Central Bank of Trinidad & Tobago Exchange Rate API: Official TTD Rates as JSON

The Central Bank of Trinidad and Tobago publishes the official exchange rates that accounting, tax, and customs rules in Trinidad and Tobago reference — published official rates, not moving market prices. This guide shows how to pull them as JSON: via a REST endpoint or the zero-dependency cbtt-exchange-rate npm package.

What the CBTT publishes

• Daily buying and selling rates for the US dollar and ~10 currencies including the CARICOM pairs (BBD, XCD, GYD, JMD).
• History back to 1991 in our API — thirty-five years covering the 1993 float and everything since.
• The bank's own publication date on every response, so a rate is always citable.
• No gaps to trip over — weekends and public holidays resolve to the most recent published rates and are flagged explicitly.

The CBTT table is the official reference for the largest economy in the southern Caribbean — and one of the region's deepest archives: our series starts January 1991, catching the pegged 4.25 era and the April 1993 float that took USD/TTD to 5.76.

Why official rates, not market rates

A live mid-market feed answers "what is USD/TTD trading at right now?" — the right tool for checkouts and dashboards. But accountants, auditors, and tax authorities ask a different question: "which rate were you required to use for this date?" That answer comes from the Central Bank of Trinidad and Tobago's published rates, and it never changes after publication.

Get the latest rates (REST)

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

The response is the bank's most recent published data — every rate and the publication date. The latest rates are available on every plan, including the free tier (300 requests/month, no credit card).

The npm SDK

npm install cbtt-exchange-rate

import { getRate, getLatestRates } from 'cbtt-exchange-rate';

// One pair at the official CBTT rate
const pair = await getRate('USD', 'TTD', { apiKey: 'art_live_...' });
console.log(pair.rate, pair.rate_date);

// The bank's full published table
const table = await getLatestRates({ apiKey: 'art_live_...' });
console.log(table.rate_date, table.rates.length);

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

Historical rates for an invoice date

import { getRatesForDate, getHistory } from 'cbtt-exchange-rate';

// The official rates for an invoice date — non-publication days return
// the most recent published date, flagged via published_on_requested_date.
const day = await getRatesForDate('2026-06-30', { apiKey: 'art_live_...' });

// Time series for one pair
const series = await getHistory(
  { source: 'USD', target: 'TTD', from: '2026-01-01' },
  { apiKey: 'art_live_...' }
);

Historical dates and time series need a paid plan; the latest rates stay free.

Published vs derived pairs

If the CBTT does not print a pair directly, the API resolves it from the bank's published rates — an inverse, or a cross rate via TTD — and flags it derived: true with the method used. Official and computed values are never silently mixed, which is exactly the distinction an auditor will ask about.

Thirty-five years, one float

From the post-devaluation peg at 4.25, through the 1993 float, to the managed 6.7–6.8 band of today — the whole official record is queryable by date. For audits that reach decades back, few official sources anywhere offer this much depth.

FAQ

Does the Central Bank of Trinidad and Tobago have an official exchange rate API?

The CBTT publishes its official rates on its own site, and AllRatesToday serves the same published rates as clean JSON via REST or the cbtt-exchange-rate npm package. The latest table is free.

How often do Central Bank of Trinidad and Tobago rates update?

Once per business day, with buying and selling rates. Publication trails the trading day by about one business day — the API always serves the most recent published table and carries its date.

Can I get the CBTT rate for a past date, like an invoice date?

Yes. The /central-bank/cbtt/rates-for-date endpoint returns the official rates for any archived date. Non-publication days resolve to the most recent published date and are flagged, so your audit trail stays honest. Historical dates require a paid plan; latest rates are free.