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postcards

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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.

  • Updated Apr 16, 2026
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