Denis Lam

WordPress generates shortlinks for your posts and pages. By default it uses the <code>?p=</code> with the post ID added to it, but if you have a rather long domain name this isn’t very useful. If you use <a href="http://bit.ly" rel="nofollow ugc">Bit.ly</a>, this plugin will help you replace the shortlink WordPress generates with a proper Bit.ly shortlink.
This plugin uses the latest Bit.ly OAuth 2 draft specification API instead of its deprecated V3 API and enables you to use generic access token to automatically enable Bit.ly shortlinks in your entire multisite network without the need for each site user to have to tinker with any settings or authentication configurations.

Bit.ly Shortlinks Multisite (Uses OAuth 2 API)

This plugin replaces the default WordPress shortlinks with Bit.ly shortlinks for your single site or multisite WordPress network.

Kostas Vrouvas

Get the classic “Get shortlink” from WordPress 3.7. Developed to make it easier for people at <a href="https://mentorinculture.com/" rel="nofollow ugc">Mentor</a> to get shorlinks and open sourcing it.
To-do:
<ol>
<li>Connect with Bit.ly API</li>
<li>Options menu to add Bit.ly API keys</li>
</ol>

Get Shortlinks

Get the classic "Get shortlink" from WordPress 3.7. Developed to make it easier for people at Mentor to get shorlinks and open sourcing it.

Bit.ly Shortlinks Multisite (Uses OAuth 2 API) vs Get Shortlinks