Obtain Kolkata Silver (XAG-KOLK) Historical Prices via this API

Metals-API, which provides comprehensive access to real-time and historical prices for various metals, including Silver (XAG). In this blog post, we will delve into the intricacies of obtaining historical prices for Kolkata Silver (XAG-KOLK) using the Metals-API, exploring its features, capabilities, and practical applications.

About Silver (XAG)

API Description

Metals-API Documentation. Here, you will find comprehensive guides on how to implement various features and endpoints effectively.

Key Features and Endpoints

Latest Rates Endpoint: This endpoint provides real-time exchange rate data for metals, updated every 60 minutes or more frequently, depending on your subscription plan. For example, you can retrieve the latest silver price in USD with a simple API call.
Historical Rates Endpoint: Access historical rates for silver dating back to 2019. By appending a specific date to your API request, you can obtain the silver price for that day, allowing for in-depth analysis of price trends over time.
Bid And Ask Endpoint: This feature enables you to retrieve real-time bid and ask prices for silver, providing insights into market liquidity and pricing dynamics.
Convert Endpoint: The API includes a currency conversion feature that allows you to convert any amount from one metal to another or to/from USD. This is particularly useful for traders operating in different currencies.
Time-Series Endpoint: This endpoint allows you to query the API for daily historical rates between two dates of your choice, enabling you to analyze price movements over specific periods.
Fluctuation Endpoint: Track how silver prices fluctuate on a day-to-day basis. This endpoint provides valuable insights into market volatility and price trends.
Carat Endpoint: Retrieve information about gold rates by carat, which can be useful for those dealing with gold in various purities.
Lowest/Highest Price Endpoint: Query the API to get the lowest and highest price of silver for a specified date, which can help identify market extremes.
Open/High/Low/Close (OHLC) Price Endpoint: This endpoint provides the open, high, low, and close prices for silver on a given date, essential for technical analysis.
Historical LME Endpoint: Access historical rates for LME symbols dating back to 2008, which is beneficial for those analyzing long-term trends.
API Key: Your unique API key is required for authentication, ensuring secure access to the API's features.
API Response: The API delivers exchange rates relative to USD by default, with all data returned in a structured JSON format.
Supported Symbols Endpoint: This endpoint provides a constantly updated list of all available currencies and metals, ensuring you have the latest information at your fingertips.
Gold Price India Endpoint: Retrieve the latest gold price in India, which can be useful for investors in the Indian market.
News Endpoint: Stay updated with the latest news articles related to various metals, providing context to market movements.

List of Symbols

Metals-API Supported Symbols page.

API Endpoint Examples and Responses

Latest Rates Endpoint

{
    "success": true,
    "timestamp": 1754413277,
    "base": "USD",
    "date": "2025-08-05",
    "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

{
    "success": true,
    "timestamp": 1754326877,
    "base": "USD",
    "date": "2025-08-04",
    "rates": {
        "XAU": 0.000485,
        "XAG": 0.03825,
        "XPT": 0.000915,
        "XPD": 0.000748
    },
    "unit": "per troy ounce"
}

Time-series Endpoint

{
    "success": true,
    "timeseries": true,
    "start_date": "2025-07-29",
    "end_date": "2025-08-05",
    "base": "USD",
    "rates": {
        "2025-07-29": {
            "XAU": 0.000485,
            "XAG": 0.03825,
            "XPT": 0.000915
        },
        "2025-07-31": {
            "XAU": 0.000483,
            "XAG": 0.0382,
            "XPT": 0.000913
        },
        "2025-08-05": {
            "XAU": 0.000482,
            "XAG": 0.03815,
            "XPT": 0.000912
        }
    },
    "unit": "per troy ounce"
}

Convert Endpoint

{
    "success": true,
    "query": {
        "from": "USD",
        "to": "XAU",
        "amount": 1000
    },
    "info": {
        "timestamp": 1754413277,
        "rate": 0.000482
    },
    "result": 0.482,
    "unit": "troy ounces"
}

Fluctuation Endpoint

{
    "success": true,
    "fluctuation": true,
    "start_date": "2025-07-29",
    "end_date": "2025-08-05",
    "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

{
    "success": true,
    "timestamp": 1754413277,
    "base": "USD",
    "date": "2025-08-05",
    "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

{
    "success": true,
    "timestamp": 1754413277,
    "base": "USD",
    "date": "2025-08-05",
    "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

Metals-API Documentation and discover the full potential of integrating real-time metals data into your applications. Whether you are looking to analyze market trends, perform currency conversions, or track price fluctuations, the Metals-API offers the tools necessary to succeed in the competitive world of precious metals.

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Obtain Kolkata Silver (XAG-KOLK) Historical Prices via this API