PieterPost MCP

io.github.pieterpost-comPublished by GitHub account pieterpost-comv1.2.0Updated Nov 3, 2026

Design letters and cards, and prepare, review, pay for, and send letters and postcards.

VerifiedStreamable HTTPWeb executableProductivity & Workflow Business & Commerce

Server details

Identifier: io.github.pieterpost-com/pieterpost-mcp
Transport: Streamable HTTP
Runtime: Web executable
Trust: Verified
Published: Sep 21, 2026

Security note

MCP servers receive tool arguments from a conversation and may perform external actions. Review what a server can do before you enable it, and give it only the access it needs.

The registry verified the GitHub account pieterpost-com for this listing. That does not show the account is the product's maker.

SourceWeft's checks cover whether the listing is complete and the endpoint answered; they do not review the server's code or what its tools do.

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Overview

PieterPost's hosted MCP server (pieterpost.com); OAuth sign-in required; Streamable HTTP.

No AI overview yet: these facts come from the registry entry and the server itself.

Endpoint: pieterpost.com
Documentation: pieterpost.com
Last checked: Nov 3, 2026

Installation

In SourceWeft

Open PieterPost MCP in the dashboard and add it to a workspace.
Connect the required credentials. They are stored privately and never shown on public pages.
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.pieterpost-com%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. The client completes OAuth sign-in on first connect.

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

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, designed letters, 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

MCP server URL: pieterpost.com/mcp/setup/
Human docs: PieterPost MCP documentation
Markdown docs: PieterPost MCP documentation in Markdown
OAuth issuer: https://pieterpost.com/mcp/oauth

What It Does

PieterPost gives MCP clients a safe postal outbox. Agents can design letters and 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.

For designed letters (fonts, colours, photos, illustrations, extra pages, personal fields like {{first_name}}), use list_letter_options, create_letter_design, get_letter_design, and update_letter_design. Pick the postal layout for the recipient's country. Results list print issues per page, including clashes with other countries' address windows; these block ordering. The private editor link lets the user add recipients and order the letter.

The guest server at https://pieterpost.com/mcp/public/ needs no account or authentication. It includes the four card tools, the four letter design 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:

Example MCP client snippet:

Docs

Contact

For questions, contact [email protected].

Source: README.md at commit a43d004

Tools

This server asks you to sign in, so SourceWeft could not read its tools without an account and has not indexed them. What a connected account sees can depend on that account and its permissions.

Version history

v1.2.0LatestNov 3, 2026
v1.1.0Oct 29, 2026
v1.0.1Sep 21, 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 listed15 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.