Epublys MCP Server

Remote MCP server for EPUB and PDF ebook manipulation — merge, split, compress, convert, edit metadata, validate, and generate AI covers. Backed by epublys.com, running on Cloudflare Workers.

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

Endpoint: https://epublys.com/mcp (Streamable HTTP)
Auth: Bearer API key — free at https://epublys.com/account
Server card: https://epublys.com/.well-known/mcp/server-card.json
Full agent docs: https://epublys.com/llms-full.txt
Registry: com.epublys/epublys on the official MCP registry

Quickstart

Sign up at https://epublys.com/account (free tier is permanent, not a trial) and create an API key (epl_… — shown once).
Add to your MCP client config (claude_desktop_config.json, cline_mcp_settings.json, etc.):

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

Claude Code: claude mcp add --transport http epublys https://epublys.com/mcp --header "Authorization: Bearer epl_YOUR_KEY_HERE"

Tools

Tool	Description
`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)

Files are passed as base64-encoded strings in tool arguments and results.

Limits

	Free	Pro ($9/mo or $72/yr)
File size	10 MB (25 MB `split_epub`, 20 MB `pdf_to_epub`)	100 MB
Merge	10 files	500 files
Rate	15 req/min	60 req/min
Output branding	Epublys colophon	none
`generate_cover`	—	30/month

Privacy

Files are processed in memory and never stored. There is no upload bucket, no retention, no content logging. Anonymous usage metrics only (tool name, status, sizes).

REST API

The same tools are available over plain REST with an OpenAPI spec — see https://epublys.com/for-ai-agents.

About this repository

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.