Ahrefs API now offers adding its parameters to your SeoQuake toolbar. Number of links, referring domains and IPs are now at hand with just a couple of clicks - Ahrefs Data in SeoQuake - Ahrefs .
I really like ahrefs but my only problem is the price is way too much for most people. Don't get me wrong most of the features are useful, but there are many free alternatives out there, granted maybe not as good but when considering spending a minimum of $49 per month to check links it's not really worth it. If the price was around $25 then I'd consider subscribing but until then..,