A quick python script/lib that allows you to search for valid .io domains based on a list of words. I could easily have done any tld, but IO is the new hotness, so I built it around that. You could add a new parameter to look for others though!
To run, edit and use the test runner: python test.py
Invalid url: aardvark.io
Invalid url: aardwolf.io
Valid url: aaron.io
Invalid url: aback.io
Valid url: abacus.io
Invalid url: abaft.io
Invalid url: abalone.io
Invalid url: abandon.io
Invalid url: abandoned.io
Invalid url: abandonment.io
Invalid url: abandons.io
Invalid url: abase.io
Invalid url: abased.io
Invalid url: abasement.io
Invalid url: abash.io
Invalid url: abashed.io
Invalid url: abate.io
Invalid url: abated.io
Invalid url: abatement.io