Royal Monetary Authority of Bhutan Exchange Rate API

Official Royal Monetary Authority of Bhutan (Bhutan) daily exchange rates. All dozens of currencies published. Free JSON API for tax, audits, and compliant invoicing.

Bhutan flagRoyal Monetary Authority of Bhutan: every BTN rate the bank publishes, as JSON. dozens of currencies, latest table free on every plan. Get your API key.

About Royal Monetary Authority of Bhutan

The Royal Monetary Authority of Bhutan publishes daily telegraphic-transfer buying and selling rates for 12 currencies in ngultrum. The ngultrum is pegged one-to-one to the Indian rupee, so the table tracks the rupee's moves against the dollar, euro and the other majors; the RMA's online archive starts in mid-2024.

Quick start

One request for the pair you need — USD to BTN at the official Royal Monetary Authority of Bhutan rate:

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

Or the bank's full published table:

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

Node.js / TypeScript client

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

npm install rma-bhutan-exchange-rate
import { getRate } from 'rma-bhutan-exchange-rate';

const pair = await getRate('USD', 'BTN', { 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: rma-bhutan-exchange-rate documentation.

Why use the official Royal Monetary Authority of Bhutan rate?

A market rate is a moving target; the rate Royal Monetary Authority of Bhutan publishes is a fixed, citable figure that stays put once printed — which is why invoicing, customs, audit evidence, and statutory accounting in Bhutan lean on it rather than on a live feed. Every response from this API carries the bank's own rate_date, and on days with no publication you get the most recent published table — the one compliance rules tell you to apply.

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

Endpoints

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

Does an exchange rate API exist for Royal Monetary Authority of Bhutan data?

Yes. This endpoint returns Royal Monetary Authority of Bhutan's official daily figures as JSON; the newest table is free on every plan.

How often are the rates updated?

Royal Monetary Authority of Bhutan publishes once per business day; the API ingests each new table shortly after publication.

Are these really Royal Monetary Authority of Bhutan's official figures?

Yes. Every value comes from Royal Monetary Authority of Bhutan's own publication and is served unmodified, carrying the bank's publication date; computed pairs are explicitly flagged derived.

Royal Monetary Authority of Bhutan rates, one API key

Latest table on every plan. No credit card to start.

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