Welcome to API Harmony!

Find APIs: API Harmony currently lists 1134 APIs. Our data stems from APIs.guru, from crawling the web, and from user-provided input. Start searching above!

Learn about APIs: API Harmony analyzes GitHub projects to show you how others use APIs in their applications.

Use APIs: API Harmony contains links to developer discussions around an API, GitHub projects using it, and tooling like software development kits (SDKs).

Most used APIs
Google OAuth2

Obtains end-user authorization grants for use...

408549 usages on GitHub


GitHub

Powerful collaboration, code review, and code...

177611 usages on GitHub


Twitter

The REST APIs provide programmatic access to read...

123610 usages on GitHub


Google Places

To start developing, please head over to our...

100162 usages on GitHub


Google Places API

To start developing, please head over to our...

100157 usages on GitHub


Latest APIs
API Harmony

The API Harmony API provides support to search...

0 usages on GitHub


Zoopla Property API

Zoopla.co.uk are pleased to provide a number of...

97 usages on GitHub


Zoho CRM

Zoho CRM provides API (Application Programming...

280 usages on GitHub


Zip-Tax.com Sales Tax API

By providing as little as a zip code, we can...

0 usages on GitHub


Zilpy Rent Estimate and Rental Market Aggregates

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0 usages on GitHub


Featured APIs
Google Books

Searches for books and manages your Google Books...

6299 usages on GitHub


Uber

We’re finding better ways for cities to move,...

799 usages on GitHub


YouTube Data

Supports core YouTube features, such as uploading...

13931 usages on GitHub


IBM Alchemy Data News

AlchemyAPI helps developers and businesses build...

0 usages on GitHub


GitHub

Powerful collaboration, code review, and code...

177611 usages on GitHub