Access iShares Gold Trust (IAU) Exchange Rates with JSON API Access in JSON Format

Metals-API 5 min read
Access iShares Gold Trust (IAU) Exchange Rates with JSON API Access in JSON Format

Access iShares Gold Trust (IAU) Exchange Rates with JSON API Access in JSON Format

In today's rapidly evolving financial landscape, the ability to access real-time data is crucial for developers and traders alike. The iShares Gold Trust (IAU) is a popular investment vehicle that allows individuals to gain exposure to gold prices without the need to physically hold the metal. By leveraging the Metals-API, developers can retrieve exchange rates for IAU in JSON format, enabling them to build innovative applications that provide valuable insights into gold pricing and market trends.

Metals-API Information

About Gold (XAU)

Gold has long been regarded as a safe-haven asset, particularly during times of economic uncertainty. As digital transformation sweeps through the financial sector, the integration of data analytics and technology in trading has become more pronounced. The Metals-API offers a robust platform that empowers developers to harness real-time metals data, facilitating innovation in price discovery and digital asset solutions. By utilizing this API, developers can create applications that analyze market trends, track fluctuations, and provide insights into gold pricing.

API Description

The Metals-API is designed to provide developers with comprehensive access to real-time and historical metals data. This API is a powerful tool that enables the creation of next-generation applications, allowing users to retrieve exchange rates, historical data, and more. With a focus on innovation and technological advancement, the Metals-API transforms how developers interact with precious metals data.

For more information, visit the Metals-API Documentation to explore the various endpoints and capabilities available.

Key Features and Endpoints

The Metals-API offers a variety of endpoints that cater to different needs. Here are some of the key features:

  • 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 your subscription plan. This feature is essential for applications that require up-to-the-minute pricing information.
  • Historical Rates Endpoint: Access historical rates dating back to 2019 by appending a specific date (YYYY-MM-DD) to the endpoint. This feature is invaluable for developers looking to analyze trends over time.
  • Bid And Ask Endpoint: Retrieve real-time bid and ask prices for metals, allowing developers to implement trading strategies based on current market conditions.
  • Convert Endpoint: This endpoint enables users to convert any amount from one currency to another, facilitating seamless transactions across different metals.
  • Time-Series Endpoint: Query the API for daily historical rates between two dates of your choice, providing insights into price movements over specific periods.
  • Fluctuation Endpoint: Track how currencies fluctuate on a day-to-day basis, offering valuable data for market analysis.
  • Carat Endpoint: Retrieve information about gold rates by carat, which is particularly useful for jewelers and those in the jewelry industry.
  • Lowest/Highest Price Endpoint: Get the lowest and highest prices for a specified date, allowing for quick assessments of market performance.
  • Open/High/Low/Close (OHLC) Price Endpoint: Access open, high, low, and close prices for a specific date, which is crucial for technical analysis.
  • Historical LME Endpoint: Access historical rates for LME symbols dating back to 2008, providing a comprehensive view of market trends.
  • API Key: The unique key required to access the API, ensuring secure and authorized usage.
  • API Response: Exchange rates are delivered relative to USD by default, with all data returned in a structured JSON format.
  • Available Endpoints: The Metals-API includes 14 endpoints, each offering distinct functionalities for various use cases.
  • Supported Symbols Endpoint: Access a constantly updated list of all available currencies and metals.
  • News Endpoint: Retrieve the latest news articles related to various metals, keeping users informed about market developments.

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.

API Endpoint Examples and Responses

Latest Rates Endpoint

Get real-time exchange rates for all available metals:

{
"success": true,
"timestamp": 1777270062,
"base": "USD",
"date": "2026-04-27",
"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": 1777183662,
"base": "USD",
"date": "2026-04-26",
"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": "2026-04-20",
"end_date": "2026-04-27",
"base": "USD",
"rates": {
"2026-04-20": {
"XAU": 0.000485,
"XAG": 0.03825,
"XPT": 0.000915
},
"2026-04-22": {
"XAU": 0.000483,
"XAG": 0.0382,
"XPT": 0.000913
},
"2026-04-27": {
"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": 1777270062,
"rate": 0.000482
},
"result": 0.482,
"unit": "troy ounces"
}

Fluctuation Endpoint

Track rate fluctuations between two dates:

{
"success": true,
"fluctuation": true,
"start_date": "2026-04-20",
"end_date": "2026-04-27",
"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": 1777270062,
"base": "USD",
"date": "2026-04-27",
"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": 1777270062,
"base": "USD",
"date": "2026-04-27",
"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

Accessing iShares Gold Trust (IAU) exchange rates through the Metals-API provides developers with a powerful tool to create applications that leverage real-time and historical data. With a wide array of endpoints, including the latest rates, historical data, and conversion capabilities, the Metals-API empowers developers to build innovative solutions that enhance market analysis and trading strategies.

By integrating the Metals-API into your applications, you can harness the full potential of precious metals data, enabling you to stay ahead in the competitive financial landscape. For further exploration, refer to the Metals-API Documentation and discover the extensive capabilities of this powerful API.