Retrieve Honduran Lempira (HNL) Historical Prices with this API

Introduction

In today's fast-paced financial landscape, the ability to retrieve historical prices for currencies like the Honduran Lempira (HNL) is crucial for developers and analysts alike. The Metals-API offers a powerful solution for accessing real-time and historical data on various metals and currencies, including the HNL. This blog post will delve into the capabilities of the Metals-API, focusing on how developers can leverage its features to retrieve historical prices effectively.

Understanding the Metals-API

The Metals-API is a comprehensive JSON API that provides access to real-time and historical data for metals and currencies. It is designed to empower developers to create next-generation applications that require accurate and timely financial data. With a focus on innovation and technological advancement, the Metals-API integrates smart technology and data analytics to deliver insights that can transform the way businesses operate in the metal markets.

About Neodymium (ND)

Neodymium, a rare earth metal, plays a significant role in various technological advancements. As industries undergo digital transformation, the demand for neodymium is expected to rise due to its applications in high-strength magnets, electric vehicles, and renewable energy technologies. The integration of smart technology and data analytics in the metal markets allows for better tracking of neodymium prices and trends, providing valuable insights for developers and businesses alike.

API Description

The Metals-API is designed to provide developers with the tools they need to access a wide range of financial data. Its capabilities include real-time exchange rates, historical price data, and various endpoints that cater to different data needs. By utilizing this API, developers can build applications that offer users insights into market trends, price fluctuations, and historical data analysis.

For detailed information on how to use the API, refer to the Metals-API Documentation, which provides comprehensive guidance on the available endpoints and their functionalities.

Key Features of the Metals-API

The Metals-API offers a variety of endpoints that serve different purposes, making it a versatile tool for developers. Here are some of the key features:

Latest Rates Endpoint

The Latest Rates Endpoint provides real-time exchange rate data for various metals and currencies. Depending on your subscription plan, this endpoint can return updates every 60 minutes, every 10 minutes, or even more frequently. This feature is essential for applications that require up-to-the-minute pricing information.

{
"success": true,
"timestamp": 1783642502,
"base": "USD",
"date": "2026-07-10",
"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

For developers looking to analyze trends over time, the Historical Rates Endpoint is invaluable. It allows users to access historical rates for most currencies dating back to 2019. By appending a specific date in the format YYYY-MM-DD, developers can query the API for past rates, enabling comprehensive historical analysis.

{
"success": true,
"timestamp": 1783556102,
"base": "USD",
"date": "2026-07-09",
"rates": {
"XAU": 0.000485,
"XAG": 0.03825,
"XPT": 0.000915,
"XPD": 0.000748
},
"unit": "per troy ounce"
}

Bid And Ask Endpoint

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

{
"success": true,
"timestamp": 1783642502,
"base": "USD",
"date": "2026-07-10",
"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 developers to convert any amount from one currency to another, including conversions to and 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": 1783642502,
"rate": 0.000482
},
"result": 0.482,
"unit": "troy ounces"
}

Time-Series Endpoint

The Time-Series Endpoint allows users to query the API for daily historical rates between two dates of their choice. This is particularly useful for analyzing trends and fluctuations over specific periods, enabling developers to create insightful reports and visualizations.

{
"success": true,
"timeseries": true,
"start_date": "2026-07-03",
"end_date": "2026-07-10",
"base": "USD",
"rates": {
"2026-07-03": {
"XAU": 0.000485,
"XAG": 0.03825,
"XPT": 0.000915
},
"2026-07-05": {
"XAU": 0.000483,
"XAG": 0.0382,
"XPT": 0.000913
},
"2026-07-10": {
"XAU": 0.000482,
"XAG": 0.03815,
"XPT": 0.000912
}
},
"unit": "per troy ounce"
}

Fluctuation Endpoint

The Fluctuation Endpoint provides information about how currencies fluctuate on a day-to-day basis. This feature is essential for understanding market volatility and making informed trading decisions.

{
"success": true,
"fluctuation": true,
"start_date": "2026-07-03",
"end_date": "2026-07-10",
"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

The OHLC Price Endpoint allows developers to retrieve open, high, low, and close prices for a specific time period. This data is crucial for traders who analyze price movements and trends to make informed decisions.

{
"success": true,
"timestamp": 1783642502,
"base": "USD",
"date": "2026-07-10",
"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 feature is particularly useful for developers working with metals traded on the London Metal Exchange.

API Key and Authentication

To access the Metals-API, developers must obtain an API key, which is a unique identifier 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.

API Response Structure

The API responses are structured in JSON format, providing a clear and organized way to access data. Each response includes fields such as success, timestamp, base currency, date, rates, and unit. Understanding these fields is crucial for developers to effectively utilize the API.

Common Use Cases for the Metals-API

The Metals-API can be utilized in various applications, including:

• Financial Applications: Developers can create applications that provide real-time pricing information for metals and currencies, helping traders make informed decisions.
• Market Analysis Tools: By leveraging historical data, developers can build tools that analyze trends and fluctuations in metal prices, providing valuable insights for investors.
• Currency Conversion Services: The Convert Endpoint allows for seamless currency conversion, making it easier for users to transact across different currencies.

Conclusion

In conclusion, the Metals-API offers a robust solution for developers looking to retrieve historical prices for the Honduran Lempira (HNL) and other currencies. With its extensive range of features, including real-time rates, historical data, and various endpoints, the API empowers developers to create innovative applications that meet the demands of today's financial landscape. By understanding the capabilities of the Metals-API and leveraging its features, developers can unlock new possibilities for data analysis, market insights, and financial applications.

For more information on the available symbols, visit the Metals-API Supported Symbols page. To get started with the API, refer to the Metals-API Documentation for detailed guidance on implementation and usage.