/usr/include/jsonrpccpp/ is in libjsonrpccpp-dev 0.6.0-2build1.
This file is owned by root:root, with mode 0o755.
..
/usr/include/jsonrpccpp/client/
/usr/include/jsonrpccpp/client.h
/usr/include/jsonrpccpp/client/batchcall.h
/usr/include/jsonrpccpp/client/batchresponse.h
/usr/include/jsonrpccpp/client/client.h
/usr/include/jsonrpccpp/client/connectors/
/usr/include/jsonrpccpp/client/connectors/httpclient.h
/usr/include/jsonrpccpp/client/connectors/unixdomainsocketclient.h
/usr/include/jsonrpccpp/client/iclientconnector.h
/usr/include/jsonrpccpp/common/
/usr/include/jsonrpccpp/common/errors.h
/usr/include/jsonrpccpp/common/exception.h
/usr/include/jsonrpccpp/common/jsonparser.h
/usr/include/jsonrpccpp/common/procedure.h
/usr/include/jsonrpccpp/common/specification.h
/usr/include/jsonrpccpp/common/specificationparser.h
/usr/include/jsonrpccpp/common/specificationwriter.h
/usr/include/jsonrpccpp/server/
/usr/include/jsonrpccpp/server.h
/usr/include/jsonrpccpp/server/abstractserver.h
/usr/include/jsonrpccpp/server/abstractserverconnector.h
/usr/include/jsonrpccpp/server/connectors/
/usr/include/jsonrpccpp/server/connectors/httpserver.h
/usr/include/jsonrpccpp/server/connectors/unixdomainsocketserver.h
/usr/include/jsonrpccpp/server/iclientconnectionhandler.h
/usr/include/jsonrpccpp/server/iprocedureinvokationhandler.h
/usr/include/jsonrpccpp/server/requesthandlerfactory.h
/usr/include/jsonrpccpp/stubgen/
/usr/include/jsonrpccpp/stubgen/client/
/usr/include/jsonrpccpp/stubgen/client/cppclientstubgenerator.h
/usr/include/jsonrpccpp/stubgen/client/jsclientstubgenerator.h
/usr/include/jsonrpccpp/stubgen/codegenerator.h
/usr/include/jsonrpccpp/stubgen/helper/
/usr/include/jsonrpccpp/stubgen/helper/cpphelper.h
/usr/include/jsonrpccpp/stubgen/server/
/usr/include/jsonrpccpp/stubgen/server/cppserverstubgenerator.h
/usr/include/jsonrpccpp/stubgen/servertemplate.h
/usr/include/jsonrpccpp/stubgen/stubgenerator.h
/usr/include/jsonrpccpp/stubgen/stubgeneratorfactory.h
/usr/include/jsonrpccpp/stubgen/stubhelper.h
/usr/include/jsonrpccpp/version.h