Foreca Getting Started: Weather API Integration Guide (2026)

Getting started overview

Integrating with the Foreca Weather API involves a series of steps designed to get developers operational quickly. This guide focuses on initial setup, including account creation, API key acquisition, and executing a foundational API request. Foreca provides various endpoints for current weather, forecasts, and historical data, accessible after authentication with an API key. The process typically begins with registration on the Foreca Developer Portal, followed by key generation and then constructing a request to one of the available API endpoints.

The Developer Plan offers a free tier, allowing up to 500 API calls per month, which is suitable for testing and development purposes. For higher volumes or additional features, paid plans are available, starting with the Basic Plan at €150 per month for 100,000 calls, as detailed on the Foreca pricing page. Understanding the available endpoints and authentication mechanism is central to a successful integration.

Quick Reference Steps

The following table summarizes the essential steps for getting started with the Foreca Weather API:

Create an account and get keys

To begin using the Foreca Weather API, developers must first register for an account on the Foreca Developer Portal. This registration process typically requires an email address and creation of a password. Upon successful registration, users gain access to a personal dashboard within the portal.

Account Registration

1. Navigate to the Foreca Developer Portal signup page.
2. Provide the required information, which typically includes an email address and a secure password.
3. Complete any verification steps, such as email confirmation, if prompted.
4. Log in to your newly created account.

API Key Generation and Retrieval

After logging in, your unique API key will typically be visible on your dashboard or within a dedicated 'API Keys' section. This key is essential for authenticating all requests made to the Foreca API.

1. From your Foreca Developer Portal dashboard, locate the section related to API keys or credentials.
2. Your API key should be displayed there. Copy this key, as it will be required for every API call you make.
3. It is recommended to store your API key securely and avoid embedding it directly into client-side code to prevent unauthorized access. Server-side environments or environment variables are generally preferred for storing sensitive credentials, as described in guides such as those for AWS access key best practices.

Each API key is unique to your account and tracks your usage against your chosen plan, including the free Developer Plan's 500-call monthly limit. If you anticipate exceeding this limit, review the Foreca pricing tiers for a plan that matches your projected usage.

Your first request

Once you have obtained your API key, you can make your first request to the Foreca Weather API. This example demonstrates how to retrieve current weather conditions for a specific location using the current endpoint. The API uses standard HTTP GET requests, and responses are delivered in JSON format.

API Endpoint Selection

For current weather data, the relevant endpoint is typically structured to accept geographical coordinates (latitude and longitude). The Foreca API reference for current weather provides detailed documentation on parameters and response formats.

An example endpoint for current weather might look like this (replace YOUR_API_KEY, LATITUDE, and LONGITUDE with your actual values):

GET https://api.foreca.com/api/v1/current/LATITUDE,LONGITUDE?apikey=YOUR_API_KEY

For this example, we will retrieve the current weather for Helsinki, Finland (latitude: 60.1695, longitude: 24.9354).

Making the Request with cURL

cURL is a command-line tool and library for transferring data with URLs, making it suitable for testing API endpoints. Open your terminal or command prompt and execute the following command, replacing YOUR_API_KEY with your actual key:

curl -X GET "https://api.foreca.com/api/v1/current/60.1695,24.9354?apikey=YOUR_API_KEY"

After executing this command, the API will return a JSON object containing the current weather information for Helsinki.

Example JSON Response

A successful response will typically return a JSON object similar to this (actual values will vary based on current conditions):

{
  "current": {
    "time": "2026-05-29T10:00:00Z",
    "nearestStormDistance": null,
    "nearestStormBearing": null,
    "temperature": 15.2,
    "feelsLikeTemp": 14.0,
    "windSpeed": 4.1,
    "windDir": "NW",
    "windGust": 6.5,
    "relHumidity": 70,
    "dewPoint": 9.8,
    "preciProb": 10,
    "preciType": "none",
    "cloudiness": 50,
    "pressure": 1012.5,
    "visibility": 10000,
    "uvIndex": 4,
    "aqi": null,
    "aqiDescription": null,
    "aqiCategory": null
  }
}

This response includes fields such as temperature, windSpeed, relHumidity, and other relevant current weather parameters. You can parse this JSON response in your application code to extract the specific data points needed.

Common next steps

After successfully making your first API call and receiving a response, several common next steps can enhance your integration with the Foreca Weather API:

• Explore Other Endpoints: The Foreca API offers various endpoints beyond current weather, including daily and hourly forecasts, as well as historical data. Explore these to broaden the scope of weather information you can integrate into your application.
• Implement Error Handling: Develop robust error handling mechanisms in your application to gracefully manage API errors, such as invalid API keys, rate limits, or malformed requests. The API typically returns HTTP status codes and error messages to help diagnose issues.
• Rate Limit Management: Be aware of the rate limits associated with your Foreca plan. Implement strategies like caching API responses or using exponential backoff for retries to ensure you stay within your allocated call limits and prevent service interruptions. Information on rate limits is usually available in the Foreca developer documentation.
• Choose a Development Language/SDK: While Foreca does not provide official SDKs, you can use standard HTTP client libraries available in most programming languages (e.g., Python's requests, JavaScript's fetch, Java's HttpClient) to interact with the API. Consider building a wrapper for common API calls in your chosen language.
• Data Parsing and Display: Refine your application's logic to parse the JSON responses efficiently and display the weather data in a user-friendly format within your application.
• Secure API Key Storage: Reiterate the importance of securing your API key. For server-side applications, consider environment variables; for client-side applications that interact with a backend, proxying requests through your own server can prevent exposing the key. Further guidance on securing API keys can be found in general API security best practices, such as those discussed by Google Developers on API security.
• Monitor Usage: Regularly check your API usage on the Foreca Developer Portal dashboard to monitor your call volume and ensure you remain within your plan's limits.

Troubleshooting the first call

Encountering issues during your first API call is common. Here are some troubleshooting steps for typical problems:

• Invalid API Key:
  • Symptom: Receiving an HTTP 401 Unauthorized or 403 Forbidden error, often with a message indicating an invalid or missing API key.
  • Solution: Double-check that your API key is correctly copied from your Foreca Developer Portal dashboard and included in the request URL as apikey=YOUR_API_KEY. Ensure there are no leading/trailing spaces or incorrect characters.
• Incorrect Endpoint URL:
  • Symptom: Receiving an HTTP 404 Not Found error.
  • Solution: Verify the endpoint URL against the Foreca API Reference. Ensure the base URL (https://api.foreca.com/api/v1/) and the specific resource path (e.g., current/LATITUDE,LONGITUDE) are accurate.
• Missing or Invalid Parameters:
  • Symptom: Receiving an HTTP 400 Bad Request error, sometimes with a message detailing missing required parameters.
  • Solution: Review the API documentation for the specific endpoint you are using. Ensure all mandatory query parameters (like latitude and longitude for location-based endpoints) are included and correctly formatted. For geographical coordinates, ensure they are valid numerical values within expected ranges.
• Rate Limit Exceeded:
  • Symptom: Receiving an HTTP 429 Too Many Requests error.
  • Solution: If you are on the free Developer Plan, you might have exceeded the 500 calls/month limit. Check your usage on the Foreca dashboard. Wait for the next billing cycle or consider upgrading to a paid plan if you require higher call volumes.
• Network Connectivity Issues:
  • Symptom: Request timeouts or connection refused errors.
  • Solution: Verify your internet connection. If making requests from a restricted network, check firewall rules that might be blocking outbound API calls.
• CORS Issues (for browser-based requests):
  • Symptom: Browser console errors related to Cross-Origin Resource Sharing policies.
  • Solution: Direct browser-based requests to third-party APIs often encounter CORS restrictions. It's generally recommended to call the Foreca API from a server-side application to proxy the request and avoid CORS issues.