Discover How to Get ProShares Ultra Gold (UGL) Historical Prices with this API

In the world of finance, particularly in the realm of precious metals, having access to accurate and timely data is crucial for making informed investment decisions. For those interested in tracking the performance of ProShares Ultra Gold (UGL), understanding how to retrieve historical prices is essential. The Metals-API provides a robust solution for developers looking to access real-time and historical data on gold and other metals. This blog post will delve into the capabilities of the Metals-API, focusing on how to obtain historical prices for UGL and explore the innovative features that make this API a powerful tool for financial analysis.

About Gold (XAU)

Gold has long been a symbol of wealth and stability, serving as a hedge against inflation and currency fluctuations. As digital transformation sweeps through the financial sector, the integration of technology in trading precious metals is becoming increasingly vital. The Metals-API stands at the forefront of this transformation, offering developers the ability to harness data analytics and market insights to create innovative applications.

With the rise of digital asset solutions, understanding the dynamics of gold pricing is more important than ever. The Metals-API empowers developers to build next-generation applications that can analyze trends, predict price movements, and provide users with real-time insights into the gold market. By leveraging the API, developers can create tools that enhance price discovery and optimize trading strategies.

API Description

The Metals-API is a powerful JSON API that provides access to real-time and historical prices for various metals, including gold (XAU). This API is designed to facilitate the integration of metals data into applications, enabling developers to create sophisticated financial tools. With its focus on innovation and technological advancement, the Metals-API transforms how users interact with precious metals data.

For more information about the API, visit the Metals-API Website. Comprehensive documentation is available at the Metals-API Documentation, which outlines the various endpoints and their functionalities. Additionally, you can explore the Metals-API Supported Symbols to understand the range of metals available for querying.

Key Features and Endpoints

The Metals-API offers a variety of endpoints that cater to different data needs. Each endpoint is designed to provide specific functionalities that can be leveraged in various applications. Here are some of the key features:

Latest Rates Endpoint: This endpoint provides real-time exchange rate data for metals, updated based on your subscription plan. Depending on the plan, updates can occur every 60 minutes or even every 10 minutes, ensuring that users have access to the most current market information.
Historical Rates Endpoint: Users can access historical rates dating back to 2019. By appending a specific date in the format YYYY-MM-DD, developers can retrieve past prices for UGL and other metals, allowing for in-depth analysis of price trends over time.
Bid And Ask Endpoint: This feature allows users to retrieve real-time bid and ask prices for metals, providing insights into market liquidity and pricing dynamics.
Convert Endpoint: The conversion endpoint enables users to convert amounts between different metals or to/from USD, facilitating seamless transactions and calculations.
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 based on carat measurements, which is particularly useful for jewelers and traders dealing in gold jewelry.
Lowest/Highest Price Endpoint: This endpoint enables users to query the API for the lowest and highest prices of metals over a specified period, which can be crucial for identifying market extremes.
Open/High/Low/Close (OHLC) Price Endpoint: Users can access the open, high, low, and close prices for a specific date, providing a comprehensive view of daily price movements.
Historical LME Endpoint: This endpoint provides access to historical rates for LME symbols dating back to 2008, allowing for extensive historical analysis.
API Key: Each user is assigned a unique API key, which must be included in the API requests to authenticate and authorize access to the data.
API Response: The Metals-API delivers exchange rates relative to USD by default, ensuring consistency in data interpretation.
Available Endpoints: With a total of 14 API endpoints, the Metals-API offers diverse functionalities to meet various data needs.
Supported Symbols Endpoint: This endpoint provides a constantly updated list of all available currencies and metals, ensuring users have access to the latest information.
Intraday Endpoint: Users can query intraday exchange rate data for a single symbol, which is essential for high-frequency trading strategies.

API Endpoint Examples and Responses

To illustrate the capabilities of the Metals-API, here are some example responses for various endpoints:

Latest Rates Endpoint

{
"success": true,
"timestamp": 1786839123,
"base": "USD",
"date": "2026-08-16",
"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"
}

The response indicates that the API successfully retrieved the latest rates, with gold priced at 0.000482 per troy ounce. This data is crucial for traders looking to make quick decisions based on current market conditions.

Historical Rates Endpoint

{
"success": true,
"timestamp": 1786752723,
"base": "USD",
"date": "2026-08-15",
"rates": {
"XAU": 0.000485,
"XAG": 0.03825,
"XPT": 0.000915,
"XPD": 0.000748
},
"unit": "per troy ounce"
}

This response shows historical rates for a specific date, allowing developers to analyze past performance and identify trends. For instance, the gold price was slightly higher at 0.000485 on August 15, 2026, compared to the latest rate.

Time-series Endpoint

{
"success": true,
"timeseries": true,
"start_date": "2026-08-09",
"end_date": "2026-08-16",
"base": "USD",
"rates": {
"2026-08-09": {
"XAU": 0.000485,
"XAG": 0.03825,
"XPT": 0.000915
},
"2026-08-11": {
"XAU": 0.000483,
"XAG": 0.0382,
"XPT": 0.000913
},
"2026-08-16": {
"XAU": 0.000482,
"XAG": 0.03815,
"XPT": 0.000912
}
},
"unit": "per troy ounce"
}

This time-series response provides daily rates for gold over a specified period, enabling developers to visualize trends and fluctuations in the market. For example, gold prices decreased from 0.000485 on August 9 to 0.000482 on August 16.

Convert Endpoint

{
"success": true,
"query": {
"from": "USD",
"to": "XAU",
"amount": 1000
},
"info": {
"timestamp": 1786839123,
"rate": 0.000482
},
"result": 0.482,
"unit": "troy ounces"
}

The convert endpoint allows users to easily convert amounts between different metals or currencies. In this case, 1000 USD converts to 0.482 troy ounces of gold, providing a straightforward way to assess value.

Fluctuation Endpoint

{
"success": true,
"fluctuation": true,
"start_date": "2026-08-09",
"end_date": "2026-08-16",
"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"
}

This response provides insights into how prices have fluctuated over a specified period. For example, gold experienced a slight decrease of 0.62% during the observed timeframe, which can inform trading strategies.

OHLC (Open/High/Low/Close) Endpoint

{
"success": true,
"timestamp": 1786839123,
"base": "USD",
"date": "2026-08-16",
"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"
}

The OHLC endpoint provides a comprehensive view of price movements throughout the day. For instance, gold opened at 0.000485, reached a high of 0.000487, and closed at 0.000482, which can help traders assess market behavior.

Bid/Ask Endpoint

{
"success": true,
"timestamp": 1786839123,
"base": "USD",
"date": "2026-08-16",
"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"
}

This endpoint provides the current bid and ask prices for metals, which is essential for traders looking to execute buy or sell orders. The spread indicates the difference between the bid and ask prices, which can affect trading costs.

Conclusion

In conclusion, the Metals-API offers a comprehensive suite of tools for developers looking to access and analyze historical prices for ProShares Ultra Gold (UGL) and other metals. By leveraging the various endpoints, developers can create sophisticated applications that provide real-time insights, track historical trends, and facilitate currency conversions. The API's focus on innovation and technological advancement positions it as a vital resource in the ever-evolving landscape of precious metals trading.

For those interested in exploring the capabilities of the Metals-API further, be sure to check out the Metals-API Documentation for detailed information on each endpoint and its functionalities. Additionally, the Metals-API Supported Symbols page provides a comprehensive list of available metals, ensuring that developers have access to the data they need for their applications. Finally, visit the Metals-API Website to get started with your API integration and unlock the potential of real-time metals data.

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Discover How to Get ProShares Ultra Gold (UGL) Historical Prices with this API