Latin America Trading Calendar API

API ID 13834

Indicates if a date is a trading day for LatAm markets (BYMA, B3, BMV); returns the next trading day, lists annual holidays, and calculates business days between dates

326 ms avg response

API Documentation

Endpoints

Request
The "health" endpoint is designed to provide a real-time status check of the API service, informing users about the operational health of the system. When invoked, it typically returns a JSON response containing key metrics such as server uptime, response time, and the status of critical components (e.g., database connectivity, third-party services). This endpoint is invaluable for developers and system administrators to monitor system reliability and performance, allowing them to implement proactive maintenance, troubleshoot issues, or integrate health checks into automated monitoring solutions.
Endpoint ID: 31797
GET https://zylalabs.com/api/13834/latin+america+trading+calendar+api/31797/health
INPUT PARAMETERS

Free test requests remaining: 3 of 3.

This endpoint does not require any input parameters.

API EXAMPLE RESPONSE
JSON
{
    "status": "ok",
    "version": "0.1.0",
    "uptime_seconds": 1385968.8,
    "timestamp": "2026-10-14T19:50:43.691246+00:00"
}
Health — CODE SNIPPETS

curl --location --request GET 'https://zylalabs.com/api/13834/latin+america+trading+calendar+api/31797/health' --header 'Authorization: Bearer YOUR_API_KEY' 


    
Request
Lists the supported stock exchanges: code, name, country, and timezone. Available to all tiers including free. Use this to discover which markets exist. See /v1/is-trading-day
Endpoint ID: 31798
GET https://zylalabs.com/api/13834/latin+america+trading+calendar+api/31798/list+exchanges
INPUT PARAMETERS

Free test requests remaining: 3 of 3.

This endpoint does not require any input parameters.

API EXAMPLE RESPONSE
JSON
{
    "exchanges": [
        {
            "code": "B3",
            "name": "B3 - Brasil Bolsa Balcão",
            "country": "Brasil",
            "timezone": "America/Sao_Paulo"
        },
        {
            "code": "BMV",
            "name": "Bolsa Mexicana de Valores",
            "country": "México",
            "timezone": "America/Mexico_City"
        },
        {
            "code": "BYMA",
            "name": "Bolsas y Mercados Argentinos",
            "country": "Argentina",
            "timezone": "America/Argentina/Buenos_Aires"
        }
    ]
}
List Exchanges — CODE SNIPPETS

curl --location --request GET 'https://zylalabs.com/api/13834/latin+america+trading+calendar+api/31798/list+exchanges' --header 'Authorization: Bearer YOUR_API_KEY' 


    
Request
Returns whether a given date is a trading day for the specified exchange. Date must be in YYYY-MM-DD format. See /v1/next-trading-day and /v1/holidays.
Endpoint ID: 31799
GET https://zylalabs.com/api/13834/latin+america+trading+calendar+api/31799/is+trading+day
INPUT PARAMETERS

Is Trading Day — Endpoint Features

Object Description
exchange Required Exchange name e.g. BYMA
date Required Date in YYYY-MM-DD format

Free test requests remaining: 3 of 3.


INPUT PARAMETERS

exchange
date
API EXAMPLE RESPONSE
JSON
{
    "exchange": "BYMA",
    "date": "2026-01-15",
    "is_trading_day": true,
    "reason": null,
    "data_available": true,
    "data_quality": {
        "confidence": "low",
        "stale": false,
        "source": "cross_checked"
    }
}
Is Trading Day — CODE SNIPPETS

curl --location --request GET 'https://zylalabs.com/api/13834/latin+america+trading+calendar+api/31799/is+trading+day?exchange=BYMA&date=2026-01-15' --header 'Authorization: Bearer YOUR_API_KEY' 


    
Request
Returns the next trading day for the specified stock exchange, starting from a given date
Endpoint ID: 31800
GET https://zylalabs.com/api/13834/latin+america+trading+calendar+api/31800/next+trading+day
INPUT PARAMETERS

Next Trading Day — Endpoint Features

Object Description
exchange Required Exchange name e.g. BYMA
date Required Date in YYYY-MM-DD format

Free test requests remaining: 3 of 3.


INPUT PARAMETERS

exchange
date
API EXAMPLE RESPONSE
JSON
{
    "exchange": "BYMA",
    "from_date": "2026-01-15",
    "next_trading_day": "2026-01-16",
    "data_available": true,
    "data_quality": {
        "confidence": "low",
        "stale": false,
        "source": "cross_checked"
    }
}
Next Trading Day — CODE SNIPPETS

curl --location --request GET 'https://zylalabs.com/api/13834/latin+america+trading+calendar+api/31800/next+trading+day?exchange=BYMA&date=2026-01-15' --header 'Authorization: Bearer YOUR_API_KEY' 


    
Request
Returns the list of holidays for the specified stock exchange for a given year
Endpoint ID: 31801
GET https://zylalabs.com/api/13834/latin+america+trading+calendar+api/31801/holidays
INPUT PARAMETERS

Holidays — Endpoint Features

Object Description
exchange Required Exchange code: BYMA, B3, or BMV
year Required Calendar year (e.g. 2025)

Free test requests remaining: 3 of 3.


INPUT PARAMETERS

exchange
year
API EXAMPLE RESPONSE
JSON
{
    "exchange": "BYMA",
    "year": 2026,
    "data_available": true,
    "last_verified": "2026-09-17",
    "source": "https://www.byma.com.ar/mercado/calendario-bursatil",
    "holidays": [
        {
            "date": "2026-01-01",
            "name": "Año Nuevo",
            "type": "civil_holiday"
        },
        {
            "date": "2026-02-16",
            "name": "Carnaval",
            "type": "civil_holiday"
        },
        {
            "date": "2026-02-17",
            "name": "Carnaval",
            "type": "civil_holiday"
        },
        {
            "date": "2026-03-23",
            "name": "Día no laborable con fines turísticos",
            "type": "bridge_day"
        },
        {
            "date": "2026-03-24",
            "name": "Día Nacional de la Memoria por la Verdad y la Justicia",
            "type": "civil_holiday"
        },
        {
            "date": "2026-04-02",
            "name": "Día del Veterano y de los Caídos en la Guerra de Malvinas",
            "type": "civil_holiday"
        },
        {
            "date": "2026-04-03",
            "name": "Viernes Santo",
            "type": "civil_holiday"
        },
        {
            "date": "2026-05-01",
            "name": "Día del Trabajador",
            "type": "civil_holiday"
        },
        {
            "date": "2026-05-25",
            "name": "Día de la Revolución de Mayo",
            "type": "civil_holiday"
        },
        {
            "date": "2026-06-15",
            "name": "Paso a la Inmortalidad del General Martín Miguel de Güemes (trasladado)",
            "type": "civil_holiday"
        },
        {
            "date": "2026-07-09",
            "name": "Día de la Independencia",
            "type": "civil_holiday"
        },
        {
            "date": "2026-07-10",
            "name": "Día no laborable con fines turísticos",
            "type": "bridge_day"
        },
        {
            "date": "2026-08-17",
            "name": "Paso a la Inmortalidad del General José de San Martín",
            "type": "civil_holiday"
        },
        {
            "date": "2026-10-12",
            "name": "Día del Respeto a la Diversidad Cultural",
            "type": "civil_holiday"
        },
        {
            "date": "2026-11-06",
            "name": "Día del Bancario",
            "type": "bridge_day"
        },
        {
            "date": "2026-11-23",
            "name": "Día de la Soberanía Nacional (trasladado)",
            "type": "civil_holiday"
        },
        {
            "date": "2026-12-07",
            "name": "Día no laborable con fines turísticos",
            "type": "bridge_day"
        },
        {
            "date": "2026-12-08",
            "name": "Inmaculada Concepción de María",
            "type": "civil_holiday"
        },
        {
            "date": "2026-12-24",
            "name": "Nochebuena",
            "type": "bridge_day"
        },
        {
            "date": "2026-12-25",
            "name": "Navidad",
            "type": "civil_holiday"
        },
        {
            "date": "2026-12-31",
            "name": "Sin rueda ni liquidación (cierre de año)",
            "type": "market_closure"
        }
    ],
    "data_quality": {
        "confidence": "low",
        "stale": false,
        "source": "cross_checked"
    }
}
Holidays — CODE SNIPPETS

curl --location --request GET 'https://zylalabs.com/api/13834/latin+america+trading+calendar+api/31801/holidays?exchange=BYMA&year=2026' --header 'Authorization: Bearer YOUR_API_KEY' 


    
Request
Checks if multiple dates are trading days for the specified stock exchange
Endpoint ID: 31802
POST https://zylalabs.com/api/13834/latin+america+trading+calendar+api/31802/is+batch+trading+day
INPUT PARAMETERS

Is Batch Trading Day — Endpoint Features

Object Description
Request Body Required Json

Free test requests remaining: 3 of 3.


INPUT PARAMETERS

API EXAMPLE RESPONSE
JSON
{
    "results": [
        {
            "id": "1",
            "exchange": "BYMA",
            "date": "2026-05-25",
            "is_trading_day": false,
            "reason": "Día de la Revolución de Mayo",
            "data_available": true,
            "data_quality": {
                "confidence": "low",
                "stale": false,
                "source": "cross_checked"
            },
            "error": null
        },
        {
            "id": "2",
            "exchange": "B3",
            "date": "2026-04-21",
            "is_trading_day": false,
            "reason": "Tiradentes",
            "data_available": true,
            "data_quality": {
                "confidence": "high",
                "stale": false,
                "source": "cross_checked"
            },
            "error": null
        },
        {
            "id": "3",
            "exchange": "BMV",
            "date": "2026-10-14",
            "is_trading_day": true,
            "reason": null,
            "data_available": true,
            "data_quality": {
                "confidence": "high",
                "stale": false,
                "source": "cross_checked"
            },
            "error": null
        }
    ]
}
Is Batch Trading Day — CODE SNIPPETS

curl --location --request POST 'https://zylalabs.com/api/13834/latin+america+trading+calendar+api/31802/is+batch+trading+day' --header 'Authorization: Bearer YOUR_API_KEY' 

--data-raw '{
  "items": [
    {"id": "1", "exchange": "BYMA", "date": "2026-05-25"},
    {"id": "2", "exchange": "B3", "date": "2026-04-21"},
    {"id": "3", "exchange": "BMV", "date": "2026-10-14"}
  ]
}'

    
Request
Calculates the resulting date after adding a number of business days to a given date for the specified exchange
Endpoint ID: 31803
GET https://zylalabs.com/api/13834/latin+america+trading+calendar+api/31803/add+business+days
INPUT PARAMETERS

Add Business Days — Endpoint Features

Object Description
exchange Required Exchange code: BYMA, B3, or BMV
date Required Start date in YYYY-MM-DD format
days Required Number of trading days to add (negative to subtract)

Free test requests remaining: 3 of 3.


INPUT PARAMETERS

exchange
date
days
API EXAMPLE RESPONSE
JSON
{
    "exchange": "BYMA",
    "from_date": "2026-01-07",
    "days": 5,
    "result_date": "2026-01-14",
    "data_quality": [
        {
            "year": 2026,
            "data_available": true,
            "confidence": "low",
            "stale": false,
            "source": "cross_checked"
        }
    ]
}
Add Business Days — CODE SNIPPETS

curl --location --request GET 'https://zylalabs.com/api/13834/latin+america+trading+calendar+api/31803/add+business+days?exchange=BYMA&date=2026-01-07&days=5' --header 'Authorization: Bearer YOUR_API_KEY' 


    
Request
Calculates the number of business days between two dates for the specified stock exchange
Endpoint ID: 31804
GET https://zylalabs.com/api/13834/latin+america+trading+calendar+api/31804/business+days+between
INPUT PARAMETERS

Business Days Between — Endpoint Features

Object Description
exchange Required Exchange code: BYMA, B3, or BMV
from Required Start date in YYYY-MM-DD format
to Required End date in YYYY-MM-DD format

Free test requests remaining: 3 of 3.


INPUT PARAMETERS

exchange
from
to
API EXAMPLE RESPONSE
JSON
{
    "exchange": "BYMA",
    "from_date": "2026-01-01",
    "to_date": "2026-01-31",
    "business_days": 21,
    "data_quality": [
        {
            "year": 2026,
            "data_available": true,
            "confidence": "low",
            "stale": false,
            "source": "cross_checked"
        }
    ]
}
Business Days Between — CODE SNIPPETS

curl --location --request GET 'https://zylalabs.com/api/13834/latin+america+trading+calendar+api/31804/business+days+between?exchange=BYMA&from=2026-01-01&to=2026-01-31' --header 'Authorization: Bearer YOUR_API_KEY' 


    

API Access Key & Authentication

After signing up, every developer is assigned a personal API access key, a unique combination of letters and digits provided to access to our API endpoint. To authenticate with the Latin America Trading Calendar API simply include your bearer token in the Authorization header.

Headers
Header Description
Authorization Required Should be Bearer access_key. See "Your API Access Key" above when you are subscribed.

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Overview

Indicates if a date is a trading day for LatAm markets (BYMA, B3, BMV); returns the next trading day, lists annual holidays, and calculates business days between dates

Latin America Trading Calendar API FAQs

Each endpoint returns specific data related to trading days, holidays, and business days for Latin American stock exchanges. For example, the "Is Trading Day" endpoint indicates whether a given date is a trading day, while the "Holidays" endpoint lists the holidays for a specific exchange and year.

Key fields include "exchange" (exchange code), "date" (specific date), "is_trading_day" (boolean), "next_trading_day" (next trading date), and "holidays" (list of holiday dates). These fields help users understand trading schedules and holiday impacts.

Parameters vary by endpoint. For "Is Trading Day," you need "exchange" and "date." The "Add Business Days" endpoint requires "from_date" and "days." Users can customize requests by specifying the exchange and relevant dates.

The data is sourced from official stock exchanges in Latin America, including BYMA, B3, and BMV. The API maintains data accuracy by regularly updating information based on exchange announcements and verified calendars.

Typical use cases include financial applications that require trading day validation, holiday scheduling for trading strategies, and calculating business days for settlement processes. This data is essential for traders and financial analysts.

If results are partial or empty, users should check the "data_available" field. If false, it indicates that data may not be current or verified. Users can implement fallback logic to handle such cases, like retrying requests or using cached data.

BYMA (Argentina), B3 (Brazil) and BMV (Mexico). Calendar year 2026 is available now; each following year is added once the exchange publishes its official calendar.

Each calendar is cross-checked against an independent secondary source. Every response includes a `data_quality` block (`verification_method`, `confidence`, `last_verified`, `stale`) so you can see how reliable the data is.

`high`: primary and secondary sources agree. `medium`: minor, explained differences, such as half-day closures that civil calendars don’t list. `low`: a known gap in the official source, flagged in the response.

Use `/v1/business-days-between` (both endpoints inclusive) or `/v1/add-business-days` (accepts negative values). To check many dates at once, use the batch endpoint (up to 1,000 per request).

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