Fetch Kolkata Silver (KOLK-XAG) Historical Prices using this API

Introduction

In the world of precious metals, Silver (XAG) holds a significant position not only as a valuable asset but also as a crucial component in various industrial applications. With the rise of technology and innovation in manufacturing, the demand for real-time data on silver prices has become essential for developers and businesses alike. This blog post will explore how to fetch Kolkata Silver (KOLK-XAG) historical prices using the Metals-API. We will delve into the capabilities of this API, its endpoints, and how it empowers developers to create next-generation applications that leverage real-time metals data.

About Silver (XAG)

Silver, represented by the symbol XAG, is not only a precious metal but also a key player in various industrial sectors. Its applications range from electronics to solar energy, where it is used in photovoltaic cells. The integration of smart manufacturing technologies has further enhanced the demand for silver, as industries seek to optimize production processes and reduce costs. The digital market analysis of silver prices has become increasingly important, allowing businesses to make informed decisions based on real-time data.

As industries continue to innovate, the role of technology in manufacturing processes cannot be overstated. The use of advanced analytics and supply chain technology enables manufacturers to track silver prices and availability, ensuring that they can respond quickly to market changes. This is where the Metals-API comes into play, providing developers with the tools they need to access historical and real-time silver prices effortlessly.

API Description

The Metals-API is a powerful tool designed for developers who need access to real-time and historical metals data. It offers a wide range of functionalities that can be integrated into applications, enabling users to fetch the latest rates, historical prices, and even perform currency conversions. The API is built with innovation in mind, allowing for seamless integration into various applications, from financial analysis tools to e-commerce platforms.

One of the standout features of the Metals-API is its ability to provide real-time exchange rate data updated at intervals depending on the subscription plan. This means that developers can access the latest silver prices and make informed decisions based on the most current data available. Additionally, the API supports a variety of endpoints that cater to different needs, such as historical rates, bid and ask prices, and fluctuation tracking.

Key Features and Endpoints

The Metals-API offers several key features that enhance its usability and functionality:

• Latest Rates Endpoint: This endpoint provides real-time exchange rate data for silver and other metals. Depending on your subscription plan, the API can return data updated every 60 minutes or every 10 minutes, ensuring that you have access to the most current prices.
• Historical Rates Endpoint: Historical rates are available for most currencies dating back to 2019. You can query the Metals-API for historical rates by appending a date to the endpoint, allowing you to analyze price trends over time.
• Bid And Ask Endpoint: This powerful feature enables you to retrieve real-time bid and ask prices for silver, providing insights into market dynamics and helping traders make informed decisions.
• Convert Endpoint: The Metals-API includes a currency conversion endpoint, allowing you to convert any amount from one metal to another or to/from USD. This is particularly useful for businesses operating in multiple currencies.
• Time-Series Endpoint: This endpoint allows you to query the API for daily historical rates between two dates of your choice. This feature is invaluable for analyzing price movements and making predictions based on historical data.
• Fluctuation Endpoint: Using this endpoint, you can track how silver prices fluctuate on a day-to-day basis, providing insights into market volatility and trends.
• Carat Endpoint: This feature allows you to retrieve information about gold rates by carat, which can be useful for jewelers and traders dealing in gold.
• Lowest/Highest Price Endpoint: This endpoint enables you to query the API to get the lowest and highest price of silver for a specified date, helping traders identify market extremes.
• Open/High/Low/Close (OHLC) Price Endpoint: This endpoint provides open, high, low, and close prices for silver, which are essential for technical analysis and trading strategies.
• Historical LME Endpoint: Access historical rates for LME symbols dating back to 2008, allowing for comprehensive analysis of market trends.
• API Key: Your API Key is a unique identifier that must be included in your requests to authenticate your access to the API.
• API Response: The Metals-API returns exchange rates relative to USD by default, ensuring consistency in data interpretation.
• Available Endpoints: The API comes with 14 endpoints, each providing different functionalities tailored to meet the needs of developers.
• Supported Symbols Endpoint: This endpoint returns all available currencies and metals, allowing developers to stay updated on the latest symbols.
• News Endpoint: Retrieve the latest news articles related to various metals, keeping you informed about market developments.

API Endpoint Examples and Responses

Understanding how to interact with the Metals-API is crucial for developers looking to integrate its functionalities into their applications. Below are examples of various API endpoints and their corresponding responses:

Latest Rates Endpoint

Get real-time exchange rates for all available metals:

{
    "success": true,
    "timestamp": 1761440577,
    "base": "USD",
    "date": "2025-10-26",
    "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": 1761354177,
    "base": "USD",
    "date": "2025-10-25",
    "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": "2025-10-19",
    "end_date": "2025-10-26",
    "base": "USD",
    "rates": {
        "2025-10-19": {
            "XAU": 0.000485,
            "XAG": 0.03825,
            "XPT": 0.000915
        },
        "2025-10-21": {
            "XAU": 0.000483,
            "XAG": 0.0382,
            "XPT": 0.000913
        },
        "2025-10-26": {
            "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": 1761440577,
        "rate": 0.000482
    },
    "result": 0.482,
    "unit": "troy ounces"
}

Fluctuation Endpoint

Track rate fluctuations between two dates:

{
    "success": true,
    "fluctuation": true,
    "start_date": "2025-10-19",
    "end_date": "2025-10-26",
    "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": 1761440577,
    "base": "USD",
    "date": "2025-10-26",
    "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": 1761440577,
    "base": "USD",
    "date": "2025-10-26",
    "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 provides a comprehensive solution for developers seeking to access real-time and historical silver prices. With its wide range of endpoints and functionalities, the API empowers businesses to make informed decisions based on accurate data. Whether you are analyzing market trends, performing currency conversions, or tracking price fluctuations, the Metals-API offers the tools necessary to succeed in the ever-evolving landscape of precious metals.

For more information on how to get started with the Metals-API, refer to the Metals-API Documentation. To explore the full list of supported symbols, visit the Metals-API Supported Symbols page. With the right tools and data at your fingertips, you can harness the power of silver and other precious metals in your applications.