diff --git a/cmd/dkl-local-server/ws-host.go b/cmd/dkl-local-server/ws-host.go
index bdb6a22..7eebc99 100644
--- a/cmd/dkl-local-server/ws-host.go
+++ b/cmd/dkl-local-server/ws-host.go
@@ -5,6 +5,8 @@ import (
 	"path"
 
 	restful "github.com/emicklei/go-restful"
+
+	"novit.nc/direktil/local-server/pkg/mime"
 )
 
 type wsHost struct {
@@ -19,23 +21,45 @@ func (ws *wsHost) register(rws *restful.WebService, alterRB func(*restful.RouteB
 
 	for _, rb := range []*restful.RouteBuilder{
 		// raw configuration
-		b("config").Doc("Get the host's configuration"),
+		b("config").
+			Produces(mime.YAML).
+			Doc("Get the host's configuration"),
 
 		// metal/local HDD install
-		b("boot.img").Doc("Get the host's boot disk image"),
-		b("boot.img.gz").Doc("Get the host's boot disk image (gzip compressed)"),
-		b("boot.img.lz4").Doc("Get the host's boot disk image (lz4 compressed)"),
+		b("boot.img").
+			Produces(mime.DISK).
+			Doc("Get the host's boot disk image"),
+
+		b("boot.img.gz").
+			Produces(mime.DISK + "+gzip").
+			Doc("Get the host's boot disk image (gzip compressed)"),
+
+		b("boot.img.lz4").
+			Produces(mime.DISK + "+lz4").
+			Doc("Get the host's boot disk image (lz4 compressed)"),
 
 		// metal/local HDD upgrades
-		b("boot.tar").Doc("Get the host's /boot archive (ie: for metal upgrades)"),
+		b("boot.tar").
+			Produces(mime.TAR).
+			Doc("Get the host's /boot archive (ie: for metal upgrades)"),
 
 		// read-only ISO support
-		b("boot.iso").Doc("Get the host's boot CD-ROM image"),
+		b("boot.iso").
+			Produces(mime.ISO).
+			Doc("Get the host's boot CD-ROM image"),
 
 		// netboot support
-		b("ipxe").Doc("Get the host's IPXE code (for netboot)"),
-		b("kernel").Doc("Get the host's kernel (ie: for netboot)"),
-		b("initrd").Doc("Get the host's initial RAM disk (ie: for netboot)"),
+		b("ipxe").
+			Produces(mime.IPXE).
+			Doc("Get the host's IPXE code (for netboot)"),
+
+		b("kernel").
+			Produces(mime.OCTET).
+			Doc("Get the host's kernel (ie: for netboot)"),
+
+		b("initrd").
+			Produces(mime.OCTET).
+			Doc("Get the host's initial RAM disk (ie: for netboot)"),
 	} {
 		alterRB(rb)
 		rws.Route(rb)
diff --git a/cmd/dkl-local-server/ws.go b/cmd/dkl-local-server/ws.go
index 926ec7c..ca74cb8 100644
--- a/cmd/dkl-local-server/ws.go
+++ b/cmd/dkl-local-server/ws.go
@@ -7,6 +7,7 @@ import (
 	"strings"
 
 	"github.com/emicklei/go-restful"
+	"novit.nc/direktil/local-server/pkg/mime"
 	"novit.nc/direktil/pkg/localconfig"
 )
 
@@ -23,6 +24,7 @@ func buildWS() *restful.WebService {
 	ws.Route(ws.GET("/clusters/{cluster-name}").Filter(adminAuth).To(wsCluster).
 		Doc("Get cluster details"))
 	ws.Route(ws.GET("/clusters/{cluster-name}/addons").Filter(adminAuth).To(wsClusterAddons).
+		Produces(mime.YAML).
 		Doc("Get cluster addons").
 		Returns(http.StatusOK, "OK", nil).
 		Returns(http.StatusNotFound, "The cluster does not exists or does not have addons defined", nil))
diff --git a/pkg/mime/mime.go b/pkg/mime/mime.go
new file mode 100644
index 0000000..3a2696b
--- /dev/null
+++ b/pkg/mime/mime.go
@@ -0,0 +1,10 @@
+package mime
+
+const (
+	YAML  = "text/vnd.yaml"
+	TAR   = "application/tar"
+	DISK  = "application/x-diskimage"
+	ISO   = "application/x-iso9660-image"
+	IPXE  = "application/x-ipxe"
+	OCTET = "application/octet-stream"
+)