Granola MCP Server

An MCP (Model Context Protocol) server that wraps the Granola API, providing tools to search and retrieve meeting notes and documents.

Features

• Unified Search: Search meeting notes by participant, time range, or topic in a single tool
• Full Document Retrieval: Fetch complete meeting notes in Markdown format
• List Document Collections: View all document lists and their metadata

Prerequisites

• Ruby 3.0 or higher
• A Granola account with API access
• Your Granola Bearer token

Installation

1. Clone this repository:

git clone <repository-url>
cd granola-mcp

2. Install dependencies:

bundle install

Configuration

1. Copy the example environment file:

cp .env.example .env

2. Edit .env and add your Granola Bearer token:

GRANOLA_BEARER_TOKEN=your-bearer-token-here

Alternatively, you can export it as an environment variable:

export GRANOLA_BEARER_TOKEN="your-bearer-token-here"

Usage

Running the Server

ruby granola_mcp_server.rb

Or make it executable:

chmod +x granola_mcp_server.rb
./granola_mcp_server.rb

Available Tools

1. SearchMeetingNotesTool

Search for meeting notes using multiple criteria. You can search by participant, date range, topic, or any combination of these.

Parameters:

• participant (optional): Name or email of participant to search for
• start_date (optional): Start date in ISO format (YYYY-MM-DD)
• end_date (optional): End date in ISO format (YYYY-MM-DD)
• topic (optional): Topic or keywords to search for
• search_content (optional): Whether to search in document content (slower) or just titles (default: false)
• limit (optional): Maximum number of results to return (default: 20)

Note: At least one search criterion must be provided. If using date range, both start_date and end_date are required.

Example searches:

• Find all meetings with a specific person
• Find meetings within a date range
• Find meetings about a specific topic
• Combine criteria to narrow results

2. FetchMeetingNoteTool

Retrieve the full content of a specific meeting note in Markdown format.

Parameters:

• document_id (required): The ID of the document to fetch

Returns a complete Markdown representation including:

• Meeting title and date
• Participants list
• Meeting summary
• Full notes content with proper formatting

3. GetDocumentListsTool

Retrieve all document collections/lists.

No parameters required.

Returns metadata for each list including:

• List ID and title
• Document count
• Visibility settings
• Member information
• Timestamps

Response Format

All tools return responses in this format:

Search Results

{
  "success": true,
  "count": 5,
  "documents": [
    {
      "id": "document-uuid",
      "title": "Meeting Title",
      "date": "2025-01-15T10:00:00Z",
      "updated_at": "2025-01-15T11:30:00Z",
      "participants": [
        {
          "name": "John Doe",
          "email": "john@example.com",
          "role": "creator"
        }
      ],
      "preview": "Meeting notes preview..."
    }
  ]
}

Full Document

{
  "success": true,
  "document": {
    "id": "document-uuid",
    "title": "Meeting Title",
    "created_at": "2025-01-15T10:00:00Z",
    "updated_at": "2025-01-15T11:30:00Z",
    "content_markdown": "# Meeting Title\n\n**Date:** January 15, 2025...\n\n## Participants\n\n..."
  }
}

MCP Client Configuration

To use this server with an MCP client, add it to your MCP settings:

{
  "mcpServers": {
    "granola": {
      "command": "ruby",
      "args": ["/path/to/granola_mcp_server.rb"],
      "env": {
        "GRANOLA_BEARER_TOKEN": "your-bearer-token"
      }
    }
  }
}

Error Handling

The server handles common errors:

• Missing bearer token
• API request failures
• Invalid date formats
• Document not found errors
• Rate limiting

Errors are returned in this format:

{
  "success": false,
  "error": "Error message"
}

Development

Adding New Tools

To add a new tool, create a new class inheriting from FastMcp::Tool:

class MyNewTool < FastMcp::Tool
  description "Tool description"
  
  arguments do
    required(:param_name).filled(:string).description("Parameter description")
    optional(:optional_param).filled(:integer).description("Optional parameter")
  end
  
  def call(param_name:, optional_param: nil)
    # Tool implementation
  end
end

# Register it in the server setup
server.register_tool(MyNewTool)

License

MIT License