Best iShares Gold Trust (IAU) prices API in 2025

In 2025, the demand for real-time data on precious metals, particularly gold, is expected to surge. The iShares Gold Trust (IAU) is a popular investment vehicle for those looking to gain exposure to gold prices. To effectively track and analyze the fluctuations in gold prices, developers and traders are increasingly turning to APIs that provide comprehensive data on precious metals. One such powerful tool is the Metals-API, which offers a robust solution for accessing real-time and historical gold price data.

Metals-API Information

About Gold (XAU)

Gold, represented by the symbol XAU, has long been regarded as a safe-haven asset and a hedge against inflation. As the world undergoes digital transformation, the precious metals market is not left behind. The integration of data analytics and technology in trading has revolutionized how investors approach gold. With the rise of digital asset solutions, traders can now leverage advanced tools to gain insights into market trends and price movements.

The innovation in price discovery mechanisms has enabled more accurate and timely assessments of gold's value. As a result, developers are seeking APIs that can provide them with the necessary data to build next-generation applications that cater to the evolving needs of investors and traders.

API Description

The Metals-API is designed to empower developers with real-time metals data, enabling them to create applications that can analyze, visualize, and react to market changes. This API provides a wide range of functionalities, including the ability to access the latest rates, historical data, and even perform currency conversions. By utilizing the Metals-API Documentation, developers can explore the various endpoints available and understand how to implement them effectively.

Key Features and Endpoints

The Metals-API offers several key features that can be utilized for various applications:

Latest Rates Endpoint

The Latest Rates Endpoint provides real-time exchange rate data for precious metals. Depending on the subscription plan, this endpoint can return updates every 60 minutes, every 10 minutes, or even more frequently. This feature is essential for traders who need to make quick decisions based on the latest market data.

{
        "success": true,
        "timestamp": 1742698820,
        "base": "USD",
        "date": "2025-03-23",
        "rates": {
            "XAU": 0.000482,
            "XAG": 0.03815,
            "XPT": 0.000912,
            "XPD": 0.000744
        },
        "unit": "per troy ounce"
    }

Historical Rates Endpoint

For those interested in analyzing trends over time, the Historical Rates Endpoint provides access to historical exchange rates dating back to 2019. Developers can query this endpoint by appending a specific date to retrieve past rates, allowing for in-depth analysis of price movements.

{
        "success": true,
        "timestamp": 1742612420,
        "base": "USD",
        "date": "2025-03-22",
        "rates": {
            "XAU": 0.000485,
            "XAG": 0.03825
        },
        "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 buy or sell orders at the best possible prices.

{
        "success": true,
        "timestamp": 1742698820,
        "base": "USD",
        "date": "2025-03-23",
        "rates": {
            "XAU": {
                "bid": 0.000481,
                "ask": 0.000483,
                "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.

{
        "success": true,
        "query": {
            "from": "USD",
            "to": "XAU",
            "amount": 1000
        },
        "info": {
            "timestamp": 1742698820,
            "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 functionality is essential for conducting thorough analyses of price trends over specific periods.

{
        "success": true,
        "timeseries": true,
        "start_date": "2025-03-16",
        "end_date": "2025-03-23",
        "base": "USD",
        "rates": {
            "2025-03-16": {
                "XAU": 0.000485
            },
            "2025-03-23": {
                "XAU": 0.000482
            }
        },
        "unit": "per troy ounce"
    }

Fluctuation Endpoint

The Fluctuation Endpoint provides insights into how currencies fluctuate on a day-to-day basis. This feature is particularly beneficial for traders looking to understand market volatility and make informed trading decisions.

{
        "success": true,
        "fluctuation": true,
        "start_date": "2025-03-16",
        "end_date": "2025-03-23",
        "base": "USD",
        "rates": {
            "XAU": {
                "start_rate": 0.000485,
                "end_rate": 0.000482,
                "change": -3.0e-6,
                "change_pct": -0.62
            }
        },
        "unit": "per troy ounce"
    }

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

The OHLC Price Endpoint allows users to retrieve the open, high, low, and close prices for a specific time period. This data is crucial for technical analysis and helps traders identify potential entry and exit points.

{
        "success": true,
        "timestamp": 1742698820,
        "base": "USD",
        "date": "2025-03-23",
        "rates": {
            "XAU": {
                "open": 0.000485,
                "high": 0.000487,
                "low": 0.000481,
                "close": 0.000482
            }
        },
        "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 those looking to analyze trends in metals traded on the London Metal Exchange.

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.

Conclusion

As we move further into 2025, the importance of real-time data in the precious metals market cannot be overstated. The Metals-API stands out as a powerful tool for developers looking to build applications that require accurate and timely data on gold and other metals. With its extensive range of features, including the Latest Rates, Historical Rates, and various conversion endpoints, the API empowers users to make informed decisions based on reliable data.

For developers interested in leveraging the capabilities of the Metals-API, the Metals-API Documentation provides comprehensive guidance on how to implement these features effectively. By utilizing this API, developers can create innovative solutions that meet the demands of today's dynamic trading environment.

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