Banco de Guatemala Exchange Rate API

Official Banco de Guatemala rates for 10 Sept 2026: 1 USD = 7.6291 GTQ. All 1 currency published, history back to 2004. Free JSON API for tax, audits, and compliant invoicing.

Banco de Guatemala official daily exchange rates as JSON: 1 currency against the GTQ, history back to 2004. Latest table on every plan. Get your API key.

About Banco de Guatemala

The Banco de Guatemala calculates the tipo de cambio de referencia — the official quetzal/dollar reference rate Guatemalan law points to for tax, customs, and contract settlement — every calendar day, and alongside it publishes daily buy/sell quotations for about 25 other currencies against the dollar, with history back to 2004.

• Official website: banguat.gob.gt
• Official rate publication: Tipo de cambio de referencia

Quick start

One request for the pair you need — USD to GTQ at the official Banco de Guatemala rate:

curl "https://allratestoday.com/api/v1/central-bank/banguat/latest?source=USD&target=GTQ" \
  -H "Authorization: Bearer art_live_your_key"

Or the bank's full published table:

curl "https://allratestoday.com/api/v1/central-bank/banguat/latest" \
  -H "Authorization: Bearer art_live_your_key"

On paid plans, any historical date or a time series:

curl "https://allratestoday.com/api/v1/central-bank/banguat/history?source=USD&target=GTQ&from=2025-01-01" \
  -H "Authorization: Bearer art_live_your_key"

Latest published rates (2026-09-10)

Below is the current table from Banco de Guatemala, unmodified — what a call to /latest returns right now, with values GTQ per 1 unit of each currency:

Download this table: Excel (.xlsx) CSV (paid plan required)

Base	Quote	Type	Rate
USD	GTQ	reference	7.62913

Node.js / TypeScript client

A dedicated zero-dependency npm package wraps these endpoints — banguat-exchange-rate:

npm install banguat-exchange-rate

import { getRate } from 'banguat-exchange-rate';

const pair = await getRate('USD', 'GTQ', { apiKey: 'art_live_...' });
console.log(pair.rate, pair.rate_date);

Zero dependencies, TypeScript types included, and it runs anywhere fetch exists — Node 18+, Bun, Deno, and edge runtimes.

Full reference — installation, all four functions, response shapes, error codes: banguat-exchange-rate documentation.

Why use the official Banco de Guatemala rate?

When an auditor or tax office in Guatemala asks which rate you used, "the GTQ mid-market rate at 14:32" is not an answer — the official rate published by Banco de Guatemala for that date is. This API returns exactly those published figures, stamped with the bank's own rate_date; on weekends and holidays the most recent published table is returned, as compliance rules expect.

Pairs the bank doesn't print directly are resolved from its table (inverse or cross via GTQ) and explicitly flagged "derived": true — so what the bank printed and what was computed are never confused.

Endpoints

• GET /api/v1/central-bank/banguat/latest — latest table or single pair (all plans)
• GET /api/v1/central-bank/banguat/{YYYY-MM-DD} — the table for any date (paid plans)
• GET /api/v1/central-bank/banguat/history — time series, up to 5,000 rows (paid plans)
• GET /api/v1/central-bank/banguat/availability — publication calendar: the dates the bank actually published (all plans)

Full parameter reference in the API documentation. Every request counts toward your plan's monthly quota — rates change once per business day, so caching a published table locally makes a small quota go far.

Frequently asked questions

Is there an API for Banco de Guatemala exchange rates?

Yes — this one. Official daily GTQ rates as clean JSON, latest table on every plan including free.

How often does Banco de Guatemala update its rates?

New tables land once per business day — the API picks each one up shortly after Banco de Guatemala publishes it (latest: 2026-09-10).

Is this the official published table?

Yes — the rows are Banco de Guatemala's published figures, untouched, with the original publication date attached. Pairs the bank didn't print are computed and flagged derived.

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