Access Guinean Franc (GNF) Exchange Rates API Documentation in JSON Format

In today's fast-paced financial landscape, having access to real-time exchange rates is crucial for developers and businesses alike. The Metals-API provides a powerful solution for retrieving exchange rates, including the Guinean Franc (GNF), in a structured JSON format. This blog post will delve into the capabilities of the Metals-API, focusing on its innovative features, technical specifications, and practical applications for developers looking to integrate exchange rate data into their applications.

Metals-API Information

About Tellurium (TE)

As we explore the world of metals and their market dynamics, it’s essential to consider the role of digital transformation in metal markets. The integration of technological advancements and data analytics has revolutionized how we interact with metal prices. Smart technology is now at the forefront, enabling real-time insights and predictive analytics that empower developers to create next-generation applications.

With the Metals-API, developers can harness the power of real-time data to build applications that not only track current prices but also analyze trends and fluctuations. This API is designed to facilitate seamless integration, allowing for innovative use cases that can transform how businesses operate in the metal markets.

API Description

The Metals-API is a comprehensive JSON API that provides access to real-time and historical exchange rates for various metals, including precious and industrial metals. By leveraging this API, developers can create applications that require up-to-date pricing information, historical data analysis, and conversion functionalities. The API's capabilities extend beyond mere data retrieval; it empowers developers to build applications that can analyze market trends, forecast price movements, and make informed decisions based on real-time data.

For more detailed information, you can refer to the Metals-API Documentation, which outlines all available features and endpoints.

Key Features and Endpoints

The Metals-API offers a variety of endpoints that cater to different needs. Here are some of the key features:

Latest Rates Endpoint: Depending on your subscription plan, this endpoint provides real-time exchange rate data updated at intervals of 60 minutes, 10 minutes, or even more frequently. This feature is essential for applications that require the most current pricing information.
Historical Rates Endpoint: Access historical rates dating back to 2019. By appending a specific date in the format YYYY-MM-DD, developers can retrieve past exchange rates, which is invaluable for trend analysis and forecasting.
Bid And Ask Endpoint: This feature allows developers to retrieve real-time bid and ask prices, providing insights into market liquidity and pricing dynamics.
Convert Endpoint: The API includes a currency conversion endpoint that enables users to convert amounts between different currencies, including metals and fiat currencies.
Time-Series Endpoint: This endpoint allows querying for daily historical rates between two specified dates, facilitating in-depth analysis of price movements over time.
Fluctuation Endpoint: Developers can track how currencies fluctuate on a day-to-day basis, providing insights into market volatility and trends.
Carat Endpoint: Retrieve information about gold rates by carat, which is particularly useful for jewelers and traders in the precious metals market.
Lowest/Highest Price Endpoint: This endpoint allows querying for the lowest and highest prices of metals over a specified period, aiding in market analysis.
Open/High/Low/Close (OHLC) Price Endpoint: Access detailed OHLC data for specific time periods, which is crucial for technical analysis and trading strategies.
Historical LME Endpoint: Access historical rates for LME symbols dating back to 2008, providing a comprehensive view of market trends.
API Key: Each user is assigned a unique API key that 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 and ease of use for developers.
Available Endpoints: The Metals-API features 14 different endpoints, each designed to provide specific functionalities tailored to user needs.
Supported Symbols Endpoint: This constantly updated endpoint returns all available currencies and metals, ensuring developers have access to the latest information.
News Endpoint: Retrieve the latest news articles related to various metals, keeping users informed about market developments.

List of Symbols

The 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": 1777108060,
"base": "USD",
"date": "2026-04-25",
"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": 1777021660,
"base": "USD",
"date": "2026-04-24",
"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": "2026-04-18",
"end_date": "2026-04-25",
"base": "USD",
"rates": {
"2026-04-18": {
"XAU": 0.000485,
"XAG": 0.03825,
"XPT": 0.000915
},
"2026-04-20": {
"XAU": 0.000483,
"XAG": 0.0382,
"XPT": 0.000913
},
"2026-04-25": {
"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": 1777108060,
"rate": 0.000482
},
"result": 0.482,
"unit": "troy ounces"
}

Fluctuation Endpoint

Track rate fluctuations between two dates.

{
"success": true,
"fluctuation": true,
"start_date": "2026-04-18",
"end_date": "2026-04-25",
"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": 1777108060,
"base": "USD",
"date": "2026-04-25",
"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": 1777108060,
"base": "USD",
"date": "2026-04-25",
"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

In conclusion, the Metals-API provides a robust and flexible solution for developers seeking to access real-time and historical exchange rates for metals, including the Guinean Franc (GNF). With its comprehensive set of features, including various endpoints for retrieving latest rates, historical data, and conversion functionalities, the API empowers developers to create innovative applications that can analyze market trends and make informed decisions.

For more information on how to utilize the Metals-API effectively, refer to the Metals-API Documentation and explore the Metals-API Supported Symbols for a complete list of available currencies and metals. By integrating this API into your applications, you can stay ahead in the competitive landscape of metal trading and finance.

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Access Guinean Franc (GNF) Exchange Rates API Documentation in JSON Format