Frequently Asked Questions

FreeAPIHub is a platform that aggregates free APIs and AI models, making it easy for developers to discover, test, and integrate them into their projects without cost. We provide a centralized directory with detailed documentation and usage examples.

Yes, FreeAPIHub itself is completely free to use. However, some APIs listed on our platform may have their own usage limits or premium tiers. We always clearly indicate if an API has any limitations or costs associated with it.

You can use our search bar at the top of the page to find APIs by name, category, or functionality. You can also browse through our categorized listings or use advanced filters to narrow down results based on authentication type, data format, or popularity.

Once you find an API you want to use, click on its listing to view detailed documentation. Most APIs provide code samples in multiple languages, endpoint descriptions, and authentication instructions. You can also test endpoints directly in our API Playground.

It depends on the specific API. Some APIs are completely open and don't require authentication, while others require an API key for access. For APIs requiring keys, we provide clear instructions on how to obtain one, usually through a simple registration process.

Rate limits vary by API provider. Each API listing clearly states its rate limits in the documentation. Some APIs offer generous limits for free, while others may have stricter limitations. We monitor API status to ensure listed limits are accurate.

No, you can browse and access many APIs without an account. However, creating a free account unlocks additional features like API key management, usage analytics, saved favorites, and personalized recommendations based on your interests.

Click the 'Sign Up' button in the top right corner. You can register using your email, or through GitHub/Google for quicker access. Account creation is completely free and takes less than a minute.

With a free account, you get: API key management dashboard, usage analytics, ability to save favorite APIs, personalized recommendations, API status notifications, and access to our community forums where you can ask questions and share projects.

These errors typically indicate authentication issues. Check that you're including the correct API key in your requests, and that your key hasn't expired or been revoked. Also verify that you have the necessary permissions for the endpoint you're accessing.

First, check our API Status page to see if there's a known issue. If the problem persists, try the following: verify your API key, check for updated documentation, clear your cache, and test with different parameters. If none of these work, report the issue through our support channels.

On each API's detail page, you'll find a 'Report Issue' button. Clicking this will open a form where you can describe the problem. Our team reviews these reports daily and works with API providers to resolve issues quickly.

We offer a wide range of AI models including natural language processing (NLP), computer vision, speech recognition, recommendation systems, and generative models. These range from pre-trained models you can integrate directly to customizable solutions.

Yes! Most AI models come with interactive playgrounds where you can test inputs and see outputs in real-time. This allows you to evaluate model performance with your specific use case before writing any integration code.

Usage limits vary by model. Some offer completely free unlimited access, while others have daily or monthly request limits. Premium models may offer additional capabilities or higher limits. All limitations are clearly stated in each model's documentation.

We welcome API submissions! Visit our 'Submit API' page and fill out the form with your API's details, documentation, and authentication requirements. Our team reviews submissions within 3-5 business days and notifies you once your API is listed.

APIs must have: clear documentation, a free tier or completely free access, stable uptime (≥95%), proper error handling, and standard authentication methods. We prioritize well-documented APIs with practical use cases that benefit developers.

Absolutely! We encourage community contributions. Each API page has an 'Improve Documentation' button where you can suggest edits, provide code samples, or clarify instructions. All contributions are reviewed before being published.

We prioritize security through encryption (TLS 1.3 for all data in transit), regular security audits, and strict access controls. We never store your API keys in plaintext, and we follow GDPR and CCPA compliance standards to protect your privacy.

Most APIs on our platform allow commercial use, but licensing varies by provider. Always check the specific API's terms of use before integrating into commercial applications. We clearly indicate any usage restrictions on each API's detail page.