Mecker Capital Z-Score History API

Use this endpoint when you need a time series of z-scores for charting, visual analysis, or backtesting a mean reversion strategy on a specific cointegrated crypto pair. Prefer this over the single current z-score endpoint when you need historical context, calibration data, or want to evaluate how stable a signal has been. Choose hourly for intraday analysis and daily for longer-term regime studies up to 720 periods.

• Invalid pair_key returns 404 or empty result — pair may not be cointegrated or tracked
• lookback out of range (below 1 or above 720) returns validation error
• Invalid interval value (not '1h' or '1d') returns schema validation error
• Payment not included or insufficient USDC triggers 402 Payment Required
• Rate limiting or quota exceeded may return 429
• Service unavailable returns 503