PostAgent
**PostAgent lets an AI agent send real, physical mail.** Upload a document, lock a price quote, pay per send, and PostAgent prints it and ships it via USPS. Built for autonomous agents: **pay per call in USDC on Base via the [x402](https://www.x402.org/) protocol** or credit cards, no signup, no human-issued API key, no billing account. ### What it does - **Letters** — PDF, HTML, Markdown, text, DOCX, or image; black & white or color. Optional **certified, certified-with-return-receipt, or reg
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PostAgent
Source: Smithery
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