Markdown to Notion MCP Server

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An MCP server that converts .md file content and outputs it to Notion.

Features

• Convert Markdown file content to Notion page format and output
• Verify Notion API connection
• Display current server configuration

Installation

# Clone the repository
git clone https://github.com/camoneart/markdown-to-notion
cd markdown-to-notion

# Install dependencies
pnpm install

# Build TypeScript
pnpm run build

# Register as global command
pnpm link --global

Configuration

1. Copy .env.example to create .env file
2. Configure Notion API token

cp .env.example .env

Edit the .env file:

NOTION_API_TOKEN=your_notion_api_token_here

# Optional: Default Notion page ID (enables page ID omission when set)
DEFAULT_NOTION_PAGE_ID=your_default_page_id_here

How to get Notion API Token

1. Go to Notion Developers
2. Click "New integration"
3. Enter integration name (e.g., "Markdown MCP Server")
4. Select workspace
5. Click "Submit"
6. Copy the displayed token

Usage

1. Run as MCP Server

# Development mode
pnpm run dev

# Production mode (after build)
pnpm start

2. Use from MCP clients like Claude Code

Add the following to your MCP client configuration file (.mcp.json):

{
  "mcpServers": {
    "markdown-to-notion": {
      "type": "stdio",
      "command": "md-to-notion",
      "args": [],
      "env": {
        "NOTION_API_TOKEN": "your_notion_api_token_here",
        "DEFAULT_NOTION_PAGE_ID": "your_default_page_id_here"
      }
    }
  }
}

Note: To use the above configuration, you need to register it as a global command with pnpm link --global beforehand.

Available Tools

md-to-notion

Add Markdown file content to Notion page

Parameters:

• markdownFilePath: Path to the markdown file
• notionPageId: Notion page ID to append content to (optional)

Usage Examples:

# With page ID specified
markdownFilePath: ./example.md
notionPageId: 1234567890abcdef1234567890abcdef

# Using default page ID (simple!)
markdownFilePath: ./example.md
※ DEFAULT_NOTION_PAGE_ID is used when notionPageId is omitted

verify-notion-connection

Verify Notion API connection

Parameters: None

Available Resources

config-info

Display current server configuration

URI: config://current

Development

# Run tests
pnpm test

# Run linter
pnpm run lint

# Type check
pnpm run typecheck

Troubleshooting

Common Errors

1. "NOTION_API_TOKEN environment variable is required"

   • Notion API token is not set in .env file

2. "Markdown file not found"

   • The specified Markdown file path is incorrect

3. "Failed to retrieve Notion page"

   • Notion page ID is incorrect or integration doesn't have access permission to the page

Permission Setup

To add content to a Notion page, you need to connect the created integration to the page:

1. Open the target Notion page
2. Click the "⋯" (three dots menu) in the top right
3. Select "Connections" from the menu
4. Enter the integration name in the search box
5. Select the displayed integration
6. Click "Confirm" on the permission confirmation screen

License

Licensed under the MIT License.