diff --git a/docs/static/resources/openapi.json b/docs/static/resources/openapi.json
index 330c629063a..9020e4ba7d2 100644
--- a/docs/static/resources/openapi.json
+++ b/docs/static/resources/openapi.json
@@ -13293,7 +13293,7 @@
         ]
       }
     },
-    "/api/v1/database/test_connection": {
+    "/api/v1/database/test_connection/": {
       "post": {
         "description": "Tests a database connection",
         "requestBody": {
@@ -13343,7 +13343,7 @@
         ]
       }
     },
-    "/api/v1/database/validate_parameters": {
+    "/api/v1/database/validate_parameters/": {
       "post": {
         "description": "Validates parameters used to connect to a database",
         "requestBody": {
diff --git a/superset-frontend/src/SqlLab/actions/sqlLab.js b/superset-frontend/src/SqlLab/actions/sqlLab.js
index 6391ce82c98..6c446467102 100644
--- a/superset-frontend/src/SqlLab/actions/sqlLab.js
+++ b/superset-frontend/src/SqlLab/actions/sqlLab.js
@@ -375,7 +375,7 @@ export function validateQuery(query) {
     };
 
     return SupersetClient.post({
-      endpoint: `/api/v1/database/${query.dbId}/validate_sql`,
+      endpoint: `/api/v1/database/${query.dbId}/validate_sql/`,
       body: JSON.stringify(postPayload),
       headers: { 'Content-Type': 'application/json' },
     })
diff --git a/superset-frontend/src/views/CRUD/hooks.ts b/superset-frontend/src/views/CRUD/hooks.ts
index 2160a68f8d8..49dce7d0800 100644
--- a/superset-frontend/src/views/CRUD/hooks.ts
+++ b/superset-frontend/src/views/CRUD/hooks.ts
@@ -641,7 +641,7 @@ export const testDatabaseConnection = (
   addSuccessToast: (arg0: string) => void,
 ) => {
   SupersetClient.post({
-    endpoint: 'api/v1/database/test_connection',
+    endpoint: 'api/v1/database/test_connection/',
     body: JSON.stringify(connection),
     headers: { 'Content-Type': 'application/json' },
   }).then(
@@ -675,7 +675,7 @@ export function useDatabaseValidation() {
   const getValidation = useCallback(
     (database: Partial<DatabaseObject> | null, onCreate = false) =>
       SupersetClient.post({
-        endpoint: '/api/v1/database/validate_parameters',
+        endpoint: '/api/v1/database/validate_parameters/',
         body: JSON.stringify(database),
         headers: { 'Content-Type': 'application/json' },
       })
diff --git a/superset/databases/api.py b/superset/databases/api.py
index ca8e38aaf29..a6160b0d2f1 100644
--- a/superset/databases/api.py
+++ b/superset/databases/api.py
@@ -662,7 +662,7 @@ class DatabaseRestApi(BaseSupersetModelRestApi):
         self.incr_stats("success", self.select_star.__name__)
         return self.response(200, result=result)
 
-    @expose("/test_connection", methods=["POST"])
+    @expose("/test_connection/", methods=["POST"])
     @protect()
     @statsd_metrics
     @event_logger.log_this_with_context(
@@ -778,7 +778,7 @@ class DatabaseRestApi(BaseSupersetModelRestApi):
             },
         )
 
-    @expose("/<int:pk>/validate_sql", methods=["POST"])
+    @expose("/<int:pk>/validate_sql/", methods=["POST"])
     @protect()
     @statsd_metrics
     @event_logger.log_this_with_context(
@@ -1121,7 +1121,7 @@ class DatabaseRestApi(BaseSupersetModelRestApi):
 
         return self.response(200, databases=response)
 
-    @expose("/validate_parameters", methods=["POST"])
+    @expose("/validate_parameters/", methods=["POST"])
     @protect()
     @statsd_metrics
     @event_logger.log_this_with_context(
diff --git a/superset/templates/superset/models/database/macros.html b/superset/templates/superset/models/database/macros.html
index f1d07220ef5..f1f7a36cde7 100644
--- a/superset/templates/superset/models/database/macros.html
+++ b/superset/templates/superset/models/database/macros.html
@@ -22,7 +22,7 @@
       .append('<button id="testconn" class="btn btn-sm btn-primary">{{ _("Test Connection") }}</button>');
     $("#testconn").click(function(e) {
       e.preventDefault();
-      var url = "/api/v1/database/test_connection";
+      var url = "/api/v1/database/test_connection/";
       var csrf_token = "{{ csrf_token() if csrf_token else '' }}";
 
       $.ajaxSetup({
diff --git a/tests/integration_tests/databases/api_tests.py b/tests/integration_tests/databases/api_tests.py
index fe9228ebf4a..8ff12b2406b 100644
--- a/tests/integration_tests/databases/api_tests.py
+++ b/tests/integration_tests/databases/api_tests.py
@@ -1359,7 +1359,7 @@ class TestDatabaseApi(SupersetTestCase):
             "sqlalchemy_uri": example_db.safe_sqlalchemy_uri(),
             "server_cert": None,
         }
-        url = "api/v1/database/test_connection"
+        url = "api/v1/database/test_connection/"
         rv = self.post_assert_metric(url, data, "test_connection")
         self.assertEqual(rv.status_code, 200)
         self.assertEqual(rv.headers["Content-Type"], "application/json; charset=utf-8")
@@ -1388,7 +1388,7 @@ class TestDatabaseApi(SupersetTestCase):
             "impersonate_user": False,
             "server_cert": None,
         }
-        url = "api/v1/database/test_connection"
+        url = "api/v1/database/test_connection/"
         rv = self.post_assert_metric(url, data, "test_connection")
         self.assertEqual(rv.status_code, 422)
         self.assertEqual(rv.headers["Content-Type"], "application/json; charset=utf-8")
@@ -1454,7 +1454,7 @@ class TestDatabaseApi(SupersetTestCase):
             "impersonate_user": False,
             "server_cert": None,
         }
-        url = "api/v1/database/test_connection"
+        url = "api/v1/database/test_connection/"
         rv = self.post_assert_metric(url, data, "test_connection")
         self.assertEqual(rv.status_code, 400)
         response = json.loads(rv.data.decode("utf-8"))
@@ -1513,7 +1513,7 @@ class TestDatabaseApi(SupersetTestCase):
             "impersonate_user": False,
             "server_cert": None,
         }
-        url = "api/v1/database/test_connection"
+        url = "api/v1/database/test_connection/"
         rv = self.post_assert_metric(url, data, "test_connection")
 
         assert rv.status_code == 422
@@ -2121,7 +2121,7 @@ class TestDatabaseApi(SupersetTestCase):
 
     def test_validate_parameters_invalid_payload_format(self):
         self.login(username="admin")
-        url = "api/v1/database/validate_parameters"
+        url = "api/v1/database/validate_parameters/"
         rv = self.client.post(url, data="INVALID", content_type="text/plain")
         response = json.loads(rv.data.decode("utf-8"))
 
@@ -2146,7 +2146,7 @@ class TestDatabaseApi(SupersetTestCase):
 
     def test_validate_parameters_invalid_payload_schema(self):
         self.login(username="admin")
-        url = "api/v1/database/validate_parameters"
+        url = "api/v1/database/validate_parameters/"
         payload = {"foo": "bar"}
         rv = self.client.post(url, json=payload)
         response = json.loads(rv.data.decode("utf-8"))
@@ -2190,7 +2190,7 @@ class TestDatabaseApi(SupersetTestCase):
 
     def test_validate_parameters_missing_fields(self):
         self.login(username="admin")
-        url = "api/v1/database/validate_parameters"
+        url = "api/v1/database/validate_parameters/"
         payload = {
             "configuration_method": ConfigurationMethod.SQLALCHEMY_FORM,
             "engine": "postgresql",
@@ -2241,7 +2241,7 @@ class TestDatabaseApi(SupersetTestCase):
         is_port_open.return_value = True
 
         self.login(username="admin")
-        url = "api/v1/database/validate_parameters"
+        url = "api/v1/database/validate_parameters/"
         payload = {
             "engine": "postgresql",
             "parameters": defaultdict(dict),
@@ -2265,7 +2265,7 @@ class TestDatabaseApi(SupersetTestCase):
 
     def test_validate_parameters_invalid_port(self):
         self.login(username="admin")
-        url = "api/v1/database/validate_parameters"
+        url = "api/v1/database/validate_parameters/"
         payload = {
             "engine": "postgresql",
             "parameters": defaultdict(dict),
@@ -2324,7 +2324,7 @@ class TestDatabaseApi(SupersetTestCase):
         is_hostname_valid.return_value = False
 
         self.login(username="admin")
-        url = "api/v1/database/validate_parameters"
+        url = "api/v1/database/validate_parameters/"
         payload = {
             "engine": "postgresql",
             "parameters": defaultdict(dict),
@@ -2384,7 +2384,7 @@ class TestDatabaseApi(SupersetTestCase):
         is_hostname_valid.return_value = True
 
         self.login(username="admin")
-        url = "api/v1/database/validate_parameters"
+        url = "api/v1/database/validate_parameters/"
         payload = {
             "engine": "postgresql",
             "parameters": defaultdict(dict),
@@ -2467,7 +2467,7 @@ class TestDatabaseApi(SupersetTestCase):
             pytest.skip("Only presto and PG are implemented")
 
         self.login(username="admin")
-        uri = f"api/v1/database/{example_db.id}/validate_sql"
+        uri = f"api/v1/database/{example_db.id}/validate_sql/"
         rv = self.client.post(uri, json=request_payload)
         response = json.loads(rv.data.decode("utf-8"))
         self.assertEqual(rv.status_code, 200)
@@ -2493,7 +2493,7 @@ class TestDatabaseApi(SupersetTestCase):
             pytest.skip("Only presto and PG are implemented")
 
         self.login(username="admin")
-        uri = f"api/v1/database/{example_db.id}/validate_sql"
+        uri = f"api/v1/database/{example_db.id}/validate_sql/"
         rv = self.client.post(uri, json=request_payload)
         response = json.loads(rv.data.decode("utf-8"))
         self.assertEqual(rv.status_code, 200)
@@ -2525,7 +2525,7 @@ class TestDatabaseApi(SupersetTestCase):
         }
         self.login(username="admin")
         uri = (
-            f"api/v1/database/{self.get_nonexistent_numeric_id(Database)}/validate_sql"
+            f"api/v1/database/{self.get_nonexistent_numeric_id(Database)}/validate_sql/"
         )
         rv = self.client.post(uri, json=request_payload)
         self.assertEqual(rv.status_code, 404)
@@ -2546,7 +2546,7 @@ class TestDatabaseApi(SupersetTestCase):
         }
         self.login(username="admin")
         uri = (
-            f"api/v1/database/{self.get_nonexistent_numeric_id(Database)}/validate_sql"
+            f"api/v1/database/{self.get_nonexistent_numeric_id(Database)}/validate_sql/"
         )
         rv = self.client.post(uri, json=request_payload)
         response = json.loads(rv.data.decode("utf-8"))
@@ -2571,7 +2571,7 @@ class TestDatabaseApi(SupersetTestCase):
 
         example_db = get_example_database()
 
-        uri = f"api/v1/database/{example_db.id}/validate_sql"
+        uri = f"api/v1/database/{example_db.id}/validate_sql/"
         rv = self.client.post(uri, json=request_payload)
         response = json.loads(rv.data.decode("utf-8"))
         self.assertEqual(rv.status_code, 422)
@@ -2624,7 +2624,7 @@ class TestDatabaseApi(SupersetTestCase):
 
         example_db = get_example_database()
 
-        uri = f"api/v1/database/{example_db.id}/validate_sql"
+        uri = f"api/v1/database/{example_db.id}/validate_sql/"
         rv = self.client.post(uri, json=request_payload)
         response = json.loads(rv.data.decode("utf-8"))