---
title: "Banco Agromercantil de Guatemala (BAM) Exchange Rate API: GTQ Buy and Sell Rates as JSON"
description: "Banco Agromercantil de Guatemala (BAM)'s buy / sell, USD only rates for the USD against the Guatemalan quetzal, read hourly from the bank's own page and served as JSON with the Banco de Guatemala official rate alongside. REST, JavaScript and Python examples."
canonical: https://allratestoday.com/blog/banco-agromercantil-de-guatemala-bam-exchange-rate-api/
source: AllRatesToday (https://allratestoday.com/) — Markdown mirror of the page above; index of all pages at https://allratestoday.com/llms.txt
generated: 2026-11-15T19:13:47.469Z
---

Banco Agromercantil de Guatemala (BAM) is a Guatemalan bank in the Bancolombia group. Its home page shows the buying and selling price of the US dollar in quetzales. This guide shows how to read that board as JSON: what the rates mean, how they compare with the Banco de Guatemala official rate and with other banks in Guatemala, and the calls that return them.

## What the BAM board shows

- **1 currency against the Guatemalan quetzal**: USD. Every value is GTQ per 1 unit of the foreign currency.
- **The buy / sell, USD only pair.** Guatemalan banks post a buying and selling price in quetzales per US dollar. The Banco de Guatemala publishes a daily reference rate. The Banco de Guatemala official rate is shown next to each row.
- **USD on 15 November 2026**: BAM bought at 7.44 and sold at 7.82 GTQ, a spread of 4.98%. The Banco de Guatemala official rate was 7.6431, so the bank's mid sat -0.17% from it.
- **No timestamp on the bank's page.** BAM does not print a last-updated time, so `bank_updated_at` is `null` and `captured_at` (when AllRatesToday read the page) is the only time available.
- **Every day's board is kept permanently, from 15 November 2026, the day collection started.** Read one past day with `?date=`, or a range for one currency with the `/history` endpoint (paid plans).

## Spreads across the board

On the 15 November 2026 board the spread was USD 4.98%. Spread is (sell − buy) ÷ mid: what a round trip through the bank costs, before any fees. The API returns it on every row as `spread_pct`, so you can rank currencies or alert when a bank widens its board.

## USD at BAM and other banks in Guatemala

USD on the 4 boards AllRatesToday reads in Guatemala, all captured on 15 November 2026 (the Banco de Guatemala official rate was 7.6431):

| Bank | Buy | Sell | Spread | Mid vs official |
| --- | --- | --- | --- | --- |
| **Banco Agromercantil de Guatemala (BAM)** | 7.44 | 7.82 | 4.98% | -0.17% |
| Banco CHN (Crédito Hipotecario Nacional) | 7.48 | 7.79 | 4.06% | -0.11% |
| Banco Ficohsa Guatemala | 7.47 | 7.82 | 4.58% | +0.03% |
| Banrural Guatemala | 7.45 | 7.82 | 4.85% | -0.11% |

BAM had the 4th narrowest USD spread of the 4. One call to `/api/v1/bank-rates/gt` returns every board in the table at once.

## Get the board (REST)

You need an API key; the [free key](https://allratestoday.com/register/) works. The full board:

```
curl "https://allratestoday.com/api/v1/bank-rates/gt/bamgt" \
  -H "Authorization: Bearer art_live_your_key"
```

What comes back (the 15 November 2026 board, first three rows):

```
{
  "bank": "bamgt",
  "name": "Banco Agromercantil de Guatemala (BAM)",
  "country": "gt",
  "quote_ccy": "GTQ",
  "bank_updated_at": null,
  "basis": "Buy / sell, USD only",
  "captured_at": "2026-11-15T11:15:58.559Z",
  "rates": [
    {"ccy":"USD","buy":7.44,"sell":7.82,"mid":7.63,"spread_pct":4.98,"official":7.64312,"vs_official_pct":-0.172}
  ],
  "disclaimer": "…",
  "attribution": { … }
}
```

One currency, with the row fields at the top level:

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

```
{
  "bank": "bamgt",
  "name": "Banco Agromercantil de Guatemala (BAM)",
  "country": "gt",
  "quote_ccy": "GTQ",
  "bank_updated_at": null,
  "basis": "Buy / sell, USD only",
  "captured_at": "2026-11-15T11:15:58.559Z",
  "ccy": "USD",
  "buy": 7.44,
  "sell": 7.82,
  "mid": 7.63,
  "spread_pct": 4.98,
  "official": 7.64312,
  "vs_official_pct": -0.172,
  "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 Agromercantil de Guatemala (BAM) on its own website, collected by AllRatesToday",
    "bank_url": "https://www.bam.com.gt/",
    "url": "https://allratestoday.com/bank-exchange-rate-api/gt/bamgt/",
    "terms": "Public pages that show the rates need a visible link to allratestoday.com"
  }
}
```

The board as it stood on a past day:

```
curl "https://allratestoday.com/api/v1/bank-rates/gt/bamgt?date=2026-11-15" \
  -H "Authorization: Bearer art_live_your_key"
```

One currency over a date range, one row per day (paid plans; add `&format=csv`, `xml` or `xlsx` for a file):

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

## JavaScript

```
npm install @allratestoday/sdk
```

```
import { AllRatesToday } from '@allratestoday/sdk';

const client = new AllRatesToday({ apiKey: 'art_live_your_key' });

// Banco Agromercantil de Guatemala (BAM)'s USD row
const r = await client.bankRates('gt', { bank: 'bamgt', ccy: 'USD' });
console.log(`BAM buys USD at ${r.buy}, sells at ${r.sell} GTQ`);

// The board as it stood on a past day
const past = await client.bankRates('gt', { bank: 'bamgt', date: '2026-11-15' });
console.log(past.snapshot_date, past.rates.length);
```

## Python

```
import requests

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

## Board rate or official rate?

The Banco de Guatemala rate is the one tax, accounting and customs rules in Guatemala name; nobody transacts at it. BAM's board is the price a customer actually gets. The API puts both on every row: `official` is the central bank's rate for the same currency and `vs_official_pct` is how far the bank's mid sits from it. Use the board to show customers a real price, compare banks for a remittance, or keep a dated record of what the bank quoted; use the [Banco de Guatemala endpoint](https://allratestoday.com/central-bank-rates-api/banguat/) when a rule asks for the official rate.

## FAQ

### Where do the Banco Agromercantil de Guatemala (BAM) rates come from?

From the bank's own public rates page (https://www.bam.com.gt/), read hourly. AllRatesToday does not change the numbers: each row is the buy and sell price BAM shows, with the mid, the spread and the Banco de Guatemala rate added.

### Are these the official GTQ exchange rates?

No. They are BAM's retail prices for customers. The official rate in Guatemala is the Banco de Guatemala rate, which the API returns as `official` on each row where the central bank has one, and in full from the central-bank endpoint.

### How often is the BAM board updated?

AllRatesToday reads the page every hour. The bank prints no timestamp, so `captured_at` tells you when the rates were read.

### Can I get BAM rates for a past date?

Yes, from 15 November 2026 onward; every day's board is kept permanently. Add `?date=YYYY-MM-DD` for one day: the response is the board captured that day, or the nearest earlier day within five days, with `date_requested` and `snapshot_date` added. For a range, `/history?ccy=USD&from=…&to=…` returns one row per day as JSON, CSV, XML or XLSX on paid plans.

### Do I need an API key?

Yes. Commercial bank boards need an API key; any plan works, the free key included, and each call counts against the plan. Public pages or widgets that show the rates need a visible link to allratestoday.com.

## Banco Agromercantil de Guatemala (BAM) rates, as JSON

Free API key, hourly board captures, the official rate alongside.

 [Get your free API key](https://allratestoday.com/register/)

## Related

- [Banco Agromercantil de Guatemala (BAM) live board rates](https://allratestoday.com/bank-exchange-rate-api/gt/bamgt/)
- [All banks in Guatemala side by side](https://allratestoday.com/bank-exchange-rate-api/gt/)
- [Banco de Guatemala official rates API](https://allratestoday.com/central-bank-rates-api/banguat/)
- [Banco CHN (Crédito Hipotecario Nacional) exchange rate API guide](https://allratestoday.com/blog/banco-chn-credito-hipotecario-nacional-exchange-rate-api/)
- [Banco Ficohsa Guatemala exchange rate API guide](https://allratestoday.com/blog/banco-ficohsa-guatemala-exchange-rate-api/)
- [Banrural Guatemala exchange rate API guide](https://allratestoday.com/blog/banrural-guatemala-exchange-rate-api/)
- [Every bank exchange rate API guide, by country](https://allratestoday.com/blog/bank-exchange-rate-api-guides/)
- [Commercial bank rates API: every bank and country](https://allratestoday.com/bank-exchange-rate-api/)