diff --git a/client/src/main/java/org/opensearch/ml/client/MemoryClient.java b/client/src/main/java/org/opensearch/ml/client/MemoryClient.java
index f01eaced5b..ddc57f6c63 100644
--- a/client/src/main/java/org/opensearch/ml/client/MemoryClient.java
+++ b/client/src/main/java/org/opensearch/ml/client/MemoryClient.java
@@ -15,23 +15,73 @@
 
 public interface MemoryClient {
 
+    /**
+     * Create a conversation using the transport-layer CreateConversation Action
+     * @param request Request containing (optional) conversation name
+     * @param listener Gets the CreateConversationResponse (contains new conversation id)
+     */
     void createConversation(CreateConversationRequest request, ActionListener<CreateConversationResponse> listener);
 
+    /**
+     * Create a conversation using the transport-layer CreateConversation Action
+     * @param request Request containing (optional) conversation name
+     * @return ActionFuture for the CreateConversationResponse (contains new conversation id)
+     */
     ActionFuture<CreateConversationResponse> createConversation(CreateConversationRequest request);
 
+    /**
+     * Create an interaction using the transport-layer CreateInteraction Action
+     * @param request Request containing interaction fields
+     * @param listener Gets the CreateInteractionResponse containing the id of the new interaction
+     */
     void createInteraction(CreateInteractionRequest request, ActionListener<CreateInteractionResponse> listener);
 
+    /**
+     * Create an interaction using the transport-layer CreateInteraction Action
+     * @param request Request containing interaction fields
+     * @return ActionFuture for the CreateInteractionResponse containing the id of the new interaction
+     */
     ActionFuture<CreateInteractionResponse> createInteraction(CreateInteractionRequest request);
 
+    /**
+     * Get a list of conversations using the transport-layer GetConversations Action
+     * @param request Request containing number of interactions to get and what page to get them from
+     * @param listener Gets the GetConversationsResponse containing the list of conversations
+     */
     void getConversations(GetConversationsRequest request, ActionListener<GetConversationsResponse> listener);
 
+    /**
+     * Get a list of conversations using the transport-layer GetConversations Action
+     * @param request Request containing number of interactions to get and what page to get them from
+     * @return ActionFuture for the GetConversationsResponse containing the list of conversations
+     */
     ActionFuture<GetConversationsResponse> getConversations(GetConversationsRequest request);
 
+    /**
+     * Get a list of interactions belonging to a conversation using the transport-layer GetInteractions Action
+     * @param request Request containing the conversationId, number of interactions to get, and page to get them from
+     * @param listener Gets the GetInteractionsResponse containing the list of interactions
+     */
     void getInteractions(GetInteractionsRequest request, ActionListener<GetInteractionsResponse> listener);
 
+    /**
+     * Get a list of interactions belonging to a conversation using the transport-layer GetInteractions Action
+     * @param request Request containing the conversationId, number of interactions to get, and page to get them from
+     * @return ActionFuture for the GetInteractionsResponse containing the list of interactions
+     */
     ActionFuture<GetInteractionsResponse> getInteractions(GetInteractionsRequest request);
 
+    /**
+     * Delete a conversation and all of its interactions
+     * @param request Request containing the id of the conversation to delete
+     * @param listener Gets the DeleteConversationsResponse containing whether the deletion was successful
+     */
     void deleteConversation(DeleteConversationRequest request, ActionListener<DeleteConversationResponse> listener);
 
+    /**
+     * Delete a conversation and all of its interactions
+     * @param request Request containing the id of the conversation to delete
+     * @return ActionFuture for the DeleteConversationsResponse containing whether the deletion was successful
+     */
     ActionFuture<DeleteConversationResponse> deleteConversation(DeleteConversationRequest request);
 }