libjson-validator-perl binary package in Ubuntu Oracular amd64

 JSON::Validator is a class for validating data against JSON schemas. You
 might want to use this instead of JSON::Schema if you need to validate data
 against draft 4 of the JSON schema specification.
 .
 JSON::Validator can load JSON schemas in multiple formats: Plain perl data
 structured or files on disk/web in the JSON/YAML format. The JSON parsing is
 done using Mojo::JSON, while the YAML parsing is done with an optional
 modules which need to be installed manually. JSON::Validator will look for
 the YAML modules in this order: YAML::XS, YAML::Syck. The order is set by
 which module that performs the best, so it might change in the future.

Source package