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Epublys MCP server

Which MCP servers are Epublys's own, from the official registry and from asking its own domain, whether they answer, and what they offer. A program checked each of these, nobody copied them from a product page.

read 2026-10-18

← Back to Epublys

Whose server it is
  • Registry namecom.epublys/epublysverified in the MCP registry

The registry name sits under epublys.com. The registry only lets a publisher use that namespace after proving control of the domain through DNS or HTTP.

When we asked itchecked 2026-10-18
  • Staterequires sign-inchecked 2026-10-18

On 2026-10-18 the server answered and asked for a sign-in with a Epublys account (OAuth). It shows its tool list only to signed-in users, so we list none here.

Should an agent connect itConnect it, with care
  • Its tools do every use case we checked: Merge several EPUB files into one book; Compress EPUB files to smaller sizes; Convert Word manuscripts into valid EPUB files.

Once connected

  • For "Merge several EPUB files into one book", the likely first call is merge_epub.
  • For "Compress EPUB files to smaller sizes", the likely first call is compress_epub.
  • For "Convert Word manuscripts into valid EPUB files", the likely first call is docx_to_epub.
  • edit_epub_metadata change data without a sign-in: anyone with the address can call them.

Said by rules from the measurements above. The likely first call is a model's pick from the tool list; read its description before relying on it.

Measured dailydaily checks: 9, the first on 2026-10-19
  • INITE MCP score66 of 100answers 89 · does the job 100 · definitions 79 · context 93 · use 0 · connects 100 · lowered by the warning signs below
  • What an agent can do with it3 of 3 use cases
  • Answered100% of days9 of 9 daily checks
  • Median first answer2134 ms
  • Space in an agent's context≈ 3,879 tokensthe definitions of all its tools (13), which an agent carries on every turn
  • Tool definitionsB · 79 of 100
  • Typed results0 of 13 toolsdeclared outputSchema: results come typed, read once
  • Parameters without a description: in 3 of 13
  • Not saying whether it only reads or can destroy: 13 of 13

What an agent can do with it

  • can do · Merge several EPUB files into one book
  • can do · Compress EPUB files to smaller sizes
  • can do · Convert Word manuscripts into valid EPUB files

Each of the product's use cases, put to Jev against this server's tool list: can an agent do it with these tools?

Worth a look

  • Tools that change data, on a server that answers without a sign-in: edit_epub_metadata

A program checks the server once a day: initialize and tools/list, no model. Tokens are the definitions' length at about four characters a token. The grade averages six checks of every tool's name, description, schema and annotations; it says how well the tools are described, not whether they work. The score weighs what was measured and nothing else: answering (25%), doing the product's job (25%), definitions (20%), context (10%), use (10%) and how readily a client connects (10%). A part that was not measured is left out, and a hidden instruction caps the score at 40. The state of vendors' MCP servers: method and numbers →

How to connect

Add the server to your MCP client config. Claude Desktop, Cursor and most other clients read this shape:

{
  "mcpServers": {
    "epublys": {
      "type": "http",
      "url": "https://epublys.com/mcp"
    }
  }
}

Add it

Claude Code, in a terminal

claude mcp add --transport http epublys https://epublys.com/mcp

Add to CursorAdd to VS Code

claude.ai, ChatGPT and other clients: add https://epublys.com/mcp as a custom connector in the settings.

The first time it connects, the client opens a Epublys sign-in.

OpenAPI spec

14 paths, read 2026-10-18. Open the spec ↗

Each line is something a program found when it went looking: the registry entry, the server's own answer, a spec that parses. A missing line means we did not find it, not that it does not exist.