diff --git a/src/Microsoft.OpenApi/Services/OpenApiReferenceResolver.cs b/src/Microsoft.OpenApi/Services/OpenApiReferenceResolver.cs
index 840f9c660..feeceb9af 100644
--- a/src/Microsoft.OpenApi/Services/OpenApiReferenceResolver.cs
+++ b/src/Microsoft.OpenApi/Services/OpenApiReferenceResolver.cs
@@ -7,33 +7,36 @@
 using Microsoft.OpenApi.Exceptions;
 using Microsoft.OpenApi.Interfaces;
 using Microsoft.OpenApi.Models;
-using Microsoft.OpenApi.Services;
 
 namespace Microsoft.OpenApi.Services
 {
     /// <summary>
     /// This class is used to walk an OpenApiDocument and convert unresolved references to references to populated objects
     /// </summary>
-    internal class OpenApiReferenceResolver : OpenApiVisitorBase
+    public class OpenApiReferenceResolver : OpenApiVisitorBase
     {
         private OpenApiDocument _currentDocument;
-        private bool _resolveRemoteReferences;
+        private readonly bool _resolveRemoteReferences;
         private List<OpenApiError> _errors = new List<OpenApiError>();
 
+        /// <summary>
+        /// Initializes the <see cref="OpenApiReferenceResolver"/> class.
+        /// </summary>
         public OpenApiReferenceResolver(OpenApiDocument currentDocument, bool resolveRemoteReferences = true)
         {
             _currentDocument = currentDocument;
             _resolveRemoteReferences = resolveRemoteReferences;
         }
 
-        public IEnumerable<OpenApiError> Errors
-        {
-            get
-            {
-                return _errors;
-            }
-        }
+        /// <summary>
+        /// List of errors related to the OpenApiDocument
+        /// </summary>
+        public IEnumerable<OpenApiError> Errors => _errors;
 
+        /// <summary>
+        /// Resolves tags in OpenApiDocument
+        /// </summary>
+        /// <param name="doc"></param>
         public override void Visit(OpenApiDocument doc)
         {
             if (doc.Tags != null)
@@ -42,6 +45,10 @@ public override void Visit(OpenApiDocument doc)
             }
         }
 
+        /// <summary>
+        /// Visits the referenceable element in the host document
+        /// </summary>
+        /// <param name="referenceable">The referenceable element in the doc.</param>
         public override void Visit(IOpenApiReferenceable referenceable)
         {
             if (referenceable.Reference != null)
@@ -49,6 +56,11 @@ public override void Visit(IOpenApiReferenceable referenceable)
                 referenceable.Reference.HostDocument = _currentDocument;
             }
         }
+
+        /// <summary>
+        /// Resolves references in components
+        /// </summary>
+        /// <param name="components"></param>
         public override void Visit(OpenApiComponents components)
         {
             ResolveMap(components.Parameters);
@@ -62,6 +74,10 @@ public override void Visit(OpenApiComponents components)
             ResolveMap(components.Headers);
         }
 
+        /// <summary>
+        /// Resolves all references used in callbacks
+        /// </summary>
+        /// <param name="callbacks"></param>
         public override void Visit(IDictionary<string, OpenApiCallback> callbacks)
         {
             ResolveMap(callbacks);
diff --git a/test/Microsoft.OpenApi.Tests/PublicApi/PublicApi.approved.txt b/test/Microsoft.OpenApi.Tests/PublicApi/PublicApi.approved.txt
index 15bc8562b..75e12f480 100755
--- a/test/Microsoft.OpenApi.Tests/PublicApi/PublicApi.approved.txt
+++ b/test/Microsoft.OpenApi.Tests/PublicApi/PublicApi.approved.txt
@@ -1067,6 +1067,25 @@ namespace Microsoft.OpenApi.Services
         public OpenApiReferenceError(Microsoft.OpenApi.Exceptions.OpenApiException exception) { }
         public OpenApiReferenceError(Microsoft.OpenApi.Models.OpenApiReference reference, string message) { }
     }
+    public class OpenApiReferenceResolver : Microsoft.OpenApi.Services.OpenApiVisitorBase
+    {
+        public OpenApiReferenceResolver(Microsoft.OpenApi.Models.OpenApiDocument currentDocument, bool resolveRemoteReferences = true) { }
+        public System.Collections.Generic.IEnumerable<Microsoft.OpenApi.Models.OpenApiError> Errors { get; }
+        public override void Visit(Microsoft.OpenApi.Interfaces.IOpenApiReferenceable referenceable) { }
+        public override void Visit(Microsoft.OpenApi.Models.OpenApiComponents components) { }
+        public override void Visit(Microsoft.OpenApi.Models.OpenApiDocument doc) { }
+        public override void Visit(Microsoft.OpenApi.Models.OpenApiMediaType mediaType) { }
+        public override void Visit(Microsoft.OpenApi.Models.OpenApiOperation operation) { }
+        public override void Visit(Microsoft.OpenApi.Models.OpenApiParameter parameter) { }
+        public override void Visit(Microsoft.OpenApi.Models.OpenApiResponses responses) { }
+        public override void Visit(Microsoft.OpenApi.Models.OpenApiSchema schema) { }
+        public override void Visit(Microsoft.OpenApi.Models.OpenApiSecurityRequirement securityRequirement) { }
+        public override void Visit(System.Collections.Generic.IDictionary<string, Microsoft.OpenApi.Models.OpenApiCallback> callbacks) { }
+        public override void Visit(System.Collections.Generic.IDictionary<string, Microsoft.OpenApi.Models.OpenApiExample> examples) { }
+        public override void Visit(System.Collections.Generic.IDictionary<string, Microsoft.OpenApi.Models.OpenApiHeader> headers) { }
+        public override void Visit(System.Collections.Generic.IDictionary<string, Microsoft.OpenApi.Models.OpenApiLink> links) { }
+        public override void Visit(System.Collections.Generic.IList<Microsoft.OpenApi.Models.OpenApiParameter> parameters) { }
+    }
     public class OpenApiUrlTreeNode
     {
         public System.Collections.Generic.IDictionary<string, System.Collections.Generic.List<string>> AdditionalData { get; set; }