Retrieve up-to-date Kolkata Gold 18k (KOLK-18k) Historical Prices using this API

Introduction

In the ever-evolving landscape of precious metals trading, the ability to retrieve up-to-date historical prices for Gold (XAU) is crucial for investors, traders, and developers alike. The Metals-API provides a robust solution for accessing real-time and historical data on various metals, including 18k Gold (KOLK-18k). This blog post delves into the intricacies of the Metals-API, exploring its features, capabilities, and how developers can leverage it to build innovative applications that enhance trading strategies and market analysis.

About Gold (XAU)

Gold has long been a symbol of wealth and stability, serving as a hedge against inflation and economic uncertainty. In recent years, the digital transformation of precious metals trading has opened new avenues for data analytics and market insights. With the integration of technology in trading, investors can now access real-time data, enabling them to make informed decisions based on current market conditions.

The Metals-API stands at the forefront of this transformation, offering developers the tools needed to innovate in price discovery and trading strategies. By utilizing the API, developers can create applications that provide insights into market trends, historical price movements, and fluctuations in Gold prices, thereby enhancing the trading experience.

API Description

The Metals-API is a powerful tool that allows users to access real-time and historical data for various metals, including Gold, Silver, Platinum, and Palladium. The API is designed with innovation in mind, enabling developers to build next-generation applications that can analyze market trends, track price movements, and provide insights into trading strategies.

With the Metals-API, developers can access a wide range of features, including the ability to retrieve the latest rates, historical prices, and fluctuations in metal prices. This API empowers users to harness the power of data analytics, enabling them to make informed decisions based on accurate and timely information.

For more detailed information on how to utilize the API, refer to the Metals-API Documentation.

Key Features and Endpoints

The Metals-API offers a variety of endpoints that provide different functionalities, each designed to meet the needs of developers and traders. Below, we explore some of the key features and their potential applications.

Latest Rates Endpoint

The Latest Rates Endpoint is a vital feature that allows users to retrieve real-time exchange rate data for various metals. Depending on the subscription plan, this endpoint can return data updated every 60 minutes, every 10 minutes, or even more frequently. This feature is essential for traders who need to stay updated on market conditions and make timely decisions.

{
"success": true,
"timestamp": 1782260083,
"base": "USD",
"date": "2026-06-24",
"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

The Historical Rates Endpoint allows users to access historical exchange rates for most currencies dating back to 2019. By appending a specific date in the format YYYY-MM-DD, developers can query the Metals-API for historical rates, making it an invaluable tool for analyzing past market trends and price movements.

{
"success": true,
"timestamp": 1782173683,
"base": "USD",
"date": "2026-06-23",
"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 users to retrieve real-time bid and ask prices for metals. This information is crucial for traders looking to execute orders at the best possible prices. Depending on the subscription plan, this endpoint provides insights into the current market spread, helping traders make informed decisions.

{
"success": true,
"timestamp": 1782260083,
"base": "USD",
"date": "2026-06-24",
"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"
}

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 or metals.

{
"success": true,
"query": {
"from": "USD",
"to": "XAU",
"amount": 1000
},
"info": {
"timestamp": 1782260083,
"rate": 0.000482
},
"result": 0.482,
"unit": "troy ounces"
}

Time-Series Endpoint

The Time-Series Endpoint allows users to query the API for daily historical rates between two dates of their choice. This feature is essential for traders looking to analyze trends over specific periods, providing insights into price movements and market behavior.

{
"success": true,
"timeseries": true,
"start_date": "2026-06-17",
"end_date": "2026-06-24",
"base": "USD",
"rates": {
"2026-06-17": {
"XAU": 0.000485,
"XAG": 0.03825,
"XPT": 0.000915
},
"2026-06-19": {
"XAU": 0.000483,
"XAG": 0.0382,
"XPT": 0.000913
},
"2026-06-24": {
"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. By tracking rate changes between two dates, traders can gain insights into market volatility and make informed decisions based on historical data.

{
"success": true,
"fluctuation": true,
"start_date": "2026-06-17",
"end_date": "2026-06-24",
"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"
}

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

The OHLC Price Endpoint allows users to query the API for the open, high, low, and close prices for a specific time period. This data is essential for traders who rely on candlestick patterns and other technical analysis tools to make trading decisions.

{
"success": true,
"timestamp": 1782260083,
"base": "USD",
"date": "2026-06-24",
"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"
}

Historical LME Endpoint

The Historical LME Endpoint provides access to historical rates for LME symbols dating back to 2008. This endpoint is particularly useful for traders who are interested in the London Metal Exchange prices and want to analyze long-term trends.

{
"success": true,
"timestamp": 1782173683,
"base": "USD",
"date": "2026-06-23",
"rates": {
"XAU": 0.000485,
"XAG": 0.03825,
"XPT": 0.000915,
"XPD": 0.000748
},
"unit": "per troy ounce"
}

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 integrate specific metals into their applications.

Conclusion

In conclusion, the Metals-API offers a comprehensive suite of tools for developers and traders looking to access real-time and historical data for Gold and other precious metals. By leveraging the various endpoints, users can gain insights into market trends, track price movements, and make informed trading decisions. The API's capabilities, including the Latest Rates, Historical Rates, Bid and Ask, and OHLC Price endpoints, empower developers to create innovative applications that enhance the trading experience.

As the digital transformation of precious metals trading continues, the Metals-API stands out as a vital resource for those seeking to harness the power of data analytics and market insights. For more information on how to get started, visit the Metals-API Website and explore the Metals-API Documentation for detailed guidance on implementation and usage.