Access Real-Time & Historical Netherlands Antillean Gulden Rate Analysis Using Indices-API

The Netherlands Antillean Gulden (ANG) is a currency that holds significance in the Caribbean region, particularly in the former Netherlands Antilles. For developers and financial analysts looking to access real-time and historical exchange rates of ANG, the Indices-API provides a robust solution. This blog post will guide you through the capabilities of the Indices-API, detailing how to leverage its features for comprehensive rate analysis.

About Netherlands Antillean Gulden (ANG)

The Netherlands Antillean Gulden is the official currency of the former Netherlands Antilles, which includes several Caribbean islands. Understanding its exchange rate dynamics is crucial for businesses engaged in trade, tourism, and investment in the region. The ANG is pegged to the US dollar, making it essential for developers to access reliable and timely exchange rate data. With the Indices-API, you can seamlessly integrate real-time and historical data into your applications, enabling informed decision-making.

API Description

The Indices-API is designed to provide developers with real-time index data, empowering them to build next-generation applications. This API offers a wide array of functionalities, including access to the latest exchange rates, historical data, and currency conversion capabilities. By utilizing the Indices-API, developers can innovate and create solutions that enhance financial analysis and reporting.

Key Features and Endpoints

The Indices-API boasts several key features that cater to various financial data needs:

Latest Rates Endpoint: Depending on your subscription plan, this endpoint returns real-time exchange rate data updated every 60 minutes, every 10 minutes, or even more frequently. This allows users to stay informed about the latest market movements.
Historical Rates Endpoint: Access historical rates for most currencies dating back to 1999. You can query the API for historical rates by appending a date in the format YYYY-MM-DD, enabling detailed analysis of past trends.
Convert Endpoint: This endpoint allows you to convert any amount from one currency to another, facilitating seamless transactions and financial operations.
Time-Series Endpoint: Query the API for daily historical rates between two dates of your choice. This feature is particularly useful for analyzing trends over specific periods.
Fluctuation Endpoint: Retrieve information about how currencies fluctuate on a day-to-day basis, providing insights into market volatility.
Open/High/Low/Close (OHLC) Price Endpoint: Get the open, high, low, and close prices for a specific time period, essential for technical analysis.
API Key: Your unique API key is required to access the API, ensuring secure and authorized usage.
API Response: Exchange rates are delivered relative to USD by default, with all data returned in a structured format for easy integration.
Supported Symbols Endpoint: Access a constantly updated list of all available currencies, ensuring you have the latest information at your fingertips.

List of Symbols

The API provides access to a diverse range of index symbols. For a complete list of all supported symbols and their specifications, refer to the Indices-API Supported Symbols page.

API Endpoint Examples and Responses

Understanding how to interact with the Indices-API is crucial for effective implementation. Below are examples of various endpoints and their corresponding responses:

Latest Rates Endpoint

Get real-time exchange rates for all available indices:

{
"success": true,
"timestamp": 1783471805,
"base": "USD",
"date": "2026-07-08",
"rates": {
"DOW": 0.00029,
"NASDAQ": 0.00039,
"S&P 500": 0.00024,
"FTSE 100": 0.00058,
"DAX": 0.00448,
"CAC 40": 0.00137,
"NIKKEI 225": 0.0125
},
"unit": "per index"
}

Historical Rates Endpoint

Access historical exchange rates for any date since 1999:

{
"success": true,
"timestamp": 1783385405,
"base": "USD",
"date": "2026-07-07",
"rates": {
"DOW": 0.00028,
"NASDAQ": 0.00038,
"S&P 500": 0.00023,
"FTSE 100": 0.0124,
"DAX": 0.0126,
"CAC 40": 0.0126,
"NIKKEI 225": 0.0126
},
"unit": "per index"
}

Time-series Endpoint

Get exchange rates for a specific time period:

{
"success": true,
"timeseries": true,
"start_date": "2026-07-01",
"end_date": "2026-07-08",
"base": "USD",
"rates": {
"2026-07-01": {
"DOW": 0.00028,
"NASDAQ": 0.00038,
"S&P 500": 0.00023,
"FTSE 100": 0.0124,
"DAX": 0.0126,
"CAC 40": 0.0126,
"NIKKEI 225": 0.0126
},
"2026-07-03": {
"DOW": 0.00029,
"NASDAQ": 0.00039,
"S&P 500": 0.00024,
"FTSE 100": 0.0124,
"DAX": 0.0126,
"CAC 40": 0.0126,
"NIKKEI 225": 0.0126
},
"2026-07-08": {
"DOW": 0.00029,
"NASDAQ": 0.00039,
"S&P 500": 0.00024,
"FTSE 100": 0.0124,
"DAX": 0.0126,
"CAC 40": 0.0126,
"NIKKEI 225": 0.0126
}
},
"unit": "per index"
}

Convert Endpoint

Convert any amount from one commodity to another or to/from USD:

{
"success": true,
"query": {
"from": "USD",
"to": "DOW",
"amount": 1000
},
"info": {
"timestamp": 1783471805,
"rate": 0.00029
},
"result": 0.29,
"unit": "per index"
}

Fluctuation Endpoint

Track rate fluctuations between two dates:

{
"success": true,
"fluctuation": true,
"start_date": "2026-07-01",
"end_date": "2026-07-08",
"base": "USD",
"rates": {
"DOW": {
"start_rate": 0.00028,
"end_rate": 0.00029,
"change": 1.0e-5,
"change_pct": 3.57
},
"NASDAQ": {
"start_rate": 0.00038,
"end_rate": 0.00039,
"change": 1.0e-5,
"change_pct": 2.63
},
"S&P 500": {
"start_rate": 0.0124,
"end_rate": 0.0125,
"change": 0.0001,
"change_pct": 0.81
},
"FTSE 100": {
"start_rate": 0.0124,
"end_rate": 0.0125,
"change": 0.0001,
"change_pct": 0.81
},
"DAX": {
"start_rate": 0.0126,
"end_rate": 0.0126,
"change": 0,
"change_pct": 0
},
"CAC 40": {
"start_rate": 0.0126,
"end_rate": 0.0126,
"change": 0,
"change_pct": 0
},
"NIKKEI 225": {
"start_rate": 0.0126,
"end_rate": 0.0126,
"change": 0,
"change_pct": 0
}
},
"unit": "per index"
}

OHLC (Open/High/Low/Close) Endpoint

Get OHLC data for a specific time period:

{
"success": true,
"timestamp": 1783471805,
"base": "USD",
"date": "2026-07-08",
"rates": {
"DOW": {
"open": 0.00028,
"high": 0.00029,
"low": 0.00027,
"close": 0.00029
},
"NASDAQ": {
"open": 0.00038,
"high": 0.0004,
"low": 0.00037,
"close": 0.00039
},
"S&P 500": {
"open": 0.0124,
"high": 0.0126,
"low": 0.0123,
"close": 0.0125
},
"FTSE 100": {
"open": 0.0124,
"high": 0.0126,
"low": 0.0123,
"close": 0.0125
},
"DAX": {
"open": 0.0126,
"high": 0.0126,
"low": 0.0126,
"close": 0.0126
}
},
"unit": "per index"
}

Bid/Ask Endpoint

Get current bid and ask prices for indices:

{
"success": true,
"timestamp": 1783471805,
"base": "USD",
"date": "2026-07-08",
"rates": {
"DOW": {
"bid": 0.00028,
"ask": 0.00029,
"spread": 1.0e-5
},
"NASDAQ": {
"bid": 0.00038,
"ask": 0.00039,
"spread": 1.0e-5
},
"S&P 500": {
"bid": 0.0124,
"ask": 0.0125,
"spread": 0.0001
},
"FTSE 100": {
"bid": 0.0124,
"ask": 0.0125,
"spread": 0.0001
},
"DAX": {
"bid": 0.0126,
"ask": 0.0126,
"spread": 0
},
"CAC 40": {
"bid": 0.0126,
"ask": 0.0126,
"spread": 0
},
"NIKKEI 225": {
"bid": 0.0126,
"ask": 0.0126,
"spread": 0
}
},
"unit": "per index"
}

Conclusion

In conclusion, the Indices-API offers a powerful suite of tools for accessing real-time and historical exchange rates for the Netherlands Antillean Gulden and other currencies. By utilizing its various endpoints, developers can create applications that provide valuable insights into currency trends, facilitate financial transactions, and enhance market analysis. For further information, refer to the Indices-API Documentation and explore the Indices-API Supported Symbols for a comprehensive understanding of available data. Embrace the potential of real-time index data and transform your financial applications today.

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Access Real-Time & Historical Netherlands Antillean Gulden Rate Analysis Using Indices-API