postals-mcp

The agent skill that turns any AI into a direct mail machine. One MCP tool call mails a physical handwritten postcard — real pen-and-ink on real paper, USPS delivery in 3-5 business days, $4.99 per card. Works with Claude Desktop, Cursor, Claude Code, OpenClaw, n8n, LangChain, and any MCP-compatible client.

Installation

MCP client config (paste into mcp.json)

{
  "mcpServers": {
    "postals-mcp": {
      "command": "npx",
      "args": [
        "postals-mcp"
      ]
    }
  }
}

Agent install prompt

Copy and paste into Cursor / Claude / other agents to install this MCP for you

Please read this MCP repository and install it into my current environment:
https://github.com/coopergwrenn/postals-mcp

Known working client config (can write into mcp.json):
{
  "mcpServers": {
    "postals-mcp": {
      "command": "npx",
      "args": [
        "postals-mcp"
      ]
    }
  }
}

Please: 1) check README for deps and env vars; 2) write config for my client; 3) if secrets are missing, tell me what to fill — do not invent values.

GitHub

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