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Comparing Jakarta Composite vs IDX30 with Indices-API Fluctuation Data for Market Insights

Comparing Jakarta Composite vs IDX30 with Indices-API Fluctuation Data for Market Insights

Comparing Jakarta Composite vs IDX30 with Indices-API Fluctuation Data for Market Insights

Introduction

In the fast-paced world of financial markets, having access to real-time data is crucial for making informed decisions. This blog post delves into the comparison of two significant indices: Jakarta Composite and IDX30, utilizing the powerful capabilities of the Indices-API. By leveraging the fluctuation data provided by the API, developers can gain valuable insights into market trends and performance metrics. We will explore the features of the Indices-API, its endpoints, and how to effectively use this data to compare these two indices.

Understanding Indices-API

API Description

The Indices-API is a cutting-edge tool designed for developers seeking to integrate real-time index data into their applications. This API offers a comprehensive suite of features that empower users to access and analyze market data efficiently. With its innovative design, the Indices-API allows for seamless integration into various applications, enabling developers to create next-generation financial tools that can adapt to the dynamic nature of the market.

Key Features and Endpoints

The Indices-API provides several endpoints that cater to different data needs:

  • Latest Rates Endpoint: This endpoint delivers real-time exchange rate data, updated based on your subscription plan—whether every 60 minutes, 10 minutes, or even more frequently. This feature is essential for developers needing up-to-the-minute information.
  • Historical Rates Endpoint: Access historical rates for most currencies dating back to October 2024. By appending a specific date in the required format, users can retrieve past data to analyze trends over time.
  • Convert Endpoint: This endpoint allows for the conversion of any amount from one currency to another, facilitating easy financial calculations and comparisons.
  • Time-Series Endpoint: Users can query the API for daily historical rates between two chosen dates, providing a comprehensive view of market movements over time.
  • Fluctuation Endpoint: This feature enables users to track how currencies fluctuate on a day-to-day basis, offering insights into market volatility.
  • Open/High/Low/Close (OHLC) Price Endpoint: Retrieve the open, high, low, and close prices for indices, which are critical for technical analysis.
  • API Key: Each user is assigned a unique API key that must be included in requests to authenticate access to the data.
  • API Response: The API delivers exchange rates relative to USD by default, ensuring consistency in data interpretation.
  • Supported Symbols Endpoint: This constantly updated endpoint provides a list of all available currencies, ensuring users have access to the latest information.

List of Symbols

The API supports a diverse range of index symbols. For a complete list of all supported symbols and their specifications, refer to the Symbols page.

API Endpoint Examples and Responses

Latest Rates Endpoint

The Latest Rates Endpoint allows users to get real-time exchange rates for all available indices. Here’s an example response:

{
"success": true,
"timestamp": 1778547089,
"base": "USD",
"date": "2026-05-12",
"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"
}

This response provides the latest rates for various indices, allowing developers to quickly assess market conditions.

Historical Rates Endpoint

Accessing historical exchange rates is vital for trend analysis. Here’s an example response:

{
"success": true,
"timestamp": 1778460689,
"base": "USD",
"date": "2026-05-11",
"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"
}

This data allows developers to analyze past performance and identify trends that may influence future market behavior.

Time-Series Endpoint

The Time-Series Endpoint provides exchange rates for a specific time period. Here’s an example response:

{
"success": true,
"timeseries": true,
"start_date": "2026-05-05",
"end_date": "2026-05-12",
"base": "USD",
"rates": {
"2026-05-05": {
"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
},
"2026-05-07": {
"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
},
"2026-05-12": {
"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"
}

This endpoint is particularly useful for developers looking to visualize trends over time, allowing for deeper market analysis.

Convert Endpoint

The Convert Endpoint allows users to convert amounts between currencies. Here’s an example response:

{
"success": true,
"query": {
"from": "USD",
"to": "DOW",
"amount": 1000
},
"info": {
"timestamp": 1778547089,
"rate": 0.00029
},
"result": 0.29,
"unit": "per index"
}

This functionality is essential for developers needing to perform currency conversions in their applications.

Fluctuation Endpoint

The Fluctuation Endpoint tracks rate fluctuations between two dates. Here’s an example response:

{
"success": true,
"fluctuation": true,
"start_date": "2026-05-05",
"end_date": "2026-05-12",
"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"
}

This endpoint is invaluable for understanding market volatility and making predictions based on historical data.

OHLC (Open/High/Low/Close) Endpoint

The OHLC Endpoint provides data for a specific time period. Here’s an example response:

{
"success": true,
"timestamp": 1778547089,
"base": "USD",
"date": "2026-05-12",
"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"
}

This data is essential for traders and analysts who rely on technical analysis to make informed decisions.

Bid/Ask Endpoint

The Bid/Ask Endpoint provides current bid and ask prices for indices. Here’s an example response:

{
"success": true,
"timestamp": 1778547089,
"base": "USD",
"date": "2026-05-12",
"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"
}

This endpoint is crucial for traders who need to understand the current market conditions and make quick decisions.

Creative Comparison Aspects

When comparing the Jakarta Composite and IDX30 indices, several creative angles can be considered:

  • Innovation potential and technological capabilities: Both indices represent significant segments of the Indonesian market, but their technological integration and data accessibility can vary. The Indices-API provides a robust framework for accessing real-time data, which can enhance the analytical capabilities of developers.
  • Developer experience and API design philosophy: The ease of use of the Indices-API can significantly impact how developers interact with the data. A well-designed API can streamline the integration process, making it easier to build applications that leverage market data.
  • Integration possibilities and ecosystem compatibility: Understanding how each index can be integrated into existing financial systems is crucial. The Indices-API's flexibility allows for seamless integration with various platforms, enhancing the overall user experience.
  • Future potential and scalability: As markets evolve, the ability to scale applications and adapt to new data sources is vital. The Indices-API is designed to accommodate future growth, ensuring that developers can continue to build innovative solutions.
  • Technical architecture and design patterns: Analyzing the underlying architecture of the Indices-API can provide insights into its performance and reliability. Understanding these patterns can help developers optimize their applications for better performance.
  • Developer tools and resources: The availability of comprehensive documentation and support resources can greatly enhance the developer experience. The Indices-API Documentation is a valuable resource for developers looking to maximize their use of the API.

Conclusion

In conclusion, comparing the Jakarta Composite and IDX30 indices using the Indices-API's fluctuation data provides valuable insights into market trends and performance metrics. By leveraging the various endpoints offered by the API, developers can access real-time and historical data, enabling them to make informed decisions. The comprehensive features of the Indices-API, including the Latest Rates, Historical Rates, and Fluctuation Endpoints, empower developers to build robust applications that can adapt to the ever-changing financial landscape.

For those looking to dive deeper into the capabilities of the Indices-API, exploring the documentation and the symbols list will provide further insights into how to effectively utilize this powerful tool. As the financial markets continue to evolve, the importance of real-time data and innovative solutions will only grow, making the Indices-API an essential resource for developers in the financial sector.

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