diff --git a/app/src/main/java/com/etesync/syncadapter/journalmanager/JournalManager.java b/app/src/main/java/com/etesync/syncadapter/journalmanager/JournalManager.java
index 2fc076f1..de5b2095 100644
--- a/app/src/main/java/com/etesync/syncadapter/journalmanager/JournalManager.java
+++ b/app/src/main/java/com/etesync/syncadapter/journalmanager/JournalManager.java
@@ -26,6 +26,8 @@ import static com.etesync.syncadapter.journalmanager.Crypto.toHex;
 public class JournalManager extends BaseManager {
     final static private Type journalType = new TypeToken<List<Journal>>() {
     }.getType();
+    final static private Type memberType = new TypeToken<List<Member>>() {
+    }.getType();
 
 
     public JournalManager(OkHttpClient httpClient, HttpUrl remote) {
@@ -90,6 +92,43 @@ public class JournalManager extends BaseManager {
         newCall(request);
     }
 
+    private HttpUrl getMemberRemote(Journal journal) {
+        return this.remote.resolve(journal.getUid() + "/members/");
+    }
+
+    public List<Member> listMembers(Journal journal) throws Exceptions.HttpException, Exceptions.IntegrityException, Exceptions.GenericCryptoException {
+        Request request = new Request.Builder()
+                .get()
+                .url(getMemberRemote(journal))
+                .build();
+
+        Response response = newCall(request);
+        ResponseBody body = response.body();
+        return GsonHelper.gson.fromJson(body.charStream(), memberType);
+    }
+
+    public void deleteMember(Journal journal, Member member) throws Exceptions.HttpException {
+        RequestBody body = RequestBody.create(JSON, member.toJson());
+
+        Request request = new Request.Builder()
+                .delete(body)
+                .url(getMemberRemote(journal))
+                .build();
+
+        newCall(request);
+    }
+
+    public void addMember(Journal journal, Member member) throws Exceptions.HttpException {
+        RequestBody body = RequestBody.create(JSON, member.toJson());
+
+        Request request = new Request.Builder()
+                .post(body)
+                .url(getMemberRemote(journal))
+                .build();
+
+        newCall(request);
+    }
+
     public static class Journal extends Base {
         @Getter
         private int version = -1;
@@ -140,4 +179,24 @@ public class JournalManager extends BaseManager {
             return ret;
         }
     }
+
+    public static class Member {
+        @Getter
+        private String user;
+        @Getter
+        private byte[] key;
+
+        @SuppressWarnings("unused")
+        private Member() {
+        }
+
+        public Member(String user, byte[] encryptedKey) {
+            this.user = user;
+            this.key = encryptedKey;
+        }
+
+        String toJson() {
+            return GsonHelper.gson.toJson(this, getClass());
+        }
+    }
 }
diff --git a/app/src/test/java/com/etesync/syncadapter/journalmanager/ServiceTest.java b/app/src/test/java/com/etesync/syncadapter/journalmanager/ServiceTest.java
index 5b4d03c7..b98bdf8b 100644
--- a/app/src/test/java/com/etesync/syncadapter/journalmanager/ServiceTest.java
+++ b/app/src/test/java/com/etesync/syncadapter/journalmanager/ServiceTest.java
@@ -31,7 +31,6 @@ import okio.BufferedSink;
 
 import static org.junit.Assert.assertArrayEquals;
 import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertNotEquals;
 import static org.junit.Assert.assertNotNull;
 import static org.junit.Assert.assertNull;
 
@@ -232,4 +231,29 @@ public class ServiceTest {
         userInfo = manager.get(cryptoManager, Helpers.USER);
         assertNull(userInfo);
     }
+
+
+    @Test
+    public void testJournalMember() throws IOException, Exceptions.HttpException, Exceptions.GenericCryptoException, Exceptions.IntegrityException {
+        JournalManager journalManager = new JournalManager(httpClient, remote);
+        CollectionInfo info = CollectionInfo.defaultForServiceType(CollectionInfo.Type.ADDRESS_BOOK);
+        info.uid = JournalManager.Journal.genUid();
+        info.displayName = "Test";
+        Crypto.CryptoManager crypto = new Crypto.CryptoManager(info.version, Helpers.keyBase64, info.uid);
+        JournalManager.Journal journal = new JournalManager.Journal(crypto, info.toJson(), info.uid);
+        journalManager.putJournal(journal);
+
+        assertEquals(journalManager.listMembers(journal).size(), 0);
+
+        // Test inviting ourselves
+        JournalManager.Member member = new JournalManager.Member(Helpers.USER, "test".getBytes(Charsets.UTF_8));
+        journalManager.addMember(journal, member);
+
+        assertEquals(journalManager.listMembers(journal).size(), 1);
+
+        // Uninviting ourselves
+        journalManager.deleteMember(journal, member);
+
+        assertEquals(journalManager.listMembers(journal).size(), 0);
+    }
 }