Access Silver Sep 2025 (SIU25) Historical Price Information using this API

In the world of precious metals, silver (XAG) holds a significant place due to its diverse industrial applications and investment potential. As we look towards the future, particularly for the Silver September 2025 (SIU25) contract, understanding how to access historical price information is crucial for traders, analysts, and developers alike. The Metals-API provides a robust solution for retrieving real-time and historical data, empowering users to make informed decisions based on accurate market insights.

About Silver (XAG)

Silver is not just a precious metal; it is a vital component in various industrial applications, including electronics, solar panels, and medical devices. The innovation in technology has led to an increased demand for silver, particularly in smart manufacturing processes where efficiency and precision are paramount. As industries evolve, the integration of digital market analysis tools becomes essential, allowing businesses to stay ahead of market trends.

The digital transformation of the silver market is further enhanced by supply chain technologies that ensure transparency and efficiency. By leveraging real-time data, companies can optimize their operations, reduce costs, and improve overall productivity. The Metals-API plays a pivotal role in this landscape, providing developers with the tools necessary to build next-generation applications that harness the power of real-time metals data.

API Description

The Metals-API is a powerful tool designed for developers seeking to access comprehensive metals data, including silver prices. This API offers a range of functionalities that allow users to retrieve real-time and historical price information, making it an invaluable resource for financial analysts and traders. With its focus on innovation and technological advancement, the Metals-API empowers users to create applications that can analyze market trends, track price fluctuations, and convert currencies seamlessly.

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

Key Features and Endpoints

The Metals-API boasts a variety of endpoints that cater to different needs, each providing unique functionalities that can be leveraged for various applications. Here are some of the key features:

Latest Rates Endpoint: This endpoint provides real-time exchange rate data for silver and other metals, updated every 60 minutes or more frequently depending on your subscription plan. This feature is essential for traders who need up-to-the-minute pricing information.
Historical Rates Endpoint: Users can access historical rates dating back to 2019 by appending a specific date to the API call. This feature is particularly useful for analyzing past market trends and making predictions based on historical data.
Bid And Ask Endpoint: This powerful feature allows users to retrieve real-time bid and ask prices for silver, providing insights into market liquidity and pricing dynamics.
Convert Endpoint: The Metals-API includes a currency conversion feature that enables users to convert amounts between different metals or to/from USD, facilitating seamless transactions.
Time-Series Endpoint: This endpoint allows users to query the API for daily historical rates between two specified dates, making it easier to analyze trends over time.
Fluctuation Endpoint: Users can track how silver prices fluctuate on a day-to-day basis, providing insights into market volatility and helping traders make informed decisions.
Carat Endpoint: This feature provides information about gold rates by carat, which can be useful for jewelers and investors in the gold market.
Lowest/Highest Price Endpoint: Users can query the API to obtain the lowest and highest prices for silver over a specified period, aiding in market analysis.
Open/High/Low/Close (OHLC) Price Endpoint: This endpoint provides detailed OHLC data for silver, allowing traders to analyze price movements and make strategic decisions.
Historical LME Endpoint: Access historical rates for LME symbols dating back to 2008, which is crucial for those involved in trading on the London Metal Exchange.
API Key: Each user is assigned a unique API key that must be included in API requests to authenticate access.
API Response: The Metals-API delivers exchange rates relative to USD, ensuring consistency and reliability in the data provided.
Available Endpoints: With 14 different API endpoints, users can access a wide range of functionalities tailored to their specific needs.
Supported Symbols Endpoint: This endpoint returns a constantly updated list of all available currencies and metals, ensuring users have access to the latest information.
News Endpoint: Retrieve the latest news articles related to various metals, keeping users informed about market developments.

For a complete list of supported symbols, 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": 1778372006,
"base": "USD",
"date": "2026-05-10",
"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

Access historical exchange rates for any date since 1999:

{
"success": true,
"timestamp": 1778285606,
"base": "USD",
"date": "2026-05-09",
"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": "2026-05-03",
"end_date": "2026-05-10",
"base": "USD",
"rates": {
"2026-05-03": {
"XAU": 0.000485,
"XAG": 0.03825,
"XPT": 0.000915
},
"2026-05-05": {
"XAU": 0.000483,
"XAG": 0.0382,
"XPT": 0.000913
},
"2026-05-10": {
"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": 1778372006,
"rate": 0.000482
},
"result": 0.482,
"unit": "troy ounces"
}

Fluctuation Endpoint

Track rate fluctuations between two dates:

{
"success": true,
"fluctuation": true,
"start_date": "2026-05-03",
"end_date": "2026-05-10",
"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"
}

OHLC (Open/High/Low/Close) Endpoint

Get OHLC data for a specific time period:

{
"success": true,
"timestamp": 1778372006,
"base": "USD",
"date": "2026-05-10",
"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"
}

Bid/Ask Endpoint

Get current bid and ask prices for metals:

{
"success": true,
"timestamp": 1778372006,
"base": "USD",
"date": "2026-05-10",
"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"
}

Conclusion

Accessing historical price information for silver, particularly for the Silver September 2025 (SIU25) contract, is made seamless through the Metals-API. With its comprehensive range of endpoints, developers can retrieve real-time and historical data, analyze market trends, and make informed decisions based on accurate insights. The API's capabilities extend beyond mere data retrieval; it empowers users to build sophisticated applications that can adapt to the ever-changing landscape of the metals market.

By leveraging the features of the Metals-API, such as the Latest Rates, Historical Rates, and Time-Series endpoints, users can gain a deeper understanding of silver's price movements and fluctuations. The integration of these functionalities into applications can enhance decision-making processes, optimize trading strategies, and ultimately lead to more successful outcomes in the metals market.

For further exploration of the Metals-API's capabilities, refer to the Metals-API Documentation and discover the full range of supported symbols on the Metals-API Supported Symbols page. As the market continues to evolve, staying informed and equipped with the right tools will be essential for success in the precious metals arena.

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Access Silver Sep 2025 (SIU25) Historical Price Information using this API