diff --git a/apps/emqx_bridge/test/emqx_bridge_v2_testlib.erl b/apps/emqx_bridge/test/emqx_bridge_v2_testlib.erl
index 5a2b6b000..6c48f5663 100644
--- a/apps/emqx_bridge/test/emqx_bridge_v2_testlib.erl
+++ b/apps/emqx_bridge/test/emqx_bridge_v2_testlib.erl
@@ -312,6 +312,25 @@ create_rule_and_action_http(BridgeType, RuleTopic, Config, Opts) ->
             Error
     end.
 
+api_spec_schemas(Root) ->
+    Method = get,
+    Path = emqx_mgmt_api_test_util:api_path(["schemas", Root]),
+    Params = [],
+    AuthHeader = [],
+    Opts = #{return_all => true},
+    case emqx_mgmt_api_test_util:request_api(Method, Path, "", AuthHeader, Params, Opts) of
+        {ok, {{_, 200, _}, _, Res0}} ->
+            #{<<"components">> := #{<<"schemas">> := Schemas}} =
+                emqx_utils_json:decode(Res0, [return_maps]),
+            Schemas
+    end.
+
+bridges_api_spec_schemas() ->
+    api_spec_schemas("bridges").
+
+actions_api_spec_schemas() ->
+    api_spec_schemas("actions").
+
 %%------------------------------------------------------------------------------
 %% Testcases
 %%------------------------------------------------------------------------------
diff --git a/apps/emqx_bridge_azure_event_hub/src/emqx_bridge_azure_event_hub.erl b/apps/emqx_bridge_azure_event_hub/src/emqx_bridge_azure_event_hub.erl
index eb364bdff..553d77326 100644
--- a/apps/emqx_bridge_azure_event_hub/src/emqx_bridge_azure_event_hub.erl
+++ b/apps/emqx_bridge_azure_event_hub/src/emqx_bridge_azure_event_hub.erl
@@ -126,7 +126,7 @@ fields(action) ->
 fields(actions) ->
     Fields =
         override(
-            emqx_bridge_kafka:producer_opts(),
+            emqx_bridge_kafka:producer_opts(action),
             bridge_v2_overrides()
         ) ++
             [
diff --git a/apps/emqx_bridge_azure_event_hub/test/emqx_bridge_azure_event_hub_v2_SUITE.erl b/apps/emqx_bridge_azure_event_hub/test/emqx_bridge_azure_event_hub_v2_SUITE.erl
index 206cc08e0..4d441ea0b 100644
--- a/apps/emqx_bridge_azure_event_hub/test/emqx_bridge_azure_event_hub_v2_SUITE.erl
+++ b/apps/emqx_bridge_azure_event_hub/test/emqx_bridge_azure_event_hub_v2_SUITE.erl
@@ -272,6 +272,22 @@ make_message() ->
         timestamp => Time
     }.
 
+bridge_api_spec_props_for_get() ->
+    #{
+        <<"bridge_azure_event_hub.get_producer">> :=
+            #{<<"properties">> := Props}
+    } =
+        emqx_bridge_v2_testlib:bridges_api_spec_schemas(),
+    Props.
+
+action_api_spec_props_for_get() ->
+    #{
+        <<"bridge_azure_event_hub.get_bridge_v2">> :=
+            #{<<"properties">> := Props}
+    } =
+        emqx_bridge_v2_testlib:actions_api_spec_schemas(),
+    Props.
+
 %%------------------------------------------------------------------------------
 %% Testcases
 %%------------------------------------------------------------------------------
@@ -341,3 +357,14 @@ t_same_name_azure_kafka_bridges(Config) ->
         end
     ),
     ok.
+
+t_parameters_key_api_spec(_Config) ->
+    BridgeProps = bridge_api_spec_props_for_get(),
+    ?assert(is_map_key(<<"kafka">>, BridgeProps), #{bridge_props => BridgeProps}),
+    ?assertNot(is_map_key(<<"parameters">>, BridgeProps), #{bridge_props => BridgeProps}),
+
+    ActionProps = action_api_spec_props_for_get(),
+    ?assertNot(is_map_key(<<"kafka">>, ActionProps), #{action_props => ActionProps}),
+    ?assert(is_map_key(<<"parameters">>, ActionProps), #{action_props => ActionProps}),
+
+    ok.
diff --git a/apps/emqx_bridge_kafka/src/emqx_bridge_kafka.erl b/apps/emqx_bridge_kafka/src/emqx_bridge_kafka.erl
index b3934c7bb..8c90e0896 100644
--- a/apps/emqx_bridge_kafka/src/emqx_bridge_kafka.erl
+++ b/apps/emqx_bridge_kafka/src/emqx_bridge_kafka.erl
@@ -29,7 +29,7 @@
     desc/1,
     host_opts/0,
     ssl_client_opts_fields/0,
-    producer_opts/0
+    producer_opts/1
 ]).
 
 -export([
@@ -261,7 +261,7 @@ fields("config_producer") ->
 fields("config_consumer") ->
     fields(kafka_consumer);
 fields(kafka_producer) ->
-    connector_config_fields() ++ producer_opts();
+    connector_config_fields() ++ producer_opts(v1);
 fields(kafka_producer_action) ->
     [
         {enable, mk(boolean(), #{desc => ?DESC("config_enable"), default => true})},
@@ -270,7 +270,7 @@ fields(kafka_producer_action) ->
                 desc => ?DESC(emqx_connector_schema, "connector_field"), required => true
             })},
         {description, emqx_schema:description_schema()}
-    ] ++ producer_opts();
+    ] ++ producer_opts(action);
 fields(kafka_consumer) ->
     connector_config_fields() ++ fields(consumer_opts);
 fields(ssl_client_opts) ->
@@ -601,25 +601,25 @@ connector_config_fields() ->
         {ssl, mk(ref(ssl_client_opts), #{})}
     ].
 
-producer_opts() ->
+producer_opts(ActionOrBridgeV1) ->
     [
         %% Note: there's an implicit convention in `emqx_bridge' that,
         %% for egress bridges with this config, the published messages
         %% will be forwarded to such bridges.
         {local_topic, mk(binary(), #{required => false, desc => ?DESC(mqtt_topic)})},
-        parameters_field(),
+        parameters_field(ActionOrBridgeV1),
         {resource_opts, mk(ref(resource_opts), #{default => #{}, desc => ?DESC(resource_opts)})}
     ].
 
 %% Since e5.3.1, we want to rename the field 'kafka' to 'parameters'
 %% Hoever we need to keep it backward compatible for generated schema json (version 0.1.0)
 %% since schema is data for the 'schemas' API.
-parameters_field() ->
+parameters_field(ActionOrBridgeV1) ->
     {Name, Alias} =
-        case get(emqx_bridge_schema_version) of
-            <<"0.1.0">> ->
+        case ActionOrBridgeV1 of
+            v1 ->
                 {kafka, parameters};
-            _ ->
+            action ->
                 {parameters, kafka}
         end,
     {Name,
diff --git a/apps/emqx_bridge_kafka/src/emqx_bridge_kafka_action_info.erl b/apps/emqx_bridge_kafka/src/emqx_bridge_kafka_action_info.erl
index 7b6a946d0..31efc7c11 100644
--- a/apps/emqx_bridge_kafka/src/emqx_bridge_kafka_action_info.erl
+++ b/apps/emqx_bridge_kafka/src/emqx_bridge_kafka_action_info.erl
@@ -32,9 +32,8 @@ bridge_v1_config_to_action_config(BridgeV1Conf, ConnectorName) ->
     Config0 = emqx_action_info:transform_bridge_v1_config_to_action_config(
         BridgeV1Conf, ConnectorName, schema_module(), kafka_producer
     ),
-    KafkaMap = emqx_utils_maps:deep_get([<<"parameters">>, <<"kafka">>], Config0, #{}),
-    Config1 = emqx_utils_maps:deep_remove([<<"parameters">>, <<"kafka">>], Config0),
-    Config2 = emqx_utils_maps:deep_merge(Config1, #{<<"parameters">> => KafkaMap}),
+    KafkaMap = maps:get(<<"kafka">>, BridgeV1Conf, #{}),
+    Config2 = emqx_utils_maps:deep_merge(Config0, #{<<"parameters">> => KafkaMap}),
     maps:with(producer_action_field_keys(), Config2).
 
 %%------------------------------------------------------------------------------------------
diff --git a/apps/emqx_bridge_kafka/test/emqx_bridge_kafka_tests.erl b/apps/emqx_bridge_kafka/test/emqx_bridge_kafka_tests.erl
index 1d9682b9b..69794f2b9 100644
--- a/apps/emqx_bridge_kafka/test/emqx_bridge_kafka_tests.erl
+++ b/apps/emqx_bridge_kafka/test/emqx_bridge_kafka_tests.erl
@@ -25,7 +25,7 @@ kafka_producer_test() ->
                     <<"kafka_producer">> :=
                         #{
                             <<"myproducer">> :=
-                                #{<<"parameters">> := #{}}
+                                #{<<"kafka">> := #{}}
                         }
                 }
         },
@@ -52,7 +52,7 @@ kafka_producer_test() ->
                         #{
                             <<"myproducer">> :=
                                 #{
-                                    <<"parameters">> := #{},
+                                    <<"kafka">> := #{},
                                     <<"local_topic">> := <<"mqtt/local">>
                                 }
                         }
@@ -68,7 +68,7 @@ kafka_producer_test() ->
                         #{
                             <<"myproducer">> :=
                                 #{
-                                    <<"parameters">> := #{},
+                                    <<"kafka">> := #{},
                                     <<"local_topic">> := <<"mqtt/local">>
                                 }
                         }
@@ -166,7 +166,7 @@ message_key_dispatch_validations_test() ->
     ?assertThrow(
         {_, [
             #{
-                path := "bridges.kafka_producer.myproducer.parameters",
+                path := "bridges.kafka_producer.myproducer.kafka",
                 reason := "Message key cannot be empty when `key_dispatch` strategy is used"
             }
         ]},
@@ -175,7 +175,7 @@ message_key_dispatch_validations_test() ->
     ?assertThrow(
         {_, [
             #{
-                path := "bridges.kafka_producer.myproducer.parameters",
+                path := "bridges.kafka_producer.myproducer.kafka",
                 reason := "Message key cannot be empty when `key_dispatch` strategy is used"
             }
         ]},
diff --git a/apps/emqx_bridge_kafka/test/emqx_bridge_v2_kafka_producer_SUITE.erl b/apps/emqx_bridge_kafka/test/emqx_bridge_v2_kafka_producer_SUITE.erl
index 6c48146cd..8ce3b7f6b 100644
--- a/apps/emqx_bridge_kafka/test/emqx_bridge_v2_kafka_producer_SUITE.erl
+++ b/apps/emqx_bridge_kafka/test/emqx_bridge_v2_kafka_producer_SUITE.erl
@@ -182,6 +182,22 @@ create_action(Name, Config) ->
     on_exit(fun() -> emqx_bridge_v2:remove(?TYPE, Name) end),
     Res.
 
+bridge_api_spec_props_for_get() ->
+    #{
+        <<"bridge_kafka.get_producer">> :=
+            #{<<"properties">> := Props}
+    } =
+        emqx_bridge_v2_testlib:bridges_api_spec_schemas(),
+    Props.
+
+action_api_spec_props_for_get() ->
+    #{
+        <<"bridge_kafka.get_bridge_v2">> :=
+            #{<<"properties">> := Props}
+    } =
+        emqx_bridge_v2_testlib:actions_api_spec_schemas(),
+    Props.
+
 %%------------------------------------------------------------------------------
 %% Testcases
 %%------------------------------------------------------------------------------
@@ -342,3 +358,14 @@ t_bad_url(_Config) ->
     ),
     ?assertMatch({ok, #{status := connecting}}, emqx_bridge_v2:lookup(?TYPE, ActionName)),
     ok.
+
+t_parameters_key_api_spec(_Config) ->
+    BridgeProps = bridge_api_spec_props_for_get(),
+    ?assert(is_map_key(<<"kafka">>, BridgeProps), #{bridge_props => BridgeProps}),
+    ?assertNot(is_map_key(<<"parameters">>, BridgeProps), #{bridge_props => BridgeProps}),
+
+    ActionProps = action_api_spec_props_for_get(),
+    ?assertNot(is_map_key(<<"kafka">>, ActionProps), #{action_props => ActionProps}),
+    ?assert(is_map_key(<<"parameters">>, ActionProps), #{action_props => ActionProps}),
+
+    ok.
diff --git a/apps/emqx_bridge_pulsar/test/emqx_bridge_pulsar_tests.erl b/apps/emqx_bridge_pulsar/test/emqx_bridge_pulsar_tests.erl
index 29299dcc9..5492bb2a8 100644
--- a/apps/emqx_bridge_pulsar/test/emqx_bridge_pulsar_tests.erl
+++ b/apps/emqx_bridge_pulsar/test/emqx_bridge_pulsar_tests.erl
@@ -10,8 +10,11 @@
 %% Test cases
 %%===========================================================================
 
+atoms() ->
+    [my_producer].
+
 pulsar_producer_validations_test() ->
-    Name = list_to_atom("my_producer"),
+    Name = hd(atoms()),
     Conf0 = pulsar_producer_hocon(),
     Conf1 =
         Conf0 ++
diff --git a/apps/emqx_conf/src/emqx_conf.erl b/apps/emqx_conf/src/emqx_conf.erl
index c986a65ee..7ff06b0ef 100644
--- a/apps/emqx_conf/src/emqx_conf.erl
+++ b/apps/emqx_conf/src/emqx_conf.erl
@@ -193,12 +193,7 @@ hotconf_schema_json() ->
 bridge_schema_json() ->
     Version = <<"0.1.0">>,
     SchemaInfo = #{title => <<"EMQX Data Bridge API Schema">>, version => Version},
-    put(emqx_bridge_schema_version, Version),
-    try
-        gen_api_schema_json_iodata(emqx_bridge_api, SchemaInfo)
-    after
-        erase(emqx_bridge_schema_version)
-    end.
+    gen_api_schema_json_iodata(emqx_bridge_api, SchemaInfo).
 
 %% TODO: remove it and also remove hocon_md.erl and friends.
 %% markdown generation from schema is a failure and we are moving to an interactive