EPUBCheck by pagespool MCP Server

by pagespool Your server? Claim it

answering

EPUBCheck by pagespool is answering right now. Last checked 7 min ago. It exposes 1 tools.

Hosted EPUBCheck: check an EPUB file against the EPUB specification and list every error.

Uptime history 71 hours of history · worst hour 75%

71 hours agonow

98.9%

Uptime 24h

90 of 91 checks

Tools

read from the server

225 ms

Response time

average over 24h

open, no key

Access

streamable-http

EPUBCheck by pagespool missed one check this week

Everything else answered, so this is steady rather than shaky. We check every 15 minutes, which is how a one-off gets told apart from the start of a pattern, and how you hear about the next one within the hour instead of from your users.

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 7 min ago.

Claude Code Claude Desktop Codex Cursor VS Code

run in your terminal

claude mcp add epubcheck --transport http https://api.pagespool.com/mcp/epubcheck/

Settings → Connectors → Add custom connector, then paste this address

https://api.pagespool.com/mcp/epubcheck/

~/.codex/config.toml

[mcp_servers.epubcheck]
url = "https://api.pagespool.com/mcp/epubcheck/"

.cursor/mcp.json

{
  "mcpServers": {
    "epubcheck": {
      "url": "https://api.pagespool.com/mcp/epubcheck/"
    }
  }
}

.vscode/mcp.json

{
  "servers": {
    "epubcheck": {
      "type": "http",
      "url": "https://api.pagespool.com/mcp/epubcheck/"
    }
  }
}

Available tools 1

Read directly from the server with tools/list, grouped by what they act on. If a tool disappears, we record the date.

epub

check_epub

Check an EPUB file (EPUB 2 or 3) against the EPUB specifications with EPUBCheck, the W3C's conformance checker. Input: `epub_base64` is the base64 of the EPUB, at most 4 MB decoded, or pass the file as a download link in `file`. Returns `summary` (`valid`, and the `fatal`, `error` and `warning` counts; `valid` is true when there is no FATAL and no ERROR message), `messages` (the 20 most severe, FATAL first, each with `severity`, `id`, `message`, up to three `locations` as `path:line:column`, and a `suggestion` when EPUBCheck has one), `messages_total` and `epubcheck_version`. For the full report, or files up to 25 MB, use the REST API (`POST /v1/epubcheck/check`). Credits: 2 per call.

Endpoints

URL	Transport	State	Latency	Checked
https://api.pagespool.com/mcp/epubcheck/	streamable-http	answering	254 ms	7 min ago

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EPUBCheck by pagespool — questions

Answers built from our own checks of this server.

What can EPUBCheck by pagespool do?

It exposes 1 tools, read directly from the server on our last check. Among them: check_epub. The full list with descriptions is on this page — we take it from the server itself via tools/list, not from a README. How MCP servers expose tools in the first place →

Is EPUBCheck by pagespool working right now?

We send a real MCP handshake every 15 minutes. Over the last 24 hours 90 of 91 checks got a reply (98.9%), average response time 225 ms. The bar chart above shows every period we have measured.

How do I connect EPUBCheck by pagespool?

Copy the ready config from this page. We generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each in the form that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address.

Does EPUBCheck by pagespool need an API key?

No. EPUBCheck by pagespool completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 1 of them are readable on this page. This is what we observed, not what the docs claim.

How fast is EPUBCheck by pagespool?

It answers our handshake in 225 ms on average, which is faster than 64% of all working MCP servers we measure. The comparison comes from our own checks across the whole registry, every 15 minutes.