Get Accurate Historical Prices for Gold Sep 2025 (GCU25) using this API

In the ever-evolving landscape of financial markets, obtaining accurate historical prices for precious metals like Gold (XAU) is crucial for investors, traders, and developers alike. With the rise of digital transformation in the precious metals sector, the need for reliable data analytics and market insights has never been more pronounced. This blog post will explore how to leverage the Metals-API to access historical prices for Gold, specifically focusing on the September 2025 contract (GCU25). We will delve into the innovative features of the API, its endpoints, and how it empowers developers to create next-generation applications.

About Gold (XAU)

Gold has long been regarded as a safe-haven asset, a hedge against inflation, and a store of value. As digital transformation reshapes the financial landscape, the integration of technology in trading and price discovery processes is becoming increasingly vital. The use of data analytics allows market participants to gain insights into price trends, volatility, and market sentiment, which can significantly influence trading strategies.

In recent years, the emergence of digital asset solutions has further revolutionized how investors interact with precious metals. The ability to access real-time data and historical prices through APIs like Metals-API enhances decision-making processes, enabling traders to respond swiftly to market changes. By utilizing advanced technology, investors can optimize their trading strategies, ensuring they remain competitive in a fast-paced environment.

Metals-API Overview

The Metals-API is a powerful tool designed to provide accurate and real-time data on precious metals. It offers a comprehensive suite of features that cater to the needs of developers and traders alike. With its user-friendly interface and extensive documentation, the API allows users to access a wealth of information, including historical prices, latest rates, and market fluctuations.

One of the standout features of the Metals-API is its ability to deliver real-time exchange rate data, updated frequently based on the user's subscription plan. This capability is essential for traders who require up-to-the-minute information to make informed decisions. Additionally, the API supports a wide range of endpoints, each designed to fulfill specific data retrieval needs.

Key Features and Endpoints

The Metals-API boasts a variety of endpoints that provide essential functionalities for accessing and analyzing precious metal prices. Here are some of the key features:

Latest Rates Endpoint: This endpoint returns real-time exchange rate data for metals, updated every 60 minutes, every 10 minutes, or even more frequently, depending on the subscription plan. This feature is crucial for traders who need to stay informed about current market conditions.
Historical Rates Endpoint: Users can access historical rates dating back to 2019 by appending a specific date to the API request. This feature is particularly useful for analyzing price trends over time and making informed trading decisions based on historical data.
Bid And Ask Endpoint: This powerful feature allows users to retrieve real-time bid and ask prices for metals. Understanding the bid-ask spread is essential for traders looking to optimize their entry and exit points in the market.
Convert Endpoint: The Metals-API includes a currency conversion endpoint, enabling users to convert any amount from one metal to another or to/from USD. This feature is particularly useful for traders dealing with multiple currencies.
Time-Series Endpoint: This endpoint allows users to query the API for daily historical rates between two dates of their choice. It is invaluable for conducting in-depth analyses of price movements over specific periods.
Fluctuation Endpoint: Users can track how metal prices fluctuate on a day-to-day basis using this endpoint. It provides insights into market volatility and helps traders anticipate potential price movements.
Carat Endpoint: This feature allows users to retrieve information about Gold rates by carat. It is particularly useful for jewelers and those dealing in high-purity gold.
Lowest/Highest Price Endpoint: This endpoint enables users to query the API for the lowest and highest prices of metals over a specified period, providing valuable insights into market extremes.
Open/High/Low/Close (OHLC) Price Endpoint: Users can access open, high, low, and close prices for a specific time period, which is essential for technical analysis and trading strategies.
Historical LME Endpoint: This endpoint provides access to historical rates for LME symbols dating back to 2008, allowing users to analyze long-term trends in the metals market.
API Key: Each user is assigned a unique API key, which is required to access the API's functionalities. This key ensures secure access to the data.
API Response: The Metals-API delivers exchange rates relative to USD by default, with all data returned in a structured JSON format, making it easy for developers to integrate into their applications.
Available Endpoints: The API features 14 different endpoints, each providing unique functionalities tailored to various user needs.
Supported Symbols Endpoint: This endpoint returns a constantly updated list of all available currencies and metals, ensuring users have access to the latest information.
News Endpoint: Users can retrieve the latest news articles related to various metals, keeping them informed about market developments and trends.

API Endpoint Examples and Responses

Understanding the structure of API responses is crucial for developers looking to integrate the Metals-API into their applications. Below are examples of various endpoints and their corresponding JSON responses:

Latest Rates Endpoint

{
"success": true,
"timestamp": 1765756919,
"base": "USD",
"date": "2025-12-15",
"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"
}

The response indicates a successful request, providing the latest exchange rates for various metals, including Gold (XAU). The rates are expressed per troy ounce, which is the standard measurement for precious metals.

Historical Rates Endpoint

{
"success": true,
"timestamp": 1765670519,
"base": "USD",
"date": "2025-12-14",
"rates": {
"XAU": 0.000485,
"XAG": 0.03825,
"XPT": 0.000915,
"XPD": 0.000748
},
"unit": "per troy ounce"
}

This response shows historical rates for Gold and other metals for a specific date. Developers can use this data to analyze trends and make informed trading decisions based on past performance.

Time-Series Endpoint

{
"success": true,
"timeseries": true,
"start_date": "2025-12-08",
"end_date": "2025-12-15",
"base": "USD",
"rates": {
"2025-12-08": {
"XAU": 0.000485,
"XAG": 0.03825,
"XPT": 0.000915
},
"2025-12-10": {
"XAU": 0.000483,
"XAG": 0.0382,
"XPT": 0.000913
},
"2025-12-15": {
"XAU": 0.000482,
"XAG": 0.03815,
"XPT": 0.000912
}
},
"unit": "per troy ounce"
}

The time-series response provides daily rates for Gold over a specified period, allowing developers to visualize trends and fluctuations in the market.

Convert Endpoint

{
"success": true,
"query": {
"from": "USD",
"to": "XAU",
"amount": 1000
},
"info": {
"timestamp": 1765756919,
"rate": 0.000482
},
"result": 0.482,
"unit": "troy ounces"
}

This response demonstrates the conversion of an amount from USD to Gold (XAU). The result indicates that $1,000 converts to approximately 0.482 troy ounces of Gold, providing valuable information for traders looking to make purchases or investments.

Fluctuation Endpoint

{
"success": true,
"fluctuation": true,
"start_date": "2025-12-08",
"end_date": "2025-12-15",
"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"
}

The fluctuation response provides insights into how Gold and other metals have changed over a specified period. This information is crucial for traders looking to understand market volatility and make informed decisions.

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

{
"success": true,
"timestamp": 1765756919,
"base": "USD",
"date": "2025-12-15",
"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"
}

This response provides the open, high, low, and close prices for Gold and other metals on a specific date. This data is essential for traders conducting technical analysis and developing trading strategies.

Bid/Ask Endpoint

{
"success": true,
"timestamp": 1765756919,
"base": "USD",
"date": "2025-12-15",
"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"
}

The bid/ask response provides current bid and ask prices for Gold and other metals, along with the spread. This information is vital for traders looking to optimize their trading strategies and minimize costs.

Conclusion

In conclusion, the Metals-API offers a comprehensive suite of features that empower developers and traders to access accurate historical prices for Gold and other precious metals. By leveraging the API's innovative endpoints, users can gain valuable insights into market trends, fluctuations, and price movements. The ability to access real-time data and historical prices enhances decision-making processes, enabling traders to remain competitive in a rapidly changing market.

For developers looking to integrate the Metals-API into their applications, the extensive documentation and user-friendly interface make it an ideal choice. Whether you are analyzing historical trends, tracking real-time prices, or converting currencies, the Metals-API provides the tools necessary to succeed in the precious metals market.

To get started with the Metals-API, visit the Metals-API Website and explore the Metals-API Documentation for detailed information on how to utilize its features effectively. Don't forget to check the Metals-API Supported Symbols page for a comprehensive list of available metals and currencies.

Ready to use Metals-API?

Try it now!

Get Accurate Historical Prices for Gold Sep 2025 (GCU25) using this API