CyberSource Developer MCP

PyPI: https://pypi.org/project/cybersource-developer-mcp/

Let AI write CyberSource integration code directly in your application. This MCP server provides real-time SDK documentation and code generation assistance, enabling your AI assistant to help you integrate any CyberSource API using official SDKs.

What is This?

This MCP (Model Context Protocol) server connects your AI assistant to live CyberSource SDK documentation. Instead of searching docs manually, your AI can:

Write code directly for your CyberSource API Integrations
Access real-time SDK documentation, method signatures, and models
Generate working code using official CyberSource SDKs
Code Generation: Supports Java, Python, Node.js, PHP, and Ruby (other languages coming soon)
MLE Support: Helps you integrate or upgrade to Message Level Encryption (MLE) as mandated by CyberSource, with per-API MLE requirement details

Your AI assistant becomes a CyberSource integration expert that writes production-ready code in your application.

Quick Setup

1. Install the Server

Option 1: Using pipx (Recommended - Automatic Isolation)

pipx automatically creates an isolated environment and prevents dependency conflicts:

# Install pipx (one-time setup)
pip install pipx
pipx ensurepath

# Install CyberSource Developer MCP
pipx install cybersource-developer-mcp

# Verify installation
cybersource-developer-mcp --help

Why pipx?

✅ Automatic environment isolation (no manual venv management)
✅ Zero dependency conflicts with other Python packages
✅ Standard approach for MCP servers
✅ Simple one-command installation

Option 2: Using uvx (Modern Alternative)

uvx allows running the server without installation:

# Install uv (one-time setup)
pip install uv

# Run directly (no installation step needed!)
uvx cybersource-developer-mcp start

# With options
uvx cybersource-developer-mcp start --data-dir /custom/path --enable-logging

Why uvx?

✅ No installation step required
✅ Automatic isolation
✅ Very fast execution
✅ Modern tooling

Option 3: Using pip (Not Recommended Without Virtual Environment)

If you prefer pip, create a virtual environment first to avoid conflicts:

# Create and activate virtual environment
python -m venv mcp-env
source mcp-env/bin/activate  # Windows: mcp-env\Scripts\activate

# Install the package
pip install cybersource-developer-mcp

# Verify installation
cybersource-developer-mcp --help

Note: Using pip without a virtual environment may cause dependency conflicts with other packages.

2. Configure Your AI Assistant

For Cline (VS Code Extension)

Standard configuration (works with pipx or pip installation):

{
  "mcpServers": {
    "cybersource-developer-mcp": {
      "timeout": 300,
      "command": "cybersource-developer-mcp",
      "args": ["start"],
      "env": {}
    }
  }
}

💡 About the timeout: The first time you ask about a specific SDK language, the server needs to fetch and prepare the documentation, which can take a few minutes (e.g., PHP may take up to ~3 minutes). The 300-second timeout ensures this initial setup completes without interruption. After that, all responses are near-instant since everything is cached locally.

Using uvx (no installation needed):

{
  "mcpServers": {
    "cybersource-developer-mcp": {
      "timeout": 300,
      "command": "uvx",
      "args": ["cybersource-developer-mcp", "start"],
      "env": {}
    }
  }
}

With custom data directory:

{
  "mcpServers": {
    "cybersource-developer-mcp": {
      "type": "stdio",
      "command": "cybersource-developer-mcp",
      "args": ["start", "--data-dir", "/custom/path"],
      "env": {}
    }
  }
}

With logging enabled:

{
  "mcpServers": {
    "cybersource-developer-mcp": {
      "type": "stdio",
      "command": "cybersource-developer-mcp",
      "args": ["start", "--enable-logging"],
      "env": {}
    }
  }
}

For Claude Desktop

Add this to your Claude Desktop MCP configuration:

{
  "mcpServers": {
    "cybersource-developer-mcp": {
      "type": "stdio",
      "command": "cybersource-developer-mcp",
      "args": ["start"],
      "env": {}
    }
  }
}

3. Start Using It

That's it! Your AI assistant can now help you with CyberSource integrations. Just ask questions like:

"Show me how to create a payment using the CyberSource Java SDK"
"What parameters does the PaymentsApi accept?"
"Help me set up authentication for CyberSource"
"Generate a payment capture example in Python"

What Can It Do?

🔍 SDK API Documentation

Get complete documentation in SDK for any CyberSource API class with method signatures, parameters, and examples.

Example: Ask "What methods are available in PaymentsApi?"

📦 Model Details

Understand request and response models with property definitions and data types.

Example: Ask "What fields does PaymentRequest need?"

📋 API Discovery

Browse all available CyberSource APIs with endpoint mappings and descriptions.

Example: Ask "What APIs are available for payment processing?"

📖 Setup Guides

Access SDK installation, authentication, and configuration documentation.

Example: Ask "How do I set up CyberSource authentication in Java?"

🔐 MLE (Message Level Encryption) Support

Identify which APIs require or support MLE as mandated by CyberSource. Get guidance on integrating or upgrading your existing code to meet MLE requirements using the CyberSource SDK, including per-API MLE configuration details.

Example: Ask "Which APIs require MLE?" or "Help me enable MLE for the Payments API"

💻 Code Templates

Get code structure templates for common integration patterns.

Example: Ask "Show me a basic payment integration template"

Configuration Options

Custom Data Directory

By default, SDKs are downloaded to ~/.cybersource_developer_mcp/. To use a different location:

{
  "mcpServers": {
    "cybersource-developer-mcp": {
      "command": "cybersource-developer-mcp",
      "args": ["start", "--data-dir", "/your/custom/path"]
    }
  }
}

Enable Logging

To enable detailed logging for troubleshooting:

{
  "mcpServers": {
    "cybersource-developer-mcp": {
      "command": "cybersource-developer-mcp",
      "args": ["start", "--enable-logging"]
    }
  }
}

Logs will be saved to ~/.cybersource_developer_mcp/logs/mcp_server.log

GitHub Token (Optional)

For faster SDK downloads and higher API rate limits, add a GitHub token:

{
  "mcpServers": {
    "cybersource-developer-mcp": {
      "command": "cybersource-developer-mcp",
      "args": ["start"],
      "env": {
        "GITHUB_TOKEN": "your_github_token_here"
      }
    }
  }
}

How It Works

First Time: When you ask about a CyberSource API, the server automatically downloads the SDK documentation
Cached: Subsequent requests are instant - no re-downloading needed
Always Current: The server can check for and use the latest SDK versions
Multi-Language: Works with Java, Python, PHP, Node.js, and Ruby (.NET and .NET Standard coming soon)

Requirements

Python 3.10 or higher
Internet connection (for initial SDK downloads)
Windows Users: Enable long path support (see Windows Long Path Fix below)

Troubleshooting

Server Won't Start

Check Python version: python --version (must be 3.10+)
Reinstall based on your installation method:
- pipx: pipx reinstall cybersource-developer-mcp
- pip: pip install --upgrade cybersource-developer-mcp
- uvx: Just rerun uvx cybersource-developer-mcp start
Check logs: ~/.cybersource_developer_mcp/logs/mcp_server.log (if logging enabled)

AI Assistant Can't Find APIs

Ensure the server is running in your MCP configuration
Restart your AI assistant after adding the configuration
Try asking "List available CyberSource APIs for latest version"

SDK Download Issues

Check internet connection
Verify GitHub is accessible
Add a GitHub token (see Configuration Options above)
Check disk space in ~/.cybersource_developer_mcp/

Windows Long Path Errors

Windows has a 260-character path limit by default. Enable long path support:

Open Registry Editor (regedit)
Navigate to: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\FileSystem
Set LongPathsEnabled to 1
Restart your computer

Or run in an elevated PowerShell: New-ItemProperty -Path "HKLM:\SYSTEM\CurrentControlSet\Control\FileSystem" -Name "LongPathsEnabled" -Value 1 -PropertyType DWORD -Force

Corporate Network Issues

If you're behind a corporate proxy or firewall:

# Set custom CA bundle
export REQUESTS_CA_BUNDLE=/path/to/corporate/ca-bundle.crt

Then add this to your MCP configuration:

{
  "env": {
    "REQUESTS_CA_BUNDLE": "/path/to/corporate/ca-bundle.crt"
  }
}

Example Conversations

Here are some ways to use this with your AI assistant:

Basic Payment Integration

"I need to create a payment using CyberSource Java SDK. Show me how."

Understanding APIs

"What's the difference between PaymentsApi and CaptureApi?"

Model Details

"What fields are required in the PaymentRequest model?"

Authentication Setup

"How do I configure HTTP Signature authentication for CyberSource?"

Multi-Step Integration

"Help me build a complete payment flow with authorization and capture in Python."

Version-Specific Help

"Show me the PaymentsApi documentation for version 0.0.82"

MLE Integration

"Which CyberSource APIs require MLE and how do I enable it in my SDK configuration?"

MLE Upgrade

"Help me upgrade my existing payment integration to support MLE as required by CyberSource."

Data Storage

The server stores data in ~/.cybersource_developer_mcp/ by default:

~/.cybersource_developer_mcp/
├── cybs-sdk-github-code/          # Downloaded SDK documentation
├── pre-processed-json/            # Cached Details
└── logs/                          # Server logs (if enabled)

You can safely delete this directory to start fresh. The server will re-download what it needs.

Supported SDK Languages

Language	SDK Documentation	Code Generation	Latest Version Auto-Detection
Java	✅ Full Support	✅ Available	Yes
Python	✅ Full Support	✅ Available	Yes
PHP	✅ Full Support	✅ Available	Yes
Node.js	✅ Full Support	✅ Available	Yes
Ruby	✅ Full Support	✅ Available	Yes
.NET	🚧 Coming Soon	🚧 Coming Soon	Yes
.NET Standard	🚧 Coming Soon	🚧 Coming Soon	Yes

Note: SDK documentation and code generation templates are available for Java, Python, Node.js, PHP, and Ruby. Support for .NET and .NET Standard is coming soon.

Privacy & Security

No Data Sent: Your code and conversations stay between you and your AI assistant
Local Storage: All SDKs and documentation are stored locally on your machine
GitHub Access: Only downloads public CyberSource SDK repositories
Optional Token: GitHub token is only needed for higher download limits

Need Help?

Issues: Report problems on GitHub Issues
Updates: Check CHANGELOG.md for version history

Links

MCP Documentation: https://modelcontextprotocol.io
CyberSource Developer Center: https://developer.cybersource.com
GitHub Repository: https://github.com/CyberSource/cybersource-developer-mcp

Note: This MCP server provides SDK documentation and code assistance. For production implementations, always refer to official CyberSource documentation and follow security best practices.

AI-Generated Code Disclaimer

Important: This tool uses AI to assist with code generation and documentation. Please note:

No Liability: CyberSource is not liable for any code generated by AI assistants using this MCP server
Verification Required: You must thoroughly review, test, and validate all AI-generated code before use
Your Responsibility: It is your responsibility to ensure generated code meets your security, compliance, and business requirements
Testing Mandatory: All code must be tested in non-production environments before deployment to production
Security Review: Conduct proper security reviews and follow your organization's code review processes
No Warranty: The generated code is provided "as-is" without any warranties or guarantees of correctness, security, or fitness for any purpose

Best Practices:

Always review generated code line-by-line
Test thoroughly in development and staging environments
Follow your organization's security and compliance guidelines
Keep credentials and sensitive data secure (never expose API keys in code)
Consult official CyberSource documentation for authoritative guidance
Engage with CyberSource support for production-critical implementations

By using this tool, you acknowledge that you are solely responsible for any code deployed to production systems.

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CHANGELOG.md		CHANGELOG.md
LICENSE		LICENSE
README.md		README.md

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CyberSource Developer MCP

What is This?

Quick Setup

1. Install the Server

Option 1: Using pipx (Recommended - Automatic Isolation)

Option 2: Using uvx (Modern Alternative)

Option 3: Using pip (Not Recommended Without Virtual Environment)

2. Configure Your AI Assistant

For Cline (VS Code Extension)

For Claude Desktop

3. Start Using It

What Can It Do?

🔍 SDK API Documentation

📦 Model Details

📋 API Discovery

📖 Setup Guides

🔐 MLE (Message Level Encryption) Support

💻 Code Templates

Configuration Options

Custom Data Directory

Enable Logging

GitHub Token (Optional)

How It Works

Requirements

Troubleshooting

Server Won't Start

AI Assistant Can't Find APIs

SDK Download Issues

Windows Long Path Errors

Corporate Network Issues

Example Conversations

Data Storage

Supported SDK Languages

Privacy & Security

Need Help?

Links

AI-Generated Code Disclaimer

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