Ebook File Check
Run EPUBCheck for EPUB specification errors and compare two exports.
Connect it
Settings → Connectors → Add custom connector
URL: https://powmcp.com/epub-check/mcpSettings → Apps & Connectors → Advanced → Developer mode
Create connector with URL: https://powmcp.com/epub-check/mcp{
"mcpServers": {
"epub-check": {
"url": "https://powmcp.com/epub-check/mcp"
}
}
}claude mcp add --transport http epub-check https://powmcp.com/epub-check/mcp{
"servers": {
"epub-check": {
"type": "http",
"url": "https://powmcp.com/epub-check/mcp"
}
}
}2 tools, verified live
ebook_checkread-onlyValidates one EPUB (a directly hosted public URL or a file attached in chat) against the EPUB 2/3 specification using a pinned local EPUBCheck 5.4.0 engine run in a no-network sandbox. Each call takes exactly one source: the url parameter or the file attachment, never both. Returns the automated verdict: pass boolean, EPUB version, message counts by severity (fatal/error/warning/usage), findings g
ebook_compareread-onlyRuns the identical pinned EPUBCheck 5.4.0 validation over exactly two EPUB builds (directly hosted public URLs or files attached in chat, baseline first, revised second) sequentially under one shared 110-second deadline, then reports which spec findings regressed or were fixed between them. Returns per-build hashes, EPUB versions, pass verdicts and severity counts, a regressions list (rules that a
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