diff --git a/CHANGELOG.md b/CHANGELOG.md
index e07527e58..0815e2fd9 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -105,6 +105,7 @@ Inspired from [Keep a Changelog](https://keepachangelog.com/en/1.0.0/)
 - Changed `SearchModelsQuery`, `CreateConnectorRequest` & `RegisterAgentsRequest` to be defined inline of request bodies ([#725](https://github.com/opensearch-project/opensearch-api-specification/pull/725))
 - Changed `indices.data_streams_stats:DataStreamsStatsItem` to instead be `indices._common:DataStreamStats` ([#725](https://github.com/opensearch-project/opensearch-api-specification/pull/725)) 
 - Changed naming of `snapshot._common`'s `Status`, `ShardsStats`, `ShardsStatsStage`, `ShardsStatsSummary` and `ShardsStatsSummaryItem` schemas to be prefixed with `Snapshot` ([#730](https://github.com/opensearch-project/opensearch-api-specification/pull/730))
+- Changed `ml.get_memory` and `ml.get_message` to split out `get_all` variants ([#]())
 
 ## [0.1.0] - 2024-10-25
 
diff --git a/spec/namespaces/ml.yaml b/spec/namespaces/ml.yaml
index 0e430a0ef..439276240 100644
--- a/spec/namespaces/ml.yaml
+++ b/spec/namespaces/ml.yaml
@@ -428,15 +428,16 @@ paths:
           $ref: '#/components/responses/ml.delete_agent@200'
   /_plugins/_ml/memory:
     get:
-      operationId: ml.get_memory.0
-      x-operation-group: ml.get_memory
+      operationId: ml.get_all_memories.0
+      x-operation-group: ml.get_all_memories
       x-version-added: '2.12'
-      description: Get a memory.
-      requestBody:
-        $ref: '#/components/requestBodies/ml.get_memory'
+      description: Get all memories.
+      parameters:
+        - $ref: '#/components/parameters/ml.get_all_memories::query.max_results'
+        - $ref: '#/components/parameters/ml.get_all_memories::query.next_token'
       responses:
         '200':
-          $ref: '#/components/responses/ml.get_memory@200'
+          $ref: '#/components/responses/ml.get_all_memories@200'
     post:
       operationId: ml.create_memory.0
       x-operation-group: ml.create_memory
@@ -449,12 +450,10 @@ paths:
           $ref: '#/components/responses/ml.create_memory@200'
   /_plugins/_ml/memory/{memory_id}:
     get:
-      operationId: ml.get_memory.1
+      operationId: ml.get_memory.0
       x-operation-group: ml.get_memory
       x-version-added: '2.12'
       description: Get a memory.
-      requestBody:
-        $ref: '#/components/requestBodies/ml.get_memory'
       parameters:
         - $ref: '#/components/parameters/ml.get_memory::path.memory_id'
       responses:
@@ -505,15 +504,17 @@ paths:
           $ref: '#/components/responses/ml.search_memory@200'
   /_plugins/_ml/memory/{memory_id}/messages:
     get:
-      operationId: ml.get_message.0
-      x-operation-group: ml.get_message
+      operationId: ml.get_all_messages.0
+      x-operation-group: ml.get_all_messages
       x-version-added: '2.12'
-      description: Get a message.
+      description: Get all messages in a memory.
       parameters:
-        - $ref: '#/components/parameters/ml.get_message::path.memory_id'
+        - $ref: '#/components/parameters/ml.get_all_messages::path.memory_id'
+        - $ref: '#/components/parameters/ml.get_all_messages::query.max_results'
+        - $ref: '#/components/parameters/ml.get_all_messages::query.next_token'
       responses:
         '200':
-          $ref: '#/components/responses/ml.get_message@200'
+          $ref: '#/components/responses/ml.get_all_messages@200'
     post:
       operationId: ml.create_message.0
       x-operation-group: ml.create_message
@@ -528,7 +529,7 @@ paths:
           $ref: '#/components/responses/ml.create_message@200'
   /_plugins/_ml/memory/message/{message_id}:
     get:
-      operationId: ml.get_message.1
+      operationId: ml.get_message.0
       x-operation-group: ml.get_message
       x-version-added: '2.12'
       description: Get a message.
@@ -582,6 +583,8 @@ paths:
       description: Get a message traces.
       parameters:
         - $ref: '#/components/parameters/ml.get_message_traces::path.message_id'
+        - $ref: '#/components/parameters/ml.get_message_traces::query.max_results'
+        - $ref: '#/components/parameters/ml.get_message_traces::query.next_token'
       responses:
         '200':
           $ref: '#/components/responses/ml.get_message_traces@200'
@@ -774,7 +777,7 @@ components:
               version:
                 $ref: '../schemas/_common.yaml#/components/schemas/VersionString'
               model_format:
-                $ref: '../schemas/_common.yaml#/components/schemas/ModelFormat'
+                $ref: '../schemas/ml._common.yaml#/components/schemas/ModelFormat'
               description:
                 type: string
                 description: The model description.
@@ -795,7 +798,7 @@ components:
               version:
                 $ref: '../schemas/_common.yaml#/components/schemas/VersionString'
               model_format:
-                $ref: '../schemas/_common.yaml#/components/schemas/ModelFormat'
+                $ref: '../schemas/ml._common.yaml#/components/schemas/ModelFormat'
               model_group_id:
                 $ref: '../schemas/_common.yaml#/components/schemas/Id'
               model_content_hash_value:
@@ -832,7 +835,7 @@ components:
               version:
                 $ref: '../schemas/_common.yaml#/components/schemas/VersionString'
               model_format:
-                $ref: '../schemas/_common.yaml#/components/schemas/ModelFormat'
+                $ref: '../schemas/ml._common.yaml#/components/schemas/ModelFormat'
               model_group_id:
                 $ref: '../schemas/_common.yaml#/components/schemas/Id'
               model_content_hash_value:
@@ -891,7 +894,7 @@ components:
               version:
                 $ref: '../schemas/_common.yaml#/components/schemas/VersionString'
               model_format:
-                $ref: '../schemas/_common.yaml#/components/schemas/ModelFormat'
+                $ref: '../schemas/ml._common.yaml#/components/schemas/ModelFormat'
               description:
                 type: string
                 description: The model description.
@@ -962,8 +965,6 @@ components:
                 type: array
                 items:
                   $ref: '../schemas/_common.yaml#/components/schemas/Id'
-            required:
-              - model_ids
     ml.unload_model:
       content:
         application/json:
@@ -978,8 +979,6 @@ components:
                 type: array
                 items:
                   $ref: '../schemas/_common.yaml#/components/schemas/Id'
-            required:
-              - model_ids
     ml.predict_model:
       content:
         application/json:
@@ -1171,20 +1170,6 @@ components:
             required:
               - name
               - type
-    ml.get_memory:
-      content:
-        application/json:
-          schema:
-            type: object
-            properties:
-              max_results:
-                type: integer
-                format: int64
-                description: The maximum number of results to return.
-              next_token:
-                type: integer
-                format: int64
-                description: The index of the first memory in the sorted list of memories to return.
     ml.create_memory:
       content:
         application/json:
@@ -1282,7 +1267,9 @@ components:
             type: object
             properties:
               user_rate_limiter:
-                $ref: '../schemas/ml._common.yaml#/components/schemas/UserRateLimiter'
+                type: object
+                additionalProperties:
+                  $ref: '../schemas/ml._common.yaml#/components/schemas/RateLimiter'
     ml.update_controller:
       content:
         application/json:
@@ -1290,7 +1277,9 @@ components:
             type: object
             properties:
               user_rate_limiter:
-                $ref: '../schemas/ml._common.yaml#/components/schemas/UserRateLimiter'
+                type: object
+                additionalProperties:
+                  $ref: '../schemas/ml._common.yaml#/components/schemas/RateLimiter'
               model_id:
                 $ref: '../schemas/_common.yaml#/components/schemas/Name'
     ml.get_profile:
@@ -1477,7 +1466,7 @@ components:
       content:
         application/json:
           schema:
-            $ref: '../schemas/ml._common.yaml#/components/schemas/UpdateModelResponse'
+            $ref: '../schemas/_common.yaml#/components/schemas/WriteResponseBase'
     ml.delete_task@200:
       content:
         application/json:
@@ -1553,7 +1542,23 @@ components:
       content:
         application/json:
           schema:
-            $ref: '../schemas/ml._common.yaml#/components/schemas/GetMemoryResponse'
+            $ref: '../schemas/ml._common.yaml#/components/schemas/Memory'
+    ml.get_all_memories@200:
+      content:
+        application/json:
+          schema:
+            type: object
+            properties:
+              memories:
+                type: array
+                items:
+                    $ref: '../schemas/ml._common.yaml#/components/schemas/Memory'
+              next_token:
+                description: The index of the next memory after the last memory in the returned list.
+                type: integer
+                format: int32
+            required:
+              - memories
     ml.create_memory@200:
       content:
         application/json:
@@ -1599,7 +1604,23 @@ components:
       content:
         application/json:
           schema:
-            $ref: '../schemas/ml._common.yaml#/components/schemas/GetMessageResponse'
+            $ref: '../schemas/ml._common.yaml#/components/schemas/Message'
+    ml.get_all_messages@200:
+      content:
+        application/json:
+          schema:
+            type: object
+            properties:
+              messages:
+                type: array
+                items:
+                  $ref: '../schemas/ml._common.yaml#/components/schemas/Message'
+              next_token:
+                description: The index of the next message after the last message in the returned list.
+                type: integer
+                format: int32
+            required:
+              - messages
     ml.update_message@200:
       content:
         application/json:
@@ -1614,7 +1635,17 @@ components:
       content:
         application/json:
           schema:
-            $ref: '../schemas/ml._common.yaml#/components/schemas/GetMessageTracesResponse'
+            type: object
+            properties:
+              traces:
+                type: array
+                items:
+                  $ref: '../schemas/ml._common.yaml#/components/schemas/Message'
+              next_token:
+                type: integer
+                format: int32
+            required:
+              - traces
     ml.get_controller@200:
       content:
         application/json:
@@ -1622,7 +1653,9 @@ components:
             type: object
             properties:
               user_rate_limiter:
-                $ref: '../schemas/ml._common.yaml#/components/schemas/UserRateLimiter'
+                type: object
+                additionalProperties:
+                  $ref: '../schemas/ml._common.yaml#/components/schemas/RateLimiter'
               model_id:
                 $ref: '../schemas/_common.yaml#/components/schemas/Name'
     ml.create_controller@200:
@@ -1661,6 +1694,22 @@ components:
           schema:
             $ref: '../schemas/ml._common.yaml#/components/schemas/GetProfileResponse'
   parameters:
+    ml.get_all_memories::query.max_results:
+      name: max_results
+      in: query
+      required: false
+      schema:
+        description: The maximum number of results to return. If there are fewer memories than the number set in `max_results`, the response returns only the number of memories that exist. Default is `10`.
+        type: integer
+        format: int32
+    ml.get_all_memories::query.next_token:
+      name: next_token
+      in: query
+      required: false
+      schema:
+        description: The index of the first memory in the sorted list of memories to return. Memories are ordered by `create_time`. For example, if memories `A`, `B`, and `C` exist, `next_token=1` returns memories `B` and `C`. Default is `0` (return all memories).
+        type: integer
+        format: int32
     ml.get_model_group::path.model_group_id:
       name: model_group_id
       in: path
@@ -1837,12 +1886,26 @@ components:
       required: true
       schema:
         type: string
-    ml.get_message::path.memory_id:
+    ml.get_all_messages::path.memory_id:
       name: memory_id
       in: path
       required: true
       schema:
         type: string
+    ml.get_all_messages::query.max_results:
+      name: max_results
+      in: query
+      required: false
+      schema:
+        type: integer
+        format: int32
+    ml.get_all_messages::query.next_token:
+      name: next_token
+      in: query
+      required: false
+      schema:
+        type: integer
+        format: int32
     ml.get_message::path.message_id:
       name: message_id
       in: path
@@ -1867,6 +1930,20 @@ components:
       required: true
       schema:
         type: string
+    ml.get_message_traces::query.max_results:
+      name: max_results
+      in: query
+      required: false
+      schema:
+        type: integer
+        format: int32
+    ml.get_message_traces::query.next_token:
+      name: next_token
+      in: query
+      required: false
+      schema:
+        type: integer
+        format: int32
     ml.get_controller::path.model_id:
       name: model_id
       in: path
diff --git a/spec/schemas/_common.yaml b/spec/schemas/_common.yaml
index 9f9a838eb..3130f33c1 100644
--- a/spec/schemas/_common.yaml
+++ b/spec/schemas/_common.yaml
@@ -2474,9 +2474,4 @@ components:
           type: number
       required:
         - active_threads
-        - thread_executions
-    ModelFormat:
-      type: string
-      enum:
-        - ONNX
-        - TORCH_SCRIPT
\ No newline at end of file
+        - thread_executions
\ No newline at end of file
diff --git a/spec/schemas/ml._common.yaml b/spec/schemas/ml._common.yaml
index 77d7b6d38..4aec5b113 100644
--- a/spec/schemas/ml._common.yaml
+++ b/spec/schemas/ml._common.yaml
@@ -136,7 +136,7 @@ components:
         model_config:
           $ref: '#/components/schemas/ModelConfig'
         model_format:
-          $ref: '_common.yaml#/components/schemas/ModelFormat'
+          $ref: '#/components/schemas/ModelFormat'
         model_task_type:
           type: string
           description: The model task type.
@@ -795,7 +795,7 @@ components:
           type: string
           description: The model version.
         model_format:
-          $ref: '_common.yaml#/components/schemas/ModelFormat'
+          $ref: '#/components/schemas/ModelFormat'
         model_state:
           type: string
           description: The model state.
@@ -841,9 +841,8 @@ components:
       type: object
       properties:
         limit:
-          type: integer
-          format: int64
           description: The maximum limit.
+          $ref: '_common.yaml#/components/schemas/StringifiedDouble'
         unit:
           type: string
           description: The unit of time.
@@ -898,30 +897,6 @@ components:
         response_validation_regex:
           type: string
           description: The response validation regex.
-    UpdateModelResponse:
-      type: object
-      properties:
-        _index:
-          $ref: '_common.yaml#/components/schemas/IndexName'
-        _id:
-          $ref: '_common.yaml#/components/schemas/Id'
-        _version:
-          $ref: '_common.yaml#/components/schemas/VersionNumber'
-        result:
-          $ref: '_common.yaml#/components/schemas/Result'
-        forced_refresh:
-          type: boolean
-          description: Whether the model is forced to refresh.
-        _shards:
-          $ref: '_common.yaml#/components/schemas/ShardStatistics'
-        _seq_no:
-          $ref: '_common.yaml#/components/schemas/SequenceNumber'
-        _primary_term:
-          type: integer
-          format: int64
-          description: The primary term.
-      required:
-        - _index
     Task:
       type: object
       properties:
@@ -1169,19 +1144,6 @@ components:
           description: The last updated time.
     SearchConnectorsResponse:
       $ref: '#/components/schemas/SearchResponse'
-    GetMemoryResponse:
-      oneOf:
-        - $ref: '#/components/schemas/Memory'
-        - type: object
-          properties:
-            memories:
-              type: array
-              items:
-                $ref: '#/components/schemas/Memory'
-            next_token:
-              type: integer
-              format: int64
-              description: The index of the first memory in the sorted list of memories.
     SearchMemoryResponse:
       $ref: '#/components/schemas/SearchResponse'
     Message:
@@ -1216,47 +1178,13 @@ components:
           type: integer
           format: int64
           description: The trace number.
-    GetMessageResponse:
-      oneOf:
-        - $ref: '#/components/schemas/Message'
-        - type: object
-          properties:
-            messages:
-              type: array
-              items:
-                $ref: '#/components/schemas/Message'
     SearchMessageResponse:
       $ref: '#/components/schemas/SearchResponse'
-    GetMessageTracesResponse:
-      type: object
-      properties:
-        traces:
-          type: array
-          items:
-            $ref: '#/components/schemas/Message'
-    UserRateLimiter:
-      type: object
-      properties:
-        user1:
-          $ref: '#/components/schemas/User'
-      additionalProperties: true
-    User:
-      type: object
-      properties:
-        limit:
-          type: [integer, string]
-          description: Max Predict API calls per user per time unit.
-        unit:
-          type: string
-          description: The unit of time.
-          enum:
-            - DAYS
-            - HOURS
-            - MICROSECONDS
-            - MILLISECONDS
-            - MINUTES
-            - NANOSECONDS
-            - SECONDS
+    ModelFormat:
+      type: string
+      enum:
+        - ONNX
+        - TORCH_SCRIPT
     ProfileRequest:
       type: object
       properties:
@@ -1367,4 +1295,4 @@ components:
     Tasks:
       type: object
       additionalProperties:
-        $ref: '#/components/schemas/Task'
\ No newline at end of file
+        $ref: '#/components/schemas/Task'