API stands for Application Programming Interface. It act as an intermediate between software.

An open API, also called public API are made publicly available to software developers. Open APIs are published on the internet and shared freely so that the developers can access the application features and services.

Rapid API

RapidAPI, the world's largest API hub, is used by over three million developers to find, test, and connect to thousands of APIs — all with a single API key and dashboard.

Find the APIs that you need for your project, embed the API into your app, and track usage of all your APIs through a single dashboard. If you create an API, use RapidAPI to make it available to over three million developers already using the RapidAPI Hub.

https://youtu.be/OcXEd0Qbvj0

Google APIs

Some APIs allow free usage up to a courtesy usage limit, and in some cases this free limit is increased when you enable billing.

For some APIs, more services are available after you enable billing. For example, when you enable billing for the Google Cloud Platform BigQuery APIs, you can create your own tables; if you do not enable billing, you're limited to existing datasets.

Few Useful Google Free APIs are

• Google Calendar API
• Maps JavaScript API
• Google Drive API
• Google Analytics API
• YouTube Data API v3

Shopify API

Shopify offers a suite of APIs that allow developers to extend the platform’s built-in features. These APIs allow Partners to read and write merchant data, interoperate with other systems and platforms, and add new functionality to Shopify.

Spotify API

Based on simple REST principles, the Spotify Web API endpoints return JSON metadata about music artists, albums, and tracks, directly from the Spotify Data Catalogue.

Web API also provides access to user related data, like playlists and music that the user saves in the Your Music library. Such access is enabled through selective authorization, by the user.

The base address of Web API is https://api.spotify.com. The API provides a set of endpoints, each with its own unique path. To access private data through the Web API, such as user profiles and playlists, an application must get the user’s permission to access the data. Authorization is via the Spotify Accounts service.

https://youtube.com/watch?v=c5sWvP9h3s8

OpenSea API

The OpenSea API helps developers build new experiences using NFTs and our marketplace data. We provide a set of endpoints that enable you to fetch ERC721 and ERC1155 token metadata as well as other core elements of our marketplace, including events, collection, listings, offers, and more. We offer these endpoints because we believe in composability in web3 and want to extend access to this data to anyone that wishes to build on top of it.

Related Blogs

• Fetch and Create events in Google Calendar with HTML and Javascript.
• Schedule Google Meet Using HTML and JavaScript.

If you have any other awesome Open APIs that you have used to create your projects do with us in the comment.