Get Guatemalan Quetzal (GTQ) Historical Prices using this API

In the ever-evolving landscape of financial technology, the ability to access real-time and historical data is paramount for developers and businesses alike. One such powerful tool is the Metals-API, which provides comprehensive access to metal prices, including the Guatemalan Quetzal (GTQ). This blog post delves into the capabilities of the Metals-API, focusing on how developers can leverage it to obtain historical prices and other valuable data related to metals.

Understanding the Importance of Historical Prices

Historical prices are crucial for various applications, including financial analysis, market research, and investment strategies. By analyzing past price trends, developers can create predictive models, assess market volatility, and make informed decisions. The Metals-API offers an efficient way to access this data, enabling developers to integrate it seamlessly into their applications.

Metals-API Overview

The Metals-API is a robust platform designed to provide real-time and historical data for various metals, including gold, silver, platinum, and palladium. It empowers developers to build applications that require accurate and timely metal pricing information. The API is designed with innovation in mind, allowing for easy integration and extensive data analytics capabilities.

About Tellurium (TE)

While this blog post primarily focuses on the Guatemalan Quetzal (GTQ), it is essential to recognize the broader context of metals in the market. Metals like Tellurium (TE) are increasingly relevant in discussions about digital transformation and technological innovation. The integration of smart technologies and data analytics in metal markets is paving the way for future trends that will redefine how we interact with these commodities.

API Capabilities and Features

The Metals-API offers a variety of endpoints that cater to different needs, from retrieving the latest rates to accessing historical data. 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 essential for applications that require up-to-the-minute pricing information. For example, a developer can query the API to get the latest price of gold (XAU) against the Guatemalan Quetzal (GTQ).

{
"success": true,
"timestamp": 1770682493,
"base": "GTQ",
"date": "2026-02-10",
"rates": {
"XAU": 0.000482,
"XAG": 0.03815
},
"unit": "per troy ounce"
}

Historical Rates Endpoint

Accessing historical rates is straightforward with the Metals-API. Developers can query historical prices dating back to 2019 by appending a specific date to the endpoint. This feature is invaluable for conducting trend analyses and understanding market movements over time.

{
"success": true,
"timestamp": 1770596093,
"base": "GTQ",
"date": "2026-02-09",
"rates": {
"XAU": 0.000485,
"XAG": 0.03825
},
"unit": "per troy ounce"
}

Bid and Ask Endpoint

The Bid and Ask Endpoint allows developers to retrieve real-time bid and ask prices for metals. This feature is particularly useful for traders who need to make quick decisions based on current market conditions.

{
"success": true,
"timestamp": 1770682493,
"base": "GTQ",
"date": "2026-02-10",
"rates": {
"XAU": {
"bid": 0.000481,
"ask": 0.000483,
"spread": 2.0e-6
}
},
"unit": "per troy ounce"
}

Convert Endpoint

The Convert Endpoint is a powerful feature that allows users to convert any amount from one metal to another or to/from USD. This functionality is essential for applications that require currency conversion for pricing or reporting purposes.

{
"success": true,
"query": {
"from": "GTQ",
"to": "XAU",
"amount": 1000
},
"info": {
"timestamp": 1770682493,
"rate": 0.000482
},
"result": 0.482,
"unit": "troy ounces"
}

Time-Series Endpoint

The Time-Series Endpoint allows developers to query the API for daily historical rates between two specified dates. This feature is particularly useful for analyzing trends over a defined period.

{
"success": true,
"timeseries": true,
"start_date": "2026-02-03",
"end_date": "2026-02-10",
"base": "GTQ",
"rates": {
"2026-02-03": {
"XAU": 0.000485
},
"2026-02-10": {
"XAU": 0.000482
}
},
"unit": "per troy ounce"
}

Fluctuation Endpoint

The Fluctuation Endpoint provides insights into how metal prices fluctuate over time. Developers can track rate changes between two dates, which is crucial for understanding market volatility.

{
"success": true,
"fluctuation": true,
"start_date": "2026-02-03",
"end_date": "2026-02-10",
"base": "GTQ",
"rates": {
"XAU": {
"start_rate": 0.000485,
"end_rate": 0.000482,
"change": -3.0e-6,
"change_pct": -0.62
}
},
"unit": "per troy ounce"
}

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

The OHLC Price Endpoint allows developers to retrieve open, high, low, and close prices for a specific time period. This data is essential for traders and analysts who need to evaluate market performance over time.

{
"success": true,
"timestamp": 1770682493,
"base": "GTQ",
"date": "2026-02-10",
"rates": {
"XAU": {
"open": 0.000485,
"high": 0.000487,
"low": 0.000481,
"close": 0.000482
}
},
"unit": "per troy ounce"
}

Historical LME Endpoint

The Historical LME Endpoint provides access to historical rates for LME symbols dating back to 2008. This endpoint is particularly useful for developers working with metals traded on the London Metal Exchange.

Authentication and API Key

To access the Metals-API, developers must obtain an API key, which is passed into the API base URL's access_key parameter. This key is essential for authenticating requests and ensuring secure access to the API's features.

Performance Optimization and Best Practices

When integrating the Metals-API into applications, developers should consider performance optimization strategies. This includes implementing caching mechanisms to reduce API calls, handling errors gracefully, and ensuring that the application can scale to accommodate increased demand.

Security Considerations

Security is paramount when dealing with financial data. Developers should follow best practices for securing API keys, such as not hardcoding them in public repositories and using environment variables for sensitive information. Additionally, implementing rate limiting and monitoring API usage can help prevent abuse and ensure compliance with the API's terms of service.

Conclusion

The Metals-API is a powerful tool for developers looking to access real-time and historical metal prices, including the Guatemalan Quetzal (GTQ). With its extensive range of endpoints and capabilities, the API empowers developers to build innovative applications that leverage metal pricing data for various use cases. By understanding the features and best practices outlined in this blog post, developers can effectively integrate the Metals-API into their projects and harness the transformative potential of real-time metals data.

For more information, refer to the Metals-API Documentation and explore the Metals-API Supported Symbols for a comprehensive list of available metal symbols. Start building your applications today with the Metals-API Website.