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Grok

Postedly for Grok

com.postedly/send

Prepare physical mail and fax quotes, review before payment, and track orders with OAuth.

client:Grok transport:streamable-http

Install Postedly in Grok

.mcp.json (in your project root)

{
  "mcpServers": {
    "send": {
      "type": "http",
      "url": "https://postedly.com/mcp/send"
    }
  }
}

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

Postedly in other clients