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BinSearchLookup MCP Server Adds Card Fraud Detection to AI Agents in Minutes

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A free tool called BinSearchLookup MCP server allows developers to add card fraud detection capabilities to AI agents such as Claude Desktop and Cursor without writing custom integration code. The server exposes five tools that can validate card numbers using the Luhn algorithm, identify issuing banks via BIN lookups, and score fraud risk, all without exposing full card numbers to the AI model's context window. Setup requires signing up at binsearchlookup.com to obtain a free API key, which provides 500 requests per month with no credit card required. The server connects via the open Model Context Protocol (MCP) standard and can be configured using either Docker or a direct Python setup in under five minutes. Built-in features such as automatic rate-limit handling, exponential backoff, and session-level caching are included out of the box, reducing the burden on developers.

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