Access Swedish Krona (SEK) Exchange Rate API Documentation in JSON Format

In today's fast-paced financial landscape, having access to real-time data is crucial for developers and businesses alike. The Metals-API provides a powerful solution for retrieving exchange rates for various metals, including the Swedish Krona (SEK). This blog post will guide you through the process of accessing exchange rates in JSON format using the Metals-API, showcasing its capabilities, features, and practical integration tips.

Understanding Metals-API

The Metals-API is designed to deliver real-time and historical exchange rate data for various metals, empowering developers to build innovative applications that leverage this information. With a focus on technological advancement and digital transformation in metal markets, the API provides a comprehensive suite of features that cater to a wide range of use cases. From real-time rates to historical data, the Metals-API is a vital tool for anyone looking to integrate metal market data into their applications.

Key Features of Metals-API

The Metals-API offers several endpoints that allow developers to access a wealth of information. Here are some of the key features:

Latest Rates Endpoint: Depending on your subscription plan, this endpoint provides real-time exchange rate data updated every 60 minutes or more frequently. It allows you to retrieve the latest rates for various metals, including SEK.
Historical Rates Endpoint: Access historical exchange rates dating back to 2019. By appending a specific date to your request, you can retrieve past rates for analysis and reporting.
Bid And Ask Endpoint: This feature enables you to retrieve real-time bid and ask prices for metals, providing insights into market conditions and pricing strategies.
Convert Endpoint: Easily convert any amount from one metal to another or to/from USD. This endpoint is particularly useful for applications that require currency conversion functionalities.
Time-Series Endpoint: Query the API for daily historical rates between two dates of your choice, allowing for in-depth analysis of trends over time.
Fluctuation Endpoint: Track how currencies fluctuate on a day-to-day basis, providing valuable insights into market volatility.
Carat Endpoint: Retrieve information about gold rates by carat, which is essential for jewelers and gold traders.
Lowest/Highest Price Endpoint: Get the lowest and highest price for a specified date, helping you identify market extremes.
Open/High/Low/Close (OHLC) Price Endpoint: This endpoint provides open, high, low, and close prices for a specific time period, essential for traders and analysts.
Historical LME Endpoint: Access historical rates for LME symbols dating back to 2008, which is crucial for those analyzing long-term trends.
API Key: Your unique API key is required to access the API, ensuring secure and authorized usage.
API Response: The exchange rates are delivered relative to USD by default, with all data returned in a structured JSON format.
Supported Symbols Endpoint: Retrieve a constantly updated list of all available currencies and metals supported by the API.
News Endpoint: Stay informed with the latest news articles related to various metals, enhancing your understanding of market dynamics.

Sample API Responses

To illustrate the capabilities of the Metals-API, here are some sample API responses for various endpoints:

Latest Rates Endpoint

{
"success": true,
"timestamp": 1771276033,
"base": "USD",
"date": "2026-02-16",
"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

{
"success": true,
"timestamp": 1771189633,
"base": "USD",
"date": "2026-02-15",
"rates": {
"XAU": 0.000485,
"XAG": 0.03825,
"XPT": 0.000915,
"XPD": 0.000748
},
"unit": "per troy ounce"
}

Time-series Endpoint

{
"success": true,
"timeseries": true,
"start_date": "2026-02-09",
"end_date": "2026-02-16",
"base": "USD",
"rates": {
"2026-02-09": {
"XAU": 0.000485,
"XAG": 0.03825,
"XPT": 0.000915
},
"2026-02-11": {
"XAU": 0.000483,
"XAG": 0.0382,
"XPT": 0.000913
},
"2026-02-16": {
"XAU": 0.000482,
"XAG": 0.03815,
"XPT": 0.000912
}
},
"unit": "per troy ounce"
}

Convert Endpoint

{
"success": true,
"query": {
"from": "USD",
"to": "XAU",
"amount": 1000
},
"info": {
"timestamp": 1771276033,
"rate": 0.000482
},
"result": 0.482,
"unit": "troy ounces"
}

Fluctuation Endpoint

{
"success": true,
"fluctuation": true,
"start_date": "2026-02-09",
"end_date": "2026-02-16",
"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) Price Endpoint

{
"success": true,
"timestamp": 1771276033,
"base": "USD",
"date": "2026-02-16",
"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

{
"success": true,
"timestamp": 1771276033,
"base": "USD",
"date": "2026-02-16",
"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"
}

Integration Tips

Integrating the Metals-API into your applications can significantly enhance your data analytics capabilities. Here are some practical tips for successful integration:

Authentication: Ensure you securely store your API key and include it in every request to authenticate your access.
Rate Limiting: Be mindful of the rate limits associated with your subscription plan. Implement caching strategies to minimize unnecessary API calls.
Error Handling: Develop robust error handling mechanisms to gracefully manage API errors and ensure a seamless user experience.
Data Validation: Validate incoming data to prevent issues related to incorrect or malformed requests.
Performance Optimization: Optimize your API calls by batching requests where possible and minimizing the amount of data retrieved.

Common Use Cases

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

Financial Applications: Integrate real-time metal prices into trading platforms or financial dashboards to provide users with up-to-date information.
Market Analysis Tools: Use historical data to analyze trends and make informed decisions in investment strategies.
E-commerce Platforms: Implement currency conversion features for online stores that deal in precious metals.

Conclusion

The Metals-API is a powerful tool for developers looking to access real-time and historical exchange rate data for various metals, including the Swedish Krona (SEK). With its extensive features and capabilities, the API empowers developers to create innovative applications that leverage real-time data for better decision-making. By understanding the API's endpoints, sample responses, and integration tips, you can effectively harness the potential of the Metals-API in your projects.

For more detailed information, refer to the Metals-API Documentation and explore the Metals-API Supported Symbols for a complete list of available currencies and metals. Start building your next-generation applications today with the Metals-API Website.

Ready to use Metals-API?

Try it now!

Access Swedish Krona (SEK) Exchange Rate API Documentation in JSON Format