GraphQL Search and Filter provides an overview of how to add filtering capabilities to a GraphQL API. The concept of searching and filtering is explained as two different ways to find items that match certain criteria, with the word "filter" used instead of "search". The examples cover filtering for specific items, filtering down lists, and filtering for items matching a list. Additionally, complex filtering using an Input Type is introduced, which encapsulates all possible filtering options in a single parameter. The article concludes by highlighting the benefits of using Apollo Explorer as a free cloud GraphQL IDE that provides productivity-boosting features such as one-click query building and development graphs.