Historical schedule replay

Replay regular crypto purchases against a source you can inspect

Model BTC or ETH purchases over the last 365 completed UTC days. Every result shows the CoinGecko request, actual source range, costs, used events and missed events. This is historical education—not a price forecast or investment recommendation.

Set the historical schedule

Your contribution and cost inputs stay in this browser. Only asset, currency and UTC date range are sent to the history endpoint.

Fixed to the last completed UTC day.
Purchase frequency
This is the total cash outlay. Entered costs reduce the amount used to acquire the asset.
Optional percentage for fees or spread.
Optional cost in the selected currency.

A receipt, not a black box

Run the replay to see gross cash outlay, modeled costs, acquired units, schedule coverage and the value at the last available source price.

Method and limitations

UTC schedule

Daily, weekly and two-week schedules use fixed UTC-day intervals. Monthly schedules keep the chosen calendar day and clamp to month-end when needed.

No look-ahead

Each event uses the latest unused CoinGecko reference point at or before the end of that UTC date, only when the gap is 36 hours or less.

Gross-outlay comparison

Percentage and fixed costs reduce acquisition cash. Modeled change compares value at the last source price with the gross cash actually used on accepted events.