Technical Guide to Zinc - LME 3-month (ZNC3M) Historical Prices using this API

Introduction

Zinc, represented by the symbol XZN, is a crucial metal in various industries, from construction to electronics. As the demand for real-time data in the metal markets grows, developers are turning to APIs like the Metals-API to access historical prices and other essential data. This technical guide will explore how to retrieve historical prices for Zinc using the Metals-API, focusing on the LME 3-month (ZNC3M) prices and the innovative capabilities of this API.

About Zinc (XZN)

Zinc plays a vital role in the digital transformation of metal markets. With technological advancements, the integration of smart technologies and data analytics is reshaping how industries interact with metal pricing. The Metals-API provides developers with the tools to harness real-time data, enabling the creation of next-generation applications that can analyze trends, forecast prices, and optimize supply chains.

Digital Transformation in Metal Markets

The shift towards digital platforms in the metal markets has been accelerated by the need for transparency and efficiency. The Metals-API allows users to access real-time and historical data, empowering developers to build applications that can provide insights into market trends and fluctuations. This capability is essential for businesses looking to make informed decisions based on accurate data.

Technological Innovation and Advancement

With the Metals-API, developers can leverage cutting-edge technology to access a wide range of endpoints. These endpoints provide functionalities such as retrieving the latest rates, historical prices, and even bid and ask prices. This level of access allows for comprehensive analysis and reporting, which is crucial for businesses operating in volatile markets.

Data Analytics and Insights

Data analytics is at the heart of modern business strategies. By utilizing the Metals-API, developers can extract valuable insights from historical price data. This can include identifying trends, understanding price movements, and making predictions based on past performance. The ability to analyze data effectively can lead to better decision-making and strategic planning.

Smart Technology Integration

Integrating smart technologies with the Metals-API can enhance the functionality of applications. For instance, developers can create dashboards that visualize price trends over time, allowing users to monitor fluctuations and make timely decisions. This integration not only improves user experience but also adds significant value to the application.

Future Trends and Possibilities

As the metal markets continue to evolve, the demand for real-time data will only increase. The Metals-API positions itself as a leader in this space, offering a robust solution for accessing historical and current pricing data. Future developments may include enhanced predictive analytics capabilities and more sophisticated data visualization tools, further empowering businesses in their decision-making processes.

API Description

The Metals-API is a powerful tool that provides developers with access to a wealth of information regarding metal prices. Its capabilities extend beyond just retrieving data; it empowers developers to build applications that can analyze and interpret this data in meaningful ways. The API supports various endpoints, each designed to cater to specific data retrieval needs.

For more detailed information on how to utilize the API, refer to the Metals-API Documentation.

Key Features and Endpoints

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

Latest Rates Endpoint

The Latest Rates endpoint provides real-time exchange rate data for metals, updated based on your subscription plan. This endpoint is crucial for applications that require up-to-the-minute pricing information.

{
"success": true,
"timestamp": 1778717859,
"base": "USD",
"date": "2026-05-14",
"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

Accessing historical rates is essential for analyzing trends over time. The Historical Rates endpoint allows users to query for prices dating back to 2019 by appending a specific date to the request.

{
"success": true,
"timestamp": 1778631459,
"base": "USD",
"date": "2026-05-13",
"rates": {
"XAU": 0.000485,
"XAG": 0.03825,
"XPT": 0.000915,
"XPD": 0.000748
},
"unit": "per troy ounce"
}

Bid And Ask Endpoint

This endpoint provides real-time bid and ask prices for metals, which is particularly useful for traders looking to make informed decisions based on current market conditions.

{
"success": true,
"timestamp": 1778717859,
"base": "USD",
"date": "2026-05-14",
"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"
}

Convert Endpoint

The Convert endpoint allows users to convert amounts between different metals or to/from USD. This feature is particularly useful for applications that require currency conversion functionalities.

{
"success": true,
"query": {
"from": "USD",
"to": "XAU",
"amount": 1000
},
"info": {
"timestamp": 1778717859,
"rate": 0.000482
},
"result": 0.482,
"unit": "troy ounces"
}

Time-Series Endpoint

The Time-Series endpoint allows users to query for daily historical rates between two specified dates. This is particularly useful for analyzing trends over specific periods.

{
"success": true,
"timeseries": true,
"start_date": "2026-05-07",
"end_date": "2026-05-14",
"base": "USD",
"rates": {
"2026-05-07": {
"XAU": 0.000485,
"XAG": 0.03825,
"XPT": 0.000915
},
"2026-05-09": {
"XAU": 0.000483,
"XAG": 0.0382,
"XPT": 0.000913
},
"2026-05-14": {
"XAU": 0.000482,
"XAG": 0.03815,
"XPT": 0.000912
}
},
"unit": "per troy ounce"
}

Fluctuation Endpoint

The Fluctuation endpoint provides insights into how prices fluctuate over a specified period, allowing developers to track changes and analyze market volatility.

{
"success": true,
"fluctuation": true,
"start_date": "2026-05-07",
"end_date": "2026-05-14",
"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"
}

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

This endpoint provides detailed OHLC data for a specific time period, which is essential for traders and analysts looking to understand price movements comprehensively.

{
"success": true,
"timestamp": 1778717859,
"base": "USD",
"date": "2026-05-14",
"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"
}

Historical LME Endpoint

The Historical LME endpoint provides access to historical rates for LME symbols dating back to 2008. This is particularly useful for businesses that require long-term data for analysis.

For a complete list of supported symbols, visit the Metals-API Supported Symbols page.

Conclusion

In conclusion, the Metals-API offers a comprehensive solution for accessing historical prices and real-time data for Zinc and other metals. By leveraging its various endpoints, developers can create powerful applications that provide valuable insights into market trends and fluctuations. The integration of smart technologies and data analytics will continue to shape the future of metal markets, making APIs like Metals-API essential tools for businesses looking to thrive in this evolving landscape. For further exploration of the API's capabilities, refer to the Metals-API Documentation.