Here's the RuneScape Account Checker made by HatScripts.
Instructions:
Download:
http://hatscripts.com/namechecker/download
API (Documentation):
http://hatscripts.com/namechecker/docs/
- Written in pure Java
- Fast, simplistic and responsive
- Multi-threaded for maximum speed
- Remembers previous settings
Instructions:
- Download and run program
- Browse for the input text file, containing the RuneScape usernames of which you wish to check the availability.
Usernames should be separated by line breaks - Browse for the output text file, or leave it as the default
Output file will be created if it doesn't already exist
If output file contains text, you will be prompted about whether to replace or add to it - Click the start button, and the name checking will begin
- Upon completion, you will be prompted about whether to open the output file. Select Yes to view the available names.
Download:
http://hatscripts.com/namechecker/download
API (Documentation):
http://hatscripts.com/namechecker/docs/