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mcp/harbor
Grok

zen for Grok

io.github.krystiangw/zen

Unofficial MCP server for the ZEN.com Payment Gateway: payment links, transactions, refunds.

client:Grok transport:stdio runtime:npm

Install zen 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": {
    "zen": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "@krystiangw/zen-mcp"
      ],
      "env": {
        "ZEN_API_KEY": "<ZEN_API_KEY>",
        "ZEN_PAYWALL_SECRET": "<ZEN_PAYWALL_SECRET>",
        "ZEN_IPN_SECRET": "<ZEN_IPN_SECRET>",
        "ZEN_ENV": "<ZEN_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

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