diff --git a/SchengenVisaApi/ApplicationLayer/Services/VisaApplications/Models/PastVisitModel.cs b/SchengenVisaApi/ApplicationLayer/Services/VisaApplications/Models/PastVisitModel.cs
index 55d7010..c492e57 100644
--- a/SchengenVisaApi/ApplicationLayer/Services/VisaApplications/Models/PastVisitModel.cs
+++ b/SchengenVisaApi/ApplicationLayer/Services/VisaApplications/Models/PastVisitModel.cs
@@ -1,5 +1,4 @@
-using Domains.LocationDomain;
-using Domains.VisaApplicationDomain;
+using Domains.VisaApplicationDomain;
 
 namespace ApplicationLayer.Services.VisaApplications.Models
 {
diff --git a/SchengenVisaApi/ApplicationLayer/Services/VisaApplications/Models/VisaApplicationModelForApplicant.cs b/SchengenVisaApi/ApplicationLayer/Services/VisaApplications/Models/VisaApplicationModelForApplicant.cs
index f1f85e2..c347147 100644
--- a/SchengenVisaApi/ApplicationLayer/Services/VisaApplications/Models/VisaApplicationModelForApplicant.cs
+++ b/SchengenVisaApi/ApplicationLayer/Services/VisaApplications/Models/VisaApplicationModelForApplicant.cs
@@ -1,6 +1,4 @@
-using Domains.ApplicantDomain;
-using Domains.LocationDomain;
-using Domains.VisaApplicationDomain;
+using Domains.VisaApplicationDomain;
 
 namespace ApplicationLayer.Services.VisaApplications.Models
 {
diff --git a/SchengenVisaApi/SchengenVisaApi/Common/ConfigureSwaggerOptions.cs b/SchengenVisaApi/SchengenVisaApi/Common/ConfigureSwaggerOptions.cs
index 51aa125..fbfefec 100644
--- a/SchengenVisaApi/SchengenVisaApi/Common/ConfigureSwaggerOptions.cs
+++ b/SchengenVisaApi/SchengenVisaApi/Common/ConfigureSwaggerOptions.cs
@@ -4,6 +4,7 @@ using Swashbuckle.AspNetCore.SwaggerGen;
 
 namespace SchengenVisaApi.Common
 {
+    /// Adds auth for swagger
     public class ConfigureSwaggerOptions : IConfigureOptions<SwaggerGenOptions>
     {
         void IConfigureOptions<SwaggerGenOptions>.Configure(SwaggerGenOptions options)
diff --git a/SchengenVisaApi/SchengenVisaApi/Common/PolicyConstants.cs b/SchengenVisaApi/SchengenVisaApi/Common/PolicyConstants.cs
index 073a2ed..111b5bc 100644
--- a/SchengenVisaApi/SchengenVisaApi/Common/PolicyConstants.cs
+++ b/SchengenVisaApi/SchengenVisaApi/Common/PolicyConstants.cs
@@ -1,12 +1,12 @@
 namespace SchengenVisaApi.Common
 {
-#pragma warning enable CS1591
+#pragma warning disable CS1591
     public static class PolicyConstants
     {
         public const string AdminPolicy = "AdminPolicy";
         public const string ApplicantPolicy = "ApplicantPolicy";
         public const string ApprovingAuthorityPolicy = "ApprovingAuthorityPolicy";
     }
-#pragma warning disable CS1591
+#pragma warning enable CS1591
 
 }
diff --git a/SchengenVisaApi/SchengenVisaApi/Controllers/LocationsController.cs b/SchengenVisaApi/SchengenVisaApi/Controllers/LocationsController.cs
index 494faa4..da54637 100644
--- a/SchengenVisaApi/SchengenVisaApi/Controllers/LocationsController.cs
+++ b/SchengenVisaApi/SchengenVisaApi/Controllers/LocationsController.cs
@@ -1,28 +1,39 @@
 using ApplicationLayer.Services.Locations.RequestHandlers;
 using ApplicationLayer.Services.Locations.Requests;
+using Domains.LocationDomain;
+using Domains.Users;
 using Microsoft.AspNetCore.Authorization;
 using Microsoft.AspNetCore.Mvc;
 using SchengenVisaApi.Common;
 
 namespace SchengenVisaApi.Controllers
 {
+    /// Controller for <see cref="Domains.LocationDomain"/>
     [ApiController]
     [Route("countries")]
     public class LocationsController(ILocationRequestsHandler requestsHandler) : ControllerBase
     {
+        /// Return countries with cities from DB
         [HttpGet]
+        [ProducesResponseType<List<Country>>(StatusCodes.Status200OK)]
         public async Task<IActionResult> GetAvailableLocations(CancellationToken cancellationToken)
         {
             return Ok(await requestsHandler.HandleGetRequestAsync(cancellationToken));
         }
 
+        /// Adds country with cities to DB
+        /// <remarks>Accessible only for <see cref="Role.Admin"/></remarks>
         [HttpPost]
+        [ProducesResponseType(StatusCodes.Status201Created)]
+        [ProducesResponseType(StatusCodes.Status400BadRequest)]
+        [ProducesResponseType(StatusCodes.Status403Forbidden)]
+        [ProducesResponseType(StatusCodes.Status401Unauthorized)]
         [Route("country")]
         [Authorize(policy: PolicyConstants.AdminPolicy)]
         public async Task<IActionResult> AddCountry(AddCountryRequest request, CancellationToken cancellationToken)
         {
             await requestsHandler.AddCountryAsync(request, cancellationToken);
-            return Ok();
+            return Created();
         }
     }
 }
diff --git a/SchengenVisaApi/SchengenVisaApi/Controllers/UsersController.cs b/SchengenVisaApi/SchengenVisaApi/Controllers/UsersController.cs
index e3395e4..217ea54 100644
--- a/SchengenVisaApi/SchengenVisaApi/Controllers/UsersController.cs
+++ b/SchengenVisaApi/SchengenVisaApi/Controllers/UsersController.cs
@@ -1,17 +1,22 @@
 using ApplicationLayer.Services.AuthServices.LoginService;
 using ApplicationLayer.Services.AuthServices.RegisterService;
 using ApplicationLayer.Services.AuthServices.Requests;
+using Domains.Users;
 using Microsoft.AspNetCore.Authorization;
 using Microsoft.AspNetCore.Mvc;
 using SchengenVisaApi.Common;
 
 namespace SchengenVisaApi.Controllers
 {
+    /// Controller for <see cref="Domains.Users"/>
     [ApiController]
     [Route("auth")]
     public class UsersController(IRegisterService registerService, ILoginService loginService) : ControllerBase
     {
+        /// Adds applicant with user account to DB
         [HttpPost]
+        [ProducesResponseType(StatusCodes.Status201Created)]
+        [ProducesResponseType(StatusCodes.Status409Conflict)]
         [Route("applicant")]
         public async Task<IActionResult> Register(RegisterApplicantRequest request, CancellationToken cancellationToken)
         {
@@ -19,16 +24,25 @@ namespace SchengenVisaApi.Controllers
             return Created();
         }
 
+        /// Adds approving authority with user account to DB
+        /// <remarks>Accessible only for <see cref="Role.Admin"/></remarks>
         [HttpPost]
-        [Authorize(policy: PolicyConstants.AdminPolicy)]
+        [ProducesResponseType(StatusCodes.Status201Created)]
+        [ProducesResponseType(StatusCodes.Status409Conflict)]
+        [ProducesResponseType(StatusCodes.Status403Forbidden)]
+        [ProducesResponseType(StatusCodes.Status401Unauthorized)]
         [Route("authority")]
+        [Authorize(policy: PolicyConstants.AdminPolicy)]
         public async Task<IActionResult> RegisterAuthority(RegisterRequest request, CancellationToken cancellationToken)
         {
             await registerService.RegisterAuthority(request, cancellationToken);
             return Created();
         }
 
+        /// Returns JWT-token for authentication
         [HttpGet]
+        [ProducesResponseType<string>(StatusCodes.Status200OK)]
+        [ProducesResponseType(StatusCodes.Status403Forbidden)]
         public async Task<IActionResult> Login(string email, string password, CancellationToken cancellationToken)
         {
             var result = await loginService.LoginAsync(new UserLoginRequest(email, password), cancellationToken);
diff --git a/SchengenVisaApi/SchengenVisaApi/Controllers/VisaApplicationController.cs b/SchengenVisaApi/SchengenVisaApi/Controllers/VisaApplicationController.cs
index 1bab610..31ac32a 100644
--- a/SchengenVisaApi/SchengenVisaApi/Controllers/VisaApplicationController.cs
+++ b/SchengenVisaApi/SchengenVisaApi/Controllers/VisaApplicationController.cs
@@ -1,17 +1,27 @@
 using System.Security.Claims;
 using ApplicationLayer.Services.VisaApplications.Handlers;
+using ApplicationLayer.Services.VisaApplications.Models;
 using ApplicationLayer.Services.VisaApplications.Requests;
+using Domains.Users;
+using Domains.VisaApplicationDomain;
 using Microsoft.AspNetCore.Authorization;
 using Microsoft.AspNetCore.Mvc;
 using SchengenVisaApi.Common;
 
 namespace SchengenVisaApi.Controllers;
 
+/// Controller for <see cref="Domains.VisaApplicationDomain"/>
 [ApiController]
 [Route("[controller]")]
 public class VisaApplicationController(IVisaApplicationRequestsHandler visaApplicationRequestsHandler) : ControllerBase
 {
+    //todo should return only pending applications
+    /// Returns all <see cref="Domains.VisaApplicationDomain.VisaApplication"/> from DB
+    /// <remarks>Accessible only for <see cref="Role.ApprovingAuthority"/></remarks>
     [HttpGet]
+    [ProducesResponseType<List<VisaApplication>>(StatusCodes.Status200OK)]
+    [ProducesResponseType(StatusCodes.Status403Forbidden)]
+    [ProducesResponseType(StatusCodes.Status401Unauthorized)]
     [Authorize(policy: PolicyConstants.ApprovingAuthorityPolicy)]
     public async Task<IActionResult> Get(CancellationToken cancellationToken)
     {
@@ -19,7 +29,13 @@ public class VisaApplicationController(IVisaApplicationRequestsHandler visaAppli
         return Ok(result);
     }
 
+    /// Returns all <see cref="VisaApplication"/> of one applicant
+    /// <remarks>Returns applications for authorized applicant</remarks>
     [HttpGet]
+    [ProducesResponseType<List<VisaApplicationModelForApplicant>>(StatusCodes.Status200OK)]
+    [ProducesResponseType(StatusCodes.Status403Forbidden)]
+    [ProducesResponseType(StatusCodes.Status401Unauthorized)]
+    [ProducesResponseType(StatusCodes.Status404NotFound)]
     [Authorize(policy: PolicyConstants.ApplicantPolicy)]
     [Route("OfApplicant")]
     public async Task<IActionResult> GetForApplicant(CancellationToken cancellationToken)
@@ -29,7 +45,13 @@ public class VisaApplicationController(IVisaApplicationRequestsHandler visaAppli
         return Ok(result);
     }
 
+    /// Adds new <see cref="VisaApplication"/> to DB
+    /// <remarks>Adds application for authorized applicant</remarks>
     [HttpPost]
+    [ProducesResponseType(StatusCodes.Status201Created)]
+    [ProducesResponseType(StatusCodes.Status403Forbidden)]
+    [ProducesResponseType(StatusCodes.Status401Unauthorized)]
+    [ProducesResponseType(StatusCodes.Status404NotFound)]
     [Authorize(policy: PolicyConstants.ApplicantPolicy)]
     public async Task<IActionResult> Create(VisaApplicationCreateRequest request, CancellationToken cancellationToken)
     {