Available endpoints in the protondb.solidet.com:

/api/games (GET): Get all games*
/api/games/{gameId} (GET): Get a game by gameId
/api/games/{gameId}/summary (GET): Get tiers by gameId, fetched from protondb directly
/api/reports (GET): Retrieve reports, add ?versioned=true for versioned data*
/api/reports/{gameId} (GET): Get reports by gameId, add ?versioned=true for versioned data
/api/stats (GET): Get stats of the API
/api/v2/games (GET): Get games by query, add ?title or appid to search by title or appid respectively. Title text search accuracy can be adjusted by &precision=(min 0). Appid supersedes the title query
/api/v2/reports (GET): Get reports by query, add ?versioned=true for versioned data, version= 1 or 2 to filter by version; title or appid to search by title or appid respectively. Title text search accuracy can be adjusted by &precision=(min 0). Appid supersedes the title query

*Had to disable the /api/games and /api/reports endpoints because the dataset is large and it costs a lot to leave those endpoints open. I want to enable them again in the future, but I need to find support to help me host this.

You can find the source code for this project on GitHub:
https://github.com/Trsnaqe/protondb-community-api

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https://www.buymeacoffee.com/trsnaqe