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Overview

The ArgentinaDatos API is a free, open API that provides Argentine economic and financial data. Argentista uses it to retrieve historical monthly CPI (Consumer Price Index) inflation figures and historical dollar exchange rates. The API requires no authentication. There are no documented rate limits.
Data is sourced from INDEC (Instituto Nacional de Estadística y Censos), Argentina’s official national statistics bureau.
Base URL 
https://api.argentinadatos.com

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GET /v1/finanzas/indices/inflacion

Returns a time series of monthly CPI inflation readings for Argentina. Each entry represents the percentage change in consumer prices for that calendar month. This endpoint powers the InflationCalculator, InflationChart, and InflationGraph components.

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Request

curl https://api.argentinadatos.com/v1/finanzas/indices/inflacion
This endpoint takes no parameters.

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Response fields

Returns a JSON array. Each element represents one month’s CPI reading.
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[]
object[]
Array of monthly inflation records.

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Example response

[
  { "fecha": "2017-01-01", "valor": 1.3 },
  { "fecha": "2017-02-01", "valor": 2.5 },
  { "fecha": "2024-11-01", "valor": 2.4 },
  { "fecha": "2024-12-01", "valor": 2.7 }
]
The array is sorted chronologically from oldest to most recent. Coverage begins in January 2017.

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GET /v1/cotizaciones/dolares/

Returns the full historical daily exchange rate series for a specific Argentine dollar market type. Each entry contains the buy (compra) and sell (venta) prices in Argentine pesos (ARS) for a given date. This endpoint powers the DollarHistoryChart component.

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Path parameters

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casa
string
required
The dollar market type to retrieve. Must be one of the values in the table below.
ValueDescription
oficialOfficial government rate (BNA)
blueInformal/parallel market rate
bolsaElectronic Payment Market (MEP) — via bonds
contadoconliquiCash with settlement (CCL) — capital flight rate
mayoristaWholesale rate for large transactions
criptoCryptocurrency-implied exchange rate
tarjetaCredit card rate (includes PAIS tax)

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Request

curl https://api.argentinadatos.com/v1/cotizaciones/dolares/blue
Replace blue with any valid casa value.

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Response fields

Returns a JSON array sorted by date in ascending order.
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[]
object[]
Array of daily exchange rate records.

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Example response

[
  { "fecha": "2023-01-02", "compra": 177.0, "venta": 180.0 },
  { "fecha": "2023-01-03", "compra": 177.0, "venta": 180.0 },
  { "fecha": "2023-01-04", "compra": 177.0, "venta": 180.0 }
]
Some entries have null values for venta. Argentista fills these gaps using forward-fill (last valid value carried forward) before rendering charts.

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Notes

  • No authentication required. All endpoints are publicly accessible.
  • No documented rate limits. Avoid hammering the API; cache responses where possible.
  • Data source. Inflation data comes from INDEC official publications. Exchange rate data comes from publicly reported market sources.
  • The blue dollar represents Argentina’s informal parallel market rate, which operates outside the official banking system.
For more information, visit the ArgentinaDatos website.

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