FraudLabs Pro MCP Server

An MCP-compliant server that integrates the FraudLabs Pro fraud detection system into AI assistants like Claude Desktop. This server enables real-time screening of order transactions and user-related events (like logins or registrations) to identify and prevent fraudulent activities.

Features

• Order Screening: Validate e-commerce orders using IP addresses, billing/shipping details, and credit card information.

• User Screening: Analyze account-level events (registrations/logins) for suspicious patterns.

• Transaction Management: Retrieve historical results for orders or user screenings.

• Feedback Loop: Approve, Reject, or Blacklist transactions directly through the AI interface to improve the detection engine.

Prerequisites

• Python 3.10+ installed.
• FraudLabs Pro API Key: You can obtain a free or paid API key at FraudLabs Pro.

Installation

1. Install Dependencies Ensure you have the required libraries installed in your environment:

pip install mcp httpx

2. Configuration To use this server with an MCP client (such as Claude Desktop), add the following entry to your configuration file:

• macOS: ~/Library/Application Support/Claude/claude_desktop_config.json
• Windows: %APPDATA%\Claude\claude_desktop_config.json

{
  "mcpServers": {
    "fraudlabspro": {
      "command": "python3",
      "args": ["/absolute/path/to/the/src/server.py"],
      "env": {
        "FRAUDLABSPRO_API_KEY": "YOUR_API_KEY_HERE"
      }
    }
  }
}

Available Tools

📦 Order Management

Tool	Description	Key Arguments
screen_order	Screen an order for fraud.	ip, email, amount, bin_no, bill_country, ship_country
get_order_result	Retrieve the validation result for a previous order.	transaction_id
feedback_order	Update order status (APPROVE, REJECT, BLACKLIST).	transaction_id, action, note

👤 User Management

Tool	Description	Key Arguments
screen_user	Screen user events like logins or signups.	email, ip, phone, first_name, last_name
get_user_result	Retrieve results for a previous user screening.	user_transaction_id
feedback_user	Update user event status based on manual review.	user_transaction_id, action, reason

Development & Logging

The server uses FastMCP and sends logs through the MCP context. You can view logs in the Claude Desktop "Developer Console" to inspect outgoing payloads and API responses for debugging.

Common Error: If you receive "An API key is needed," ensure the FRAUDLABSPRO_API_KEY environment variable is correctly set in your configuration file and that you have restarted the MCP client.

License

See the LICENSE file.