v3 does not have a native HTTP API. I suspect you still use v2 API. You need the gateway to make v3 works with HTTP: https://github.com/coreos/etcd/blob/master/

v3 does not have a native HTTP API. I suspect you still use v2 API. You need the gateway to make v3 works with HTTP: https://github.com/coreos/etcd/blob/master/Documentation/dev-guide/api_grpc_gateway.md https://github.com/coreos/etcd/blob/master/Documentation/dev... But that might impact performance quite bit depending on your workload.