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mcp/harbor
Grok

1Lookup for Grok

io.1lookup/1lookup

Verify phone numbers, emails and IPs, and check remaining plan credits.

client:Grok transport:streamable-http

Install 1Lookup in Grok

.mcp.json (in your project root) 

{
  "mcpServers": {
    "1lookup": {
      "type": "http",
      "url": "https://app.1lookup.io/api/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

1Lookup in other clients

1Lookup MCP server