You can use these APIs directly to build interesting stats, infographics, or just for fun. If you publish anything, be sure to credit Firestone as the source of the data.
If you want to use data for a public app, please reach out to me on Discord

API links

A few placeholders used at various places in the APIs:

• %timeSuffix% can be replaced by 'all-time', 'past-three', 'past-seven' or 'last-patch' to get data for different time periods
• %tribeSuffix% is either 'all-tribes' (recommended), or a combination of five tribes, separated by a hyphen (-), and using the tribe id as defined in https://github.com/Zero-to-Heroes/hs-reference-data/blob/master/src/enums/race.ts (but the sample size is usually too small)

General

• All cards: https://static.firestoneapp.com/data/cards/cards_enUS.gz.json
  • Other languages are also accessible by replacing enUS with a language code supported by HS

Battlegrounds

• Hero stats: https://static.zerotoheroes.com/api/bgs/heroes/bgs-global-stats-%tribeSuffix%-%timeSuffix%.gz.json
  • e.g. https://static.zerotoheroes.com/api/bgs/heroes/bgs-global-stats-all-tribes-last-patch.gz.json
  • https://github.com/Zero-to-Heroes/cron-build-bgs-hero-stats
• Perfect games: https://static.zerotoheroes.com/api/bgs-perfect-games.json
  • https://github.com/Zero-to-Heroes/trigger-publish-bgs-perfect-game
• Quest stats: https://static.zerotoheroes.com/api/bgs/quests/bgs-global-stats-%timeSuffix%.gz.json
  • https://github.com/Zero-to-Heroes/cron-build-bgs-hero-stats

Duels

• Hero / hero power / signature treasure: https://static.zerotoheroes.com/api/duels/duels-global-stats-hero-class-%mmr%-%date%.gz.json
• High-wins decks: https://static.zerotoheroes.com/api/duels/duels-global-stats-hero-class-decks.gz.json
• Buckets: https://static.zerotoheroes.com/api/duels/duels-buckets.gz.json