Pandoc Host Service FAQs

Question 1

What is Pandoc Host Service?

Accepted Answer

Pandoc Host Service allows you to use your existing Pandoc installation on your host machine for document conversion within containerized environments. It uses a two-component architecture: a Python Flask host service and a TypeScript MCP server running in the container.

Question 2

Why use Pandoc Host Service instead of installing Pandoc in the container?

Accepted Answer

This approach avoids the need to install Pandoc and its dependencies inside each container, saving space and simplifying container builds. It leverages the existing Pandoc installation on the host machine.

Question 3

What are the prerequisites for using Pandoc Host Service?

Accepted Answer

The host machine needs Python, pip, Pandoc (installed and in PATH), and TeX Live/MiKTeX for PDF output. The container needs Node.js, npm/yarn, and network access to the host machine running the Pandoc Host Service.

Question 4

What file formats are supported?

Accepted Answer

The service supports conversion between various formats, including Markdown, HTML, PDF, DOCX, and TXT. LaTeX and EPUB support are currently in preview and may require additional configuration.

Question 5

How do I configure the connection between the container and the host service?

Accepted Answer

The container service requires the URL of the running Pandoc Host Service. This is set via the `PANDOC_HOST_URL` environment variable.  Configure it in your deployment environment (e.g., LibreChat) or a `.env` file for local development.

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