| haskellPackages.yesod-raml-mock | A mock-handler generator library from RAML |
| haskellPackages.happlets | "Haskell Applets" provides an event handler and a canvas for building simple GUI apps |
| haskellPackages.classy-effects | An interface for a handler-independent, typeclass-based effect system |
| haskellPackages.classy-effects-base | An interface for a handler-independent, typeclass-based effect system |
| haskellPackages.hack-frontend-monadcgi | Allows programs written against MonadCGI to run with any hack handler. (deprecated) |
| haskellPackages.mailchimp-subscribe | MailChimp subscription request handler |