Epublys

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

1. Sign up at https://epublys.com/account (free tier is permanent, not a trial) and create an API key (epl_… — shown once).
2. 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.