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The Best Free APIs to Use in 2024 for Your Business

A developer is checking the APILayer marketplace for the best free APIs

A REST API, often known as a RESTful API, is an application programming interface that complies with a simple object access protocol to facilitate communication with RESTful web services. Roy Fielding, a software developer, created the acronym REST, which refers to representational state transfer. REST APIs allow you to easily increase the functionality of your application with the best free APIs to use.

One could question what free web APIs are accessible to increase productivity effectively as we start a new year. At APILayer, we think that enhanced automation, machine learning, and improved platform and system interconnection will be the primary API trends of the future. So, in this post, we will look at the top API products you can use for your businesses in 2024

What Do Free APIs Offer?

A person setting up the best free API products on a desktop

Many online apps today use free APIs. Your app can use it to access data freely and communicate with other software components. It enables you to “call” or “request” certain information. For instance, you might ask a weather API to provide meteorological data in a JSON format going back ten years. You may use internal APIs to communicate with different microservices or give developers access to other API services, like Google APIs. APIs have changed the way we interact with the world, and they will continue to do so. The possibilities are limitless when it comes to public APIs.

What are Some Best Free APIs?

Nowadays, web developers have access to many valuable open-source APIs, such as the Google Maps API, or social media APIs like Twitter API, Spotify API, and Facebook API. There are various ways of usage of APIs, such as Google maps or a web service, to publish social media content or acquire media. Even though all API requests need access via API keys, not all of them are equal. Hence, below, we’ll go through five of the greatest APIs we could find.

Ipstack – Global IP Adress Dataset Tool

home page of ipstack ip address validation api

Ipstack internationally offers one of the best REST countries API and global IP database services. The Ipstack API endpoints were designed with scalability and user-friendliness in mind. This means that it doesn’t take more than 10 minutes to get it up and running and start making API calls. Professional developers, small and midsize businesses, and significant businesses globally use its actual geolocation API service



  • Real-Time IP to Geolocation API: You can quickly and accurately locate and identify website visitors using their IP addresses in real-time.
  • Global IP Database Services: You can access a comprehensive global IP database with 2 million unique locations in 200,000 cities worldwide.
  • Rock-Solid Data Sources: Ipstack has years of partnership with large ISPs, ensuring accurate and consistent geolocation data for precise location tracking.
  • Scalable Infrastructure: Ipstack’s Infrastructure handles your scaling needs whether you have 1,000 requests a month or a million daily.
  • Comprehensive API Documentation: Ipstack offers extensive documentation, making API integration easy to use within minutes.
  • API Security: The Ipstack API sends and processes all data using 256-bit SSL encryption, which ensures the privacy and security of your information.
  • Flexible Output Formats: You get outputs in JSON format for easy integration into your applications.

How to Use IPstack?

An example of how to utilize ipstack for lookup is shown below. All you have to do is add an IPv4 or IPv6 address to the basic URL, as demonstrated below:

These are the required commands. There are other optional commands as well. An example of the optional command is shown below:

Which returns the following response:

Zenserp API – Data Scrapping Tool

homepage of zenserp best data scrapping tool

The Zenserp API is a tool designed to simplify the process of gathering search results from Google, YouTube, and various shopping websites. It allows users to scrape data efficiently and effortlessly. This is especially useful for businesses and individuals who need current search data to make informed decisions or monitor trends.


  • Scrape Google Search Results Without Limits: The API offers accurate and geolocated search engine results without any limitations.
  • Location-Based: Zenserp allows you to access search results tailored to specific locations.
  • Highly Scalable: Zenserp ensures consistent performance and scalability to handle large volumes of requests.
  • Maximum Speed: Zenserp’s Google Search Results API delivers results in real time with maximum speed and efficiency.
  • Complete Google Search API Coverage: Zenserp’s API covers all available snippets in Google search results, including organic, paid, news, video, local, knowledge graph, related questions, answer boxes, and map results.

Weatherstack API – Real-Time Weather Data API

weatherstack api homepage for accurate weather data collection

The Weatherstack API provides both real-time and historical weather data for any location worldwide. It delivers accurate and comprehensive weather information, making it a valuable resource for those needing up-to-date weather conditions and historical weather patterns.


  • Instant Weather Information: The free weather API retrieves real-time and historical weather data for any location worldwide in lightweight JSON format.
  • Comprehensive Coverage: The API offers insights into global weather data, including real-time, historical, and forecast information for millions of locations.
  • Flexible Location Lookup: You can get access to look up locations using city or region names, ZIP codes, IP addresses, or latitude and longitude coordinates.
  • Developer-Friendly: The API delivers weather data in lightweight JSON format to ensure compatibility with any programming language.
  • API Security: The API ensures data security with industry-standard 256-bit HTTPS encryption for all data streams.
  • Extensive API Documentation: The free weather API provides access to comprehensive documentation with interactive code examples for easy integration.

Numverify API – Phone Number Validation API

homepage of numverify api for validating national and international phone numbers

Numverify is a global phone number validation and lookup API designed to verify both national and international phone numbers. By using this API, businesses can enhance their security measures and protect their users from potential fraud. It checks the validity of phone numbers, helping to ensure that the numbers provided by users are real and properly formatted.


  • Identify Phone Numbers: The API identifies national and international phone numbers by passing them into the API’s request URL.
  • Secure Connection: The Numverify API ensures that data streams are provided securely and encrypted with industry-standard 256-bit HTTPS encryption when connecting to the API.
  • Extended Usage Statistics: You can track API usage daily or monthly and receive automatic notifications when running low usage.
  • Advanced Tools: The API offers advanced phone number validation features, including carrier and line type detection. 

Where to Find Best Open Source APIs? 

A developer is searching for the best APIs in the APILayer marketplace using his laptop

In February 2022, cloud-based SAAS vendor APILayer debuted its API marketplace and its services. API markets offer Premium proprietary APIs, where programmers may promote and make money from their APIs. The APILayer marketplace further attempts to streamline and expand access to live information and service APIs.

Developers of all skill levels may create scalable apps and include basic API features in as little as 10 minutes, thanks to the accessibility of data and service APIs. APILayer API provider supplies the top free APIs with top-notch products. It also provides both free and paid alternatives. You may access a variety of partner APIs via it, like weatherstack, Mailboxlayer, Zenscrape, etc. They allow you to increase the functionality of your program without worrying about reliability and scalability.

Because it offers the best-in-class APIs on the market, APILayer is the ideal place to locate free APIs. Not only that, but it also has the capacity to use trustworthy sources to deliver highly accurate data and provides very dependable APIs with a 99.98% uptime. Users can start easily because one distinguishing quality of the API Layer’s APIs is that each API is accompanied by excellent API documentation.

How to Determine Which API is the Best Fit for Your Business Needs?

To determine which APIs are the best fit for your business needs, take into consideration the following:

  • Identify your needs like what functionalities you want to add to your business.
  • Explore API categories you want to include in your business, such as general purpose, content, data, communication, or social media.
  • Evaluate features offered by different APIs and compare and choose the one that fits your needs. 
  • Consider Usage Limits, which is how many requests you can make to the API.
  • Assess documentation & support an API provides for reliable support and successful integration.

Are There Any Security Measures You Need to Know When Using Free APIS?

When using free APIs, security considerations are paramount to safeguard your business data and systems. Some critical security aspects to consider include:

  • Authentication: Look for APIs that offer secure authentication methods to protect your data.
  • Data Encryption: Verify that the API supports encryption protocols to secure data transmission over networks.
  • Vulnerability Updates: Be sure the API provider regularly addresses any security vulnerabilities.

Revolutionize Your Business with the Best Free APIs of 2024 on APILayer!

A checking checking APILayer marketplace on laptop

The business landscape is characterized by continuous innovation. Integrating APIs into core operations presents an exciting opportunity to revolutionize business practices, enhance customer interactions, and secure a competitive edge.
Platforms like APILayer provide a curated selection of APIs across diverse categories, ensuring you can find the right APIs to meet your business needs. So, seize the opportunity to leverage the power of APIs and propel your business in the ever-evolving world of technology and commerce.

To quickly access the top free APIs, visit APILayer Marketplace and check out the list of the finest free APIs!


APIs offer a multitude of functionalities, providing invaluable tools to streamline processes, improve efficiency, and drive innovation. By harnessing the power of these APIs, businesses can access cutting-edge technologies without the burden of hefty costs. Incorporating the best free APIs into your business strategy will help you stay ahead of the curve, drive growth, and deliver exceptional customer value.


What are the three most common types of APIs?

REST, RPC, and SOAP represent the three primary methods or designs for APIs used in modern software development.

  • REST (Representational State Transfer) is widely favored for its simplicity and compatibility with the web. It utilizes standard HTTP methods like GET, POST, PUT, and DELETE to perform operations.
  • RPC (Remote Procedure Call) focuses on actions, enabling a client to execute code on a server as if it were a local procedure. It often uses protocols like JSON-RPC or XML-RPC.
  • SOAP (Simple Object Access Protocol), though more complex, provides a high level of standardization and security, using XML to ensure that messages maintain their integrity and confidentiality across diverse networks

What is an API, and why are they essential for business?

An Application Programming Interface (API) lets software applications communicate and interact with each other. They are essential for businesses because they offer automation, streamline workflows, and enhance user experiences.

Where can I find free APIs?

You can find free APIs in online marketplaces such as APILayer. Explore the platform, and you will get a curated collection of APIs for geolocation, currency conversion, weather data, and more. 

Can you expect scalability as your business grows when using these APIs?

The scalability of APIs depends on the architecture, Infrastructure, and design principles employed by the API provider and your business. While some free APIs accommodate growing demand and traffic, others have limitations under heavy loads.

Is API the same as JSON?

First and foremost, JSON is a data format that programs and online services use to communicate with one another, not an API. There are several web services, but REST and SOAP are the most used. You may connect with and communicate with distant devices via web services.

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