Historical market data for Kalshi.
Full-exchange order book history for research and analysis — politics, sports, weather, crypto, and every other Kalshi market.
One catalog covering live contracts and markets that already closed. Built so you stop running your own Kalshi collector.
Sampled top-of-book history for charts and backtests. Full book updates when you need depth — reconstructed from the L2 we record.
Search the archive in the browser. Pull files into pandas or DuckDB. Hit the research API from your own stack.
curl -s "$BASE/api/v1/search?q=nasdaq" \
-H "Authorization: Bearer clab_…"
curl -s "$BASE/api/v1/markets/$TICKER/preview" \
-H "Authorization: Bearer clab_…"