2013 Most Popular and Successful Web APIs

Have you ever been stumped how to design a Web API? There are so many different approaches that you can take for even simple things, like paginating API result sets. If you list out your options, it can be easy to end up in analysis paralysis.

I like to remind myself that I’m not the first person to tread on this soil. I often take inspiration on design choices from well-known APIs, assuming that the hard work has already been done. But I realized lately that I’m not confident what a popular or successful API is, and that I have my own exposure biases in what is popular or successful. So, I decided to do some research to address that.

I defined an API’s success and popularity based upon whether it is supported by integration solutions. Integration solutions are systems which allow for the easier connecting or APIs together. I figure that if a service or API is popular, customers will demand it be available in integration systems that they use. As a result, the supported APIs could be correlated to determine the most popular APIs for integrating with.

I gathered the available APIs in nine integration platforms: Zapier, Mule ESB, ifttt, itDuzzit, Pipethru, Formstack, Magic xpi, Adeptia, and CloudWork. These platforms cover a range from being Startup-y to Enterprise-y.

So, here it is; the most popular APIs by their integration platform support:

API

# Integrations

Integration Solutions

Dropbox

7

Zapier, ifttt, Mule, itDuzzit, Pipethru, Formstack, CloudWork

Google Calendar

7

Zapier, ifttt, Mule, itDuzzit, Pipethru, Formstack, CloudWork

Salesforce

7

Zapier, Mule, itDuzzit, Formstack, Magic-xpi, Adeptia, CloudWork

Twitter

7

Zapier, ifttt, Mule, itDuzzit, Pipethru, Formstack, CloudWork

Box

5

Zapier, ifttt, Mule, itDuzzit, Formstack

Facebook

5

Zapier, ifttt, Mule, itDuzzit, Pipethru

Gmail

5

Zapier, ifttt, itDuzzit, Pipethru, CloudWork

Google Contacts

5

Zapier, Mule, itDuzzit, Formstack, CloudWork

WordPress

5

Zapier, ifttt, itDuzzit, Formstack, CloudWork

Campaign Monitor

4

Zapier, itDuzzit, Formstack, CloudWork

Chargify

4

Zapier, itDuzzit, Formstack, CloudWork

Evernote

4

Zapier, ifttt, Pipethru, CloudWork

FreshBooks

4

Zapier, itDuzzit, Formstack, CloudWork

Google Drive

4

Zapier, ifttt, itDuzzit, CloudWork

Highrise

4

Zapier, itDuzzit, Formstack, CloudWork

LinkedIn

4

Zapier, ifttt, Mule, itDuzzit

NetSuite

4

Zapier, Mule, itDuzzit, Adeptia

Quickbooks

4

Zapier, Mule, itDuzzit, CloudWork

Stripe

4

Zapier, itDuzzit, Pipethru, Formstack

Toggl

4

Zapier, itDuzzit, Pipethru, CloudWork

Trello

4

Zapier, itDuzzit, Pipethru, CloudWork

Yammer

4

Zapier, ifttt, Mule, itDuzzit

Zendesk

4

Zapier, itDuzzit, Formstack, CloudWork

ActiveCampaign

3

Zapier, itDuzzit, CloudWork

Asana

3

Zapier, itDuzzit, CloudWork

Authorize.Net

3

Zapier, Mule, Formstack

Basecamp

3

Zapier, itDuzzit, CloudWork

Batchbook

3

Zapier, itDuzzit, Formstack

Blogger

3

ifttt, Mule, itDuzzit

Campfire

3

Zapier, ifttt, itDuzzit

Capsule CRM

3

Zapier, itDuzzit, CloudWork

Chatter

3

Zapier, ifttt, itDuzzit

Constant Contact

3

Zapier, itDuzzit, Formstack

Desk.com

3

Zapier, itDuzzit, CloudWork

Flickr

3

ifttt, Mule, itDuzzit

FreeAgent

3

Zapier, itDuzzit, Pipethru

GitHub

3

Zapier, Mule, itDuzzit

Google Docs

3

Zapier, itDuzzit, Formstack

Google Talk

3

Zapier, ifttt, itDuzzit

Google Tasks

3

Zapier, Mule, itDuzzit

JIRA

3

Zapier, Mule, itDuzzit

MailChimp

3

Zapier, itDuzzit, Formstack

Microsoft Dynamics CRM

3

Zapier, itDuzzit, Magic-xpi

PayPal

3

Zapier, Mule, Formstack

SugarCRM

3

Zapier, Mule, CloudWork

Twilio

3

Zapier, Mule, itDuzzit

WebMerge

3

Zapier, itDuzzit, Formstack

Zoho CRM

3

Zapier, itDuzzit, CloudWork

RSS, SMS, and e-mail also get a nod at being well-supported by these integration platforms, but I excluded these from this list as they don’t fit in as APIs that you can look at and learn from.

Join in the discussion over at reddit and Hacker News.

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2 Comments on 2013 Most Popular and Successful Web APIs

  1. Philip
    2013/09/11 at 4:00 am (3 years ago)

    Great list, thanks Mathieu!

  2. Isaiah Turner
    2013/10/20 at 5:22 pm (3 years ago)

    Great list, don’t forget AWS (Amazon Web Services) they power much of the internet nowadays.