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 20 Aug 2026

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 20 Aug 2026, 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.

Alternatives to DolarAPI

If DolarAPI does not fit, these finance & crypto apis cover similar ground. Every one was called before publishing, and each links to its own reference page with a working curl command and the response it returned.

API	What it does	Auth	CORS	Last verified
CoinGecko	Free cryptocurrency price API covering 10,000+ coins. Live prices, market cap and volume in any currency, no API key on the public tier. Tested curl example.	No key	Yes	19 Aug 2026
Binance Public API	Binance public market data API needs no API key: live ticker prices, order books, klines and 24h stats for every trading pair. Tested curl example and response.	No key	Yes	19 Aug 2026
Coinbase Exchange Rates	Coinbase public exchange rates API with no key: convert any cryptocurrency to 100+ fiat currencies in a single request. Tested curl example and live JSON.	No key	Yes	19 Aug 2026
Frankfurter	Free currency exchange rate API with no key, built on European Central Bank data. Latest and historical rates, time series and conversion. Tested curl example.	No key	Yes	19 Aug 2026
ECB Data Portal	Free European Central Bank Data Portal API with no key: official exchange rates, interest rates, inflation and euro area economic statistics. Tested.	No key	No	20 Aug 2026
Elering Nord Pool Prices	Free Elering API with no key: Nord Pool day-ahead electricity prices for Estonia, Finland, Latvia and Lithuania in EUR/MWh at 15-minute resolution. Tested example.	No key	No	21 Aug 2026

All Finance & Crypto APIs

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