diff --git a/server/api/submit.go b/server/api/submit.go
new file mode 100644
index 0000000..8f46d31
--- /dev/null
+++ b/server/api/submit.go
@@ -0,0 +1,58 @@
+package api
+
+import (
+	"encoding/json"
+	"io"
+	"log/slog"
+	"net/http"
+
+	"git.jmbit.de/jmb/scanfile/server/internal/database"
+	"git.jmbit.de/jmb/scanfile/server/internal/processing"
+	"git.jmbit.de/jmb/scanfile/server/internal/utils"
+	"github.com/spf13/viper"
+)
+
+func SubmitRestHandler(w http.ResponseWriter, r *http.Request) {
+	if r.Method != http.MethodPost {
+		http.Error(w, "Only POST allowed", http.StatusBadRequest)
+		return
+	}
+
+  err := r.ParseMultipartForm(viper.GetInt64("web.maxfilesizemb") * 1024 * 1024)
+	if err != nil {
+		slog.Error("Error parsing form in SubmitRestHandler", "error", err)
+		utils.WriteJSONError(w, err.Error(), http.StatusBadRequest)
+		return
+	}
+	fileData, fileHeader, err := r.FormFile("file")
+	if err != nil {
+		slog.Error("Error parsing form in SubmitRestHandler", "error", err)
+		utils.WriteJSONError(w, err.Error(), http.StatusBadRequest)
+		return
+	}
+	fileBytes, err := io.ReadAll(fileData)
+	if err != nil {
+		slog.Error("Error reading file in SubmitRestHandler", "error", err)
+		utils.WriteJSONError(w, err.Error(), http.StatusBadRequest)
+		return
+	}
+
+	file, err := database.CreateFile(r.Context(), fileHeader.Filename, fileBytes)
+	if err != nil {
+		slog.Error("Error saving file in SubmitRestHandler", "error", err)
+    utils.WriteJSONError(w, err.Error(), http.StatusInternalServerError)
+		return
+	}
+  err = processing.Submit(r.Context(), file.ID)
+  w.Header().Set("Content-Type", "application/json")
+  enc := json.NewEncoder(w)
+  enc.SetIndent("", "  ")
+  w.WriteHeader(http.StatusOK)
+  err = enc.Encode(file)
+	if err != nil {
+		slog.Error("Error creating json encoder in SubmitRestHandler", "error", err)
+    utils.WriteJSONError(w, err.Error(), http.StatusInternalServerError)
+		return
+	}
+
+}
diff --git a/server/internal/server/routes.go b/server/internal/server/routes.go
index 127d168..841075b 100644
--- a/server/internal/server/routes.go
+++ b/server/internal/server/routes.go
@@ -3,15 +3,22 @@ package server
 import (
 	"net/http"
 
+	"git.jmbit.de/jmb/scanfile/server/api"
 	"git.jmbit.de/jmb/scanfile/server/web"
 )
 
 func RegisterRoutes() *http.ServeMux {
 	mux := http.NewServeMux()
+  // Web interface
 	mux.HandleFunc("/", web.IndexWebHandler)
 	mux.HandleFunc("/about", web.AboutWebHandler)
 	mux.HandleFunc("/files/{uuid}", web.FileViewWebHandler)
 	mux.HandleFunc("POST /upload", web.IndexUploadHandler)
 	mux.Handle("/assets/", http.FileServer(http.FS(web.Files)))
+
+
+  // REST API
+  mux.HandleFunc("/api/v0/submit", api.SubmitRestHandler)
+
 	return mux
 }
diff --git a/server/internal/utils/jsonError.go b/server/internal/utils/jsonError.go
new file mode 100644
index 0000000..6e5fe5b
--- /dev/null
+++ b/server/internal/utils/jsonError.go
@@ -0,0 +1,26 @@
+package utils
+
+import (
+	"encoding/json"
+	"log/slog"
+	"net/http"
+)
+
+type ErrorResponse struct {
+  Message string `json:"message"`
+  Code int `json:"code,omitempty"`
+}
+
+
+
+func WriteJSONError(w http.ResponseWriter, message string, statusCode int) {
+  w.Header().Set("Content-Type", "application/json")
+  w.WriteHeader(statusCode)
+  errorRes := ErrorResponse{Message: message, Code: statusCode}
+  enc := json.NewEncoder(w)
+  enc.SetIndent("", "  ")
+  err := enc.Encode(errorRes) // Encode and write the JSON response
+  if err != nil {
+    slog.Error("Error in WriteJSONError", "error", err)
+  }
+}