@Pablo-Oyarzo There is protobuf and libprotobuf-c, I've started using libprotobuf-c recently but not much experience so far. To install edit /etc/opkg/distfeeds.conf uncomment line 5, run opkg update then you cna run opkg install protobuf opkg install libprotobuf-c Limited documentation is available on openwrt.org but since it pulls the code from Google's opensource github account you can find the docs there: https://github.com/protocolbuffers/protobuf