Get Kolkata Gold 18k (KOLK-18k) prices using this API

In the ever-evolving landscape of precious metals trading, the demand for accurate and real-time data has never been greater. For developers and traders alike, accessing reliable information on gold prices is crucial for making informed decisions. This blog post delves into the capabilities of the Metals-API, focusing specifically on how to obtain Kolkata Gold 18k (KOLK-18k) prices through this innovative API.

Understanding Gold (XAU) in Today's Market

Gold, represented by the symbol XAU, is not just a commodity; it is a digital asset that has transformed the financial landscape. The digital transformation in precious metals has led to a surge in data analytics and market insights, allowing traders to make decisions based on real-time information. The integration of technology in trading has paved the way for innovative price discovery methods, enabling users to track fluctuations and trends with unprecedented accuracy.

As the world moves towards digital asset solutions, the importance of having access to real-time gold prices cannot be overstated. The Metals-API provides developers with the tools necessary to build next-generation applications that can leverage this data for trading, investment, and analysis purposes.

Metals-API Overview

The Metals-API is a powerful JSON API that offers comprehensive access to precious metal prices, including gold, silver, platinum, and palladium. With a focus on innovation and technological advancement, this API empowers developers to create applications that can respond to market changes in real-time.

One of the standout features of the Metals-API is its ability to provide real-time exchange rate data, updated frequently based on the user's subscription plan. This capability is essential for traders who need to stay ahead of market trends and fluctuations.

Key Features of Metals-API

The Metals-API offers a variety of endpoints that cater to different needs, each designed to enhance the user experience and provide valuable insights into the precious metals market:

• Latest Rates Endpoint: This endpoint returns real-time exchange rate data for precious metals, updated every 60 minutes, every 10 minutes, or even more frequently, depending on the subscription plan.
• Historical Rates Endpoint: Users can access historical rates dating back to 2019, allowing for in-depth analysis of price trends over time.
• Bid and Ask Endpoint: This feature provides real-time bid and ask prices, crucial for traders looking to make informed buying and selling decisions.
• Convert Endpoint: The API includes a currency conversion feature, enabling users to convert amounts between different metals or to/from USD.
• Time-Series Endpoint: Users can query the API for daily historical rates between two specified dates, facilitating trend analysis.
• Fluctuation Endpoint: This endpoint allows users to track how metal prices fluctuate on a day-to-day basis, providing insights into market volatility.
• Carat Endpoint: Users can retrieve information about gold rates by carat, which is particularly useful for jewelers and consumers.
• Lowest/Highest Price Endpoint: This feature allows users to query the API for the lowest and highest prices over a specified period.
• Open/High/Low/Close (OHLC) Price Endpoint: Users can access detailed OHLC data for specific time periods, essential for technical analysis.
• Historical LME Endpoint: This endpoint provides access to historical rates for LME symbols, dating back to 2008.
• API Key: Each user is provided with a unique API key that must be included in requests to authenticate access.
• API Response: The API delivers exchange rates relative to USD by default, ensuring consistency in data interpretation.
• Available Endpoints: The Metals-API includes 14 different endpoints, each offering unique functionalities tailored to user needs.
• Supported Symbols Endpoint: This endpoint provides a constantly updated list of all available currencies and metals.
• News Endpoint: Users can retrieve the latest news articles related to various metals, keeping them informed about market developments.

API Endpoint Examples and Responses

To illustrate the capabilities of the Metals-API, let’s explore some example responses from various endpoints:

Latest Rates Endpoint

The Latest Rates Endpoint provides real-time exchange rates for all available metals. Here’s an example response:

{
"success": true,
"timestamp": 1771027690,
"base": "USD",
"date": "2026-02-14",
"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"
}

This response indicates the current exchange rates for various metals, with gold (XAU) priced at 0.000482 per troy ounce.

Historical Rates Endpoint

The Historical Rates Endpoint allows users to access past exchange rates. Here’s an example:

{
"success": true,
"timestamp": 1770941290,
"base": "USD",
"date": "2026-02-13",
"rates": {
"XAU": 0.000485,
"XAG": 0.03825,
"XPT": 0.000915,
"XPD": 0.000748
},
"unit": "per troy ounce"
}

This response shows the exchange rates for gold and other metals on a specific date, allowing for historical analysis.

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": "2026-02-07",
"end_date": "2026-02-14",
"base": "USD",
"rates": {
"2026-02-07": {
"XAU": 0.000485,
"XAG": 0.03825,
"XPT": 0.000915
},
"2026-02-09": {
"XAU": 0.000483,
"XAG": 0.0382,
"XPT": 0.000913
},
"2026-02-14": {
"XAU": 0.000482,
"XAG": 0.03815,
"XPT": 0.000912
}
},
"unit": "per troy ounce"
}

This endpoint is particularly useful for analyzing trends over time, as it provides daily rates for a specified range.

Convert Endpoint

The Convert Endpoint allows users to convert amounts between different metals or to/from USD. Here’s an example:

{
"success": true,
"query": {
"from": "USD",
"to": "XAU",
"amount": 1000
},
"info": {
"timestamp": 1771027690,
"rate": 0.000482
},
"result": 0.482,
"unit": "troy ounces"
}

This response indicates that 1000 USD is equivalent to 0.482 troy ounces of gold, providing a straightforward conversion for users.

Fluctuation Endpoint

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

{
"success": true,
"fluctuation": true,
"start_date": "2026-02-07",
"end_date": "2026-02-14",
"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"
}

This endpoint provides valuable insights into how prices have changed over a specified period, which can inform trading strategies.

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

The OHLC Price Endpoint provides detailed price data for specific time periods. Here’s an example:

{
"success": true,
"timestamp": 1771027690,
"base": "USD",
"date": "2026-02-14",
"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"
}

This response provides a comprehensive view of the price movements for gold and other metals, essential for traders performing technical analysis.

Bid/Ask Endpoint

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

{
"success": true,
"timestamp": 1771027690,
"base": "USD",
"date": "2026-02-14",
"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"
}

This endpoint is crucial for traders looking to understand the current market conditions and make informed decisions based on bid and ask prices.

Conclusion

The Metals-API is an invaluable resource for developers and traders seeking to access real-time data on precious metals, including Kolkata Gold 18k (KOLK-18k). With its extensive range of endpoints, the API provides the tools necessary for effective trading, analysis, and decision-making. By leveraging the capabilities of the Metals-API, users can gain insights into market trends, track fluctuations, and make informed decisions based on accurate data.

For more information on how to implement the Metals-API in your applications, refer to the Metals-API Documentation and explore the Metals-API Supported Symbols for a comprehensive list of available metals. By integrating this powerful API into your trading strategies, you can stay ahead in the competitive world of precious metals trading.