# @ipayx/mcp-fx-audit > **MCP server for [iPayX Protocol](https://www.ipayx.ai)** β€” audit FX fees, compare currency conversion margins and score cross-border payment invoices, directly inside Claude, Cursor, Cline, ChatGPT or any MCP-compatible AI client. [![npm](https://img.shields.io/npm/v/@ipayx/mcp-fx-audit.svg)](https://www.npmjs.com/package/@ipayx/mcp-fx-audit) [![License: MIT](https://img.shields.io/badge/License-MIT-yellow.svg)](LICENSE) ## ✨ What it does Exposes 4 tools to your AI assistant: | Tool | Description | | --- | --- | | `audit_fx_fee` | Compute the hidden FX fee on a conversion vs the real mid-market rate | | `compare_providers` | Compare live FX quotes across Wise, OFX, Airwallex, banks, etc. | | `score_invoice` | Grade an invoice 0–100 on FX fairness with explanation | | `get_mid_market_rate` | Return the real ECB mid-market rate for any currency pair | ## πŸš€ Install ### Claude Desktop ```json { "mcpServers": { "ipayx-fx-audit": { "command": "npx", "args": ["-y", "@ipayx/mcp-fx-audit"], "env": { "IPAYX_API_KEY": "optional_for_live_provider_quotes" } } } } ``` ### Cursor / Cline / Continue Same config β€” drop into your MCP settings. ### Smithery ```bash npx -y @smithery/cli install @ipayx/mcp-fx-audit --client claude ``` ## πŸ”‘ API Key Mid-market rates work without a key (powered by ECB via exchangerate.host). For **live provider comparisons**, get a free key at [ipayx.ai](https://www.ipayx.ai). ## πŸ‡«πŸ‡· Pour les utilisateurs francophones Serveur MCP qui audite les frais de change FX cachΓ©s et compare les fournisseurs (Wise, OFX, Airwallex, banques canadiennes). Connecte-le Γ  Claude Desktop ou Cursor en 30 secondes. ## License MIT Β© 2026 [iPayX Protocol](https://www.ipayx.ai)