diff --git a/api/s5.go b/api/s5.go
index 6b84878..0f40426 100644
--- a/api/s5.go
+++ b/api/s5.go
@@ -49,6 +49,7 @@ func getRoutes(h *s5.HttpHandler, portal interfaces.Portal) map[string]jape.Hand
 		"/s5/debug/download_urls/:cid": s5.AuthMiddleware(h.DebugDownloadUrls, portal),
 
 		//Registry API
-		"GET /s5/registry": s5.AuthMiddleware(h.RegistryQuery, portal),
+		"GET /s5/registry":  s5.AuthMiddleware(h.RegistryQuery, portal),
+		"POST /s5/registry": s5.AuthMiddleware(h.RegistrySet, portal),
 	}
 }
diff --git a/api/s5/http.go b/api/s5/http.go
index dbfd8fe..89c4e99 100644
--- a/api/s5/http.go
+++ b/api/s5/http.go
@@ -11,6 +11,7 @@ import (
 	"git.lumeweb.com/LumeWeb/libs5-go/encoding"
 	s5interfaces "git.lumeweb.com/LumeWeb/libs5-go/interfaces"
 	"git.lumeweb.com/LumeWeb/libs5-go/metadata"
+	s5protocol "git.lumeweb.com/LumeWeb/libs5-go/protocol"
 	s5storage "git.lumeweb.com/LumeWeb/libs5-go/storage"
 	"git.lumeweb.com/LumeWeb/libs5-go/types"
 	"git.lumeweb.com/LumeWeb/portal/db/models"
@@ -971,6 +972,35 @@ func (h *HttpHandler) RegistryQuery(jc jape.Context) {
 		Signature: base64.RawURLEncoding.EncodeToString(entry.Signature()),
 	})
 }
+func (h *HttpHandler) RegistrySet(jc jape.Context) {
+	var request RegistrySetRequest
+
+	if jc.Decode(&request) != nil {
+		return
+	}
+
+	pk, err := base64.RawURLEncoding.DecodeString(request.Pk)
+	if jc.Check("error decoding pk", err) != nil {
+		return
+	}
+
+	data, err := base64.RawURLEncoding.DecodeString(request.Data)
+	if jc.Check("error decoding data", err) != nil {
+		return
+	}
+
+	signature, err := base64.RawURLEncoding.DecodeString(request.Signature)
+	if jc.Check("error decoding signature", err) != nil {
+		return
+	}
+
+	entry := s5protocol.NewSignedRegistryEntry(pk, request.Revision, data, signature)
+
+	err = h.getNode().Services().Registry().Set(entry, false, nil)
+	if jc.Check("error setting registry entry", err) != nil {
+		return
+	}
+}
 
 func (h *HttpHandler) getNode() s5interfaces.Node {
 	proto, _ := h.portal.ProtocolRegistry().Get("s5")
diff --git a/api/s5/messages.go b/api/s5/messages.go
index 0a0c393..27d5c79 100644
--- a/api/s5/messages.go
+++ b/api/s5/messages.go
@@ -59,3 +59,10 @@ type RegistryQueryResponse struct {
 	Data      string `json:"data"`
 	Signature string `json:"signature"`
 }
+
+type RegistrySetRequest struct {
+	Pk        string `json:"pk"`
+	Revision  uint64 `json:"revision"`
+	Data      string `json:"data"`
+	Signature string `json:"signature"`
+}