50 calls/day, no card required.
The response contains your api_key (starts with apex_). Send it as the X-API-Key header on every request.
The honest baseline: an efficient market (edge=0) wins ~95% of trades yet loses money to fees.
Ask the council to vote on your own market data.
Seven analyses (backtest, significance, walk-forward, OOS, permutation, regime) in one Markdown report.
Backtest on real downloaded prices for crypto, stocks, or ETFs (server fetches it):
List assets with GET /v1/assets. Validate an edge end-to-end with /v1/gate (GO/NO-GO).
The full robustness suite is available — same auth, same shape: /v1/oos (out-of-sample split), /v1/permtest (permutation p-value), /v1/regime (volatility bands), /v1/sensitivity (parameter robustness), /v1/sweep (break-even edge), /v1/compare (head-to-head), /v1/montecarlo, /v1/walkforward, /v1/significance. Full schemas at /docs.