Epublys
EPUB/PDF tools: merge, split, compress, convert, edit metadata, validate ebooks.
Install
Add this to your client's MCP configuration (Claude Desktop: claude_desktop_config.json; Cursor: .cursor/mcp.json; VS Code and others use the same "mcpServers" shape).
claude mcp add --transport http epublys 'https://epublys.com/mcp' --header 'Authorization: <Authorization>'{
"mcpServers": {
"epublys": {
"type": "http",
"url": "https://epublys.com/mcp",
"headers": {
"Authorization": "<Authorization>"
}
}
}
}Documentation
From the project's README on GitHub, refreshed weekly. Links open on GitHub.
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: none needed for the free tier. An optional Bearer API key (free at https://epublys.com/account) carries your account's allowance and Pro.
- Server card: https://epublys.com/.well-known/mcp/server-card.json
- Full agent docs: https://epublys.com/llms-full.txt
- Registry:
com.epublys/epublyson the official MCP registry
Quickstart
Without a key (free tier)
Claude Code:
claude mcp add --transport http epublys https://epublys.com/mcpAny other MCP client (claude_desktop_config.json, cline_mcp_settings.json, etc.):
{
"mcpServers": {
"epublys": {
"url": "https://epublys.com/mcp"
}
}
}The free tier is identified by IP address and shares the website's free daily allowance. It is permanent, not a trial.
With a key (your account's allowance, Pro)
- Sign in at https://epublys.com/account and create an API key (
epl_…— shown once). - Send it as a Bearer header:
{
"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"
A wrong, malformed or revoked key is a 401, not a silent fall back to the free tier. The key goes in the Authorization header only; a key in the URL is rejected.
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 |
epub_to_markdown | Convert EPUB to Markdown |
markdown_to_epub | Build an EPUB3 from Markdown files (YAML frontmatter, Obsidian wikilinks) |
docx_to_epub | Convert DOCX 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) |
upgrade_to_pro | Return a Stripe checkout link for the account behind the key (keyless calls get the pricing URL) |
Files are passed as base64-encoded strings in tool arguments and results.
Limits
| Free | Pro ($9/mo or $72/yr) | |
|---|---|---|
| File size | 5 MB (15 MB split_epub, 10 MB pdf_to_epub) | 30 MB per request |
| Merge | 10 files, 20 MB total | 50 files, 30 MB total |
| Daily operations | 3 per day (reading metadata is never metered) | unlimited |
| 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.
Frequently asked questions
What is Epublys?
EPUB/PDF tools: merge, split, compress, convert, edit metadata, validate ebooks.
How do I install Epublys?
It runs as a remote server. In Claude Code: claude mcp add --transport http epublys 'https://epublys.com/mcp' --header 'Authorization: <Authorization>'. For other clients, paste the JSON configuration from this page into their MCP settings.
Does Epublys need an API key?
Yes. It expects Authorization, which you set in its configuration.
Is Epublys open source?
Its code is public on GitHub, but the repository does not declare a standard license.
Who maintains Epublys?
It is published by Takyon236. AI.tn lists it but does not maintain or endorse it.
From the official MCP Registry. Listing is not an endorsement: review a server's code and permissions before giving it access to your data.