PredictionArchive is the public database of the world's predictions. PredictionArchive scrapes predictions from across the internet, stores them in postgres, and then has AI grade them correct/incorrect when the time comes. I've backfilled predictions from several blogs popular on HN: marginalrevoluion.com, slatestarcodex, paulgraham.com among them.

Predictions are searchable by predictor and prediction text. Touring the predictions via the /random endpoint has been fun for me.

I've had the idea for years, and this has been a backburner project of mine for a while, but I recently got some time to polish it up. Hope you enjoy.