Access Historical Data for South Korean Won (KRW) using this API

The South Korean Won (KRW) is a vital currency in the global market, particularly in the context of metal trading. With the rise of digital transformation in metal markets, the need for accurate and timely data has never been more critical. Accessing historical data for KRW through the Metals-API allows developers to harness the power of real-time metals data, enabling them to create innovative applications that can analyze trends, forecast prices, and integrate smart technologies. This blog post will explore how to effectively utilize the Metals-API to access historical prices and leverage the capabilities of this powerful tool.

About South Korean Won (KRW)

The South Korean Won is the official currency of South Korea, and it plays a significant role in the Asian financial markets. As the country continues to embrace technological innovation and advancement, the integration of data analytics and insights into trading practices has become essential. The Metals-API provides a robust platform for developers to access historical data, enabling them to analyze fluctuations in the KRW against various metals and other currencies.

In the context of metal markets, the South Korean Won's value can significantly impact pricing and trading strategies. By utilizing the Metals-API, developers can gain insights into how the KRW interacts with precious metals like gold (XAU) and silver (XAG), as well as industrial metals. This data can be used to inform investment decisions, optimize trading strategies, and enhance overall market understanding.

API Description

The Metals-API is a powerful tool designed for developers looking to access real-time and historical metals data. It empowers users to build next-generation applications that can analyze market trends, perform currency conversions, and track price fluctuations. With a focus on innovation and technological advancement, the Metals-API provides a comprehensive suite of features that cater to various use cases.

For more information, visit the Metals-API Website or check out the Metals-API Documentation for detailed guidance on implementation.

Key Features and Endpoints

The Metals-API offers a variety of endpoints that provide different functionalities, allowing developers to access the data they need efficiently. Below are some of the key features and their potential applications:

Latest Rates Endpoint: Depending on your subscription plan, this endpoint returns real-time exchange rate data updated every 60 minutes, every 10 minutes, or even more frequently. This feature is crucial for applications that require up-to-the-minute pricing information.
Historical Rates Endpoint: Access historical rates for most currencies dating back to 2019. Developers can query the Metals-API for historical rates by appending a specific date (YYYY-MM-DD) to the endpoint. This functionality is particularly useful for analyzing trends over time and making informed decisions based on past performance.
Bid And Ask Endpoint: This powerful feature allows users to retrieve real-time bid and ask prices for various metals, providing insights into market liquidity and pricing dynamics.
Convert Endpoint: The Metals-API includes a currency conversion endpoint that enables users to convert any amount from one currency to another. This is particularly useful for traders who need to quickly assess the value of metals in different currencies.
Time-Series Endpoint: This endpoint allows users to query the API for daily historical rates between two dates of their choice. It is ideal for developers looking to analyze price movements over specific periods.
Fluctuation Endpoint: Retrieve information about how currencies fluctuate on a day-to-day basis. This endpoint is essential for understanding market volatility and making strategic trading decisions.
Carat Endpoint: This feature provides information about gold rates by carat, allowing users to assess the value of gold based on its purity.
Lowest/Highest Price Endpoint: This endpoint enables users to query the API to get the lowest and highest price for a specified date, providing insights into market extremes.
Open/High/Low/Close (OHLC) Price Endpoint: Users can query this endpoint to get the open, high, low, and close prices for a specific date, which is crucial for technical analysis.
Historical LME Endpoint: Access historical rates for LME symbols dating back to 2008, allowing for comprehensive analysis of metal prices over time.
API Key: The unique API key is required to access the Metals-API, ensuring secure and authorized usage.
API Response: Exchange rates delivered by the Metals-API are relative to USD by default, and all data is returned in a structured JSON format.
Available Endpoints: The Metals-API offers 14 endpoints, each providing different functionalities tailored to various user needs.
Supported Symbols Endpoint: This constantly updated endpoint returns all available currencies, allowing developers to stay informed about 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": 1784420014,
"base": "USD",
"date": "2026-07-19",
"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": 1784333614,
"base": "USD",
"date": "2026-07-18",
"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": "2026-07-12",
"end_date": "2026-07-19",
"base": "USD",
"rates": {
"2026-07-12": {
"XAU": 0.000485,
"XAG": 0.03825,
"XPT": 0.000915
},
"2026-07-14": {
"XAU": 0.000483,
"XAG": 0.0382,
"XPT": 0.000913
},
"2026-07-19": {
"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": 1784420014,
"rate": 0.000482
},
"result": 0.482,
"unit": "troy ounces"
}

Fluctuation Endpoint

Track rate fluctuations between two dates.

{
"success": true,
"fluctuation": true,
"start_date": "2026-07-12",
"end_date": "2026-07-19",
"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": 1784420014,
"base": "USD",
"date": "2026-07-19",
"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": 1784420014,
"base": "USD",
"date": "2026-07-19",
"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

Accessing historical data for the South Korean Won (KRW) through the Metals-API opens up a world of possibilities for developers looking to create innovative applications in the metal markets. By leveraging the various endpoints offered by the API, users can gain valuable insights into market trends, perform detailed analyses, and make informed trading decisions. The ability to access real-time and historical data empowers developers to build applications that can adapt to the ever-changing landscape of the financial markets.

For those interested in exploring the full capabilities of the Metals-API, I encourage you to visit the Metals-API Documentation for comprehensive guidance on implementation and usage. Additionally, the Metals-API Supported Symbols page provides a complete list of available symbols, ensuring that developers have all the information they need to succeed.

In summary, the Metals-API is a transformative tool that enables developers to harness the power of historical and real-time metals data, paving the way for smarter trading strategies and enhanced market understanding. Embrace the future of metal trading with the Metals-API and unlock the potential of data-driven decision-making.

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Access Historical Data for South Korean Won (KRW) using this API