Skip to content
Grok

PhoneCheck for Grok

dev.workers.mike-tusa.phonecheck/phonecheck

Offline phone-number validation and formatting (E.164, region, line type). No carrier lookup.

client:Grok transport:streamable-http tools:2

Install PhoneCheck in Grok

.mcp.json (in your project root)

{
  "mcpServers": {
    "phonecheck": {
      "type": "http",
      "url": "https://phonecheck.mike-tusa.workers.dev/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

PhoneCheck in other clients