Big List of Free and Open Public APIs (No Auth Needed) [2022]

An API (Application Programming Interface) allows you to send requests to a remote data set, like querying a database. The response will then be delivered back to your own application in a standardized format. This is very helpful when you’re building an app or pulling metrics for reporting, because it means you can focus on presenting information in a unique or useful manner, rather than developing the underlying data set. For example, most weather apps get their weather forecast data from a weather API, rather than building weather stations themselves.

Of course, the fastest way to understand how APIs work is to try them out. While most APIs require access via API keys (which are similar to passwords), or have complex methods of authentication and authorization, there are also quite a few APIs with no requirements at all. This is especially useful for beginners, as it means you can start exploring different APIs right away. It is also useful for web developers looking to simply access a sample data set for their app.

Big List of Free Open APIs

The APIs below can be accessed using any method:

• your web browser
• cURL for the command line
• API clients like Swagger and Postman
• Mixed Analytics’ own API Connector for Google Sheets (nearly all of these APIs can be accessed from the Applications menu, just look for the green “unlocked” icons).