AO3 Kudos Checker

AO3 Kudos Checker adds a small status badge next to every work title on Archive of Our Own, letting you check whether you've left kudos on a fic — even without being logged in. Simply enter your AO3 username (or multiple usernames) in the extension popup, then click the ◎ badge next to any work to trigger a check. The extension scans the work's public kudos pages, stops as soon as it finds a match, and saves the result locally so each work only needs to be checked once. Features: - Works on listing pages, search results, user pages, and individual work pages - Supports multiple usernames (useful if you have alt accounts) - Results are cached locally — no repeat scanning - Rate-limited requests to be considerate of AO3's servers - Works while logged out — uses public kudos pages only - Light and dark mode support. ‎ Limitations: - Can only scan 1 work at a time and works with over 4k kudos will take some time - Guest kudos are anonymous and cannot be detected - Works with login-locked fics only if you are logged into AO3 in your browser - Large works with many kudos may take a moment to scan