EPUBCheck by pagespool for VS Code

com.pagespool/epubcheck

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

client:VS Code transport:streamable-http tools:1

Install EPUBCheck by pagespool in VS Code

.vscode/mcp.json

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

Requires agent mode. MCP: Open User Configuration puts the same block in every workspace. VS Code docs