Get Historical Rate Information for Kolkata Gold 24k (KOLK-24k) using this API

Introduction

Gold, represented by the symbol XAU, has long been a cornerstone of wealth and investment. In today's digital age, the ability to access historical rate information for gold, particularly in markets like Kolkata, is essential for investors and developers alike. The Metals-API provides a robust solution for retrieving real-time and historical data on precious metals, including gold. This blog post will delve into the innovative features of the Metals-API, focusing on how developers can leverage its capabilities to access historical prices and gain insights into market trends.

About Gold (XAU)

Gold has transcended its role as a mere commodity; it has become a digital asset that embodies the intersection of finance and technology. The digital transformation in precious metals trading has opened new avenues for data analytics and market insights. With the integration of technology, traders can now utilize advanced tools for price discovery and market analysis. The Metals-API stands at the forefront of this transformation, offering developers the ability to create next-generation applications that harness real-time metals data.

Digital Transformation in Precious Metals

The rise of digital platforms has revolutionized how investors interact with precious metals. The Metals-API provides a seamless interface for accessing gold prices, allowing developers to build applications that can track price movements, analyze trends, and even automate trading strategies. This digital transformation is not just about convenience; it enhances transparency and accessibility in the market.

Data Analytics and Market Insights

Data analytics plays a crucial role in understanding market dynamics. With the Metals-API, developers can access historical data that dates back to 2019, enabling them to perform in-depth analyses of price trends over time. This capability is invaluable for making informed investment decisions and understanding the factors that influence gold prices.

Technology Integration in Trading

Integrating technology into trading practices allows for more efficient and effective strategies. The Metals-API offers various endpoints that provide real-time and historical data, empowering developers to create applications that can respond to market changes instantly. This integration is essential for traders who need to act quickly in a fast-paced environment.

Innovation in Price Discovery

Price discovery is a fundamental aspect of trading, and the Metals-API enhances this process through its comprehensive data offerings. By providing access to the latest rates, historical prices, and fluctuation data, the API enables developers to build tools that can predict price movements and identify optimal trading opportunities.

Digital Asset Solutions

As gold becomes increasingly recognized as a digital asset, the need for reliable data solutions grows. The Metals-API not only provides access to gold prices but also supports various other metals, making it a versatile tool for developers looking to create comprehensive financial applications.

API Description

The Metals-API is a powerful tool that allows developers to access real-time and historical data for various metals, including gold. Its capabilities are designed to empower developers to build innovative applications that can leverage this data for trading, analysis, and reporting. The API provides a user-friendly interface and extensive documentation, making it easy for developers to integrate its features into their applications.

For more information, you can visit the Metals-API Documentation, which offers detailed guidance on how to use the API effectively.

Key Features and Endpoints

The Metals-API offers a range of endpoints that cater to different needs, from retrieving the latest rates to accessing historical data. Here are some of the key features:

Latest Rates Endpoint

The Latest Rates Endpoint provides real-time exchange rate data for various metals, including gold. Depending on your subscription plan, the API updates this data every 60 minutes or every 10 minutes. This feature is crucial for traders who need to stay informed about current market conditions.

{
"success": true,
"timestamp": 1780359423,
"base": "USD",
"date": "2026-06-02",
"rates": {
"XAU": 0.000482,
"XAG": 0.03815,
"XPT": 0.000912,
"XPD": 0.000744,
"XCU": 0.294118,
"XAL": 0.434783,
"XNI": 0.142857,
"XZN": 0.344828
},
"unit": "per troy ounce"
}

Historical Rates Endpoint

Accessing historical rates is essential for understanding market trends. The Historical Rates Endpoint allows developers to query historical data for most currencies dating back to 2019. By appending a specific date to the API request, users can retrieve valuable insights into past market behavior.

{
"success": true,
"timestamp": 1780273023,
"base": "USD",
"date": "2026-06-01",
"rates": {
"XAU": 0.000485,
"XAG": 0.03825,
"XPT": 0.000915,
"XPD": 0.000748
},
"unit": "per troy ounce"
}

Bid And Ask Endpoint

The Bid and Ask Endpoint is a powerful feature that enables developers to retrieve real-time bid and ask prices for metals. This information is vital for traders looking to make informed decisions based on current market conditions.

{
"success": true,
"timestamp": 1780359423,
"base": "USD",
"date": "2026-06-02",
"rates": {
"XAU": {
"bid": 0.000481,
"ask": 0.000483,
"spread": 2.0e-6
},
"XAG": {
"bid": 0.0381,
"ask": 0.0382,
"spread": 0.0001
},
"XPT": {
"bid": 0.000911,
"ask": 0.000913,
"spread": 2.0e-6
}
},
"unit": "per troy ounce"
}

Convert Endpoint

The Convert Endpoint allows users to convert any amount from one metal to another or to/from USD. This feature is particularly useful for traders who need to quickly assess the value of their holdings in different currencies.

{
"success": true,
"query": {
"from": "USD",
"to": "XAU",
"amount": 1000
},
"info": {
"timestamp": 1780359423,
"rate": 0.000482
},
"result": 0.482,
"unit": "troy ounces"
}

Time-Series Endpoint

The Time-Series Endpoint allows developers to query the API for daily historical rates between two dates of their choice. This feature is essential for analyzing trends over specific periods and making data-driven decisions.

{
"success": true,
"timeseries": true,
"start_date": "2026-05-26",
"end_date": "2026-06-02",
"base": "USD",
"rates": {
"2026-05-26": {
"XAU": 0.000485,
"XAG": 0.03825,
"XPT": 0.000915
},
"2026-05-28": {
"XAU": 0.000483,
"XAG": 0.0382,
"XPT": 0.000913
},
"2026-06-02": {
"XAU": 0.000482,
"XAG": 0.03815,
"XPT": 0.000912
}
},
"unit": "per troy ounce"
}

Fluctuation Endpoint

The Fluctuation Endpoint provides information about how currencies fluctuate on a day-to-day basis. This feature is valuable for traders looking to understand volatility and make strategic decisions based on market movements.

{
"success": true,
"fluctuation": true,
"start_date": "2026-05-26",
"end_date": "2026-06-02",
"base": "USD",
"rates": {
"XAU": {
"start_rate": 0.000485,
"end_rate": 0.000482,
"change": -3.0e-6,
"change_pct": -0.62
},
"XAG": {
"start_rate": 0.03825,
"end_rate": 0.03815,
"change": -0.0001,
"change_pct": -0.26
},
"XPT": {
"start_rate": 0.000915,
"end_rate": 0.000912,
"change": -3.0e-6,
"change_pct": -0.33
}
},
"unit": "per troy ounce"
}

Open/High/Low/Close (OHLC) Price Endpoint

The OHLC Price Endpoint allows developers to query the API for the open, high, low, and close prices for a specific time period. This data is crucial for technical analysis and understanding market trends.

{
"success": true,
"timestamp": 1780359423,
"base": "USD",
"date": "2026-06-02",
"rates": {
"XAU": {
"open": 0.000485,
"high": 0.000487,
"low": 0.000481,
"close": 0.000482
},
"XAG": {
"open": 0.03825,
"high": 0.0383,
"low": 0.0381,
"close": 0.03815
},
"XPT": {
"open": 0.000915,
"high": 0.000918,
"low": 0.00091,
"close": 0.000912
}
},
"unit": "per troy ounce"
}

Lowest/Highest Price Endpoint

The Lowest/Highest Price Endpoint allows users to query the API to get the lowest and highest price for a specific date. This feature is useful for identifying price extremes and making informed trading decisions.

{
"success": true,
"timestamp": 1780359423,
"base": "USD",
"date": "2026-06-02",
"rates": {
"XAU": {
"lowest": 0.000481,
"highest": 0.000487
},
"XAG": {
"lowest": 0.0381,
"highest": 0.0383
},
"XPT": {
"lowest": 0.00091,
"highest": 0.000918
}
},
"unit": "per troy ounce"
}

Historical LME Endpoint

The Historical LME Endpoint provides access to historical rates for LME symbols dating back to 2008. This endpoint allows users to analyze long-term trends in the metals market.

{
"success": true,
"timestamp": 1780273023,
"base": "USD",
"date": "2026-06-01",
"rates": {
"XAU": 0.000485,
"XAG": 0.03825,
"XPT": 0.000915,
"XPD": 0.000748
},
"unit": "per troy ounce"
}

API Key and Response

Your API Key is the unique key that is passed into the API base URL's access_key parameter in order to authenticate your requests. This key is essential for accessing the API's features and ensuring secure communication.

Exchange rates delivered by the Metals-API are by default relative to USD. All data is returned in a structured JSON format, making it easy for developers to parse and utilize the information in their applications.

List of Symbols

The Metals-API provides access to a comprehensive range of metal symbols. For a complete list of all supported symbols and their specifications, refer to the Metals-API Supported Symbols page. This resource is invaluable for developers looking to understand the full scope of available data.

Conclusion

In conclusion, the Metals-API offers a powerful suite of tools for accessing historical and real-time data on gold and other precious metals. With its innovative features, developers can create applications that provide valuable insights into market trends and trading opportunities. By leveraging the API's capabilities, developers can enhance their trading strategies, perform in-depth analyses, and ultimately make more informed decisions in the precious metals market.

For further exploration of the API's features, visit the Metals-API Documentation for detailed guidance on implementation and usage. The ability to access historical rate information for Kolkata Gold 24k (KOLK-24k) and other metals has never been more accessible, thanks to the transformative potential of the Metals-API.