Host Your Own
If you manage your own web server, you can easily install a personalized version of Feed2JS for your own use, the only requirements are that your hist can run PHP, and you can upload a few files to the server.
Code and instructions are available on github https://github.com/cogdog/feed2js.
You will also find details there how restrict the use of your own Feed2JS to domains you specify.
For more substantial installations, you can also install an instance on Amazon’s EC2.