The Top 10 Best eCommerce APIs You Must Know

The adoption of eCommerce website development services is intimately linked to the history of the Internet. E-Commerce simply means “purchase and sale of products and services on the Internet.” by basic definition.  Amazon was one of the first eCommerce sites in the US to start the sale of online items & thousands of companies that […]

Updated 1 February 2024

Ashish Chauhan
Ashish Chauhan

Global Delivery Head at Appventurez

The adoption of eCommerce website development services is intimately linked to the history of the Internet.

E-Commerce simply means “purchase and sale of products and services on the Internet.” by basic definition. 

Amazon was one of the first eCommerce sites in the US to start the sale of online items & thousands of companies that expanded extremely fast with the opening of the internet in 1991.

APIs contain the keys to conducting an effective digital transformation lifecycle, making it easier to shift from monolithic IT systems to simple, dependable, and flexible microservice architectures.  Apart from being a part of a SaaS launch checklist, APIs are also marked as the cornerstones of today’s economy to all e-commerce companies.

“People were doing business with one another through the Internet already, through bulletin boards. But on the Web, we could make it interactive, we could create an auction, we could create a real marketplace. And that’s really what triggered my imagination if you will, and that’s what I did.”- Pierre Omidyar, Founder of eBay

what are the tags used in ecommerce apis

In this blog, we have compiled a list of the best eCommerce APIs that are currently in use & will help in selecting the best API.

List Of Best 10 eCommerce APIs

  1. eBay API
  2. Amazon API
  3. Shopify API
  4. Magento API
  5. WooCommerce API
  6. Gumroad API
  7. BigCommerce API
  8. BestBuy API
  9. API2Cart API
  10. Kite API

eBay API

Pierre Omidyar is a founder of eBay who introduced this API tool for eCommerce in 1995 & it stands as one of the best programming languages for web development today.  

eBay API offers a strong platform on which a dedicated community of individuals and enterprises may sell goods and services. 

The eBay API is an interface for web application development that allows direct interactions which is a determining aspect of eBay’s recent trends in database. Communication takes place in XML format over the Internet.  recent trends in database

The application may use the API to create a customized interface, features, and specific actions that the eBay interface does not otherwise afford.

Features of eBay APIs 

Developers can use the eBay API to create programs that can:

  • Show eBay listings
  • Obtain information about high-bidders for sold products.
  • Get the most up-to-date list of eBay categories.
  • When completing a business transaction, leave feedback about other users.
  • Get a list of the products that a certain user is presently selling.
  • Retrieve a list of things on which a certain user has bid.
  • Submit goods for eBay listing
  • View details about products posted on eBay.

Because the API is independent of eBay’s user interface, its stable, individual functionalities and interfaces may be easily developed that suit business needs.

Popularity of eBay API

eBay is one of the largest eCommerce sites in the world, with over 177 million monthly active users.

Benefits of using eBay API

  • End-to-end eBay purchasing experience via your app or website.
  • Allows affiliates to earn money by driving eBay checkouts.
  • Contextual purchasing experience

Amazon API

Amazon API Gateway is an Amazon web services tool enabling developers to link AWS backend resources like servers and code non-AWS apps. The gateway enhances the access of AWS users to compatible apps and the whole usability of other mobile cloud computing services from Amazon.

An API gateway receives and executes simultaneous API calls if the APIs send server requests. It controls traffic, allows users to operate, and analyzes performance. A developer can connect to services like Amazon API Gateway.

Features of using Amazon API

The Amazon API allows merchants to communicate data about listings, orders, payments, reports, and more in a programmable manner. Amazon provides high levels of automated sales that can assist merchants in expanding their business. Sellers may boost their efficiency of sales by implementing Amazon MWS, Minimizing work demand, and improving customer response times. 

Benefits of Amazon API

  1. Efficient API development- Run several API versions at the same time using API Gateway so that new versions may be swiftly iterated tested and released.
  2. Performance at any scale- Provide API queries and answers to end-users with the lowest possible latency by leveraging Amazon CloudFront as our worldwide network of border sites.
  3. Cost-Saving at Scale- For API queries API Gateway provides a level price model. If the price of an API query is as low as 0.90$ per million requests, you may lower your costs by increasing the use of your API in your AWS accounts by region.
  4. RestFul API options– Use HTTP APIs to create RESTFul APIs. For the majority of users HTTP APIs. You can utilize REST APIs if your scenario demands the capability of the API proxy and the management capabilities in one solution.
  5. Popularity of Amazon API – With 90 million Amazon Prime users, Amazon has over 310 million monthly users(paid users).

Shopify API

Shopify is an eCommerce platform that provides merchants(Wholesalers) with an online platform to sell their items or services, as well as tools for payments, marketing, shipping & customer engagement. It aids retailers in simplifying the process of establishing an online store.

It is compatible with a variety of techniques, including category, customer, order, product & so forth. In Shopify, each method has a purpose for which it can be utilized with specific features.

The Shopify API is a mechanism that enables software developers to get data from Shopify-based online businesses and utilize it for their own purposes. The API works with HTTP queries like GET, POST, PUT, and DELETE, and supports both XML and JSON.

Features Of Using Shopify API

Merchants may use the Shopify API to construct their customized storefronts that allow them to sell anywhere, including outside of Shopify. It enables developers to provide better Shopify solutions to their customers. The APIs IOS or Android Buy SDK allow developers to easily integrate items and checkout from a Shopify store into their mobile apps.

Integrating Shopify with third-party code is beneficial. Manual Shopify API integration, on the other hand, can take a lot of time and resources and requires a lot of technical writing. The procedure is time-consuming and is frequently referred to as a strength electrical gadget.

Benefits Of Using Shopify API

  1. It helps you save time and money. Integrating Shopify with third-party code is beneficial.
  2. Error and information duplicity are minimized.
  3. Authorized use of data-driven settlements.
  4. Delivers versatile creativity.
  5. It increased partner collaboration.

Popularity of Shopify API

Shopify is one of the most frequently used platforms for retailers, with over 1 million active monthly users.

Magento API

Magento API is a platform that allows developers and integrators to make the most of online that integrate well with the Magento System. Support for SOAP(Simple Object Access Protocol) & REST (Representational State Transfer) are two of the most important features.

There are three different types of authentication:

  • Token-based authentication in mobile apps
  • OAth 1.0a authentication is used by third-party apps.
  • Customers and administrators are authenticated via login credentials.

The allocated sources for each account and integration are accessible to you. The API framework monitors calls to verify that the account is permitted to make the request.

Features of Magento API

Magento API offers the ability of developers to administer eCommerce trends shops by calling on customer, category, product & sales order resources. Magento also supports REST endpoints that let developers with a single request upgrade several special pricing levels, tier prices, basic prices, or cost values.

Benefits of using Magento API

  • Magento API has a fast load time.
  • The admin interface has been enhanced.
  • Customer experience enhancements.
  • Better shopping for mobile phones.
  • Better capacity testing.
  • A moving forward community.

Popularity of Magento API

Used internationally by approximately 250 thousand traders.

WooCommerce API

To manage access, the WooCommerce REST API uses a key system. These keys are associated with your website’s WordPress users. To generate or manage keys for a particular WordPress user.

For giving access and permissions, the WooCommerce REST API uses a cryptographic key-based mechanism. There are two phases to this authentication process: A consumer key and a Secret Key are created by WooCommerce. They are constructed up of random character strings and are quite hard to crack.

Features of using WooCommerce API

The WordPress REST API is completely integrated with the WooCommerce API. This enables users to create, read, edit & remove WC data using JSON-formatted queries, WordPress REST API authentication methods, and standard HTTP verbs that are understandable by most HTTP clients.

The fact that WooCommerce is both free and open source is a major plus. Open source implies that changes and themes are regularly updated. There is no shortage of good alternatives when it is time to give your shop a visual refreshment.

Benefits of using WooCommerce API

  • Free and open-source
  • Easy to use
  • Simple reporting
  • A handy mobile app

Popularity of WooCommerce API

Used by over 2.4 million websites

Gumroad API

The REST-based Gumroad OAuth API. For each request, even Gumroad returns JSON. This API offers content creators simpler online business interactions. When you list your products on Gumroad a point-to-sell URL you may share with your networks is provided. Gumroad accepts several ways of payment and takes out a small fee.

How to get credentials?

  • You will have to register as a developer to start utilizing the Gumroad API.
  • Then register your request for OAuth.
  • Check your web application or website page for the access token.

Features of Gumroad API

  • Have a place on the internet
  • Construct your Gumroad audience
  • Begin in seconds to sell your digital items
  • Easily sell tangible items
  • Before it is ready, start selling in the market.y 

Popularity of Gumroad API

More than 206,000 have organic visitors.

BigCommerce API

With the APIs BigCommerce, you can construct applications, automate shop procedures, or build uncomplicated e-commerce solutions. What to construct needs inspiration. Check out our marketplace for Apps. BigCommerce offers various APIs that allow you to manage data for storage, authenticate customers, query customer-side products, and many more.

BigCommerce has become one of the world’s leading eCommerce builders & has made online stores extremely scalable.

Features of using BigCommerce API

Various SDKs that allow developers to expand their applications are included in the BigCommerce API. This API enables developers to retrieve the product catalog of a store, create a new product, and fix common bugs.

  • Build flexible solutions with storefront APIs
  • Develop an innovative experience with GraphQL Storefront API 
  • Streamline content management with the widgets API.

Benefits of BigCommerce API

  • Great Support
  • Mobile friendly
  • Sell on numerous website
  • Product Syndication
  • Customer Loyalty


BigCommerce API is used by more than 150K e-retail platforms.

BestBuy API

This API is about more than just the things we offer, yet we realize that’s what the majority of people come here for. The BestBuy products API is a simple REST-based interface that allows access to our full product inventory, both past & present. Pricing, availability, specs, descriptions, and pictures for over one million current and historical; goods are included. The pricing is updated in real-time.

Features of BestBuy API

The BestBuy API key can be customized according to their characteristics and returned according to their behavior. BestBuy API provides a variety of SDKs that enable developers to enhance the functionality of their applications. This API gives developers access to products, stores, categories & much more.

Popularity of BestBuy API

BestBuy operates 1509 stores all over the world. 


It allows the retrieval, updates, and use of various e-store data like customers, orders, products & classes from 40+ popular platforms and marketplaces, among them Magento, Shopify, PrestaShop, and others, using a unique integration interface for shopping platforms.

Best For

B2B SaaS solutions are available from API2Cart globally. Its clients include inventory, order, feed-in software, mobile app development tools, repair systems and other services.

Features of using API2Cart API

It enables developers to add shops from various shopping carts such as eBay, Shopify, large-scale businesses, etc. On request, API2Cart can expand capabilities to fulfill particular company demands.

Popularity of API2Cart API

More than 22,947 visits monthly.

Kite API

The Kite Connect API is designed to help businesses create new trading and investing platforms. On top of Kite, retail traders may utilize the API to construct their own trading experience. 

It gives users—Zerodha clients—programmatic access to data including profile and fund information, order history, positions, and live quotations, among other things. Furthermore, it allows customers to make orders and manage their portfolios from the interface of their choosing.

Features of using Kite API

Kite API allows developers to connect to the Kite platform, allowing them to customize print-on-demand items that can be packed and sent to clients.

Popularity of WooCommerce API

It’s in over 240 million devices throughout the world.

Types of eCommerce APIs

Five types of eCommerce APIs to enhance customer interaction.

Security API 

This API is used by the Authentication API to prevent cyber security challenges on your site. 

API development provides precise authorization and security against fraudulent internet users by square measurement of many different kinds.

Example- OAth 2.0 is a token-based authorization program. Whereas the OAth doesn’t give a specific protocol for authorization, it will provide a framework for authentication commands and mechanisms.

Price Comparison

With an API, it has become easy to benchmark your competition. This function is used by smart e-commerce managers to acquire information at different prices. How? 

You will be able to receive frequent notifications of price variations in your business only by linking the product catalog to an API. This allows you to change the pricing of your items.

Shipping APIs

The comprehensive API for shipping and delivery helps to eliminate manual sorting mistakes and difficulties. eCommerce businesses may utilize the API from the minute they purchase the point of delivery at their doorstep, to coordinate the experience of the consumer. Retailers may place orders and accomplish product shipment by partnering with certain carriers locally and worldwide.

Site search APIs

A typical internet shopper is impatient. According to reports, 40% of web viewers would abandon your site if it takes more than 3 seconds to load. 

Furthermore, if they cannot locate what they are looking for, the vast majority will leave. Integrating a site search API is one approach to avoid this. Every eCommerce site owner requires it for advanced search so that visitors may discover requirements without having to trawl through the entire site in vain. 

Payment handling API

Each website has a payment option as the future of the payment industry will change due to the selection of payment API. It is critical to pick one that does not complicate the procedure. Avoid microservices that need an excessive number of from the end-user.

According to research, fewer form fields boost conversion rates. Recently, “full-stack” payment APIs have been introduced, which eliminate difficulties such as PCI compliance and merchant accounts.

Benefits of Using eCommerce APIs

All aforementioned eCommerce APIs can help you leverage top tech upgrades for businesses in 7 Ways.

Product Knowledge

You may immediately sync your web pages to the product catalog with the global database by using eCommerce APIs. This database management is aimed at sharing in-depth product knowledge.

Site Search:-

With advanced search tools on the eCommerce site, you can easily expand the purchasing experience of the client. The implementation of a website search API merchants manage a wide range of content pages to provide customers with a trouble-free search experience.

Social Proof

It is vital to provide social evidence to clients, including Facebook likes, Twitter commentaries & product reviews. Retailers may utilize eCommerce APIs to broadcast feeds straight to their sites & product pages on their social media.


The finest thing about eCommerce personalization is its efficiency in responding to various consumer demands. By using the specific API, you may classify the website content to assess the demand of each site visitor and potential customer.


The addition of eCommerce shipping APIs is an incentive for merchants dealing with drop-out shipments. Shipping API provides retailers and customers with a tracking tool to ensure delivery is carried out without inconvenience.


In eCommerce businesses add an anti-fraud API so that sales launched by clients are directed via a fraud algorithm containing an API. This helps to evaluate if a purchase is not made when the sale points to red flags.


If an eCommerce website contains widgets linked with Amazon products, you have a better possibility of using the Amazon affiliates API already. These widgets are set up using Amazon APIs to let you display Amazon’s items on your website.

benefits of ecommerce apis

How Appventurez Can Help In Building & Integrating eCommerce APIs?

The eCommerce API mentioned earlier is merely the beginning of a vast array of possibilities. In the expansive landscape of APIs, where countless options claim to simplify your business journey, we’ve meticulously selected a set of APIs that prove invaluable across the entirety of eCommerce operations.

If the concept of integrating an eCommerce API has piqued your interest and you’re contemplating its incorporation into your business framework, look no further than Appventurez for assistance. As a trusted mobile app development company, our team offers eCommerce solutions and can guide you through the selection process, ensuring that the chosen API aligns seamlessly with your organization’s goals and strategies. Let Appventurez empower you to make informed decisions and get a head start on optimizing your eCommerce APIs.


Q. How does the eCommerce API work?

ECommerce APIs allow developers to transmit information in a single user interface from one software to a different one. APIs act as an expandable platform, integrating with multiple solutions, enabling firms to use their current capability from the beginning without creating capabilities.

Q. What is an eCommerce API?

APIs can enable your system to communicate information and data in the context of an eCommerce website. To facilitate this, several eCommerce systems offer APIs. Catalog APIs for instance might let you manage the product catalog and update it to synchronize with multiple systems. An API might enable you to personalize and link your checkout experience to the eCommerce platform. Anything involving system interaction and data sharing is an API for you.

Q. How does an API work?

APIs convey rules which determine how computers, apps or devices may talk to each other. The API works as an intermediary between two computers who wish to connect for a certain job with each other (OR) APIs function as software intermediaries that allow them to act essentially as messengers among various systems. The API transforms the message into data that may be used by others from one system.

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    Ashish Chauhan
    Ashish Chauhan

    Global Delivery Head at Appventurez

    Ashish governs the process of software delivery operations. He ensures the end product attains the highest remarks in qualitative analysis and is streamlined to the clientele’s objectives. He has over a decade of experience as an iOS developer and teams mentorship.