Collect iShares Gold Strategy ETF (IAUF) Historical Prices using this API

Introduction

Metals-API. This API provides a robust platform for accessing real-time and historical data on precious metals, including gold, silver, platinum, and palladium.

Metals-API Information

About Gold (XAU)

API Description

Key Features and Endpoints

• Latest Rates Endpoint: This endpoint provides real-time exchange rate data for metals, updated every 60 minutes, 10 minutes, or even more frequently, depending on the subscription plan. This feature is essential for traders who need up-to-the-minute information to make quick decisions.
• Historical Rates Endpoint: Users can access historical rates dating back to 2019 by appending a specific date to the API call. This is particularly useful for analyzing past performance and identifying trends over time.
• Bid and Ask Endpoint: This powerful feature allows users to retrieve real-time bid and ask prices for metals, providing insights into market liquidity and pricing dynamics.
• Convert Endpoint: The API includes a currency conversion feature that enables users to convert amounts between different metals or to/from USD, facilitating easier trading and investment decisions.
• Time-Series Endpoint: This endpoint allows users to query daily historical rates between two specified dates, making it easier to analyze trends over specific periods.
• Fluctuation Endpoint: Users can track how metal prices fluctuate on a day-to-day basis, providing valuable insights into market volatility.
• Carat Endpoint: This feature allows users to retrieve gold rates by carat, which is particularly useful for jewelers and those in the jewelry industry.
• Lowest/Highest Price Endpoint: Users can query the API to get the lowest and highest prices for a specified date, helping them understand market extremes.
• Open/High/Low/Close (OHLC) Price Endpoint: This endpoint provides open, high, low, and close prices for a specific date, essential for technical analysis.
• Historical LME Endpoint: Access historical rates for LME symbols dating back to 2008, allowing for comprehensive analysis of market trends.
• API Key: Users must pass their unique API key into the API base URL's access_key parameter to authenticate their requests.
• API Response: The API delivers exchange rates relative to USD by default, ensuring consistency in data interpretation.
• Available Endpoints: The Metals-API offers a wide range of endpoints, each providing different functionalities tailored to user needs.
• Supported Symbols Endpoint: This endpoint returns all available currencies and metals, allowing users to stay updated on the latest offerings.
• Gold Price India Endpoint: Retrieve the latest gold price in India using this dedicated endpoint, catering to regional market needs.
• News Endpoint: Users can access the latest news articles related to various metals, keeping them informed about market developments.

List of Symbols

Metals-API Supported Symbols page. This resource is invaluable for developers looking to integrate specific metals into their applications.

API Endpoint Examples and Responses

Latest Rates Endpoint

{
    "success": true,
    "timestamp": 1755248426,
    "base": "USD",
    "date": "2025-08-15",
    "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": 1755162026,
    "base": "USD",
    "date": "2025-08-14",
    "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": "2025-08-08",
    "end_date": "2025-08-15",
    "base": "USD",
    "rates": {
        "2025-08-08": {
            "XAU": 0.000485,
            "XAG": 0.03825,
            "XPT": 0.000915
        },
        "2025-08-10": {
            "XAU": 0.000483,
            "XAG": 0.0382,
            "XPT": 0.000913
        },
        "2025-08-15": {
            "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": 1755248426,
        "rate": 0.000482
    },
    "result": 0.482,
    "unit": "troy ounces"
}

Fluctuation Endpoint

{
    "success": true,
    "fluctuation": true,
    "start_date": "2025-08-08",
    "end_date": "2025-08-15",
    "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) Price Endpoint

{
    "success": true,
    "timestamp": 1755248426,
    "base": "USD",
    "date": "2025-08-15",
    "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": 1755248426,
    "base": "USD",
    "date": "2025-08-15",
    "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, developers can access a wealth of historical price data, enabling them to make informed investment decisions. The API's innovative features, such as real-time rates, historical data, and various endpoints, empower users to analyze market trends and fluctuations effectively.

Metals-API Documentation provides comprehensive guidance on how to utilize the API effectively. Additionally, the Metals-API Supported Symbols page offers a complete list of available metals, ensuring that users can access the data they need.