| ApiAccessTokensController | Working with API access tokens. |
| ApplicationsController | Download apps in Tessa Applications (desktop client). |
| ApprovalProcessController | Working with approval processes. |
| CardsController | Working with cards. |
| CardTypesController | Working with types CardType: types of cards Card, types of files File, types of tasks Task, and types of dialogs Dialog. |
| CheckController | Check web service status and get its configuration and environment info. Works if flag HealthCheckIsEnabled in server's configuration is set true. |
| CheckRedisController | Gets Redis connection string from the configuration. Works if flag HealthCheckIsEnabled in server's configuration is set true. |
| ContentController | Working with content by link. |
| DashboardsController | Working with dashboards. |
| InitializationController | Get initialization info for current application, used on its startup. |
| LocalizationController | Working with localization. |
| LocalizationV1Controller | Get localization info for legacy .NET clients. Use for compatibility with legacy Tessa Applications app of version between 3.6 and 4.0. |
| MailController | SaaS controller for sending email notifications. |
| OperationsController | Create, get, modify and delete operations. |
| SchemeController | Working with scheme (database structure). |
| SearchQueriesController | Working with search queries. |
| SessionsController | Working with sessions. Open session methods doesn't require authentication via HTTP header or otherwise. |
| SessionsLegacy3XController | Working with sessions. Open session methods doesn't require authentication via HTTP header or otherwise. Use for compatibility with legacy Tessa Applications app of version less than 4.0. |
| TokensController | Working with tokens. |
| TwoFactorAuthController | Controller with methods for two-factor authentication. Methods doesn't require authentication via HTTP header or otherwise. |
| UserInfoController | Provides endpoints for retrieving information about user(s). |
| ViewsController | Working with views. |
| WidgetTemplatesController | Working with widget templates. |
| WorkplacesController | Working with workplaces. |