Visualize Kolkata Gold 18k (KOLK-18k) Historical Prices using this API

In the world of precious metals, the ability to visualize historical prices is crucial for investors, traders, and analysts alike. One of the most sought-after metals is gold, specifically 18k gold, which is often represented by the symbol KOLK-18k. To effectively track and analyze the historical prices of Kolkata Gold 18k, developers can leverage the powerful capabilities of the Metals-API. This API provides real-time and historical data on various metals, including gold, enabling users to make informed decisions based on accurate market insights.

About Gold (XAU)

Gold has long been a symbol of wealth and a safe haven for investors. With the digital transformation in the precious metals market, the integration of technology has revolutionized how traders access and analyze data. The Metals-API stands at the forefront of this transformation, offering a suite of tools that empower developers to create innovative applications for tracking gold prices.

Data analytics plays a pivotal role in understanding market trends and making predictions. By utilizing the Metals-API, developers can harness the power of data to gain insights into price movements, fluctuations, and historical trends. This information is invaluable for making strategic investment decisions.

Moreover, the integration of technology in trading has led to the emergence of digital asset solutions that facilitate seamless transactions and enhance user experience. The Metals-API provides a robust platform for developers to build applications that cater to the evolving needs of traders and investors in the precious metals market.

Metals-API Capabilities

The Metals-API is designed to provide comprehensive data on precious metals, including gold, silver, platinum, and palladium. With a focus on innovation and technological advancement, this API empowers developers to build next-generation applications that can transform how users interact with metals data.

One of the key features of the Metals-API is its Latest Rates Endpoint, which provides real-time exchange rate data for various metals. Depending on the subscription plan, users can receive updates every 60 minutes or even more frequently. This feature is essential for traders who need to stay informed about the latest market conditions.

For those interested in historical data, the Historical Rates Endpoint allows users to access exchange rates dating back to 2019. By appending a specific date to the API request, developers can retrieve historical prices for gold and other metals, enabling them to analyze trends over time.

The Bid and Ask Endpoint is another powerful feature that provides real-time bid and ask prices for metals. This information is crucial for traders looking to make informed buying and selling decisions. By understanding the current market spread, users can optimize their trading strategies.

Additionally, the Metals-API includes a Convert Endpoint, which allows users to convert amounts between different metals or to/from USD. This feature is particularly useful for traders who deal with multiple currencies and need to quickly assess the value of their assets.

For those interested in tracking price fluctuations, the Fluctuation Endpoint provides insights into how metal prices change over time. By querying the API for specific date ranges, developers can analyze the volatility of gold prices and make predictions about future movements.

The Time-Series Endpoint enables users to query daily historical rates between two chosen dates. This feature is invaluable for conducting in-depth analyses of price trends and understanding the factors that influence market movements.

Moreover, the Metals-API offers an Open/High/Low/Close (OHLC) Price Endpoint that provides detailed information about the opening, high, low, and closing prices for a specific time period. This data is essential for traders who rely on technical analysis to inform their trading decisions.

For those interested in the lowest and highest prices within a specific timeframe, the Lowest/Highest Price Endpoint allows users to query this information easily. This feature can help traders identify key support and resistance levels in the market.

Furthermore, the Carat Endpoint provides information about gold rates by carat, allowing users to understand the value of gold based on its purity. This feature is particularly relevant for jewelers and consumers looking to buy or sell gold jewelry.

The Metals-API also includes a News Endpoint, which allows users to retrieve the latest news articles related to various metals. Staying informed about market developments is crucial for making timely investment decisions.

API Endpoint Examples and Responses

To illustrate the capabilities of the Metals-API, here are some example responses for various endpoints:

Latest Rates Endpoint

Get real-time exchange rates for all available metals:

{
"success": true,
"timestamp": 1774311468,
"base": "USD",
"date": "2026-03-24",
"rates": {
"XAU": 0.000482,
"XAG": 0.03815,
"XPT": 0.000912,
"XPD": 0.000744
},
"unit": "per troy ounce"
}

Historical Rates Endpoint

Access historical exchange rates for any date since 1999:

{
"success": true,
"timestamp": 1774225068,
"base": "USD",
"date": "2026-03-23",
"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": "2026-03-17",
"end_date": "2026-03-24",
"base": "USD",
"rates": {
"2026-03-17": {
"XAU": 0.000485,
"XAG": 0.03825,
"XPT": 0.000915
},
"2026-03-19": {
"XAU": 0.000483,
"XAG": 0.0382,
"XPT": 0.000913
},
"2026-03-24": {
"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": 1774311468,
"rate": 0.000482
},
"result": 0.482,
"unit": "troy ounces"
}

Fluctuation Endpoint

Track rate fluctuations between two dates:

{
"success": true,
"fluctuation": true,
"start_date": "2026-03-17",
"end_date": "2026-03-24",
"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) Endpoint

Get OHLC data for a specific time period:

{
"success": true,
"timestamp": 1774311468,
"base": "USD",
"date": "2026-03-24",
"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": 1774311468,
"base": "USD",
"date": "2026-03-24",
"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

The Metals-API provides a comprehensive solution for developers looking to visualize and analyze historical prices of Kolkata Gold 18k (KOLK-18k) and other precious metals. With its extensive range of endpoints, including real-time rates, historical data, and conversion capabilities, the API empowers users to build innovative applications that enhance trading strategies and investment decisions.

By leveraging the power of data analytics and technology integration, developers can create tools that provide market insights and facilitate informed decision-making. The Metals-API is not just a data source; it is a transformative platform that enables the next generation of applications in the precious metals market.

For more information on how to get started with the Metals-API, refer to the Metals-API Documentation and explore the Metals-API Supported Symbols for a complete list of available metals. Visit the Metals-API Website to learn more about its capabilities and how it can enhance your trading experience.