Linode is “THE” best Linux VPS provider i have ever used. I am currently working on a set of C#/Mono tools to manage my server part of this requires me to interact with their Linode API.
The current version is very basic, and I plan to improve it by adding Exception Handling, and a much improved LinodeResponse class.
I have hosted it on github here.
My Implementation is based fairly heavily on Theodore Nguyen-Cao‘s Java Implementation. It is also released under the MIT License which means you can pretty much do what you like with the code. I also used Json.Net to handle the Json which is also under the MIT License.