1Forge

Overview

1Forge offers a specialized API for foreign exchange (forex) data, providing both real-time and historical currency exchange rates. Established in 2017, the service targets developers and organizations building applications that require accurate and timely financial market information. This includes developing forex trading applications, financial dashboards, currency conversion tools, and systems for displaying real-time currency values.

The core offering revolves around its real-time forex data API, which delivers current exchange rates for over 100 currency pairs. These rates are updated frequently, allowing applications to reflect market movements. In addition to live data, 1Forge provides access to historical forex data, which can be used for back-testing trading strategies, trend analysis, or reporting. A dedicated currency converter API is also available, simplifying the process of converting amounts between different currencies based on the latest rates.

1Forge primarily serves use cases where precision and low-latency access to currency data are critical. This includes fintech startups, financial institutions, and e-commerce platforms that operate internationally and need to display prices in local currencies or process multi-currency transactions. The API is delivered via standard REST endpoints, returning data in JSON format, which is a common practice for web APIs due to its lightweight nature and broad compatibility with programming languages and platforms, as described by Mozilla Developer Network's REST documentation. The API also includes a free tier, offering 100 requests per day, which allows developers to test and integrate the service before committing to a paid plan.

The platform is designed to minimize integration complexity, offering SDKs for common programming languages such as JavaScript, PHP, and Python. These SDKs provide pre-built functions and abstractions to interact with the API, reducing the amount of boilerplate code developers need to write. The documentation includes code examples to facilitate straightforward implementation. For example, a developer building a tool to compare the effectiveness of different currency exchange rate providers might use the 1Forge API alongside alternatives like Open Exchange Rates' API to evaluate data accuracy and update frequency.

Applications range from simple currency display widgets on websites to complex algorithmic trading systems that rely on precise rate execution. Financial analysis tools can also leverage the historical data to identify trends and patterns in currency movements over time. The API's design emphasizes ease of use, making it accessible for developers with varying levels of experience in financial data integration.

Key features

• Real-time Forex Data API: Provides current exchange rates for over 100 currency pairs, updated frequently to reflect market conditions.
• Historical Forex Data API: Offers access to past exchange rates, enabling historical analysis, trend identification, and back-testing of financial models.
• Currency Converter API: Facilitates the conversion of amounts between various currencies using up-to-date exchange rates.
• Simple REST Endpoints: Utilizes standard RESTful architecture for API calls, providing predictable resource-oriented URLs and JSON responses.
• SDKs for Popular Languages: Supports integration with pre-built libraries for JavaScript, PHP, and Python, streamlining development.
• Extensive Currency Pair Coverage: Covers a wide range of major and minor currency pairs, suitable for global financial applications.
• Free Developer Tier: Offers 100 API requests per day for evaluation and low-volume applications.

Pricing

1Forge offers a free tier and several paid subscription plans, structured to accommodate varying levels of API usage and feature requirements. Pricing is based primarily on the number of API requests per month.

Pricing is accurate as of 2026-05-28. For the most current and detailed pricing information, including enterprise options and specific feature breakdowns, refer to the official 1Forge pricing page.

Common integrations

• Financial Dashboards: Displaying real-time currency fluctuations and conversion rates for portfolio tracking or market monitoring.
• E-commerce Platforms: Converting product prices to local currencies for international customers or processing multi-currency transactions.
• Trading Applications: Providing live forex rates for automated trading systems or manual trading decision support.
• Budgeting and Expense Trackers: Automatically converting foreign expenses into a base currency for personal or business financial management.
• Travel Applications: Offering currency conversion tools for travelers to estimate costs abroad.
• Data Analytics Tools: Integrating historical forex data for economic analysis, trend forecasting, and research.

Alternatives

• Open Exchange Rates: Provides real-time and historical foreign exchange rates, with a focus on ease of integration and a free plan.
• ExchangeRate-API: Offers current and historical currency exchange rates, known for its clear documentation and straightforward API.
• Fixer: Delivers real-time and historical exchange rates for 170 world currencies, backed by a reliable data infrastructure.

Getting started

To begin using the 1Forge API, you typically need to sign up for an API key on their website. Once you have your key, you can make requests to their endpoints. Here's a Python example demonstrating how to fetch real-time exchange rates using the requests library.

import requests

API_KEY = 'YOUR_API_KEY' # Replace with your actual 1Forge API key
BASE_URL = 'https://forex.1forge.com/1.0.3'

def get_realtime_quotes(symbols):
    # symbols should be a comma-separated string, e.g., 'EURUSD,GBPUSD'
    endpoint = f'{BASE_URL}/quotes?pairs={symbols}&api_key={API_KEY}'
    try:
        response = requests.get(endpoint)
        response.raise_for_status()  # Raise an exception for HTTP errors
        data = response.json()
        return data
    except requests.exceptions.RequestException as e:
        print(f"Error fetching data: {e}")
        return None

def get_currency_conversion(from_currency, to_currency, quantity):
    endpoint = f'{BASE_URL}/convert?from={from_currency}&to={to_currency}&quantity={quantity}&api_key={API_KEY}'
    try:
        response = requests.get(endpoint)
        response.raise_for_status() # Raise an exception for HTTP errors
        data = response.json()
        return data
    except requests.exceptions.RequestException as e:
        print(f"Error performing conversion: {e}")
        return None

if __name__ == "__main__":
    # Example 1: Get real-time quotes for EUR/USD and GBP/USD
    print("\n--- Real-time Quotes ---")
    quotes = get_realtime_quotes('EURUSD,GBPUSD')
    if quotes:
        for quote in quotes:
            print(f"Pair: {quote['symbol']}, Bid: {quote['bid']}, Ask: {quote['ask']}, Price: {quote['price']}, Timestamp: {quote['timestamp']}")

    # Example 2: Convert 100 USD to EUR
    print("\n--- Currency Conversion ---")
    converted_amount = get_currency_conversion('USD', 'EUR', 100)
    if converted_amount:
        print(f"100 USD equals {converted_amount['value']:.2f} EUR")

    # Example 3: Get status information (rate limits, etc.)
    print("\n--- API Status ---")
    status_endpoint = f'{BASE_URL}/quota?api_key={API_KEY}'
    try:
        status_response = requests.get(status_endpoint)
        status_response.raise_for_status()
        status_data = status_response.json()
        print(f"API Status: {status_data}")
    except requests.exceptions.RequestException as e:
        print(f"Error fetching status: {e}")

This Python script defines functions to retrieve real-time quotes and perform currency conversions. Replace 'YOUR_API_KEY' with your actual 1Forge API key obtained from their developer documentation. The requests.raise_for_status() method is used to automatically catch and report HTTP errors, which is a recommended practice for robust API integrations.