# Tarams v1.9.0 - Table of Contents > Phoenix request params validation library ## Pages - [Tarams](readme.md) ## Modules - [Tarams](Tarams.md): Params provide some helpers method to work with parameters - [Tarams.Schema](Tarams.Schema.md): This is only a specification to define a schema to use with `Tarams.Params.cast` and `Tarams.Contract.validate` - [Tarams.Type](Tarams.Type.md): Cast data to target type. Much code of this module is borrowed from `Ecto.Type` - [Tarams.Utils](Tarams.Utils.md)