Bitcoin cycle indicators (Pi Cycle, Mayer, 200W/2Y MAs, golden ratio, profitable days, S2F, Puell, Bitfinex margin): latest readings, Pi Cycle cross dates and daily series.

Free with an account key (Authorization: Bearer bk_...; a free key comes with any verified account, required for programs from 2026-09-10). Licence: personal and research use with attribution; commercial use with the Business plan. Query: days, points=0.