Home
Blog
Access Real-Time & Historical Top 40 USD Net TR Historical Data for Research Purposes Using Indices-API

Access Real-Time & Historical Top 40 USD Net TR Historical Data for Research Purposes Using Indices-API

Access Real-Time & Historical Top 40 USD Net TR Historical Data for Research Purposes Using Indices-API

Access Real-Time & Historical Top 40 USD Net TR Historical Data for Research Purposes Using Indices-API

In today's fast-paced financial landscape, having access to real-time and historical index data is crucial for developers and analysts alike. The Indices-API provides a robust solution for accessing both real-time and historical rates for various indices, including the top 40 USD Net Total Return (TR) indices. This blog post will guide you through the process of accessing this valuable data, detailing the capabilities of the API, step-by-step instructions, example endpoints, and sample API calls.

Indices-API Information

The Indices-API is designed to empower developers with innovative tools for accessing financial data. It offers a comprehensive suite of endpoints that allow users to retrieve real-time exchange rates, historical data, and perform currency conversions. With the ability to access data updated every few minutes, developers can build next-generation applications that leverage real-time insights for trading, analysis, and research purposes.

For more information, you can visit the Indices-API Documentation, which provides detailed insights into the API's capabilities, usage, and best practices.

Key Features and Endpoints

The Indices-API offers several key features that enhance its usability and functionality:

  • Latest Rates Endpoint: This endpoint provides real-time exchange rate data for various indices, updated based on your subscription plan. Depending on the plan, updates can occur every 60 minutes, every 10 minutes, or even more frequently.
  • Historical Rates Endpoint: Access historical rates for most currencies dating back to 1999. You can query historical rates by appending a specific date in the required format.
  • Convert Endpoint: This feature allows you to convert any amount from one currency to another, facilitating seamless financial transactions and analyses.
  • Time-Series Endpoint: Query the API for daily historical rates between two dates of your choice, enabling comprehensive trend analysis.
  • Fluctuation Endpoint: Retrieve information about how currencies fluctuate on a day-to-day basis, which is essential for understanding market dynamics.
  • Open/High/Low/Close (OHLC) Price Endpoint: This endpoint provides the open, high, low, and close prices for a specific time period, crucial for technical analysis.
  • API Key: Your unique API key is required for authentication and must be included in the API request.
  • API Response: The API delivers exchange rates relative to USD by default, with all data returned in a structured JSON format.
  • Available Endpoints: The API includes multiple endpoints, each providing different functionalities to cater to various user needs.
  • Supported Symbols Endpoint: This endpoint returns a constantly updated list of all available currencies and indices.

Accessing Real-Time and Historical Data

To access real-time and historical data using the Indices-API, follow these steps:

Step 1: Obtain Your API Key

First, you need to sign up on the Indices-API website to obtain your unique API key. This key will be used to authenticate your requests.

Step 2: Familiarize Yourself with the Endpoints

Understanding the available endpoints is crucial for effective data retrieval. The Symbols List provides a comprehensive overview of all supported indices and their specifications.

Step 3: Make API Calls

Using your API key, you can now make calls to the various endpoints. Below are examples of how to access real-time and historical data:

Latest Rates Endpoint

To get real-time exchange rates for all available indices, use the following endpoint:

GET https://api.indices-api.com/latest?access_key=YOUR_API_KEY

Example Response:

{
"success": true,
"timestamp": 1765844837,
"base": "USD",
"date": "2025-12-16",
"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

To access historical exchange rates for any date since 1999, use the following format:

GET https://api.indices-api.com/historical?access_key=YOUR_API_KEY&date=YYYY-MM-DD

Example Response:

{
"success": true,
"timestamp": 1765758437,
"base": "USD",
"date": "2025-12-15",
"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

To retrieve exchange rates for a specific time period, use the time-series endpoint:

GET https://api.indices-api.com/timeseries?access_key=YOUR_API_KEY&start_date=YYYY-MM-DD&end_date=YYYY-MM-DD

Example Response:

{
"success": true,
"timeseries": true,
"start_date": "2025-12-09",
"end_date": "2025-12-16",
"base": "USD",
"rates": {
"2025-12-09": {
"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
},
"2025-12-11": {
"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
},
"2025-12-16": {
"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

To convert any amount from one index to another, use the convert endpoint:

GET https://api.indices-api.com/convert?access_key=YOUR_API_KEY&from=USD&to=DOW&amount=1000

Example Response:

{
"success": true,
"query": {
"from": "USD",
"to": "DOW",
"amount": 1000
},
"info": {
"timestamp": 1765844837,
"rate": 0.00029
},
"result": 0.29,
"unit": "per index"
}
Fluctuation Endpoint

To track rate fluctuations between two dates, use the fluctuation endpoint:

GET https://api.indices-api.com/fluctuation?access_key=YOUR_API_KEY&start_date=YYYY-MM-DD&end_date=YYYY-MM-DD

Example Response:

{
"success": true,
"fluctuation": true,
"start_date": "2025-12-09",
"end_date": "2025-12-16",
"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

To get OHLC data for a specific time period, use the following endpoint:

GET https://api.indices-api.com/ohlc?access_key=YOUR_API_KEY&date=YYYY-MM-DD

Example Response:

{
"success": true,
"timestamp": 1765844837,
"base": "USD",
"date": "2025-12-16",
"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

To get current bid and ask prices for indices, use the bid/ask endpoint:

GET https://api.indices-api.com/bidask?access_key=YOUR_API_KEY

Example Response:

{
"success": true,
"timestamp": 1765844837,
"base": "USD",
"date": "2025-12-16",
"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

The Indices-API offers a powerful and flexible solution for accessing real-time and historical index data, enabling developers to create innovative applications that leverage financial insights. By following the steps outlined in this blog post, you can effectively utilize the API to access the data you need for research, analysis, and application development.

With features such as the Latest Rates Endpoint, Historical Rates Endpoint, and various conversion and fluctuation tools, the Indices-API stands out as a comprehensive resource for financial data. For further details, refer to the Indices-API Documentation and explore the Symbols List to maximize your use of this powerful API.

As you integrate the Indices-API into your projects, consider the various use cases and applications that can benefit from real-time and historical data. Whether you are developing trading algorithms, financial analysis tools, or market research applications, the Indices-API provides the data you need to succeed.

Ready to use Indices-API?

Try it now!

Search

Recent Posts