bitflipper is a small python script that takes a domain name as input and prints a list of all valid domain names derived from the input by flipping one bit. It can also use the domainr API to check which of the derived domains are available.
In order automatically check the status of the derived domains, a domainr API key is required. You can get one for free.
The key has to be added to a file called .bitflipper in your home directory:
$ echo "DOMAINR-API=xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx" > ~/.bitflipper
where xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx is replaced by your API key.
MIT