Obtain Kolkata Gold 18k (KOLK-18k) Historical Prices through this API

Introduction

In the world of precious metals trading, obtaining accurate historical prices is crucial for investors, traders, and analysts alike. One of the most sought-after metals is Gold, represented by the symbol XAU. With the rise of digital transformation in financial markets, accessing real-time and historical data has become easier than ever, thanks to innovative solutions like the Metals-API. This blog post will explore how to obtain Kolkata Gold 18k (KOLK-18k) historical prices through the Metals-API, delving into its features, capabilities, and practical applications for developers.

About Gold (XAU)

Gold has always been a symbol of wealth and stability, making it a preferred asset for investors. The digital transformation in precious metals trading has opened new avenues for data analytics and market insights. With the integration of technology in trading, investors can now leverage real-time data to make informed decisions. The Metals-API provides a robust platform for accessing gold prices, enabling developers to create applications that offer innovative price discovery and digital asset solutions.

Digital Transformation in Precious Metals

The precious metals market is undergoing a significant digital transformation. Traditional methods of trading and price discovery are being replaced by advanced technologies that allow for real-time data access and analytics. The Metals-API stands at the forefront of this transformation, providing developers with the tools needed to build next-generation applications that can analyze market trends, track price fluctuations, and provide insights into historical data.

Data Analytics and Market Insights

Data analytics plays a vital role in understanding market dynamics. By utilizing the Metals-API, developers can access a wealth of historical data on gold prices, enabling them to perform in-depth analyses. This data can be used to identify trends, forecast future prices, and make strategic investment decisions. The API's capabilities allow for the aggregation of data over various time frames, providing a comprehensive view of market behavior.

Technology Integration in Trading

Integrating technology into trading processes enhances efficiency and accuracy. The Metals-API offers a suite of endpoints that facilitate seamless integration with existing trading platforms. Developers can utilize the API to fetch real-time and historical prices, making it easier to build applications that respond to market changes instantly. This integration not only improves user experience but also empowers traders with the information they need to make timely decisions.

Innovation in Price Discovery

Price discovery is a critical aspect of trading, and the Metals-API revolutionizes this process by providing access to real-time and historical pricing data. The API's endpoints allow users to retrieve the latest rates, historical rates, and even bid and ask prices, ensuring that traders have the most accurate information at their fingertips. This innovation in price discovery enables traders to optimize their strategies and enhance their trading performance.

Digital Asset Solutions

As the financial landscape evolves, digital asset solutions are becoming increasingly important. The Metals-API provides developers with the tools to create applications that can manage digital assets effectively. By leveraging the API's capabilities, developers can build solutions that track gold prices, convert currencies, and analyze market trends, all within a single platform.

API Description

The Metals-API is a powerful tool that provides real-time and historical data for various metals, including gold, silver, platinum, and palladium. With its innovative approach to data delivery, the API empowers developers to build applications that can harness the full potential of metals data. The API supports a wide range of functionalities, making it an essential resource for anyone involved in precious metals trading.

Key Features and Endpoints

The Metals-API offers a variety of endpoints, each designed to provide specific functionalities that cater to the needs of developers and traders. Here are some of the key features:

Latest Rates Endpoint

The Latest Rates endpoint provides real-time exchange rate data for precious metals. Depending on your subscription plan, this endpoint can return data updated every 60 minutes or even every 10 minutes. This feature is essential for traders who need to stay updated with the latest market prices.

Historical Rates Endpoint

Accessing historical rates is crucial for analyzing market trends. The Historical Rates endpoint allows users to retrieve historical prices for most currencies dating back to 2019. By appending a specific date to the API request, developers can obtain valuable insights into past market behavior.

Bid and Ask Endpoint

The Bid and Ask endpoint is a powerful feature that enables users 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.

Convert Endpoint

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

Time-Series Endpoint

The Time-Series endpoint enables users to query the API for daily historical rates between two dates of their choice. This functionality is essential for conducting thorough analyses over specific time periods.

Fluctuation Endpoint

Using the Fluctuation endpoint, developers can retrieve information about how currencies fluctuate on a day-to-day basis. This data is crucial for understanding market volatility and making strategic trading decisions.

Carat Endpoint

The Carat endpoint provides information about gold rates by carat. This feature is particularly useful for jewelers and traders dealing with different purities of gold.

Lowest/Highest Price Endpoint

The Lowest/Highest Price endpoint allows users to query the API to get the lowest and highest price for a specified date. This information is valuable for traders looking to identify price extremes.

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

The OHLC Price endpoint provides users with the open, high, low, and close prices for a specific date. This data is essential for technical analysis and understanding market trends.

Historical LME Endpoint

The Historical LME endpoint provides access to historical rates for LME symbols dating back to 2008. This feature is particularly useful for traders dealing with industrial metals.

API Key

Your API Key is a unique identifier that must be included in the API requests to authenticate your access. It is essential for ensuring secure and authorized usage of the API.

API Response

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

Available Endpoints

The Metals-API comes with 14 different endpoints, each providing unique functionalities. Developers can explore these endpoints to find the ones that best suit their needs.

Supported Symbols Endpoint

The Supported Symbols endpoint provides a constantly updated list of all available currencies and metals. This feature is essential for developers looking to ensure they are using the correct symbols in their API requests.

News Endpoint

The News endpoint allows users to retrieve the latest news articles related to various metals. Staying updated with market news is crucial for making informed trading decisions.

API Endpoint Examples and Responses

Understanding the API responses is crucial for effective integration. Below are examples of various API endpoints along with their responses:

Latest Rates Endpoint

Get real-time exchange rates for all available metals.

{
"success": true,
"timestamp": 1766541700,
"base": "USD",
"date": "2025-12-24",
"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

Access historical exchange rates for any date since 1999.

{
"success": true,
"timestamp": 1766455300,
"base": "USD",
"date": "2025-12-23",
"rates": {
"XAU": 0.000485,
"XAG": 0.03825,
"XPT": 0.000915,
"XPD": 0.000748
},
"unit": "per troy ounce"
}

Time-series Endpoint

Get exchange rates for a specific time period.

{
"success": true,
"timeseries": true,
"start_date": "2025-12-17",
"end_date": "2025-12-24",
"base": "USD",
"rates": {
"2025-12-17": {
"XAU": 0.000485,
"XAG": 0.03825,
"XPT": 0.000915
},
"2025-12-19": {
"XAU": 0.000483,
"XAG": 0.0382,
"XPT": 0.000913
},
"2025-12-24": {
"XAU": 0.000482,
"XAG": 0.03815,
"XPT": 0.000912
}
},
"unit": "per troy ounce"
}

Convert Endpoint

Convert any amount from one metal to another or to/from USD.

{
"success": true,
"query": {
"from": "USD",
"to": "XAU",
"amount": 1000
},
"info": {
"timestamp": 1766541700,
"rate": 0.000482
},
"result": 0.482,
"unit": "troy ounces"
}

Fluctuation Endpoint

Track rate fluctuations between two dates.

{
"success": true,
"fluctuation": true,
"start_date": "2025-12-17",
"end_date": "2025-12-24",
"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"
}

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

Get OHLC data for a specific time period.

{
"success": true,
"timestamp": 1766541700,
"base": "USD",
"date": "2025-12-24",
"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"
}

Bid/Ask Endpoint

Get current bid and ask prices for metals.

{
"success": true,
"timestamp": 1766541700,
"base": "USD",
"date": "2025-12-24",
"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"
}

Conclusion

In conclusion, the Metals-API offers a comprehensive solution for obtaining historical prices of Kolkata Gold 18k (KOLK-18k) and other precious metals. By leveraging its innovative features and endpoints, developers can create powerful applications that provide real-time data, historical insights, and market analytics. The API's capabilities empower traders to make informed decisions, optimize their strategies, and stay ahead in the competitive world of precious metals trading. For more information, visit the Metals-API Documentation and explore the Metals-API Supported Symbols for a complete list of available metals. Embrace the future of trading with the Metals-API and unlock the potential of real-time metals data.