Integrate this API to Access Advanced Copper Index (XCU_ACI) Historical Prices

In today's rapidly evolving digital landscape, the integration of advanced APIs has become essential for developers looking to harness real-time data and insights. One such powerful tool is the Metals-API, which provides comprehensive access to historical prices of metals, including Copper (XCU). This blog post will delve into the capabilities of the Metals-API, focusing on how to effectively retrieve historical prices and leverage this data for various applications.

About Copper (XCU)

Copper, represented by the symbol XCU, is a fundamental metal in various industries, including construction, electronics, and renewable energy. As the world shifts towards digital transformation, the metal markets are also evolving. The integration of smart technologies, data analytics, and innovative solutions is reshaping how we understand and interact with metal prices. With the rise of technological advancements, developers can now access real-time data to make informed decisions, optimize supply chains, and enhance trading strategies.

As we explore the future trends and possibilities in the copper market, it is essential to consider how APIs like Metals-API can empower developers to build next-generation applications that utilize historical data for predictive analytics, market analysis, and investment strategies.

API Description

The Metals-API is a robust solution designed to provide developers with real-time and historical data on metal prices. This API is particularly valuable for those looking to integrate advanced features into their applications, enabling them to access a wealth of information at their fingertips. With the Metals-API, developers can build applications that require accurate and timely data, such as trading platforms, financial analysis tools, and market research applications.

For more information on the API's capabilities, you can visit the Metals-API Website or explore the Metals-API Documentation for detailed guidance on implementation.

Key Features and Endpoints

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

Latest Rates Endpoint: This endpoint provides real-time exchange rate data for metals, updated based on your subscription plan. Developers can use this feature to display current market prices on their applications, ensuring users have access to the latest information.
Historical Rates Endpoint: Access historical rates dating back to 2019 by appending a specific date to your API request. This feature is invaluable for developers looking to analyze trends over time, allowing for informed decision-making based on past performance.
Bid And Ask Endpoint: Retrieve real-time bid and ask prices for metals, which is crucial for traders looking to make timely buying and selling decisions. This endpoint enhances trading applications by providing essential market data.
Convert Endpoint: The conversion feature allows developers to convert amounts between different metals or to/from USD. This is particularly useful for applications that require currency conversion for transactions or reporting.
Time-Series Endpoint: Query the API for daily historical rates between two specified dates. This endpoint is ideal for developers looking to create visualizations or reports that showcase price movements over time.
Fluctuation Endpoint: Track how metal prices fluctuate on a day-to-day basis. This feature can be used to analyze market volatility and inform trading strategies.
Carat Endpoint: Retrieve information about gold rates by carat, which is essential for jewelers and gold traders who need precise pricing based on purity.
Lowest/Highest Price Endpoint: Query the API to find the lowest and highest prices for a specified date, helping developers identify market extremes.
Open/High/Low/Close (OHLC) Price Endpoint: This endpoint provides open, high, low, and close prices for a specific date, which is crucial for technical analysis in trading applications.
Historical LME Endpoint: Access historical rates for LME symbols dating back to 2008. This feature is particularly beneficial for developers focusing on industrial metals.
API Key: Each user is provided with a unique API key that must be included in requests to authenticate access to the API.
API Response: The API delivers exchange rates relative to USD, ensuring consistency in data representation.
Available Endpoints: The Metals-API includes 14 different endpoints, each designed to provide specific functionalities, allowing developers to tailor their applications to meet user needs.
Supported Symbols Endpoint: This endpoint returns a constantly updated list of all available currencies and metals, ensuring developers have access to the latest symbols.

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": 1784679212,
"base": "USD",
"date": "2026-07-22",
"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": 1784592812,
"base": "USD",
"date": "2026-07-21",
"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": "2026-07-15",
"end_date": "2026-07-22",
"base": "USD",
"rates": {
"2026-07-15": {
"XAU": 0.000485,
"XAG": 0.03825,
"XPT": 0.000915
},
"2026-07-17": {
"XAU": 0.000483,
"XAG": 0.0382,
"XPT": 0.000913
},
"2026-07-22": {
"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": 1784679212,
"rate": 0.000482
},
"result": 0.482,
"unit": "troy ounces"
}

Fluctuation Endpoint

Track rate fluctuations between two dates:

{
"success": true,
"fluctuation": true,
"start_date": "2026-07-15",
"end_date": "2026-07-22",
"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": 1784679212,
"base": "USD",
"date": "2026-07-22",
"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": 1784679212,
"base": "USD",
"date": "2026-07-22",
"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

Integrating the Metals-API into your applications opens up a world of possibilities for accessing and analyzing historical prices of metals like Copper (XCU). By leveraging the various endpoints available, developers can create powerful tools that provide real-time insights, facilitate trading strategies, and enhance market analysis. With the ability to access historical data, track fluctuations, and convert between different metals, the Metals-API is an invaluable resource for anyone involved in the metal markets.

For further exploration of the API's capabilities, be sure to check out the Metals-API Documentation and the Metals-API Supported Symbols page. By utilizing these resources, developers can maximize the potential of the Metals-API and drive innovation in the metal markets.

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Integrate this API to Access Advanced Copper Index (XCU_ACI) Historical Prices