MCP ABAP Keyword Server

A Model Context Protocol (MCP) server for accessing ABAP Keyword Documentation from SAP's official documentation site (https://help.sap.com).

📚 Available Languages:

• English (this file)
• 日本語 (Japanese)

Features

• 🔍 Search for ABAP keywords in the official ABAP Index
• 📖 Look up terms in the ABAP Glossary
• 📚 Browse ABAP topics (Dictionary, CDS, Programming Language, RAP, etc.)
• 🗂️ Navigate the main documentation structure
• ⚡ Intelligent caching system for fast repeated queries (1-year cache TTL)
• 🚀 Up to 44x faster response times for cached content

Prerequisites

• Node.js 18.0.0 or higher
• npm 9.0.0 or higher
• TypeScript 5.3.0 or higher

Node.js Setup Guide

macOS

Option 1: Using Homebrew (Recommended)

# Install Homebrew if not already installed
/bin/bash -c "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/HEAD/install.sh)"

# Install Node.js
brew install node

# Verify installation
node --version
npm --version

Option 2: Direct Download

1. Visit https://nodejs.org/
2. Download the LTS (Long Term Support) version for macOS
3. Run the installer and follow the prompts
4. Verify installation by opening Terminal and running:

node --version
npm --version

Windows

Option 1: Using Installer (Recommended)

1. Visit https://nodejs.org/
2. Download the LTS version for Windows
3. Run the .msi installer
4. Follow the installation wizard (accept default settings)
5. Open Command Prompt and verify:

node --version
npm --version

Option 2: Using Chocolatey

# If Chocolatey is installed
choco install nodejs

# Verify installation
node --version
npm --version

Option 3: Using Windows Package Manager

winget install OpenJS.NodeJS

# Verify installation
node --version
npm --version

Installation

npm install

Build

npm run build

Development

npm run dev

Testing

Test scripts are located in the test/ directory (excluded from version control).

# Run cache performance test
node test/test-cache.js

# Run RAP behavior definition test
node test/test-rap-detailed.js

# Run basic functionality tests
node test/test.js

See test/README.md for more details.

Available Tools

1. search_abap_keyword

Search for ABAP keywords in the official ABAP Index.

Parameters:

• keyword (required): The ABAP keyword to search for (e.g., 'SELECT', 'DATA', 'CLASS')

Example:

{
  "keyword": "SELECT"
}

2. lookup_glossary

Look up a term in the ABAP Glossary to get its definition and explanation.

Parameters:

• term (required): The term to look up (e.g., 'ABAP Objects', 'CDS', 'RAP')

Example:

{
  "term": "ABAP Objects"
}

3. get_abap_topic

Get detailed information about a specific ABAP topic area.

Parameters:

• topic (required): The topic to explore. Available topics:
  • dictionary or ddic - ABAP Dictionary
  • cds - ABAP Core Data Services
  • programming or language - ABAP Programming Language
  • rap or restful - ABAP RESTful Application Programming Model
  • examples - ABAP Examples
  • news or releases - Release News

Example:

{
  "topic": "cds"
}

4. browse_main_topics

Browse all main topics in the ABAP Keyword Documentation. Returns a categorized overview of available documentation sections.

Parameters: None

Configuration

Claude Desktop / Claude Code

To use this MCP server with Claude Desktop or Claude Code, add the configuration to your Claude config file:

macOS/Linux

Edit ~/Library/Application Support/Claude/claude_desktop_config.json (Claude Desktop) or ~/.config/claude-code/config.json (Claude Code):

{
  "mcpServers": {
    "mcp-abap-keyword": {
      "command": "node",
      "args": ["/absolute/path/to/mcp-abap-keyword/build/index.js"]
    }
  }
}

Command Line Method:

# Add the MCP server using claude command
claude mcp add mcp-abap-keyword node /absolute/path/to/mcp-abap-keyword/build/index.js

Windows

Edit %APPDATA%\Claude\claude_desktop_config.json (Claude Desktop) or %APPDATA%\claude-code\config.json (Claude Code):

{
  "mcpServers": {
    "mcp-abap-keyword": {
      "command": "node",
      "args": ["C:\\absolute\\path\\to\\mcp-abap-keyword\\build\\index.js"]
    }
  }
}

Command Line Method:

# Add the MCP server using claude command
claude mcp add mcp-abap-keyword node C:\absolute\path\to\mcp-abap-keyword\build\index.js

Note: After adding the configuration, restart Claude Desktop or Claude Code for the changes to take effect.

Cline (VS Code Extension)

To use this MCP server with Cline, follow these steps:

macOS

1. Install the Cline extension in VS Code
2. Open VS Code settings (Code > Preferences > Settings or Cmd+,)
3. Search for "Cline" and find the MCP settings section
4. Add the server configuration to your settings.json:

{
  "cline.mcpServers": {
    "mcp-abap-keyword": {
      "command": "node",
      "args": ["/absolute/path/to/mcp-abap-keyword/build/index.js"]
    }
  }
}

Alternatively, edit .vscode/settings.json in your workspace:

{
  "cline.mcpServers": {
    "mcp-abap-keyword": {
      "command": "node",
      "args": ["${workspaceFolder}/../mcp-abap-keyword/build/index.js"]
    }
  }
}

Windows

1. Install the Cline extension in VS Code
2. Open VS Code settings (File > Preferences > Settings or Ctrl+,)
3. Search for "Cline" and find the MCP settings section
4. Add the server configuration to your settings.json:

{
  "cline.mcpServers": {
    "mcp-abap-keyword": {
      "command": "node",
      "args": ["C:\\absolute\\path\\to\\mcp-abap-keyword\\build\\index.js"]
    }
  }
}

Alternatively, edit .vscode\settings.json in your workspace:

{
  "cline.mcpServers": {
    "mcp-abap-keyword": {
      "command": "node",
      "args": ["${workspaceFolder}\\..\\mcp-abap-keyword\\build\\index.js"]
    }
  }
}

Make sure to replace the path with the actual absolute path to your project's build directory.

Data Source

All information is retrieved from SAP's official ABAP Keyword Documentation: https://help.sap.com/doc/abapdocu_latest_index_htm/latest/en-US/ABENABAP.html

Caching

The server implements an efficient file-based caching system to improve performance:

• Cache Location: cache/ directory (relative to the script location)
• Cache Format: Gzip-compressed HTML files (.html.gz)
• File Naming: SHA256 hashes of page URLs (12-character hex) + .html.gz extension
• Cache TTL: 365 days (1 year) - configurable
• HTML Cleaning: Automatically removes unnecessary elements before caching:
  • External scripts (<script src>)
  • Stylesheet links (<link> tags)
  • Metadata (<meta> tags)
  • Inline styles (<style> tags)
  • Noscript fallbacks (<noscript> tags)
  • HTML comments
• Compression: Uses gzip with maximum compression (level 9) for efficient storage
• Automatic Management: No manual cache management required
• Cache Invalidation: Automatic after 365 days
• Performance: Up to 44x faster response times for cached content

To clear the cache manually:

rm -rf cache

License

MIT