How to retrieve Guwahati Gold 18k (GUWA-18k) prices with an API call

In the ever-evolving landscape of precious metals trading, the ability to retrieve real-time data is paramount for developers and traders alike. One such valuable asset is Guwahati Gold 18k (GUWA-18k), a popular choice among investors. This blog post delves into how to effectively retrieve GUWA-18k prices using the Metals-API, a powerful tool that provides comprehensive data on various metals, including gold.

Understanding Gold (XAU) and Its Market Dynamics

Gold, represented by the symbol XAU, has long been a cornerstone of the global financial system. Its value is influenced by a myriad of factors including market demand, geopolitical stability, and economic indicators. The digital transformation in precious metals trading has led to the integration of advanced data analytics and technology, enabling traders to make informed decisions based on real-time insights.

With the rise of digital asset solutions, the trading of gold has become more accessible. The Metals-API plays a crucial role in this transformation, allowing developers to build applications that can provide up-to-the-minute pricing information, historical data analysis, and market trends. This API empowers users to harness the power of data analytics for better decision-making in the precious metals market.

API Overview

The Metals-API is designed to provide developers with a robust set of tools for accessing real-time and historical data on various metals. The API offers a wide range of endpoints that cater to different needs, from retrieving the latest rates to analyzing historical trends. This versatility makes it an essential resource for anyone involved in trading or investing in precious metals.

Key Features of Metals-API

Metals-API boasts several key features that enhance its functionality:

• 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 ensures that traders have access to the most current pricing information.
• Historical Rates Endpoint: Users can access historical rates dating back to 2019, allowing for comprehensive analysis of price trends over time. By appending a specific date to the API call, developers can retrieve past pricing data for XAU and other metals.
• Bid and Ask Endpoint: This feature provides real-time bid and ask prices, essential for traders looking to make informed decisions based on market conditions.
• Convert Endpoint: The API includes a currency conversion feature, enabling users to convert amounts between different metals or to/from USD, facilitating easier trading and investment strategies.
• Time-Series Endpoint: This endpoint allows users to query daily historical rates between two chosen dates, providing insights into price movements over specific periods.
• Fluctuation Endpoint: Users can track how prices fluctuate on a day-to-day basis, which is crucial for understanding market volatility and making timely trading decisions.
• Carat Endpoint: This unique feature allows users to retrieve gold rates by carat, catering to specific market needs.
• Lowest/Highest Price Endpoint: This endpoint enables users to query the API for the lowest and highest prices within a specified timeframe, aiding in market analysis.
• Open/High/Low/Close (OHLC) Price Endpoint: Users can obtain OHLC data for specific time periods, which is vital for technical analysis and trading strategies.
• Historical LME Endpoint: Access historical rates for LME symbols dating back to 2008, providing a long-term view of market trends.
• API Key: Each user is assigned a unique API key, which must be included in requests to authenticate and authorize access to the API.
• API Response: The API delivers exchange rates relative to USD by default, ensuring consistency in data presentation.
• Available Endpoints: With 14 different endpoints, the Metals-API provides a comprehensive suite of tools for developers.
• 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.

Example API Calls and Responses

Understanding how to interact with the Metals-API is crucial for developers. Below are examples of various API calls and their corresponding responses:

Latest Rates Endpoint

To get real-time exchange rates for all available metals, you would use the following API call:

GET https://metals-api.com/api/latest?access_key=YOUR_API_KEY

Example Response:

{
"success": true,
"timestamp": 1765760417,
"base": "USD",
"date": "2025-12-15",
"rates": {
"XAU": 0.000482,
"XAG": 0.03815,
"XPT": 0.000912,
"XPD": 0.000744
},
"unit": "per troy ounce"
}

Historical Rates Endpoint

To access historical exchange rates for any date since 1999, you would use:

GET https://metals-api.com/api/historical?access_key=YOUR_API_KEY&date=2025-12-14

Example Response:

{
"success": true,
"timestamp": 1765674017,
"base": "USD",
"date": "2025-12-14",
"rates": {
"XAU": 0.000485,
"XAG": 0.03825,
"XPT": 0.000915
},
"unit": "per troy ounce"
}

Time-Series Endpoint

To get exchange rates for a specific time period, the following call can be made:

GET https://metals-api.com/api/timeseries?access_key=YOUR_API_KEY&start_date=2025-12-08&end_date=2025-12-15

Example Response:

{
"success": true,
"timeseries": true,
"start_date": "2025-12-08",
"end_date": "2025-12-15",
"base": "USD",
"rates": {
"2025-12-08": {
"XAU": 0.000485,
"XAG": 0.03825
},
"2025-12-10": {
"XAU": 0.000483,
"XAG": 0.0382
},
"2025-12-15": {
"XAU": 0.000482,
"XAG": 0.03815
}
},
"unit": "per troy ounce"
}

Convert Endpoint

To convert any amount from one metal to another or to/from USD, the following call can be made:

GET https://metals-api.com/api/convert?access_key=YOUR_API_KEY&from=USD&to=XAU&amount=1000

Example Response:

{
"success": true,
"query": {
"from": "USD",
"to": "XAU",
"amount": 1000
},
"info": {
"timestamp": 1765760417,
"rate": 0.000482
},
"result": 0.482,
"unit": "troy ounces"
}

Fluctuation Endpoint

To track rate fluctuations between two dates, you can use:

GET https://metals-api.com/api/fluctuation?access_key=YOUR_API_KEY&start_date=2025-12-08&end_date=2025-12-15

Example Response:

{
"success": true,
"fluctuation": true,
"start_date": "2025-12-08",
"end_date": "2025-12-15",
"base": "USD",
"rates": {
"XAU": {
"start_rate": 0.000485,
"end_rate": 0.000482,
"change": -3.0e-6,
"change_pct": -0.62
}
},
"unit": "per troy ounce"
}

OHLC (Open/High/Low/Close) Price Endpoint

To get OHLC data for a specific time period, the following call can be made:

GET https://metals-api.com/api/open-high-low-close?access_key=YOUR_API_KEY&date=2025-12-15

Example Response:

{
"success": true,
"timestamp": 1765760417,
"base": "USD",
"date": "2025-12-15",
"rates": {
"XAU": {
"open": 0.000485,
"high": 0.000487,
"low": 0.000481,
"close": 0.000482
}
},
"unit": "per troy ounce"
}

Bid/Ask Endpoint

To get current bid and ask prices for metals, the following call can be made:

GET https://metals-api.com/api/bid-ask?access_key=YOUR_API_KEY

Example Response:

{
"success": true,
"timestamp": 1765760417,
"base": "USD",
"date": "2025-12-15",
"rates": {
"XAU": {
"bid": 0.000481,
"ask": 0.000483,
"spread": 2.0e-6
}
},
"unit": "per troy ounce"
}

Common Use Cases for Metals-API

The versatility of the Metals-API allows for a wide range of applications:

• Real-Time Trading Applications: Developers can create applications that provide real-time pricing data, enabling traders to make informed decisions quickly.
• Historical Data Analysis: Analysts can utilize historical rates to identify trends and make predictions about future price movements.
• Portfolio Management: Investors can track the performance of their metal investments over time, adjusting their strategies based on real-time data.
• Market Research: Researchers can analyze fluctuations and trends in the precious metals market, providing valuable insights for investment strategies.

Best Practices for Using Metals-API

To maximize the effectiveness of the Metals-API, consider the following best practices:

• Rate Limiting: Be mindful of the API's rate limits to avoid throttling. Implement caching strategies to minimize unnecessary requests.
• Data Validation: Always validate and sanitize input data to prevent errors and ensure accurate API responses.
• Error Handling: Implement robust error handling to gracefully manage API errors and provide users with meaningful feedback.
• Security: Keep your API key secure and avoid exposing it in client-side code. Use server-side requests whenever possible.

Conclusion

The Metals-API is an invaluable resource for developers and traders looking to access real-time and historical data on precious metals like Guwahati Gold 18k (GUWA-18k). With its comprehensive set of features, including the latest rates, historical data, and conversion capabilities, the API empowers users to make informed trading decisions. By understanding how to effectively utilize the various endpoints, developers can build innovative applications that enhance the trading experience.

For more information, visit the Metals-API Website and explore the Metals-API Documentation for detailed guidance on implementation. Additionally, check out the Metals-API Supported Symbols page to familiarize yourself with the available metal symbols and their specifications.