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mcp/harbor
Grok

MuPag Sandbox Payments for Grok

br.com.mupag/mcp-server

Sandbox-only MuPag MCP server for approved payments, subscriptions, refunds, and reconciliation.

client:Grok transport:stdio runtime:npm

Install MuPag Sandbox Payments in Grok

.mcp.json (in your project root)

Held in this page only — never stored, logged, or sent anywhere but back to your screen. 

{
  "mcpServers": {
    "mcp-server": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "@mupag/mcp-server"
      ],
      "env": {
        "MUPAG_API_KEY": "<MUPAG_API_KEY>",
        "MUPAG_ENV": "<MUPAG_ENV>"
      }
    }
  }
}

Grok Build reads Claude Code's .mcp.json and Claude Desktop's config unchanged, so a server you have already set up there needs nothing new. The Grok web app and X integration do not take custom servers. Grok docs

MuPag Sandbox Payments in other clients

MuPag Sandbox Payments MCP server