How to use it
Select a dollar type
Use the dropdown or selector to choose which dollar type to chart — for example, Blue, Oficial, or MEP.
Choose a time range
Select how far back you want to look. The chart updates immediately when you change the range.
Supported dollar types
Type (casa) | Display name | Description |
|---|---|---|
oficial | Oficial | Regulated central bank rate |
blue | Blue | Informal parallel market rate |
bolsa | Bolsa (MEP) | Stock exchange dollar (MEP) |
contadoconliqui | CCL | Contado con liquidación |
mayorista | Mayorista | Wholesale rate |
cripto | Cripto | Implied rate from stablecoin markets |
tarjeta | Tarjeta | Card rate (official + taxes) |
Time ranges
| Range label | Period covered |
|---|---|
| 1 week | Last 7 days |
| 1 month | Last 30 days |
| 3 months | Last 90 days |
| 6 months | Last 180 days |
| 1 year | Last 365 days |
| All time | Full available history |
Chart behavior
Missing data handling
If the API returns gaps in the time series, the chart fills them using the last known valid value. This prevents visual breaks in the line.
Color-coded datasets
Each dollar type has a distinct line color so you can distinguish them if multiple series are displayed simultaneously.
Data source
Historical rates are fetched from:{casa} with the dollar type identifier (e.g., blue, oficial). The API returns a time series of daily buy and sell rates for the requested type.
Data availability varies by dollar type. Some types have shorter histories than others. The All time range will display whatever history the API has for the selected type.