diff --git a/full/src/main/java/de/ids_mannheim/korap/service/UserService.java b/full/src/main/java/de/ids_mannheim/korap/service/UserService.java
new file mode 100644
index 0000000..de94d64
--- /dev/null
+++ b/full/src/main/java/de/ids_mannheim/korap/service/UserService.java
@@ -0,0 +1,16 @@
+package de.ids_mannheim.korap.service;
+
+import org.springframework.stereotype.Service;
+
+import com.fasterxml.jackson.databind.JsonNode;
+import com.fasterxml.jackson.databind.ObjectMapper;
+
+@Service
+public class UserService {
+
+    final static ObjectMapper mapper = new ObjectMapper();
+    
+    public JsonNode retrieveUserInfo (String username) {
+        return mapper.createObjectNode().put("username", username);
+    }
+}
diff --git a/full/src/main/java/de/ids_mannheim/korap/web/controller/UserController.java b/full/src/main/java/de/ids_mannheim/korap/web/controller/UserController.java
new file mode 100644
index 0000000..b0b6d6d
--- /dev/null
+++ b/full/src/main/java/de/ids_mannheim/korap/web/controller/UserController.java
@@ -0,0 +1,52 @@
+package de.ids_mannheim.korap.web.controller;
+
+import javax.ws.rs.GET;
+import javax.ws.rs.Path;
+import javax.ws.rs.Produces;
+import javax.ws.rs.core.Context;
+import javax.ws.rs.core.MediaType;
+import javax.ws.rs.core.SecurityContext;
+
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Controller;
+
+import com.fasterxml.jackson.databind.JsonNode;
+
+import de.ids_mannheim.korap.constant.OAuth2Scope;
+import de.ids_mannheim.korap.exceptions.KustvaktException;
+import de.ids_mannheim.korap.oauth2.service.OAuth2ScopeService;
+import de.ids_mannheim.korap.security.context.TokenContext;
+import de.ids_mannheim.korap.service.UserService;
+import de.ids_mannheim.korap.web.KustvaktResponseHandler;
+import de.ids_mannheim.korap.web.filter.APIVersionFilter;
+import de.ids_mannheim.korap.web.filter.AuthenticationFilter;
+import de.ids_mannheim.korap.web.utils.ResourceFilters;
+
+@Controller
+@Path("{version}/user")
+@Produces(MediaType.APPLICATION_JSON + ";charset=utf-8")
+@ResourceFilters({ AuthenticationFilter.class, APIVersionFilter.class})
+public class UserController {
+
+    @Autowired
+    private KustvaktResponseHandler kustvaktResponseHandler;
+    @Autowired
+    private OAuth2ScopeService scopeService;
+    @Autowired
+    private UserService userService;
+
+    @GET
+    @Path("/info")
+    public JsonNode getUsername (
+        @Context SecurityContext securityContext) {
+            TokenContext context =
+                    (TokenContext) securityContext.getUserPrincipal();
+            try {
+                scopeService.verifyScope(context, OAuth2Scope.USER_INFO);
+                return userService.retrieveUserInfo(context.getUsername());
+            }
+            catch (KustvaktException e) {
+                throw kustvaktResponseHandler.throwit(e);
+            }
+        }
+}