I dont think there will Automation tools available separately. Agile is a process where you can use your existing Automaton tools such as Selenium
Suggest some list of Agile Automation tools
Suggest me some Agile Automation tool anmes please Agile Automation,
Please let us know your question clearly, so that we can answer better, Agile Methodology is a phase by approach and if you want to use any Open source automation tools in development & Testing, please see the below mentioned website.
Ram A V V J Varanasi