Historical Kalshi tape for backtests.
One archive: search every series by name, then open rolling windows, events, or ladders and download the book.
Politics, sports, crypto, weather, and the rest of the exchange — one catalog, with settlement and order books you can actually pull.
Settlement, strike vs spot, and the YES path through the window — plus CSV, Parquet, or JSON tape for your own pipelines.
Search the archive, open a market, download what you need, or automate pulls with an API key.