Epublys MCP Server

EPUB/PDF tools: merge, split, compress, convert, edit metadata, validate ebooks.

Remote serverstreamable-http

What is the Epublys MCP server?

EPUB/PDF tools: merge, split, compress, convert, edit metadata, validate ebooks. That is what the epublys mcp server brings to an AI assistant: the same capability, reachable through the Model Context Protocol rather than a separate app or dashboard.

The short version

This is a hosted server (Streamable HTTP). There is nothing to install — this repository holds the public manifests, configuration examples, and documentation.

The Epublys service itself is closed-source. This repository contains only the public MCP manifests (server.json, smithery.yaml) and documentation, and is the canonical public home for the com.epublys/epublys registry entry. Issues are welcome for MCP integration problems; for product support use https://epublys.com/about.

The tools it exposes

The server publishes 9 tools. What each one is for:

  • merge_epub — Merge multiple EPUB files into one
  • split_epub — Split an EPUB by chapter ranges
  • compress_epub — Compress an EPUB to reduce file size
  • epub_to_pdf — Convert EPUB to PDF
  • pdf_to_epub — Convert PDF to EPUB
  • read_epub_metadata — Read EPUB metadata
  • edit_epub_metadata — Edit EPUB metadata and cover
  • validate_epub — Validate EPUB structure (with optional auto-fix)
  • generate_cover — Generate an AI book cover from a description (Pro)

Getting it running

Because this one is hosted, setup is mostly authentication — you point your client at the endpoint and approve access. Nothing runs on your machine, so there is no runtime to keep patched.

How it compares

Among the developer tooling options, the useful question is rarely "what can it do" but "what does it cost you to run" — permissions, credentials, and how much of your context its toolset consumes. Epublys's toolset — merge_epub, split_epub, compress_epub and 6 more — is a fair guide to whether it matches your workflow. It is maintained by com.epublys; worth a glance at recent repository activity before you build anything load-bearing on it.

This entry was verified against Epublys's own documentation before publication; SyncDev keeps the directory reviewed rather than auto-generated.

Things to watch

  • Your data travels to the provider's service, so the usual questions apply about what you send and what they retain.
  • With 9 tools registered it takes up a noticeable share of the context window; turn it off in projects that never touch Epublys.
  • Keep per-call confirmation enabled while you learn its behaviour; it is the cheapest safeguard you have.

Available tools

ToolWhat it does
merge_epubMerge multiple EPUB files into one
split_epubSplit an EPUB by chapter ranges
compress_epubCompress an EPUB to reduce file size
epub_to_pdfConvert EPUB to PDF
pdf_to_epubConvert PDF to EPUB
read_epub_metadataRead EPUB metadata
edit_epub_metadataEdit EPUB metadata and cover
validate_epubValidate EPUB structure (with optional auto-fix)
generate_coverGenerate an AI book cover from a description (Pro)

How to install the Epublys MCP server

{
  "mcpServers": {
    "epublys": {
      "url": "https://epublys.com/mcp",
      "headers": { "Authorization": "Bearer epl_YOUR_KEY_HERE" }
    }
  }
}

Configuration as documented by the project. Restart the client after saving.

Example prompts to try

  • Use Epublys to merge epub.
  • Use Epublys to split epub.
  • Use Epublys to compress epub.

Frequently asked questions

It connects Epublys to MCP-compatible AI assistants such as Claude and Cursor, exposing 9 tools (merge_epub, split_epub, compress_epub, and more) that the assistant can call on your behalf. Instead of copying data back and forth by hand, the assistant works with Epublys directly.