diff --git a/pcsdk/pcsdk.go b/pcsdk/pcsdk.go
new file mode 100644
index 0000000..4b9610c
--- /dev/null
+++ b/pcsdk/pcsdk.go
@@ -0,0 +1,24 @@
+package pcsdk
+
+import (
+	"net/netip"
+
+	"github.com/google/uuid"
+	"github.com/thefeli73/polemos/state"
+)
+
+type ProxyCommandCreate struct {
+	Command CommandCreate `json:"create"`
+	// signature Signature
+}
+
+type CommandCreate struct {
+	IncomingPort    uint16     `json:"incoming_port"`
+	DestinationPort uint16     `json:"destination_port"`
+	DestinationIP   netip.Addr `json:"destination_ip"`
+	Id              string     `json:"id"`
+}
+
+func NewCommandCreate(iport uint16, oport uint16, oip netip.Addr, id state.CustomUUID) CommandCreate {
+	return CommandCreate{iport, oport, oip, uuid.UUID.String(uuid.UUID(id))}
+}
diff --git a/pcsdk/pcsdk_test.go b/pcsdk/pcsdk_test.go
new file mode 100644
index 0000000..b14462e
--- /dev/null
+++ b/pcsdk/pcsdk_test.go
@@ -0,0 +1,29 @@
+package pcsdk
+
+import (
+	"encoding/json"
+	"net/netip"
+	"testing"
+
+	"github.com/google/uuid"
+	"github.com/thefeli73/polemos/state"
+)
+
+func TestCommandCreateJsonParse(t *testing.T) {
+	ip, _ := netip.ParseAddr("127.0.0.99")
+	uuid, _ := uuid.Parse("87e79cbc-6df6-4462-8412-85d6c473e3b1")
+	c := NewCommandCreate(5555, 6666, ip, state.CustomUUID(uuid))
+	m := ProxyCommandCreate{c}
+	msg, err := json.Marshal(m)
+	if err != nil {
+		t.Fatalf(`%q`, err)
+	}
+
+	expected := "{\"create\":{\"incoming_port\":5555,\"destination_port\":6666,\"destination_ip\":\"127.0.0.99\",\"id\":\"87e79cbc-6df6-4462-8412-85d6c473e3b1\"}}"
+	if string(msg) != expected {
+		t.Fatalf(
+			"\nExpected:\t %q\nGot:\t\t %q\n", expected, msg)
+	}
+}
+
+