Since Claude Desktop only supports OAuth authentication, the “mcp-remote” proxy, which runs via “npx”, is used to connect to the Site.pro MCP server. Before you begin, ensure that: The Integrations package is activated. Instructions: How to change the Integrations plan used?An API key has been generated (it is recommended to select “Read-only key” during activation). Instructions: How to activate a custom integration via simplified API? More information about the purpose of the MCP server can be found in the article How to activate the MCP server for connection with Site.pro?. “macOS” system Open the terminal application and install “Node.js” (version 18 or newer) by entering the command: brew install nodeOpen the Claude Desktop application, go to settings (cmd + ,) and select the Developer section.Click “Edit Config” — a folder with the “claude_desktop_config.json” file will open; open it with a text editor (e.g., “TextEdit”).After the first curly brace, paste the MCP server settings, and instead of “Jūsų API raktas” (Your API key), enter your generated API key:{  "mcpServers": {    "sitepro-erp": {      "command": "npx",      "args": [        "-y",        "mcp-remote@latest",        "https://site.pro/My-Accounting/mcp",        "--header",        "Authorization: Bearer ${AUTH_TOKEN}"      ],      "env": {        "AUTH_TOKEN": "Your API key"      }    }  }}Save the file and restart your computer. “Windows” system Install “Node.js” (version 18 or newer) and the Claude Desktop application if you do not have them yet.In the Claude Desktop application, select Developer → Edit Config and open the “claude_desktop_config.json” file in the folder that appears.After the first curly brace, paste the MCP server settings, and instead of “Jūsų API raktas” (Your API key), enter your generated API key:{  "mcpServers": {    "sitepro-erp": {      "command": "npx.cmd",      "args": [        "-y",        "mcp-remote@latest",        "https://site.pro/My-Accounting/mcp",        "--header",        "Authorization: Bearer ${AUTH_TOKEN}"      ],      "env": {        "AUTH_TOKEN": "Your API key"      }    }  }}Save the file and restart the Claude Desktop application. After restarting the application, you will see the connected MCP server in Claude's settings, and in the chat, you will be able to ask questions about Site.pro company data — for example, requesting to show sales or unpaid invoices. More information can be found at this link: https://modelcontextprotocol.io/docs/2026-07-28/develop/build-server#testing-your-server-with-claude-for-desktop Note. MCP tools operate in read-only mode, so company data cannot be corrupted.