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Revolutionize Your Apps With These Free APIs

best free APIs

APIs provide developers with a number of useful tools for building applications, websites, and services. From cloud APIs to mobile apps, many companies provide their customer’s access to these resources through an API that allows custom development. In 2023, the best free APIs will continue to provide these benefits to developers in order to enhance their products.

So, how many types of APIs are out there, and what is the best among all? In this write-up, we have compiled an exclusive free API list that can potentially put the fire in your dummy code. 

But first, let’s catch up on some crucial ‘quickies’…

Free Public APIs — Magic Wand for Modern Developers

In today’s economy, applications have to be available in multiple places at the same time. This can be accomplished through public APIs (Application Programming Interfaces). An open API allows a third party to “tap into” your application and become part of it on their “own” terms.

Types of Free & Public APIs

Open APIs can be categorized on mainly three prime components: protocols, functions, and access levels.

Depending upon these factors, there are different APIs, and they all have different uses. Some may be used to access data or interact with a service, while others may be designed to give developers access to a particular technology. The most common types include private, public, and internal APIs.

Why Is It an Intelligent Decision to Use Free APIs?

As a developer, why would you want to use free APIs? Obviously, because they provide far more functionality than paid APIs do. However, there are also many benefits to buying a premium API, such as immediate access and full documentation.

In a nutshell, they come with multiple blessings, such as:

Data Innovation

With the increasing number of services and applications, we are going to have more data coming in. We need to take care of our data, which is why it is important to use free APIs as much as possible just so that we can avoid wasting money on high-cost services.

Business Intelligence

You should use a free API because it helps you to focus on the core of what you are trying to accomplish and examine other features that can be added later. The ever-growing market also has a large range of options for choosing the best for your business.

Saves Costs

Free APIs are basically a way for developers to get the source code for their app without having to pay any money. You can build applications without spending a dime, but saving money is not the only benefit of using a free API: They also make it easier to integrate with other services and provide technology solutions to your business needs!

Top Public APIs You Will Love To Have

Here is the list of the top public APIs that can dramatically build powerful applications for you just like a cakewalk:-

Bankdata API

Bankdata API is a powerful tool to access to a wide range of financial data and services, allowing developers to build powerful financial applications quickly and easily. The platform is designed to be simple and intuitive, making it accessible to developers of all skill levels.

One of the most notable features of Bankdata API is its ability to provide access to a wealth of financial data, including account balances, transactions, payment history, and more. This data can be used to power a variety of financial applications, such as budgeting tools, financial dashboards, and investment platforms.

Other features of Bankdata API include the ability to:

  • Connect to a wide range of financial institutions, including banks, credit unions, and investment firms
  • Retrieve data in real-time, ensuring that applications are always up-to-date
  • Securely store and transmit sensitive financial information, such as account numbers and transaction details
  • Customize data retrieval and processing based on the needs of the application
  • Integrate with a wide range of programming languages and frameworks, including Python, Java, and Ruby.

For further details, check out their comprehensive and responsive documentation.

Overall, Bankdata API is a powerful tool for developers who need to access and analyze financial data. With its easy-to-use interface and robust feature set, it is a great choice for businesses, startups, and individuals who are looking to build innovative financial applications. Click here to register for your FREE Bankdata API plan!

Weather APIs

Weather API works wonders in retrieving real-time current weather data and forecast information for any location in the world. Weatherstack, OpenWeatherMap, and Weather Underground are some of the most reputed and sought weather APIs.

Using these APIs, you can integrate weather data into your applications, providing users with accurate weather forecasts and weather-related information.

Additionally, the API provides historical weather data, which can be used for research and analysis purposes. They can help you get information like – temperature, humidity, pressure, wind speed, and cloudiness. 

Geospatial APIs

Built on comprehensive map data, Location APIs, such as Google Maps (28,000 free Map visits monthly), Mapbox, OpenLayers, and TomTom, are some of the exceptional free APIs with the ability to add interactive maps and location-based services to applications. With them, developers can add features such as directions, traffic updates, and location searches to their applications.

They also come with an extraordinary array of advanced features. Such as geocoding, which allows developers to convert addresses into geographic coordinates. With this feature, developers can easily create applications that rely on location-based data. Similarly, you can also incorporate APIs for IP addresses, like Ipstack, to get insightful geolocation data of website visitors.



As its name suggests, Numverify is a revolutionary API to verify numbers, including carrier, line type, and geographic location.

Numverify boasts a simple and user-friendly interface that allows users to quickly and easily enter phone numbers for verification. The application can handle both single and bulk requests, making it a great choice for businesses and organizations that need to verify large numbers of phone numbers.

One of the most notable features of Numverify is its ability to accurately identify the geographic location of a phone number. This feature can be particularly useful for businesses that want to ensure that they are targeting the right markets with their marketing campaigns. Or for individuals who want to know the origin of an incoming call. Check out the documentation here to get more insight into this wonderful API.


  • Verify phone numbers from over 200 countries
  • Check if a phone number is active and in use
  • Identify the carrier and line type (mobile, landline, or VOIP)
  • Provide additional information, such as the country code and time zone
  • Receive detailed reports on each phone number, including historical data.

Overall, Numverify is a powerful tool that can be used for a wide range of applications, from marketing and research to fraud prevention and security. Tap here to start your FREE sign up for Numverify!

Zenserp API

Zenserp API

Data scraping has never been as easy as before Zenserp! Zenserp API is a powerful name in the web scraping world. This API is designed to provide easy access to a wealth of data from search engines like Google, Bing, Yahoo, and more. With Zenserp API, users can easily retrieve data from search engine result pages (SERPs), YouTube, and Google Shopping Product Page API and use it to power a variety of applications.

What makes Zenserp API hit the top place among the best scraping tools is its ability to return accurate and relevant data from SERPs in real-time. Thus, this makes it a great choice for businesses and organizations that need to track their online presence, monitor competitor activity, or conduct market research.

Other features of Zenserp API include the ability to:

  • Retrieve data from multiple search engines, including Google, Bing, Yahoo, and more
  • Customize search parameters, such as location, language, device, and more
  • Extract structured data from SERPs, including titles, descriptions, URLs, and more
  • Access rich media, such as images, videos, and maps, directly from SERPs
  • Integrate with a wide range of programming languages and frameworks, including Python, PHP, and Java
  • Scale easily to handle large volumes of requests. The free plan comes with 50 requests/Monthly. Tap here to get a detailed insight on Zenserp pricing plans

Overall, Zenserp API is a perfect and future-oriented tool for anyone who needs to access and analyze data from search engine result pages. With its wide range of features and flexible integration options, it is a great choice for businesses, marketers, developers, and researchers alike. To check their endless integration possibility, try it in your existing system background.

Final Takeaways

APIs have revolutionized the way we build and interact with applications. With the availability of free APIs, developers can easily create innovative and feature-rich applications. In this article, we have piled up some of the most impactful public APIs that can help you in multiple ways!

To explore the most extensive & tailored marketplace of free and premium APIs, visit APILayer and unfold the possibility of API power. You can also list your API there; tap here to learn how.


What Are Free Public APIs?

Free open APIs are free-to-use software interfaces. They allow web developers to access and integrate certain functionalities of an application or service into their own applications without needing API keys.

How Can Developers Use Free Public API?

Developers can use Free Public APIs to enhance their applications by integrating existing functionalities. Such as authentication, data retrieval, and real-time updates, without having to build everything from scratch.

What Are Some Examples of Free Public APIs?

There are many examples of Free Public APIs available. Some popular names include – weatherstack, ipstack, fixer, currencylayer, Twitter API, Shutterstock API, etc. All APIs in the APILayer marketplace have a free version.

Are There Any Limitations to Using Free Public APIs?

Yes, there may be usage limits or rate limits on how frequently the API can be called or how much data can be retrieved. 

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