Postbot

cz.postbotPublished by postbot.czOfficial publisherv0.1.0Updated Oct 25, 2026

Send real paper letters in the Czech Republic, ordinary or registered, via Česká pošta.

VerifiedStreamable HTTPWeb executableProductivity & WorkflowBusiness & Commerce

Overview

AI-generated overview

Sends real paper letters in the Czech Republic through Česká pošta and checks their delivery status.

What you can do
Send a paper letter via Česká pošta, ordinary or registered, from a PDF, markdown or plain text that the server renders into a letter. Provide a sender address when sending registered mail. Look up the delivery status of a sent letter by its order code.
When to use it
Use it when an assistant needs to produce and mail physical correspondence in the Czech Republic, such as invoices, notices or formal letters, and to follow up on whether they were delivered.
Requirements
Runs as a remote endpoint or as a local npm package started with npx. Requires a Česká pošta DopisOnline (PostServis) account username and password, set through POSTBOT_CP_USER and POSTBOT_CP_PASSWD, and POSTBOT_TEST set to 1 for sandbox or 0 for live sending. Optional default sender details can be set through the POSTBOT_FROM_ variables.
Before you install
With POSTBOT_TEST set to 0, letters are real and billable, so use the sandbox first. The account password is supplied through POSTBOT_CP_PASSWD. Sending transmits the letter content and recipient address to Česká pošta. Registered mail requires a sender address.

Installation

In SourceWeft

  1. Open Postbot 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/cz.postbot%2Fpostbot/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": {
    "postbot": {
      "type": "http",
      "url": "https://postbot.cz/mcp"
    }
  }
}

Tools

2

send_letter_cz

Mail a real paper letter in the Czech Republic via Česká pošta. Provide the letter as a PDF (base64 or URL) or as markdown/text (we render it). Choose ordinary (obycejne) or registered (doporucene). Registered requires a `from` sender address.

ParameterstorequiredfromnotetestjobRefservicedocumentrequired

get_letter_status

Look up the delivery status of a sent letter by its ČP order code.

ParametersorderCoderequired

Version history

1
  1. v0.1.0LatestOct 15, 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
  • DescriptionRequired15 pts
  • Logo10 pts
  • Documentation15 pts

    Declare a GitHub repository with a README, or serve resource_documentation in the OAuth protected-resource metadata.

  • License10 pts

    Declare a license in the repository or the registry entry.