What is PieterPost MCP?

PieterPost MCP is a remote server that connects AI agents to postal mail. It works with ChatGPT, Claude, Codex, Claude Code, and any other MCP-compatible client. Through this integration, agents can prepare letters and postcards, pull saved contacts from Mailbook, upload attachments or postcard images, generate secure checkout links, and track order status. PieterPost MCP brings the full PieterPost online mail, API, and payment-link workflow directly into your assistant's toolset.

Who it's for

• AI power users who want to draft and send physical mail without leaving their chat interface
• Developers and teams building agentic workflows that need to produce postal mail on demand
• Small business owners who send customer follow-ups, invoices, or thank-you notes and want to automate the process through their existing AI tools

Key features

Prepare mail from chat

Turn a prompt, note, or pasted draft into a clean letter or postcard. The assistant formats the content and opens it in PieterPost for review before anything is printed.

Use Mailbook contacts

After authorizing the connector, your assistant can pull saved contacts and address requests directly from your PieterPost Mailbook. No need to type addresses manually.

Create checkout links

Generate secure checkout links so the sender can review the message, recipient, price, and postage before paying. This keeps final approval in your hands.

Track and manage orders

Check wallet balance, quote an order, find order status, or create top-up links for API-credit workflows — all from within the same conversation.

What stands out

PieterPost MCP keeps the conversational work in your assistant and the final approval in PieterPost, so every letter or postcard can be checked before it is mailed.

This separation of drafting and sending is what makes PieterPost MCP different. Your AI handles the creative and organizational work — writing the message, picking the recipient, generating a link — but you always get a chance to review the exact copy, address, format, and image before checkout. The payment step happens securely in PieterPost, not inside the chat. That means no accidental sends, no surprises, and full control over every piece of mail.

Worth checking out if…

You use AI assistants regularly and want to send physical mail without switching between apps. PieterPost MCP is especially useful if you already rely on ChatGPT, Claude, or another MCP-compatible client for drafting and task management. It fits naturally into workflows where the idea, recipient details, review link, and order status all belong in the same conversation. If you send letters or postcards more than once a month and want to automate the process without losing oversight, this is worth a look.