yesod-katip is a utility library for easily adding katip operability to your yesod site. It provides class instances for logging to Katip scribes directly from a Yesod HandlerFor; as well as utility wrappers for augmenting a Yesod site with useful Katip behaviours, like pulling in HTTP context automatically, and making the Yesod logger output to Katip.
For more information, have a look at the module documentation.