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Grok

Rex Software MCP by usefulapi for Grok

io.usefulapi/rex-software

Read contacts, listings, tenancies and tasks; create a person contact, note or reminder.

client:Grok transport:streamable-http tools:33

Install Rex Software MCP by usefulapi in Grok

.mcp.json (in your project root)

{
  "mcpServers": {
    "rex-software": {
      "type": "http",
      "url": "https://rex-software.usefulapi.io/mcp"
    }
  }
}

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

What Grok can do once it is connected

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