Validation for ASP.NET MVC that isn't based on the model

Validation for ASP.NET MVC that isn't based on the model

Is there any validation library for ASP.NET MVC that isn't based on the
model? (no data annotations or Validator classes)
I'm looking for something as simple as:
Validate("Email").NotEmpty().Email();
I found Fluent Validation, but it's based on the model and needs extra
validator classes.