Access Real-Time & Historical Cboe UK 100 Historical Rates Using Indices-API

In today's fast-paced financial landscape, having access to real-time and historical index rates is crucial for developers and analysts alike. The Cboe UK 100 (BUK100P) is one of the key indices that reflects the performance of the UK stock market. With the help of the Indices-API, developers can easily access both real-time and historical rates for this index, enabling them to build innovative applications that leverage this data. In this blog post, we will explore how to access these rates using the Indices-API, providing step-by-step instructions, example endpoints, and sample API calls.

About Cboe UK 100 (BUK100P)

The Cboe UK 100 index is a benchmark that tracks the performance of the largest and most liquid companies listed on the London Stock Exchange. This index is essential for investors looking to gauge the overall health of the UK economy and make informed investment decisions. The Indices-API provides a comprehensive suite of tools to access real-time and historical data for the Cboe UK 100, allowing developers to integrate this information into their applications seamlessly.

API Description

The Indices-API is a powerful tool designed to provide developers with real-time and historical index data. With its innovative architecture, the API empowers users to access a wealth of information that can be used to create next-generation financial applications. The API supports various endpoints that cater to different data needs, including real-time rates, historical data, and currency conversions. By leveraging the capabilities of the Indices-API, developers can build applications that provide insights into market trends, track performance, and analyze fluctuations in index values.

For more detailed information, you can refer to the Indices-API Documentation, which outlines all available features and functionalities.

Key Features and Endpoints

The Indices-API offers several key features that make it an invaluable resource for developers working with financial data. Below are some of the most important endpoints and their potential applications:

Latest Rates Endpoint: This endpoint provides real-time exchange rate data for the Cboe UK 100 and other indices. Depending on your subscription plan, the API can return data updated every 60 minutes or every 10 minutes. This allows developers to build applications that require up-to-the-minute information.
Historical Rates Endpoint: Access historical rates for the Cboe UK 100 dating back to 1999. By appending a specific date to the endpoint, developers can retrieve historical data for analysis and reporting.
Convert Endpoint: This feature allows users to convert amounts from one currency to another, which is particularly useful for applications that deal with multiple currencies.
Time-Series Endpoint: Developers can query the API for daily historical rates between two dates of their choice. This is ideal for trend analysis and performance tracking over time.
Fluctuation Endpoint: This endpoint provides insights into how the Cboe UK 100 fluctuates on a day-to-day basis, helping developers understand market volatility.
Open/High/Low/Close (OHLC) Price Endpoint: Retrieve the open, high, low, and close prices for the Cboe UK 100 over a specified time period, which is essential for technical analysis.
API Key: Each user is assigned a unique API key that must be included in API requests to authenticate access.
API Response: The API delivers exchange rates relative to USD by default, providing a consistent basis for comparison.
Supported Symbols Endpoint: This endpoint returns a constantly updated list of all available indices and their specifications, ensuring developers have access to the latest information.

List of Symbols

The Indices-API provides access to a diverse range of index symbols, including the Cboe UK 100. For a complete list of all supported symbols and their specifications, refer to the Indices-API Supported Symbols page.

API Endpoint Examples and Responses

To illustrate how to use the Indices-API effectively, we will provide examples of various endpoints along with their expected responses.

Latest Rates Endpoint

To get real-time exchange rates for the Cboe UK 100, you can use the following endpoint:

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

Example Response:

{
"success": true,
"timestamp": 1764894390,
"base": "USD",
"date": "2025-12-05",
"rates": {
"BUK100P": 0.0125,
"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"
}

This response indicates that the latest rate for the Cboe UK 100 is 0.0125 USD per index.

Historical Rates Endpoint

To access historical rates for a specific date, use the following endpoint:

GET https://api.indices-api.com/historical?date=2025-12-04&access_key=YOUR_API_KEY

Example Response:

{
"success": true,
"timestamp": 1764807990,
"base": "USD",
"date": "2025-12-04",
"rates": {
"BUK100P": 0.0124,
"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"
}

This response shows the historical rate for the Cboe UK 100 on December 4, 2025, which was 0.0124 USD per index.

Time-Series Endpoint

To get exchange rates for a specific time period, use the following endpoint:

GET https://api.indices-api.com/timeseries?start_date=2025-11-28&end_date=2025-12-05&access_key=YOUR_API_KEY

Example Response:

{
"success": true,
"timeseries": true,
"start_date": "2025-11-28",
"end_date": "2025-12-05",
"base": "USD",
"rates": {
"2025-11-28": {
"BUK100P": 0.0124,
"DOW": 0.00028,
"NASDAQ": 0.00038,
"S&P 500": 0.00023
},
"2025-11-30": {
"BUK100P": 0.0125,
"DOW": 0.00029,
"NASDAQ": 0.00039,
"S&P 500": 0.00024
},
"2025-12-05": {
"BUK100P": 0.0125,
"DOW": 0.00029,
"NASDAQ": 0.00039,
"S&P 500": 0.00024
}
},
"unit": "per index"
}

This response provides a time series of rates for the Cboe UK 100 over the specified period, allowing for trend analysis.

Convert Endpoint

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

GET https://api.indices-api.com/convert?from=USD&to=BUK100P&amount=1000&access_key=YOUR_API_KEY

Example Response:

{
"success": true,
"query": {
"from": "USD",
"to": "BUK100P",
"amount": 1000
},
"info": {
"timestamp": 1764894390,
"rate": 0.0125
},
"result": 12.5,
"unit": "per index"
}

This response indicates that 1000 USD converts to 12.5 BUK100P.

Fluctuation Endpoint

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

GET https://api.indices-api.com/fluctuation?start_date=2025-11-28&end_date=2025-12-05&access_key=YOUR_API_KEY

Example Response:

{
"success": true,
"fluctuation": true,
"start_date": "2025-11-28",
"end_date": "2025-12-05",
"base": "USD",
"rates": {
"BUK100P": {
"start_rate": 0.0124,
"end_rate": 0.0125,
"change": 0.0001,
"change_pct": 0.81
}
},
"unit": "per index"
}

This response shows the fluctuation of the Cboe UK 100 between the specified dates, highlighting the change in value.

OHLC (Open/High/Low/Close) Endpoint

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

GET https://api.indices-api.com/ohlc?date=2025-12-05&access_key=YOUR_API_KEY

Example Response:

{
"success": true,
"timestamp": 1764894390,
"base": "USD",
"date": "2025-12-05",
"rates": {
"BUK100P": {
"open": 0.0124,
"high": 0.0125,
"low": 0.0123,
"close": 0.0125
}
},
"unit": "per index"
}

This response provides the open, high, low, and close prices for the Cboe UK 100 on December 5, 2025, which is essential for technical analysis.

Bid/Ask Endpoint

To get current bid and ask prices for the Cboe UK 100, use the following endpoint:

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

Example Response:

{
"success": true,
"timestamp": 1764894390,
"base": "USD",
"date": "2025-12-05",
"rates": {
"BUK100P": {
"bid": 0.0124,
"ask": 0.0125,
"spread": 0.0001
}
},
"unit": "per index"
}

This response provides the current bid and ask prices for the Cboe UK 100, which is crucial for traders looking to make informed decisions.

Conclusion

Accessing real-time and historical rates for the Cboe UK 100 using the Indices-API is a straightforward process that can significantly enhance the capabilities of financial applications. By leveraging the various endpoints available, developers can retrieve essential data for analysis, reporting, and decision-making. The Indices-API not only provides real-time data but also offers historical insights, conversion capabilities, and detailed fluctuation tracking, making it a comprehensive solution for financial data needs.

For more information on how to implement these features, refer to the Indices-API Documentation and explore the Indices-API Supported Symbols for a complete list of available indices. By integrating the Indices-API into your applications, you can unlock the potential of real-time financial data and drive innovation in your projects.

Ready to use Indices-API?

Try it now!

Access Real-Time & Historical Cboe UK 100 Historical Rates Using Indices-API