yourusername/Open-Ledger-MCP-Server.git
cd Open-Ledger-MCP-Server

# Install dependencies
bun install

# Set up environment variables
cp .env.example .env
# Edit .env with your configuration

# Start the server
bun start

Using Docker

# Clone the repository
git clone https://github.com/yourusername/Open-Ledger-MCP-Server.git
cd Open-Ledger-MCP-Server

# Build and run with Docker Compose
docker-compose up --build

# Or use the provided script
./docker-run.sh

Configuration and Usage

Setting Up with Claude

To use this MCP server with Claude, add it to your Claude configuration:

{
  "mcpServers": {
    "openledger": {
      "url": "http://localhost:8080/mcp"
    }
  }
}

Available Resources

The OpenLedger MCP Server provides access to these financial resources:

• openledger://transactions - Access and manage financial transactions
• openledger://companies - Access and manage company information
• openledger://categories - Access and manage transaction categories
• openledger://reports - Generate financial reports

About OpenLedger and MCP

OpenLedger API

OpenLedger is an embedded accounting API that consolidates financial data into your platform, creating a single source of truth. It can also be used to entirely manage a ledger through an API, making it perfect for AI agents.

Model Context Protocol

The Model Context Protocol (MCP) is a standard for providing context to AI models. It allows for structured data exchange between applications and AI models, enabling more effective and contextual AI interactions.

Learn more at modelcontextprotocol.io.

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 "openledger" '{"url":"http://localhost:8080/mcp"}'

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": {
        "openledger": {
            "url": "http://localhost:8080/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 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": {
        "openledger": {
            "url": "http://localhost:8080/mcp"
        }
    }
}

3. Restart Claude Desktop for the changes to take effect