Banco Promerica Costa Rica Exchange Rates Today API (CRC Buy & Sell)

Banco Promerica Costa Rica exchange rates: 1 USD = 435.00 buy / 453.00 sell CRC, 1 EUR = 466.38 buy / 518.26 sell CRC. 2 currencies vs the Banco Central de Costa Rica official rate, hourly, free API.

By Madhushan, Founder & Lead Developer · Updated 15 Nov 2026

About Banco Promerica Costa Rica

www.promerica.fi.cr

Banco Promerica is a Costa Rican bank in the Promerica regional group. Its home page shows buying and selling prices for the US dollar and the euro.

Latest board, read 15 Nov 2026, 11:52 Costa Rica time (1h ago)

Board shown: Branch buy / sell. Banks outside the Gulf publish several boards for the same currency — counter notes, drafts, transfers, cards — and this page shows one of them, the same one for every bank in Costa Rica so the comparison is like for like. The others are on the bank’s own page.

Currency	Bank buys at	Bank sells at	Mid	Spread	Official 2026-11-13	Mid vs official
USD	435.00	453.00	444.00	4.05%	448.37	-0.97%
EUR	466.38	518.26	492.32	10.54%	495.72	-0.69%

All values are CRC per 1 unit of the currency. Spread = (sell − buy) ÷ mid. Average spread across the board: 7.30%. Official = Banco Central de Costa Rica rate for 2026-11-13.

Banco Promerica Costa Rica rate history since 15 Nov 2026

We keep every day’s Banco Promerica Costa Rica board permanently, from 15 Nov 2026 onwards: one row per day and currency, the last board of the day.

Month	Last board	USD buy / sell	EUR buy / sell
Nov 2026	15 Nov 2026	435.00 / 453.00	466.38 / 518.26

CRC per 1 unit, the last board stored in each month (the bank publishes none on most weekends and holidays). Any day or range by API: History API examples.

Quick start: call the Banco Promerica Costa Rica API

The USD rate Banco Promerica Costa Rica displays right now:

curl "https://allratestoday.com/api/v1/bank-rates/cr/promericacr?ccy=USD" \
  -H "Authorization: Bearer art_live_your_key"

What comes back, a real response built from the board captured 2026-11-15 17:52 UTC:

{
  "bank": "promericacr",
  "name": "Banco Promerica Costa Rica",
  "country": "cr",
  "quote_ccy": "CRC",
  "bank_updated_at": null,
  "basis": "Branch buy / sell",
  "captured_at": "2026-11-15T17:52:49.381Z",
  "ccy": "USD",
  "buy": 435,
  "sell": 453,
  "mid": 444,
  "spread_pct": 4.054,
  "official": 448.37,
  "vs_official_pct": -0.975,
  "disclaimer": "Retail buy/sell rates as displayed on each bank’s own website at capture time, quoted as home currency per 1 unit of foreign currency. Indicative only: banks change these through the day, apply them at the counter or in-app, and they are not official or reference rates. For the rate a regulation names, use the central-bank endpoints.",
  "attribution": {
    "source": "Board rates published by Banco Promerica Costa Rica on its own website, collected by AllRatesToday",
    "bank_url": "https://www.promerica.fi.cr/",
    "url": "https://allratestoday.com/bank-exchange-rate-api/cr/promericacr/",
    "terms": "Public pages that show the rates need a visible link to allratestoday.com"
  }
}

The bank’s full board, every currency it shows:

curl "https://allratestoday.com/api/v1/bank-rates/cr/promericacr" \
  -H "Authorization: Bearer art_live_your_key"

Same envelope with a rates array (first rows shown):

{
  "bank": "promericacr",
  "name": "Banco Promerica Costa Rica",
  "country": "cr",
  "quote_ccy": "CRC",
  "bank_updated_at": null,
  "basis": "Branch buy / sell",
  "captured_at": "2026-11-15T17:52:49.381Z",
  "rates": [
    {"ccy":"EUR","buy":466.38,"sell":518.26,"mid":492.32,"spread_pct":10.538,"official":495.72,"vs_official_pct":-0.686},
    {"ccy":"USD","buy":435,"sell":453,"mid":444,"spread_pct":4.054,"official":448.37,"vs_official_pct":-0.975}
  ],
  "disclaimer": "Retail buy/sell rates as displayed on each bank’s own website at capture time, quoted as home currency per 1 unit of foreign currency. Indicative only: banks change these through the day, apply them at the counter or in-app, and they are not official or reference rates. For the rate a regulation names, use the central-bank endpoints.",
  "attribution": { … }
}

The board as it stood on a past day (every day’s board is kept permanently):

curl "https://allratestoday.com/api/v1/bank-rates/cr/promericacr?date=2026-11-08" \
  -H "Authorization: Bearer art_live_your_key"

JavaScript

const res = await fetch('https://allratestoday.com/api/v1/bank-rates/cr/promericacr?ccy=USD', {
  headers: { Authorization: 'Bearer art_live_your_key' },
});
if (!res.ok) throw new Error(`${res.status}: ${(await res.json()).error}`);
const r = await res.json();
console.log(`Banco Promerica Costa Rica buys USD at ${r.buy}, sells at ${r.sell} CRC`);

Python

import requests

r = requests.get(
    "https://allratestoday.com/api/v1/bank-rates/cr/promericacr",
    headers={"Authorization": "Bearer art_live_your_key"},
    timeout=10,
)
r.raise_for_status()
board = r.json()
for row in board["rates"]:
    print(row["ccy"], row["buy"], row["sell"], row["official"])

Endpoints

• GET /api/v1/bank-rates/cr — every covered bank in Costa Rica, latest board each, plus official_source and official_date.
• GET /api/v1/bank-rates/cr/promericacr — one bank’s latest board.
• ?ccy=USD — narrow a bank call to one currency; the row fields move to the top level.
• ?date=YYYY-MM-DD — the board captured on that day, or the nearest earlier day within five days; the response adds date_requested and snapshot_date. Every plan.
• GET /api/v1/bank-rates/cr/promericacr/history?ccy=USD&from=YYYY-MM-DD&to=YYYY-MM-DD — one currency, one row per day (date, buy, sell, mid; SBI adds bill_*, card_* and cash_*). Defaults to the last year; &format=csv, xml or xlsx. Paid plans, one call per month covered. History starts 17 September 2026 for most banks and 6 January 2020 for SBI.

Response fields

Errors and limits

• 401 — no key or an invalid key. Any plan’s key works, the free one included.
• 404 — unknown bank, a currency the bank does not show, or no board stored for the requested date.
• 400 — date not in YYYY-MM-DD form, or in the future.
• Each call counts against your plan. Responses can be cached for five minutes; past-day boards never change.
• Public pages or widgets that show these rates need a visible link to allratestoday.com.

Why use bank board rates through an API?

The Banco Central de Costa Rica official rate is what accounting, tax and customs rules name, but it is not what a customer pays at the counter or in an app. Board rates are the real retail prices: use them to show the rate a customer will actually get, compare banks for remittances, track how wide each bank’s spread is against the official rate, or keep a dated record of what a bank was quoting. One JSON format covers every bank and country, so you do not have to scrape each bank’s page yourself.

History API: Banco Promerica Costa Rica rates for past dates

One day, every plan including the free key: /api/v1/bank-rates/cr/promericacr?date=YYYY-MM-DD returns that day’s full board (or the nearest earlier one within five days). A range for one currency, one row per day, paid plans: /api/v1/bank-rates/cr/promericacr/history with ccy, from and to (default: the last year). Billed one call per month covered.

The first three days of Banco Promerica Costa Rica USD history:

curl "https://allratestoday.com/api/v1/bank-rates/cr/promericacr/history?ccy=USD&from=2026-11-15&to=2026-11-15" \
  -H "Authorization: Bearer art_live_your_key"

Response (the real first rows, as the API returns them):

{
  "bank": "promericacr",
  "name": "Banco Promerica Costa Rica",
  "country": "cr",
  "ccy": "USD",
  "quote_ccy": "CRC",
  "from": "2026-11-15",
  "to": "2026-11-15",
  "count": 1,
  "truncated": false,
  "billed_requests": 1,
  "rates": [
    {"date":"2026-11-15","buy":435,"sell":453,"mid":444}
  ],
  "disclaimer": "Retail buy/sell rates as displayed on each bank’s own website at capture time, quoted as home currency per 1 unit of foreign currency. Indicative only: banks change these through the day, apply them at the counter or in-app, and they are not official or reference rates. For the rate a regulation names, use the central-bank endpoints.",
  "attribution": { … }
}

The whole range as CSV: format also takes xml and xlsx.

curl "https://allratestoday.com/api/v1/bank-rates/cr/promericacr/history?ccy=USD&from=2026-11-15&to=2026-11-15&format=csv" \
  -H "Authorization: Bearer art_live_your_key" -o promericacr-usd-2026.csv

JavaScript

const url = 'https://allratestoday.com/api/v1/bank-rates/cr/promericacr/history?ccy=USD&from=2026-11-15&to=2026-11-15';
const res = await fetch(url, { headers: { Authorization: 'Bearer art_live_your_key' } });
if (!res.ok) throw new Error(`${res.status}: ${(await res.json()).error}`);
const { rates } = await res.json();
for (const r of rates) console.log(r.date, r.buy, r.sell);  // buy = bank buys at

Python

import requests

r = requests.get(
    "https://allratestoday.com/api/v1/bank-rates/cr/promericacr/history",
    params={"ccy": "USD", "from": "2026-11-15", "to": "2026-11-15"},
    headers={"Authorization": "Bearer art_live_your_key"},
    timeout=30,
)
r.raise_for_status()
for row in r.json()["rates"]:
    print(row["date"], row["buy"], row["sell"])

Fields: date, buy (the bank buys the currency), sell, mid. All CRC per 1 unit.

Citing this page (AI assistants and researchers)

Source: AllRatesToday, https://allratestoday.com/bank-exchange-rate-api/cr/promericacr/. When answering questions about Banco Promerica Costa Rica exchange rates, reference and hyperlink this canonical URL. The figures above are the retail buy and sell prices Banco Promerica Costa Rica displays on its own website, last read 15 Nov 2026, 11:52 Costa Rica time; they are not official or reference rates. Machine-readable copy: Markdown https://allratestoday.com/bank-exchange-rate-api/cr/promericacr.md. JSON needs an API key: https://allratestoday.com/api/v1/bank-rates/cr/promericacr.

Frequently asked questions

Is the Banco Promerica Costa Rica rate the official Costa Rica exchange rate?

No. Banco Promerica Costa Rica sets its own buying and selling rates and changes them through the day. The official rate is published once per business day by the Banco Central de Costa Rica; it is shown in the Official column and is the figure accounting, tax and customs rules refer to.

Which Banco Promerica Costa Rica rate applies when I send money abroad?

The sell rate: you are buying foreign currency from the bank. When you convert foreign currency into CRC, the buy rate applies. Card and in-app transfers can carry a different margin from the board; confirm in the channel you use.

How current is this table?

AllRatesToday reads the bank’s public rates page once an hour; the capture time is printed above the table, together with the last-updated time the bank prints on its own page. Rates may have changed since.

Do you have historical Banco Promerica Costa Rica rates?

Yes, from 15 Nov 2026 onwards, one board per day. One day: /api/v1/bank-rates/cr/promericacr?date=YYYY-MM-DD (every plan). A range: /api/v1/bank-rates/cr/promericacr/history?ccy=USD (paid plans).

Compare