AO3 OPDSAll guides

Setup guide

Calibre

Calibre doesn't browse OPDS catalogs on its own — you need the free, third-partyOPDS Client plugin first. Once it's installed, adding ao3-opds is a single URL.

Setting up the catalog

  1. 1

    Install the OPDS Client plugin

    In Calibre, open Preferences → Plugins → Get new plugins, search forOPDS Client, and install it. Restart Calibre afterwards.

  2. 2

    Add it to the toolbar

    Go to Preferences → Toolbars & menus, chooseThe main toolbar, select OPDS Client under available actions, and move it to the toolbar with the arrow button. ClickApply.

  3. 3

    Open the OPDS Client dialog

    Click the new OPDS Client toolbar button and enter the catalog URL:

    https://ao3-opds.abelmuak.com/opds/v1

    Press Enter (or click Download OPDS) to load the feed.

  4. 4

    Select and download

    Select the works you want, then click Download selected books to add them to your Calibre library.

Adding authentication (optional)

The OPDS Client plugin only exposes a single URL field, with no separate username/password boxes. To send your AO3 credentials, embed them directly in the URL instead:

https://username:password@ao3-opds.abelmuak.com/opds/v1

Replace username and password with your AO3 login. This is the standard HTTP "userinfo" syntax and most HTTP clients — including the ones Calibre plugins use — translate it into a Basic Auth header automatically.

Note: because the credentials sit in the URL itself, avoid pasting it anywhere it could be logged or shared (browser history, chat, etc.), and use it on a device you trust.
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