JsonApiParser is deprecated
JsonApiParser is deprecated

Their README says the project has been deprecated. 

They advertised jsonapi-rb / jsonapi-parser as a replacement, but that's more of a validator than a usable client-library, so I just deleted this entry.
json-api/json-api,json-api/json-api,json-api/json-api,json-api/json-api,json-api/json-api