diff --git a/gemeinsamforschen/src/main/java/unipotsdam/gf/core/states/PhasesService.java b/gemeinsamforschen/src/main/java/unipotsdam/gf/core/states/PhasesService.java
new file mode 100644
index 0000000000000000000000000000000000000000..e3ad42205b6ae45070ae70f643a9f6e662757a18
--- /dev/null
+++ b/gemeinsamforschen/src/main/java/unipotsdam/gf/core/states/PhasesService.java
@@ -0,0 +1,47 @@
+package unipotsdam.gf.core.states;
+
+import unipotsdam.gf.core.management.Management;
+import unipotsdam.gf.core.management.project.Project;
+import unipotsdam.gf.interfaces.IPhases;
+
+import javax.inject.Inject;
+import javax.ws.rs.*;
+import javax.ws.rs.core.MediaType;
+
+/**
+ * REST API for switching phases
+ * In order to look up the possible phases @see unipotsdam.gf.core.states.ProjectPhase
+ */
+@Path("/phases")
+public class PhasesService  {
+
+    @Inject
+    private IPhases phases;
+
+    @Inject
+    private Management management;
+
+    /**
+     * end phase
+     * @param projectPhase
+     * @param projectId
+     */
+    @Path("/{projectPhase}/projects/{projectId}")
+    @POST
+    @Consumes({MediaType.APPLICATION_XML, MediaType.APPLICATION_JSON})
+    public void endPhase(@PathParam("projectPhase") String projectPhase, @PathParam("projectId") String projectId) {
+        phases.endPhase(ProjectPhase.valueOf(projectPhase), management.getProjectById(projectId));
+    }
+
+    /**
+     * get current phase
+     * @param projectId
+     * @return
+     */
+    @Path("/{projectPhase}/projects/{projectId}")
+    @GET
+    @Produces({MediaType.APPLICATION_XML, MediaType.APPLICATION_JSON})
+    public String getCurrentPhase(@PathParam("projectId") String projectId) {
+        return management.getProjectById(projectId).getPhase();
+    }
+}
diff --git a/gemeinsamforschen/src/main/java/unipotsdam/gf/core/states/ProjectPhase.java b/gemeinsamforschen/src/main/java/unipotsdam/gf/core/states/ProjectPhase.java
index ba8bffad7c29716ddfd9bbb5f049e3f19b0241c4..328b415f28a8379e81258b79eb671e16614e0417 100644
--- a/gemeinsamforschen/src/main/java/unipotsdam/gf/core/states/ProjectPhase.java
+++ b/gemeinsamforschen/src/main/java/unipotsdam/gf/core/states/ProjectPhase.java
@@ -2,5 +2,5 @@ package unipotsdam.gf.core.states;
 
 public enum ProjectPhase {
     CourseCreation, GroupFormation, DossierFeedback, Execution, Assessment,
-    Projectfinished
+    Projectfinished;
 }