DolarAPI

Free Latin American currency API with no key: live dollar rates for Argentina, Chile, Brazil, Uruguay, Venezuela and more, across all market types. Tested.

No API key requiredCORS enabledHTTPSFree tier

Endpoint tested and returned HTTP 200 on 2026-08-20

What is the DolarAPI?

DolarAPI is a free, key-free API providing live US dollar exchange rates for Latin American countries — Argentina, Chile, Brazil, Uruguay, Venezuela, Bolivia and others — including parallel and official market rates where they differ.

Several Latin American economies operate multiple simultaneous exchange rates, and the gap between the official and parallel rate can be enormous. DolarAPI tracks all of them per country in one consistent schema.

For Argentina in particular the `casa` field is essential — oficial, blue, MEP, CCL, tarjeta and cripto are all genuinely different rates. Displaying a peso conversion without naming which one you used is meaningless to an Argentine user.

Quick facts

Base URL: https://dolarapi.com/v1
Authentication: No API key required.
Rate limit: No published hard limit; fair use expected.
Pricing: Free and open source.
CORS: Enabled — callable directly from browser JavaScript
Official docs: Read the docs

How to use the DolarAPI

Every request below was executed against the live API on 2026-08-20, and the response shown is the real body it returned — not an illustration.

1. Fetch Argentine dollar exchange rates

GET https://dolarapi.com/v1/dolares

curl

curl 'https://dolarapi.com/v1/dolares'

JavaScript (fetch)

const res = await fetch("https://dolarapi.com/v1/dolares");
if (!res.ok) throw new Error(`Request failed: ${res.status}`);
const data = await res.json();
console.log(data);

Python (requests)

import requests

res = requests.get("https://dolarapi.com/v1/dolares", timeout=20)
res.raise_for_status()
print(res.json())

Response — HTTP 200

[
  {
    "moneda": "USD",
    "casa": "oficial",
    "nombre": "Oficial",
    "compra": 1465,
    "venta": 1515,
    "fechaActualizacion": "2026-08-19T18:55:00.000Z"
  },
  {
    "moneda": "USD",
    "casa": "blue",
    "nombre": "Blue",
    "compra": 1540,
    "venta": 1560,
    "fechaActualizacion": "2026-08-20T02:01:00.000Z"
  },
  {
    "moneda": "USD",
    "casa": "bolsa",
    "nombre": "Bolsa",
    "compra": 1520.1,
    "venta": 1529.5,
    "fechaActualizacion": "2026-08-20T02:01:00.000Z"
  },
  {
    "moneda": "USD",
    "casa": "contadoconliqui",
    "nombre": "Contado con liquidación",
    "compra": 1577,
    "venta": 1578.2,
    "fechaActualizacion": "2026-08-20T02:01:00.000Z"
  },
  {
    "moneda": "USD",
    "casa": "mayorista",
    "nombre": "Mayorista",
    "compra": 1488,
    "venta": 1497,
    "fechaActualizacion": "2026-08-19T15:48:00.000Z"
  },
  {
    "moneda": "USD",
    "casa": "cripto",
    "nombre": "Cripto",
    "compra": 1584.69,
    "venta": 1588.5,
    "fechaActualizacion": "2026-08-20T02:01:00.000Z"
  },
  {
    "moneda": "USD",
    "casa": "tarjeta",
    "nombre": "Tarjeta",
    "compra": 1904.5,
    "venta": 1969.5,
    "fechaActualizacion": "2026-08-19T18:55:00.000Z"
  }
]

Parameters

Parameter	Type	Required	Description
`dolares`	path	Optional	All Argentine dollar market rates. `dolares`
`dolares/<casa>`	path	Optional	One market type. `dolares/blue`
`<country>/dolares`	path	Optional	Rates for another country. `chile/dolares`
`cotizaciones`	path	Optional	Other currencies against the local one. `cotizaciones`

Response fields

monedastring: Currency code, usually USD.
casastring: Market type — oficial, blue, bolsa, contadoconliqui, tarjeta, cripto.
nombrestring: Human-readable market name.
compra / ventanumber: Buy and sell rates in local currency.
fechaActualizacionstring: When the rate was last updated.

What you can build with the DolarAPI

Display peso or local-currency conversions using the correct market rate
Show the spread between official and parallel rates
Build financial tools for Latin American markets
Track rate movements across several countries

Common errors and how to fix them

Which rate to display

Multiple simultaneous rates exist per country.

Fix: Always label the `casa` you used; blue and oficial can differ by a wide margin.

404 for a country

Not every Latin American country is covered.

Fix: Check the docs for supported country paths.

Rates look stale

Update frequency varies by market.

Fix: Read fechaActualizacion rather than assuming real-time.

DolarAPI — frequently asked questions

Is DolarAPI free?

Yes, completely free and open source with no API key.

Which countries does it cover?

Argentina, Chile, Brazil, Uruguay, Venezuela, Bolivia, Colombia, Mexico, Paraguay and Peru, each with their own market types where applicable.

Why does Argentina have so many rates?

Argentina operates multiple simultaneous dollar markets — oficial, blue, MEP, CCL, tarjeta and cripto — with genuinely different values. Always label which one you display.

How does it compare with ArgentinaDatos?

ArgentinaDatos has deeper historical series for Argentina specifically; DolarAPI covers current rates across many Latin American countries in one consistent schema.

Tools that pair with this API

JSON Formatter

Format, beautify and minify JSON online with 2-space, 4-space or tab indentation. Sort keys alphabetically and catch syntax errors instantly — free and private.

Percentage Calculator

Calculate what X% of a number is, what percent one number is of another, and percentage increase or decrease between two values — instantly and free.

Unit Converter

Convert between units of length, weight, temperature, area, volume, speed, time and data storage instantly, with a swap button and common conversion tables.

DolarAPI is an independent third-party service and is not affiliated with ByteTools or ByteVancer. Details on this page were verified on 2026-08-20; always check the official documentation before relying on this API in production, as terms and limits can change.