Obtain Vietnamese ng (VND) Historical Prices from this API

Introduction

In today's fast-paced financial landscape, obtaining accurate historical prices for currencies such as the Vietnamese đồng (VND) is crucial for developers and analysts alike. The Metals-API provides a robust solution for accessing real-time and historical data on metals and currencies, empowering developers to create innovative applications that leverage this data. This blog post will delve into how to obtain Vietnamese đồng historical prices using the Metals-API, exploring its features, capabilities, and practical applications.

Understanding Neodymium and Its Market Impact

Neodymium (ND) is a rare earth metal that plays a pivotal role in various technological advancements, particularly in the fields of electronics, renewable energy, and automotive industries. As the demand for neodymium continues to rise, driven by digital transformation and technological innovation, understanding its market dynamics becomes essential. The integration of smart technologies and data analytics in metal markets has transformed how stakeholders interact with these commodities.

With the advent of real-time data access through APIs like Metals-API, developers can harness insights that were previously difficult to obtain. This capability allows for better forecasting, pricing strategies, and market analysis, ultimately leading to more informed decision-making.

Metals-API Overview

The Metals-API is a powerful tool designed for developers looking to access comprehensive data on metals and currencies. It offers a wide range of endpoints that provide real-time and historical data, enabling users to build applications that require precise financial information. The API's capabilities include:

• Real-time exchange rates
• Historical rates dating back to 2019
• Bid and ask prices for metals
• Currency conversion functionalities
• Time-series data for trend analysis
• Fluctuation tracking between dates
• Open, high, low, and close (OHLC) price data

By leveraging these features, developers can create applications that not only display current market conditions but also analyze historical trends and fluctuations, providing users with a comprehensive understanding of the market.

Key Features of Metals-API

The Metals-API offers a variety of endpoints that cater to different data needs. Below, we will explore some of the most significant features and how they can be utilized effectively.

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 or even more frequently. This feature is invaluable for applications that require up-to-the-minute pricing information.

{
"success": true,
"timestamp": 1788912740,
"base": "USD",
"date": "2026-09-09",
"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 needing historical data, the Historical Rates Endpoint allows access to exchange rates for most currencies dating back to 2019. By appending a specific date in the format YYYY-MM-DD, users can retrieve past rates, which is essential for trend analysis and financial forecasting.

{
"success": true,
"timestamp": 1788826340,
"base": "USD",
"date": "2026-09-08",
"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 provides real-time bid and ask prices for metals. This information is crucial for traders and developers looking to implement trading functionalities in their applications.

{
"success": true,
"timestamp": 1788912740,
"base": "USD",
"date": "2026-09-09",
"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 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": 1788912740,
"rate": 0.000482
},
"result": 0.482,
"unit": "troy ounces"
}

Time-Series Endpoint

The Time-Series Endpoint enables users to query the API for daily historical rates between two specified dates. This feature is essential for analyzing trends over time and understanding market movements.

{
"success": true,
"timeseries": true,
"start_date": "2026-09-02",
"end_date": "2026-09-09",
"base": "USD",
"rates": {
"2026-09-02": {
"XAU": 0.000485,
"XAG": 0.03825,
"XPT": 0.000915
},
"2026-09-04": {
"XAU": 0.000483,
"XAG": 0.0382,
"XPT": 0.000913
},
"2026-09-09": {
"XAU": 0.000482,
"XAG": 0.03815,
"XPT": 0.000912
}
},
"unit": "per troy ounce"
}

Fluctuation Endpoint

The Fluctuation Endpoint allows users to track how currencies fluctuate on a day-to-day basis. This feature is particularly useful for understanding volatility and making informed trading decisions.

{
"success": true,
"fluctuation": true,
"start_date": "2026-09-02",
"end_date": "2026-09-09",
"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 provides essential data for traders by delivering the open, high, low, and close prices for a specific time period. This information is critical for technical analysis and market predictions.

{
"success": true,
"timestamp": 1788912740,
"base": "USD",
"date": "2026-09-09",
"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 endpoint is particularly useful for those interested in the London Metal Exchange prices.

For developers, this means having the ability to analyze long-term trends and make data-driven decisions based on historical performance.

Authentication and Rate Limiting

To access the Metals-API, users must obtain an API key, which is passed into the API base URL's access_key parameter. This key is essential for authentication and ensures that only authorized users can access the data.

Rate limiting is also a crucial aspect of the API, as it helps manage the load on the server and ensures fair usage among all users. Developers should be aware of their subscription plan's limitations and optimize their requests accordingly.

Common Use Cases for Metals-API

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

• Financial analysis tools that require real-time and historical data for metals and currencies.
• Trading platforms that need to display current bid and ask prices.
• Market research applications that analyze trends over time.
• Currency conversion applications that require accurate exchange rates.

By integrating the Metals-API into their applications, developers can provide users with valuable insights and functionalities that enhance their overall experience.

Conclusion

In conclusion, obtaining historical prices for the Vietnamese đồng (VND) and other currencies is made significantly easier with the Metals-API. With its extensive range of features, including real-time rates, historical data, and various endpoints for different functionalities, developers can create powerful applications that leverage this data effectively. By understanding the capabilities of the API and implementing best practices, developers can optimize their applications for performance and security.

For more detailed information, developers can refer to the Metals-API Documentation and explore the Metals-API Supported Symbols to ensure they are utilizing the API to its fullest potential. The future of financial data access is here, and with the right tools, developers can harness its power to drive innovation and success in their applications.