MCP Server Doc

A Model Context Protocol server for searching and accessing Lark documents.

Features

Document Content Access

• Supports both Lark Doc and Wiki document types
• Automatically handles document type detection and ID extraction
• Returns raw content in text format for LLM processing

Authentication

• OAuth-based user authentication
• Automatic token refresh and expiration management
• Customizable OAuth callback server

Error Handling

• Comprehensive error reporting for authentication issues
• Clear feedback for invalid document URLs
• Detailed error messages for troubleshooting

Installation

uvx mcp-server-doc

Configuration

Get your Lark App ID and App Secret

Visit the Lark Open Platform: https://open.larkoffice.com/app

Make Sure your Lark App has Permissions below

wiki:wiki:readonly
wiki:node:read
docx:document:readonly
search:docs:read

Environment Variables

Before using this MCP server, you need to set up your Lark application credentials:

1. Create a Lark application in Lark Open Platform
2. Get your App ID and App Secret
3. Configure environment variables:

export LARK_APP_ID="your_app_id"
export LARK_APP_SECRET="your_app_secret"

Usage

Configure in Claude desktop:

"mcpServers": {
    "lark_doc": {
        "command": "uvx",
        "args": ["mcp-server-doc"],
        "env": {
            "LARK_APP_ID": "your app id",
            "LARK_APP_SECRET": "your app secret",
        }
    }
}

Available Tools

1. get_lark_doc_content
   • Purpose: Retrieve document content from Lark
   • Args: documentUrl (string) - The URL of the Lark document
   • Returns: Document content in text format
   • Supports:
     • Doc URLs: https://xxx.larksuite.com/docx/xxxxx
     • Wiki URLs: https://xxx.larksuite.com/wiki/xxxxx

Error Messages

Common error messages and their solutions:

• "Lark client not properly initialized": Check your LARK_APP_ID and LARK_APP_SECRET
• "Invalid Lark document URL format": Verify the document URL format
• "Failed to get document content": Check document permissions and token validity
• "Failed to get app access token": Check your application credentials and network connection
• "Failed to get wiki document real ID": Check if the wiki document exists and you have proper permissions
• "Document content is empty": The document might be empty or you might not have access to its content
• "Authorization timeout": ser didn't complete authorization within 5 minutes

License

MIT License