Skip to content
mcp/harbor
Grok

Card Mailer for Grok

me.onmax/card-mailer

Print and mail 5x7 holiday and thank-you photo cards to a US address list. $2.49/card incl. postage.

client:Grok transport:streamable-http tools:6

Install Card Mailer in Grok

.mcp.json (in your project root) 

{
  "mcpServers": {
    "card-mailer": {
      "type": "http",
      "url": "https://cards.onmax.me/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

Card Mailer in other clients

Card Mailer MCP server