What is Hayoo?
Hayoo is a search engine for Hackage packages, which allows you to search for functions, data types and packages. Each indexed document consists of a name, a description and, if applicable, a signature. Have a look at the examples on how to use Hayoo. In constrast to Hoogle, all available packages are indexed, but the signature search is not as advanced.
Hayoo uses Hunt for indexing and searching. Hunt is a flexible, lightweight search platform with a powerful query language and JSON API. Hayoo exposes the query language through its own interface and allows the execution of advanced queries.
Additionally, Hunt consists of a standalone web server for easy integration into existing infrastructures without having to write Haskell code.