API and free of charge with all dollar contributions in Argentina. No registration or key required, accept orders from any source (open CORS) and is updated several times per day, with each site update.
Only condition: if you show or publish these data, quote "Source: Dólar Claro” with a link to dolarclaro.com (or to the quotation page, the field url).
Endpoints
/api/v1/cotizaciones.json: all contributions./api/v1/{tipo}.json: a contribution./api/v1/historico/{tipo}.json: daily series of ask rate ([fecha, venta])./api/openapi.json: specification OpenAPI 3.1.
| type | Exchange rate | Series |
|---|---|---|
| official | Official USD (Banco Nación) | history |
| blue | Blue USD (informal) | history |
| MEP | MEP USD (securities) | history |
| CCL | Contado con liquidación dollar (CCL) | history |
| wholesale | Wholesale USD reference | history |
| crypto | Crypto USD (USDT) | history |
| card | Card USD | history |
| euro | Official euro | history |
| real | Official Brazilian real | history |
| CLP | Official Chilean peso | history |
| UYU | Official Uruguayan peso | history |
Fields
compra y venta in pesos; variacion_pct against the previous closure; brecha_pct against the official dollar (only $); actualizado is the time of the last source data (UTC, ISO 8601).
Example
{
"tipo": "blue",
"nombre": "Dólar blue",
"moneda": "USD",
"compra": 1550,
"venta": 1570,
"variacion_pct": 0.32,
"cierre_anterior": 1565,
"fecha_cierre_anterior": "2026-11-12",
"brecha_pct": 0.0,
"actualizado": "2026-11-13T16:57:00.000Z",
"fuente": "dolarapi.com",
"url": "https://dolarclaro.com/blue/",
"historico": "https://dolarclaro.com/api/v1/historico/blue.json"
}
fetch("https://dolarclaro.com/api/v1/blue.json").then(r => r.json()).then(d => console.log(d.venta))
Connector for AI assistants (MCP)
Server MCP remote, read-only and unauthenticated, for ChatGPT, Claude and other compatible assistants: https://dolarclaro.com/mcp (transport Streamable HTTP). Tools: get_cotizaciones, get_cotizacion(tipo), convertir(monto, tipo, operacion) y historico(tipo, desde, hasta).
In Claude: Settings → Connectors → Add custom connector and paste the URL. In ChatGPT (Developer mode): Settings → Connectors → Create, with the same URL and without authentication.
Sources
Quotations: dolarapi.com. Historical: argentinadatos.com and BCRA. More detail on Sources and methodology. For LLMs: llms.txt. Consultations: contact @dolarclaro.com.
Guidance information, not investment recommendation. No guarantee of availability.