PieterPost MCP

io.github.neddesPublished by GitHub account neddesv1.0.0Updated Oct 24, 2026

Let AI agents prepare, review, pay for, and send real letters and postcards.

VerifiedStreamable HTTPWeb executableProductivity & WorkflowBusiness & Commerce

Overview

AI-generated overview

Hosted MCP server that lets an assistant draft, price, review, pay for and send real physical letters, postcards and printed greeting cards.

What you can do
  • Draft letters and postcards, quote prices, and check order status
  • Create review links and hosted payment links so the user approves and pays before mail is sent
  • Design printed greeting cards: list card options, create, read and update card designs with PNG previews
  • Upload photos and other assets and reference them by asset ID in a card design
  • Use Address Book contacts and account tools through the authenticated server
When to use it
Useful when someone wants an assistant to prepare real postal mail or a printed greeting card and send it through a human review-and-payment step, rather than only drafting text.
Requirements
A remote Streamable HTTP endpoint; no local package or runtime. The guest server needs no account or authentication and offers the card tools plus nine public mail tools. Account tools and saved contacts require OAuth sign-in. Payment is made through hosted payment links.
Before you install
It sends real physical mail and involves real payments, so orders should go through the review or payment link the user completes themselves. Card drafts do not create a paid order. Uploaded photos and address book contacts are sent to the PieterPost service. Fallback-font and print warnings should be explained before ordering.

Installation

In SourceWeft

  1. Open PieterPost MCP in the dashboard and add it to a workspace.
  2. Enable the server for the chats that should use its tools.

Web executable via Streamable HTTP. Remote servers run from the web runtime once configured in a workspace.

Use with an agent

Paste this prompt into Claude Code, Codex, Cursor or another agent — or into SourceWeft chat. The agent reads this server's install guide, shows you its publisher, endpoint and sign-in, and adds it to your client once you agree. Keys never go into a command.

Read https://sourceweft.com/mcp/io.github.neddes%2Fpieterpost-mcp/install.md and connect the MCP server it describes to my client. Before changing any config, show me its publisher, endpoint and sign-in method and wait for my OK. Never put an API key in a command or in a file I would commit; ask me where it should come from.

Read the install guide the agent follows

Other MCP clients

Add this to your client's mcpServers config.

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

README

PieterPost MCP

PieterPost MCP is a hosted Model Context Protocol (MCP) server for preparing, pricing, reviewing, paying for, and sending real physical letters, postcards, and printed greeting cards from ChatGPT, Claude, and other compatible AI assistants.

This public repository contains the integration documentation and registry metadata for the hosted PieterPost MCP server.

Server

What It Does

PieterPost gives MCP clients a safe postal outbox. Agents can design printed greeting cards with PNG previews, draft letters and postcards, quote prices, create review links, create hosted payment links, upload assets, use Address Book contacts, and check order status.

For normal use, agents should create a PieterPost review or payment link. PieterPost sends the mail only after the user reviews and pays.

For greeting cards, use list_card_options, create_card_design, get_card_design, and update_card_design. Upload a supplied photo with upload_asset, then use its asset ID in the design. The private editor link lets the user refine and order the card. Card drafts do not create a paid order. Explain fallback-font and print warnings before ordering.

The guest server at https://pieterpost.com/mcp/public/ needs no account or authentication. It includes the four card tools and nine public mail tools. Account tools and saved contacts use the OAuth server above.

Client Configuration

Use this server URL in MCP clients that support remote Streamable HTTP servers:

text
https://pieterpost.com/mcp/setup/

Example MCP client snippet:

json
{  "type": "mcp",  "name": "PieterPost",  "server_url": "https://pieterpost.com/mcp/setup/"}

Docs

Contact

For questions, contact [email protected].

Source: README.md at commit 3cec87e

Tools

0
SourceWeft has not read this server's tools yet.

Version history

1
  1. v1.0.0LatestSep 16, 2026

Score

75% of the applicable checks met

How complete this listing is, computed from the registry entry, the endpoint and public sources. Not a rating of the server and not a statement that it is safe or working today: reachability is a dated check, and no installs or reviews go into the score.

  • Reached in the last 30 daysRequired25 pts
  • Auth declaredRequired10 pts
  • Tools listedRequired15 pts

    Answer tools/list without a credential, or ship a package that starts in a sandbox without one.

  • DescriptionRequired15 pts
  • Logo10 pts
  • Documentation15 pts
  • License10 pts

    Declare a license in the repository or the registry entry.