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mcp/harbor
Grok

joltsms sms for Grok

io.github.rchanllc/joltsms-sms

Provision real-SIM US phone numbers, receive SMS, and extract OTP codes for AI agents.

client:Grok transport:stdio runtime:npm

Install joltsms sms 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": {
    "joltsms-sms": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "@joltsms/mcp-server"
      ],
      "env": {
        "JOLTSMS_API_KEY": "<JOLTSMS_API_KEY>"
      }
    }
  }
}

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

joltsms sms in other clients

joltsms sms MCP server