Read-only MCP server for Calibre-Web: library search, browsing and covers via the OPDS feed
Connect Runs on your machine
claude mcp add calibreweb-mcp -e CALIBRE_WEB_URL=<CALIBRE_WEB_URL> -e CALIBRE_WEB_USERNAME=<CALIBRE_WEB_USERNAME> -e CALIBRE_WEB_PASSWORD=<CALIBRE_WEB_PASSWORD> -e CALIBRE_WEB_INSECURE_TLS=<CALIBRE_WEB_INSECURE_TLS> -e CALIBRE_WEB_ALLOW_TOOLS=<CALIBRE_WEB_ALLOW_TOOLS> -e CALIBRE_WEB_DENY_TOOLS=<CALIBRE_WEB_DENY_TOOLS> -- npx -y [email protected]{
"mcpServers": {
"calibreweb-mcp": {
"command": "npx",
"args": [
"-y",
"[email protected]"
],
"env": {
"CALIBRE_WEB_URL": "<CALIBRE_WEB_URL>",
"CALIBRE_WEB_USERNAME": "<CALIBRE_WEB_USERNAME>",
"CALIBRE_WEB_PASSWORD": "<CALIBRE_WEB_PASSWORD>",
"CALIBRE_WEB_INSECURE_TLS": "<CALIBRE_WEB_INSECURE_TLS>",
"CALIBRE_WEB_ALLOW_TOOLS": "<CALIBRE_WEB_ALLOW_TOOLS>",
"CALIBRE_WEB_DENY_TOOLS": "<CALIBRE_WEB_DENY_TOOLS>"
}
}
}
}{
"mcpServers": {
"calibreweb-mcp": {
"command": "npx",
"args": [
"-y",
"[email protected]"
],
"env": {
"CALIBRE_WEB_URL": "<CALIBRE_WEB_URL>",
"CALIBRE_WEB_USERNAME": "<CALIBRE_WEB_USERNAME>",
"CALIBRE_WEB_PASSWORD": "<CALIBRE_WEB_PASSWORD>",
"CALIBRE_WEB_INSECURE_TLS": "<CALIBRE_WEB_INSECURE_TLS>",
"CALIBRE_WEB_ALLOW_TOOLS": "<CALIBRE_WEB_ALLOW_TOOLS>",
"CALIBRE_WEB_DENY_TOOLS": "<CALIBRE_WEB_DENY_TOOLS>"
}
}
}
}{
"servers": {
"calibreweb-mcp": {
"type": "stdio",
"command": "npx",
"args": [
"-y",
"[email protected]"
],
"env": {
"CALIBRE_WEB_URL": "<CALIBRE_WEB_URL>",
"CALIBRE_WEB_USERNAME": "<CALIBRE_WEB_USERNAME>",
"CALIBRE_WEB_PASSWORD": "<CALIBRE_WEB_PASSWORD>",
"CALIBRE_WEB_INSECURE_TLS": "<CALIBRE_WEB_INSECURE_TLS>",
"CALIBRE_WEB_ALLOW_TOOLS": "<CALIBRE_WEB_ALLOW_TOOLS>",
"CALIBRE_WEB_DENY_TOOLS": "<CALIBRE_WEB_DENY_TOOLS>"
}
}
}
}Replace the values in angle brackets with your own. Keys stay on your machine; we never see them.
Tools
This server runs locally, so its tools are listed by your MCP client once it starts.
Environment variables
| Name | Description |
|---|---|
CALIBRE_WEB_URLRequired | Root URL of the Calibre-Web instance, e.g. https://books.example.com |
CALIBRE_WEB_USERNAMEOptional | Username of the Calibre-Web account (web login); leave unset together with the password for anonymous-browsing instances |
CALIBRE_WEB_PASSWORDOptional, secret | Password of that account (web login password) |
CALIBRE_WEB_INSECURE_TLSOptional | Set to true to accept self-signed certificates (scoped to the configured host) |
CALIBRE_WEB_ALLOW_TOOLSOptional | Comma-separated tool names or list_* prefixes to register; 'essential' selects a curated preset (default: all tools) |
CALIBRE_WEB_DENY_TOOLSOptional | Comma-separated tool names or list_* prefixes to remove from whatever CALIBRE_WEB_ALLOW_TOOLS left |
Details
| Package | [email protected] (NPM, stdio) |
| Package | ghcr.io/ni-c/calibreweb-mcp:0.3.1 (OCI, stdio) |
| First published | 7 Sep 2026 |
| Last updated | 7 Sep 2026 |
| Registry name | io.github.ni-c/calibreweb-mcp |
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