Depending on your subscription level, you will have a maximum monthly number of API request credits available (see pricing page). DataMiner operations count towards API requests usage. Your remaining credits are displayed on the Dashboard and also on the DataMiner & API tab in Account Settings. When needed, you can purchase additional credits on demand.
Each operation has a specific cost, outlined in the following tables. The cost is either calculated based on iterations or data points.
The cost is 1 API request credit per iteration.
Rank performance data for a date range. DataMiner: 1 credit per bucket. API: 1 credit. The DataMiner cost is higher because it runs a Screen backtest for each bucket which allows it to return many useful statistics. The API version returns only the performance of each bucket and the benchmark.
|RanksMulti||Ranks for universe on a date. 1 credit per Ranking system.|
|RanksPeriod||Ranks for a Universe for a date range. 1 credit per date.|
|RollingScreen||Multiple screens over date range. 1 credit per version of the screen.|
|ScreenBacktest||Screen backtest over a date range. 1 credit.|
|ScreenRun||Runs a screen for a date. 1 credit.|
Data point based
Each 25,000 data points will count as 1 API request credit. Multiplying the number of rows times the number of columns of the data returned gives you the number of data points.
|Data||Formula values for tickers for a date range. Data point is the number of stock, date and formula combinations.|
|DataUniverse||Formula values for universe on a date. Data point is the number of stock, date and formula combinations.|
|Ranks||Ranks for universe on a date. The number of columns returned depends on what options you have selected in your script for the 'columns' parameter and if you have requested any formulas in the Additional Data section.|
For all of the above, which allow you to specify custom universe rules or ranking system rules within the script, there is a cost of 1 additional request credit any time you define a custom ranking system or universe in the script.