diff --git a/proto/spaceone/api/identity/v2/api_key.proto b/proto/spaceone/api/identity/v2/api_key.proto
index e8d50dac5..a9cd3a6e5 100644
--- a/proto/spaceone/api/identity/v2/api_key.proto
+++ b/proto/spaceone/api/identity/v2/api_key.proto
@@ -46,12 +46,7 @@ service APIKey {
         };
     }
 
-    rpc verify (VerifyAPIKeyRequest) returns (APIKeyInfo) {
-        option (google.api.http) = {
-            post: "/identity/v2/api-key/verify"
-            body: "*"
-        };
-    }
+    rpc verify (VerifyAPIKeyRequest) returns (APIKeyInfo) {}
 
     rpc get (APIKeyRequest) returns (APIKeyInfo) {
         option (google.api.http) = {
@@ -93,15 +88,19 @@ message UpdateAPIKeyRequest {
 
 message VerifyAPIKeyRequest {
     enum API_KEY_TYPE {
-        NONE_API_KEY_TYPE = 0;
-        ACCESS_KEY = 1;
-        SECRET_KEY = 2;
+        NONE = 0;
+        APP = 1;
+        USER = 2;
     }
+
     string api_key_id = 1;
     API_KEY_TYPE api_key_type = 2;
     string domain_id = 21;
-    string app_id = 22;
-    string user_id = 23;
+
+    oneof api_key_info {
+        string app_id = 22;
+        string user_id = 23;
+    }
 }
 message APIKeyRequest {
     string api_key_id = 1;
diff --git a/proto/spaceone/api/identity/v2/app.proto b/proto/spaceone/api/identity/v2/app.proto
index 2a0243f3c..94f636a2b 100644
--- a/proto/spaceone/api/identity/v2/app.proto
+++ b/proto/spaceone/api/identity/v2/app.proto
@@ -84,11 +84,11 @@ message CreateAppRequest {
 
     string name = 1;
     string role_id = 2;
-    Scope scope = 3;
     // +optional
-    google.protobuf.Struct tags = 4;
+    google.protobuf.Struct tags = 3;
     // +optional
-    string expired_at = 5;
+    string expired_at = 4;
+    Scope scope = 5;
     string domain_id = 21;
     // +optional
     string workspace_id = 22;
@@ -119,12 +119,29 @@ message AppInfo {
         DISABLED = 2;
     }
 
+    enum RoleType {
+        ROLE_TYPE_NONE = 0;
+        SYSTEM_ADMIN = 1;
+        DOMAIN_ADMIN = 2;
+        WORKSPACE_OWNER = 3;
+        WORKSPACE_MEMBER = 4;
+        NO_ROLE = 5;
+    }
+
+    enum Scope {
+        NONE_SCOPE = 0;
+        DOMAIN = 1;
+        WORKSPACE = 2;
+    }
+
     string app_id = 1;
     string api_key = 2;
     string name = 3;
     State state = 4;
+    RoleType role_type = 5;
+    Scope scope = 6;
     string domain_id = 21;
-    string user_id = 22;
+    string workspace_id = 22;
     string role_id = 23;
     string api_key_id = 24;
     string created_at = 31;
@@ -139,6 +156,15 @@ message AppSearchQuery {
         DISABLED = 2;
     }
 
+    enum RoleType {
+        ROLE_TYPE_NONE = 0;
+        SYSTEM_ADMIN = 1;
+        DOMAIN_ADMIN = 2;
+        WORKSPACE_OWNER = 3;
+        WORKSPACE_MEMBER = 4;
+        NO_ROLE = 5;
+    }
+
     enum Scope {
         NONE_SCOPE = 0;
         DOMAIN = 1;
@@ -150,20 +176,20 @@ message AppSearchQuery {
     // +optional
     string app_id = 2;
     // +optional
-    string app_key = 3;
-    // +optional
-    string name = 4;
+    string name = 3;
     // +optional
-    State state = 5;
+    State state = 4;
     // +optional
-    Scope scope = 6;
+    Scope scope = 5;
     // +optional
-    string role_type = 7;
+    RoleType role_type = 6;
     string domain_id = 21;
     // +optional
     string workspace_id = 22;
     // +optional
     string role_id = 23;
+    // +optional
+    string api_key_id = 24;
 }
 
 message AppsInfo {
@@ -172,27 +198,8 @@ message AppsInfo {
 }
 
 message AppStatQuery {
-    enum State {
-        NONE_STATE = 0;
-        ENABLED = 1;
-        DISABLED = 2;
-    }
-
-    enum Scope {
-        NONE_SCOPE = 0;
-        DOMAIN = 1;
-        WORKSPACE = 2;
-    }
-
     spaceone.api.core.v1.StatisticsQuery query = 1;
-    string app_key = 2;
-    string name = 3;
-    State state = 4;
-    Scope scope = 5;
-    string role_type = 6;
     string domain_id = 21;
+    // +optional
     string workspace_id = 22;
-    string app_id = 23;
-    string role_id = 24;
-
 }
\ No newline at end of file
diff --git a/proto/spaceone/api/identity/v2/project.proto b/proto/spaceone/api/identity/v2/project.proto
index b31e2d396..e1cb6330c 100644
--- a/proto/spaceone/api/identity/v2/project.proto
+++ b/proto/spaceone/api/identity/v2/project.proto
@@ -95,21 +95,21 @@ service Project {
     }
 }
 
-message CreateProjectRequest {
-    enum ProjectType {
-        None = 0;
-        PRIVATE = 1;
-        PUBLIC = 2;
-    }
+enum ProjectType {
+    PROJECT_TYPE_NONE = 0;
+    PRIVATE = 1;
+    PUBLIC = 2;
+}
 
+message CreateProjectRequest {
     string name = 1;
     ProjectType project_type  = 2;
     // +optional
-    google.protobuf.Struct tags = 4;
+    google.protobuf.Struct tags = 3;
+    // +optional
+    string project_group_id = 4;
     string domain_id = 21;
     string workspace_id = 22;
-    // +optional
-    string project_group_id = 23;
 }
 
 message UpdateProjectRequest {
@@ -123,18 +123,12 @@ message UpdateProjectRequest {
 }
 
 message UpdateProjectTypeRequest {
-    enum ProjectType {
-        None = 0;
-        PRIVATE = 1;
-        PUBLIC = 2;
-    }
     string project_id = 1;
     ProjectType project_type  = 2;
     string domain_id = 21;
     string workspace_id = 22;
 }
 
-
 message ChangeProjectGroupRequest {
     string project_id = 1;
     string project_group_id = 2;
@@ -169,6 +163,8 @@ message ProjectSearchQuery {
     string project_id = 2;
     // +optional
     string name = 3;
+    // +optional
+    ProjectType project_type = 4;
     string domain_id = 21;
     // +optional
     string workspace_id = 22;
@@ -181,12 +177,6 @@ message ProjectSearchQuery {
 }
 
 message ProjectInfo {
-    enum ProjectType {
-        None = 0;
-        PRIVATE = 1;
-        PUBLIC = 2;
-    }
-
     string project_id = 1;
     string name = 2;
     ProjectType project_type = 3;
diff --git a/proto/spaceone/api/identity/v2/provider.proto b/proto/spaceone/api/identity/v2/provider.proto
index 00dbd3007..cf3002a6f 100644
--- a/proto/spaceone/api/identity/v2/provider.proto
+++ b/proto/spaceone/api/identity/v2/provider.proto
@@ -52,14 +52,17 @@ message CreateProviderRequest {
     string provider = 1;
     string name = 2;
     // +optional
-    int32 order = 3;
-    google.protobuf.Struct template = 4;
+    string alias = 3;
     // +optional
-    google.protobuf.Struct metadata = 5;
+    string color = 4;
     // +optional
-    google.protobuf.Struct capability = 6;
+    string icon = 5;
     // +optional
-    google.protobuf.Struct tags = 7;
+    int32 order = 6;
+    // +optional
+    google.protobuf.Struct options = 7;
+    // +optional
+    google.protobuf.Struct tags = 8;
     string domain_id = 21;
 }
 
@@ -68,15 +71,17 @@ message UpdateProviderRequest {
     // +optional
     string name = 2;
     // +optional
-    int32 order = 3;
+    string alias = 3;
+    // +optional
+    string color = 4;
     // +optional
-    google.protobuf.Struct template = 4;
+    string icon = 5;
     // +optional
-    google.protobuf.Struct metadata = 5;
+    int32 order = 6;
     // +optional
-    google.protobuf.Struct capability = 6;
+    google.protobuf.Struct options = 7;
     // +optional
-    google.protobuf.Struct tags = 7;
+    google.protobuf.Struct tags = 8;
     string domain_id = 21;
 }
 
@@ -92,19 +97,26 @@ message ProviderSearchQuery {
     string provider = 2;
     // +optional
     string name = 3;
+    // +optional
+    string alias = 4;
+    // +optional
+    bool is_managed = 5;
     string domain_id = 21;
 }
 
 message ProviderInfo {
     string provider = 1;
     string name = 2;
-    int32 order = 3;
-    google.protobuf.Struct template = 4;
-    google.protobuf.Struct metadata = 5;
-    google.protobuf.Struct capability = 6;
-    google.protobuf.Struct tags = 7;
+    string alias = 3;
+    string color = 4;
+    string icon = 5;
+    int32 order = 6;
+    google.protobuf.Struct options = 7;
+    google.protobuf.Struct tags = 8;
+    bool is_managed = 9;
     string domain_id = 21;
     string created_at = 31;
+    string updated_at = 32;
 }
 
 message ProvidersInfo {
diff --git a/proto/spaceone/api/identity/v2/schema.proto b/proto/spaceone/api/identity/v2/schema.proto
new file mode 100644
index 000000000..2d852b24d
--- /dev/null
+++ b/proto/spaceone/api/identity/v2/schema.proto
@@ -0,0 +1,133 @@
+syntax = "proto3";
+
+package spaceone.api.identity.v2;
+
+option go_package = "github.com/cloudforet-io/api/dist/go/spaceone/api/identity/v2";
+
+import "google/protobuf/empty.proto";
+import "google/protobuf/struct.proto";
+import "google/api/annotations.proto";
+import "spaceone/api/core/v1/query.proto";
+
+service Schema {
+    rpc create (CreateSchemaRequest) returns (SchemaInfo) {
+        option (google.api.http) = {
+            post: "/identity/v2/schema/create"
+            body: "*"
+        };
+    }
+    rpc update (UpdateSchemaRequest) returns (SchemaInfo) {
+        option (google.api.http) = {
+            post: "/identity/v2/schema/update"
+            body: "*"
+        };
+    }
+    rpc delete (SchemaRequest) returns (google.protobuf.Empty) {
+        option (google.api.http) = {
+            post: "/identity/v2/schema/delete"
+            body: "*"
+        };
+    }
+    rpc get (SchemaRequest) returns (SchemaInfo) {
+        option (google.api.http) = {
+            post: "/identity/v2/schema/get"
+            body: "*"
+        };
+    }
+    rpc list (SchemaSearchQuery) returns (SchemasInfo) {
+        option (google.api.http) = {
+            post: "/identity/v2/schema/list"
+            body: "*"
+        };
+    }
+    rpc stat (SchemaStatQuery) returns (google.protobuf.Struct) {
+        option (google.api.http) = {
+            post: "/identity/v2/schema/stat"
+            body: "*"
+        };
+    }
+}
+
+enum SchemaType {
+    SCHEMA_TYPE_NONE = 0;
+    SERVICE_ACCOUNT = 1;
+    TRUSTED_ACCOUNT = 2;
+    SECRET = 3;
+    TRUSTING_SECRET = 4;
+}
+
+message CreateSchemaRequest {
+    string schema_id = 1;
+    string name = 2;
+    SchemaType schema_type = 3;
+    google.protobuf.Struct schema = 4;
+    string provider = 5;
+    // +optional
+    repeated string related_schemas = 6;
+    // +optional
+    google.protobuf.Struct options = 7;
+    // +optional
+    google.protobuf.Struct tags = 8;
+    string domain_id = 21;
+}
+
+message UpdateSchemaRequest {
+    string schema_id = 1;
+    // +optional
+    string name = 2;
+    // +optional
+    google.protobuf.Struct schema = 3;
+    // +optional
+    google.protobuf.Struct options = 4;
+    // +optional
+    google.protobuf.Struct tags = 5;
+    string domain_id = 21;
+}
+
+message SchemaRequest {
+    string schema_id = 1;
+    string domain_id = 21;
+}
+
+message SchemaSearchQuery {
+    // +optional
+    spaceone.api.core.v1.Query query = 1;
+    // +optional
+    string schema_id = 2;
+    // +optional
+    string name = 3;
+    // +optional
+    SchemaType schema_type = 4;
+    // +optional
+    string provider = 5;
+    // +optional
+    string related_schema_id = 6;
+    // +optional
+    bool is_managed = 7;
+    string domain_id = 21;
+}
+
+message SchemaInfo {
+    string schema_id = 1;
+    string name = 2;
+    SchemaType schema_type = 3;
+    google.protobuf.Struct schema = 4;
+    string provider = 5;
+    repeated string related_schemas = 6;
+    google.protobuf.Struct options = 7;
+    google.protobuf.Struct tags = 8;
+    bool is_managed = 9;
+    string domain_id = 21;
+    string created_at = 31;
+    string updated_at = 32;
+}
+
+message SchemasInfo {
+    repeated SchemaInfo results = 1;
+    int32 total_count = 2;
+}
+
+message SchemaStatQuery {
+    spaceone.api.core.v1.StatisticsQuery query = 1;
+    string domain_id = 21;
+}
\ No newline at end of file
diff --git a/proto/spaceone/api/identity/v2/service_account.proto b/proto/spaceone/api/identity/v2/service_account.proto
index 820cca6d4..3e9103647 100644
--- a/proto/spaceone/api/identity/v2/service_account.proto
+++ b/proto/spaceone/api/identity/v2/service_account.proto
@@ -24,9 +24,9 @@ service ServiceAccount {
         };
     }
 
-    rpc change_trusted_service_account (ChangeTrustedAccountRequest) returns (ServiceAccountInfo) {
+    rpc change_trusted_account (ChangeTrustedAccountRequest) returns (ServiceAccountInfo) {
         option (google.api.http) = {
-            post: "/identity/v2/service-account/change-trusted-service-account"
+            post: "/identity/v2/service-account/change-trusted-account"
             body: "*"
         };
     }
@@ -35,7 +35,7 @@ service ServiceAccount {
         option (google.api.http) = {
             post: "/identity/v2/service-account/delete"
             body: "*"
-        };
+        };`
     }
 
     rpc get (ServiceAccountRequest) returns (ServiceAccountInfo) {
@@ -68,8 +68,8 @@ message CreateServiceAccountRequest {
     string domain_id = 21;
     string workspace_id = 22;
     string project_id = 23;
-    // +optional
-    string trusted_service_account_id = 24;
+    // +optional`
+    string trusted_account_id = 24;
 }
 
 message UpdateServiceAccountRequest {
@@ -88,7 +88,7 @@ message UpdateServiceAccountRequest {
 
 message ChangeTrustedAccountRequest {
     string service_account_id = 1;
-    string trusted_service_account_id = 2;
+    string trusted_account_id = 2;
     string domain_id = 21;
     string workspace_id = 22;
 }
@@ -116,7 +116,7 @@ message ServiceAccountSearchQuery {
     // +optional
     string project_id = 23;
     // +optional
-    string trusted_service_account_id = 24;
+    string trusted_account_id = 24;
 }
 
 message ServiceAccountInfo {
@@ -128,7 +128,7 @@ message ServiceAccountInfo {
     string domain_id = 21;
     string workspace_id = 22;
     string project_id = 23;
-    string trusted_service_account_id = 24;
+    string trusted_account_id = 24;
     string created_at = 31;
 }
 
diff --git a/proto/spaceone/api/identity/v2/trusted_service_account.proto b/proto/spaceone/api/identity/v2/trusted_account.proto
similarity index 71%
rename from proto/spaceone/api/identity/v2/trusted_service_account.proto
rename to proto/spaceone/api/identity/v2/trusted_account.proto
index f5d015783..76c26cbb3 100644
--- a/proto/spaceone/api/identity/v2/trusted_service_account.proto
+++ b/proto/spaceone/api/identity/v2/trusted_account.proto
@@ -9,38 +9,38 @@ import "google/protobuf/struct.proto";
 import "google/api/annotations.proto";
 import "spaceone/api/core/v1/query.proto";
 
-service TrustedServiceAccount {
-    rpc create (CreateTrustedServiceAccountRequest) returns (TrustedServiceAccountInfo) {
+service TrustedAccount {
+    rpc create (CreateTrustedAccountRequest) returns (TrustedAccountInfo) {
         option (google.api.http) = {
             post: "/identity/v2/trusted-account/create"
             body: "*"
         };
     }
-    rpc update (UpdateTrustedServiceAccountRequest) returns (TrustedServiceAccountInfo) {
+    rpc update (UpdateTrustedAccountRequest) returns (TrustedAccountInfo) {
         option (google.api.http) = {
             post: "/identity/v2/trusted-account/update"
             body: "*"
         };
     }
-    rpc delete (TrustedServiceAccountRequest) returns (google.protobuf.Empty) {
+    rpc delete (TrustedAccountRequest) returns (google.protobuf.Empty) {
         option (google.api.http) = {
             post: "/identity/v2/trusted-account/delete"
             body: "*"
         };
     }
-    rpc get (TrustedServiceAccountRequest) returns (TrustedServiceAccountInfo) {
+    rpc get (TrustedAccountRequest) returns (TrustedAccountInfo) {
         option (google.api.http) = {
             post: "/identity/v2/trusted-account/get"
             body: "*"
         };
     }
-    rpc list (TrustedServiceAccountSearchQuery) returns (TrustedServiceAccountsInfo) {
+    rpc list (TrustedAccountSearchQuery) returns (TrustedAccountsInfo) {
         option (google.api.http) = {
             post: "/identity/v2/trusted-account/list"
             body: "*"
         };
     }
-    rpc stat (TrustedServiceAccountStatQuery) returns (google.protobuf.Struct) {
+    rpc stat (TrustedAccountStatQuery) returns (google.protobuf.Struct) {
         option (google.api.http) = {
             post: "/identity/v2/trusted-account/stat"
             body: "*"
@@ -48,7 +48,7 @@ service TrustedServiceAccount {
     }
 }
 
-message CreateTrustedServiceAccountRequest {
+message CreateTrustedAccountRequest {
     enum Scope {
         NONE = 0;
         DOMAIN = 1;
@@ -66,8 +66,8 @@ message CreateTrustedServiceAccountRequest {
     string workspace_id = 22;
 }
 
-message UpdateTrustedServiceAccountRequest {
-    string trusted_service_account_id = 1;
+message UpdateTrustedAccountRequest {
+    string trusted_account_id = 1;
     // +optional
     string name = 2;
     // +optional
@@ -79,14 +79,14 @@ message UpdateTrustedServiceAccountRequest {
     string workspace_id = 22;
 }
 
-message TrustedServiceAccountRequest {
-    string trusted_service_account_id = 1;
+message TrustedAccountRequest {
+    string trusted_account_id = 1;
     string domain_id = 21;
     // +optional
     string workspace_id = 22;
 }
 
-message TrustedServiceAccountSearchQuery {
+message TrustedAccountSearchQuery {
     enum Scope {
         NONE = 0;
         DOMAIN = 1;
@@ -96,7 +96,7 @@ message TrustedServiceAccountSearchQuery {
     // +optional
     spaceone.api.core.v1.Query query = 1;
     // +optional
-    string trusted_service_account_id = 2;
+    string trusted_account_id = 2;
     // +optional
     string name = 3;
     // +optional
@@ -108,14 +108,14 @@ message TrustedServiceAccountSearchQuery {
     string workspace_id = 22;
 }
 
-message TrustedServiceAccountInfo {
+message TrustedAccountInfo {
     enum Scope {
         NONE = 0;
         DOMAIN = 1;
         WORKSPACE = 2;
     }
 
-    string trusted_service_account_id = 1;
+    string trusted_account_id = 1;
     string name = 2;
     google.protobuf.Struct data = 3;
     string provider = 4;
@@ -126,12 +126,12 @@ message TrustedServiceAccountInfo {
     string created_at = 31;
 }
 
-message TrustedServiceAccountsInfo {
-    repeated TrustedServiceAccountInfo results = 1;
+message TrustedAccountsInfo {
+    repeated TrustedAccountInfo results = 1;
     int32 total_count = 2;
 }
 
-message TrustedServiceAccountStatQuery {
+message TrustedAccountStatQuery {
     spaceone.api.core.v1.StatisticsQuery query = 1;
     string domain_id = 21;
     // +optional
diff --git a/proto/spaceone/api/identity/v2/user.proto b/proto/spaceone/api/identity/v2/user.proto
index b67efaa4e..049ce84ae 100644
--- a/proto/spaceone/api/identity/v2/user.proto
+++ b/proto/spaceone/api/identity/v2/user.proto
@@ -135,8 +135,7 @@ enum UserRequiredAction {
 
 
 message MFA {
-    enum State
-    {
+    enum State {
         NONE = 0;
         ENABLED = 1;
         DISABLED = 2;
@@ -158,8 +157,7 @@ message UserRoleBinding {
 
     string user_id = 1;
     string role_id = 2;
-    bool is_managed_role = 3;
-    Scope scope = 4;
+    Scope scope = 3;
     // +optional
     string workspace_id = 22;
 }
@@ -198,7 +196,6 @@ message UpdateUserRequest {
     // +optional
     string email = 4;
     // +optional
-    // +optional
     string language = 5;
     // +optional
     string timezone = 6;
@@ -291,8 +288,8 @@ message UserSearchQuery {
     string email = 5;
     // +optional
     AuthType auth_type = 6;
-    // +optional
     string domain_id = 21;
+    // +optional
     string workspace_id = 22;
 }
 
diff --git a/proto/spaceone/api/identity/v2/user_group.proto b/proto/spaceone/api/identity/v2/user_group.proto
index 5d5f3641e..9d1a4f3af 100644
--- a/proto/spaceone/api/identity/v2/user_group.proto
+++ b/proto/spaceone/api/identity/v2/user_group.proto
@@ -1,5 +1,3 @@
-// User API which allows member management within project, company, and domain
-// note: Administrator must register User first.
 syntax = "proto3";
 
 package spaceone.api.identity.v2;