diff --git a/communicator/api.yml b/communicator/api.yml
index 9c081b2..82a6c6d 100644
--- a/communicator/api.yml
+++ b/communicator/api.yml
@@ -384,54 +384,18 @@ paths:
       security:
         - ApiKeyAuth: []
       parameters:
-        - in: query
-          name: start_date
-          required: false
-          description: Return all samples modified AFTER the given date, provided as an ISO string (ex '2021-01-01T01:01:00')
-          schema:
-            type: string
-        - in: query
-          name: end_date
-          required: false
-          description: Return all samples modified AFTER the given date, provided as an ISO string (ex '2021-01-01T01:01:00')
-          schema:
-            type: string
-        - in: query
-          name: student_id
-          required: false
-          description: Return all samples modified AFTER the given date, provided as an ISO string (ex '2021-01-01T01:01:00')
-          schema:
-            type: string
-        - in: query
-          name: compute_id
-          required: false
-          description: Return all samples modified AFTER the given date, provided as an ISO string (ex '2021-01-01T01:01:00')
-          schema:
-            type: string
-        - in: query
-          name: location
-          required: false
-          description: Return all samples modified AFTER the given date, provided as an ISO string (ex '2021-01-01T01:01:00')
-          schema:
-            type: string
-        - in: query
-          name: include_tests
-          required: false
-          description: Return all samples modified AFTER the given date, provided as an ISO string (ex '2021-01-01T01:01:00')
-          schema:
-            type: string
-        - in: query
-          name: page
-          required: false
-          description: Return all samples modified AFTER the given date, provided as an ISO string (ex '2021-01-01T01:01:00')
-          schema:
-            type: int
         - in: query
           name: last_modified
           required: false
           description: Return all samples modified AFTER the given date, provided as an ISO string (ex '2021-01-01T01:01:00')
           schema:
             type: string
+        - in: query
+          name: created_on
+          required: false
+          description: Return all samples added to the database AFTER the given date, provided as an ISO string (ex '2021-01-01T01:01:00')
+          schema:
+            type: string
       responses:
         '200':
           description: a list of samples