diff --git a/docs/upgrade-guide-2.md b/docs/upgrade-guide-2.md
index f1fd6c23f..ebe3acb5b 100644
--- a/docs/upgrade-guide-2.md
+++ b/docs/upgrade-guide-2.md
@@ -203,7 +203,7 @@ var openApiObject = new OpenApiObject
     }
 };
 var parameter = new OpenApiParameter();
-parameter.Extensions.Add("x-foo", new OpenApiAny(openApiObject));
+parameter.Extensions.Add("x-foo", openApiObject);
 
 ```
 
@@ -223,7 +223,7 @@ var openApiObject = new JsonObject
     }
 };
 var parameter = new OpenApiParameter();
-parameter.Extensions.Add("x-foo", new OpenApiAny(openApiObject));
+parameter.Extensions.Add("x-foo", new JsonNodeExtension(openApiObject));
 
 ```
 
diff --git a/src/Microsoft.OpenApi.Hidi/Extensions/OpenApiExtensibleExtensions.cs b/src/Microsoft.OpenApi.Hidi/Extensions/OpenApiExtensibleExtensions.cs
index 368b67e8c..1287e704d 100644
--- a/src/Microsoft.OpenApi.Hidi/Extensions/OpenApiExtensibleExtensions.cs
+++ b/src/Microsoft.OpenApi.Hidi/Extensions/OpenApiExtensibleExtensions.cs
@@ -1,4 +1,4 @@
-using Microsoft.OpenApi.Any;
+using Microsoft.OpenApi.Extensions;
 using Microsoft.OpenApi.Interfaces;
 using System.Collections.Generic;
 using System.Text.Json.Nodes;
@@ -15,7 +15,7 @@ internal static class OpenApiExtensibleExtensions
         /// <returns>A <see cref="string"/> value matching the provided extensionKey. Return null when extensionKey is not found. </returns>
         internal static string GetExtension(this Dictionary<string, IOpenApiExtension> extensions, string extensionKey)
         {
-            if (extensions.TryGetValue(extensionKey, out var value) && value is OpenApiAny { Node: JsonValue castValue } && castValue.TryGetValue<string>(out var stringValue))
+            if (extensions.TryGetValue(extensionKey, out var value) && value is JsonNodeExtension { Node: JsonValue castValue } && castValue.TryGetValue<string>(out var stringValue))
             {
                 return stringValue;
             }
diff --git a/src/Microsoft.OpenApi/Any/OpenApiAny.cs b/src/Microsoft.OpenApi/Extensions/JsonNodeExtension.cs
similarity index 76%
rename from src/Microsoft.OpenApi/Any/OpenApiAny.cs
rename to src/Microsoft.OpenApi/Extensions/JsonNodeExtension.cs
index 54bddf326..d0598f592 100644
--- a/src/Microsoft.OpenApi/Any/OpenApiAny.cs
+++ b/src/Microsoft.OpenApi/Extensions/JsonNodeExtension.cs
@@ -5,20 +5,20 @@
 using Microsoft.OpenApi.Interfaces;
 using Microsoft.OpenApi.Writers;
 
-namespace Microsoft.OpenApi.Any
+namespace Microsoft.OpenApi.Extensions
 {
     /// <summary>
     /// A wrapper class for JsonNode
     /// </summary>
-    public class OpenApiAny : IOpenApiElement, IOpenApiExtension
+    public class JsonNodeExtension : IOpenApiElement, IOpenApiExtension
     {
         private readonly JsonNode jsonNode;
 
         /// <summary>
-        /// Initializes the <see cref="OpenApiAny"/> class.
+        /// Initializes the <see cref="JsonNodeExtension"/> class.
         /// </summary>
         /// <param name="jsonNode"></param>
-        public OpenApiAny(JsonNode jsonNode)
+        public JsonNodeExtension(JsonNode jsonNode)
         {
             this.jsonNode = jsonNode;
         }
@@ -29,7 +29,7 @@ public OpenApiAny(JsonNode jsonNode)
         public JsonNode Node { get { return jsonNode; } }
 
         /// <summary>
-        /// Writes out the OpenApiAny type.
+        /// Writes out the JsonNodeExtension type.
         /// </summary>
         /// <param name="writer"></param>
         /// <param name="specVersion"></param>
diff --git a/src/Microsoft.OpenApi/MicrosoftExtensions/OpenApiDeprecationExtension.cs b/src/Microsoft.OpenApi/MicrosoftExtensions/OpenApiDeprecationExtension.cs
index a61d93ce4..446751799 100644
--- a/src/Microsoft.OpenApi/MicrosoftExtensions/OpenApiDeprecationExtension.cs
+++ b/src/Microsoft.OpenApi/MicrosoftExtensions/OpenApiDeprecationExtension.cs
@@ -5,7 +5,6 @@
 
 using System;
 using Microsoft.OpenApi.Extensions;
-using Microsoft.OpenApi.Any;
 using Microsoft.OpenApi.Interfaces;
 using Microsoft.OpenApi.Writers;
 using System.Text.Json.Nodes;
@@ -103,7 +102,7 @@ jsonNode is not JsonValue jsonValue ||
         return null;
     }
     /// <summary>
-    /// Parses the <see cref="OpenApiAny"/> to <see cref="OpenApiDeprecationExtension"/>.
+    /// Parses the <see cref="JsonNodeExtension"/> to <see cref="OpenApiDeprecationExtension"/>.
     /// </summary>
     /// <param name="source">The source object.</param>
     /// <returns>The <see cref="OpenApiDeprecationExtension"/>.</returns>
diff --git a/src/Microsoft.OpenApi/MicrosoftExtensions/OpenApiPrimaryErrorMessageExtension.cs b/src/Microsoft.OpenApi/MicrosoftExtensions/OpenApiPrimaryErrorMessageExtension.cs
index aabcf0d26..96185ae60 100644
--- a/src/Microsoft.OpenApi/MicrosoftExtensions/OpenApiPrimaryErrorMessageExtension.cs
+++ b/src/Microsoft.OpenApi/MicrosoftExtensions/OpenApiPrimaryErrorMessageExtension.cs
@@ -5,7 +5,7 @@
 
 using System;
 using System.Text.Json.Nodes;
-using Microsoft.OpenApi.Any;
+using Microsoft.OpenApi.Extensions;
 using Microsoft.OpenApi.Interfaces;
 using Microsoft.OpenApi.Writers;
 
@@ -34,7 +34,7 @@ public void Write(IOpenApiWriter writer, OpenApiSpecVersion specVersion)
     public bool IsPrimaryErrorMessage { get; set; }
 
     /// <summary>
-    /// Parses the <see cref="OpenApiAny"/> to <see cref="OpenApiPrimaryErrorMessageExtension"/>.
+    /// Parses the <see cref="JsonNodeExtension"/> to <see cref="OpenApiPrimaryErrorMessageExtension"/>.
     /// </summary>
     /// <param name="source">The source object.</param>
     /// <returns>The <see cref="OpenApiPrimaryErrorMessageExtension"/>.</returns>
diff --git a/src/Microsoft.OpenApi/MicrosoftExtensions/OpenApiReservedParameterExtension.cs b/src/Microsoft.OpenApi/MicrosoftExtensions/OpenApiReservedParameterExtension.cs
index eb58c1e5c..2b3d22e42 100644
--- a/src/Microsoft.OpenApi/MicrosoftExtensions/OpenApiReservedParameterExtension.cs
+++ b/src/Microsoft.OpenApi/MicrosoftExtensions/OpenApiReservedParameterExtension.cs
@@ -5,7 +5,7 @@
 
 using System;
 using System.Text.Json.Nodes;
-using Microsoft.OpenApi.Any;
+using Microsoft.OpenApi.Extensions;
 using Microsoft.OpenApi.Interfaces;
 using Microsoft.OpenApi.Writers;
 
@@ -35,7 +35,7 @@ public bool? IsReserved
         get; set;
     }
     /// <summary>
-    /// Parses the <see cref="OpenApiAny"/> to <see cref="OpenApiReservedParameterExtension"/>.
+    /// Parses the <see cref="JsonNodeExtension"/> to <see cref="OpenApiReservedParameterExtension"/>.
     /// </summary>
     /// <param name="source">The source object.</param>
     /// <returns>The <see cref="OpenApiReservedParameterExtension"/>.</returns>
diff --git a/src/Microsoft.OpenApi/Models/OpenApiRequestBody.cs b/src/Microsoft.OpenApi/Models/OpenApiRequestBody.cs
index 302cfc5ae..7072b2530 100644
--- a/src/Microsoft.OpenApi/Models/OpenApiRequestBody.cs
+++ b/src/Microsoft.OpenApi/Models/OpenApiRequestBody.cs
@@ -4,7 +4,6 @@
 using System;
 using System.Collections.Generic;
 using System.Linq;
-using Microsoft.OpenApi.Any;
 using Microsoft.OpenApi.Extensions;
 using Microsoft.OpenApi.Interfaces;
 using Microsoft.OpenApi.Models.Interfaces;
@@ -110,7 +109,7 @@ public IOpenApiParameter ConvertToBodyParameter(IOpenApiWriter writer)
             // Clone extensions so we can remove the x-bodyName extensions from the output V2 model.
             if (bodyParameter.Extensions is not null && 
                 bodyParameter.Extensions.TryGetValue(OpenApiConstants.BodyName, out var bodyNameExtension) &&
-                bodyNameExtension is OpenApiAny bodyName)
+                bodyNameExtension is JsonNodeExtension bodyName)
             {
                 bodyParameter.Name = string.IsNullOrEmpty(bodyName.Node.ToString()) ? "body" : bodyName.Node.ToString();
                 bodyParameter.Extensions.Remove(OpenApiConstants.BodyName);
diff --git a/src/Microsoft.OpenApi/Models/OpenApiSchema.cs b/src/Microsoft.OpenApi/Models/OpenApiSchema.cs
index 94d0d9299..efbd3a2eb 100644
--- a/src/Microsoft.OpenApi/Models/OpenApiSchema.cs
+++ b/src/Microsoft.OpenApi/Models/OpenApiSchema.cs
@@ -6,7 +6,6 @@
 using System.Linq;
 using System.Text.Json;
 using System.Text.Json.Nodes;
-using Microsoft.OpenApi.Any;
 using Microsoft.OpenApi.Extensions;
 using Microsoft.OpenApi.Helpers;
 using Microsoft.OpenApi.Interfaces;
@@ -755,7 +754,7 @@ private void SerializeTypeProperty(JsonSchemaType? type, IOpenApiWriter writer,
             var isNullable = (Type.HasValue && Type.Value.HasFlag(JsonSchemaType.Null)) ||
                                 Extensions is not null &&
                                 Extensions.TryGetValue(OpenApiConstants.NullableExtension, out var nullExtRawValue) &&
-                                nullExtRawValue is OpenApiAny { Node: JsonNode jsonNode } &&
+                                nullExtRawValue is JsonNodeExtension { Node: JsonNode jsonNode } &&
                                 jsonNode.GetValueKind() is JsonValueKind.True;
             if (type is null)
             {
diff --git a/src/Microsoft.OpenApi/Reader/ParseNodes/AnyMapFieldMapParameter.cs b/src/Microsoft.OpenApi/Reader/ParseNodes/AnyMapFieldMapParameter.cs
index 883aa137b..1bbb387dd 100644
--- a/src/Microsoft.OpenApi/Reader/ParseNodes/AnyMapFieldMapParameter.cs
+++ b/src/Microsoft.OpenApi/Reader/ParseNodes/AnyMapFieldMapParameter.cs
@@ -27,7 +27,7 @@ public AnyMapFieldMapParameter(
         }
 
         /// <summary>
-        /// Function to retrieve the property that is a map from string to an inner element containing IOpenApiAny.
+        /// Function to retrieve the property that is a map from string to an inner element.
         /// </summary>
         public Func<T, Dictionary<string, U>?> PropertyMapGetter { get; }
 
diff --git a/src/Microsoft.OpenApi/Reader/ParseNodes/MapNode.cs b/src/Microsoft.OpenApi/Reader/ParseNodes/MapNode.cs
index ae7adefa6..f16807701 100644
--- a/src/Microsoft.OpenApi/Reader/ParseNodes/MapNode.cs
+++ b/src/Microsoft.OpenApi/Reader/ParseNodes/MapNode.cs
@@ -9,8 +9,8 @@
 using System.Text.Json;
 using System.Text.Json.Nodes;
 using System.Text.Json.Serialization;
-using Microsoft.OpenApi.Any;
 using Microsoft.OpenApi.Exceptions;
+using Microsoft.OpenApi.Extensions;
 using Microsoft.OpenApi.Models;
 
 namespace Microsoft.OpenApi.Reader.ParseNodes
@@ -191,7 +191,7 @@ public override string GetRaw()
         }
 
         /// <summary>
-        /// Create an <see cref="OpenApiAny"/>
+        /// Create an <see cref="JsonNodeExtension"/>
         /// </summary>
         /// <returns>The created Json object.</returns>
         public override JsonNode CreateAny()
diff --git a/src/Microsoft.OpenApi/Reader/V2/OpenApiOperationDeserializer.cs b/src/Microsoft.OpenApi/Reader/V2/OpenApiOperationDeserializer.cs
index 4e53273e8..ebea2bc40 100644
--- a/src/Microsoft.OpenApi/Reader/V2/OpenApiOperationDeserializer.cs
+++ b/src/Microsoft.OpenApi/Reader/V2/OpenApiOperationDeserializer.cs
@@ -3,14 +3,12 @@
 
 using System.Collections.Generic;
 using System.Linq;
-using Microsoft.OpenApi.Any;
 using Microsoft.OpenApi.Extensions;
 using Microsoft.OpenApi.Models;
 using Microsoft.OpenApi.Reader.ParseNodes;
 using Microsoft.OpenApi.Models.References;
 using Microsoft.OpenApi.Models.Interfaces;
 using System;
-using Microsoft.OpenApi.Interfaces;
 
 namespace Microsoft.OpenApi.Reader.V2
 {
@@ -242,7 +240,7 @@ internal static IOpenApiRequestBody CreateRequestBody(
             if (bodyParameter.Name is not null)
             {
                 requestBody.Extensions ??= [];
-                requestBody.Extensions[OpenApiConstants.BodyName] = new OpenApiAny(bodyParameter.Name);
+                requestBody.Extensions[OpenApiConstants.BodyName] = new JsonNodeExtension(bodyParameter.Name);
             }            
             return requestBody;
         }
diff --git a/src/Microsoft.OpenApi/Reader/V2/OpenApiV2Deserializer.cs b/src/Microsoft.OpenApi/Reader/V2/OpenApiV2Deserializer.cs
index dc347615e..c791d1f56 100644
--- a/src/Microsoft.OpenApi/Reader/V2/OpenApiV2Deserializer.cs
+++ b/src/Microsoft.OpenApi/Reader/V2/OpenApiV2Deserializer.cs
@@ -5,8 +5,8 @@
 using System.Collections.Generic;
 using System.Linq;
 using System.Text.Json.Nodes;
-using Microsoft.OpenApi.Any;
 using Microsoft.OpenApi.Exceptions;
+using Microsoft.OpenApi.Extensions;
 using Microsoft.OpenApi.Interfaces;
 using Microsoft.OpenApi.Models;
 using Microsoft.OpenApi.Reader.ParseNodes;
@@ -86,7 +86,7 @@ private static IOpenApiExtension LoadExtension(string name, ParseNode node)
             }
             else
             {
-                return new OpenApiAny(node.CreateAny());
+                return new JsonNodeExtension(node.CreateAny());
             }
         }
 
diff --git a/src/Microsoft.OpenApi/Reader/V2/OpenApiV2VersionService.cs b/src/Microsoft.OpenApi/Reader/V2/OpenApiV2VersionService.cs
index ec46036e0..354358ca6 100644
--- a/src/Microsoft.OpenApi/Reader/V2/OpenApiV2VersionService.cs
+++ b/src/Microsoft.OpenApi/Reader/V2/OpenApiV2VersionService.cs
@@ -3,8 +3,8 @@
 
 using System;
 using System.Collections.Generic;
-using Microsoft.OpenApi.Any;
 using Microsoft.OpenApi.Exceptions;
+using Microsoft.OpenApi.Extensions;
 using Microsoft.OpenApi.Interfaces;
 using Microsoft.OpenApi.Models;
 using Microsoft.OpenApi.Properties;
@@ -31,7 +31,7 @@ public OpenApiV2VersionService(OpenApiDiagnostic diagnostic)
 
         private readonly Dictionary<Type, Func<ParseNode, OpenApiDocument, object?>> _loaders = new()
         {
-            [typeof(OpenApiAny)] = OpenApiV2Deserializer.LoadAny,
+            [typeof(JsonNodeExtension)] = OpenApiV2Deserializer.LoadAny,
             [typeof(OpenApiContact)] = OpenApiV2Deserializer.LoadContact,
             [typeof(OpenApiExternalDocs)] = OpenApiV2Deserializer.LoadExternalDocs,
             [typeof(OpenApiHeader)] = OpenApiV2Deserializer.LoadHeader,
diff --git a/src/Microsoft.OpenApi/Reader/V3/OpenApiV3Deserializer.cs b/src/Microsoft.OpenApi/Reader/V3/OpenApiV3Deserializer.cs
index 29eb3db70..4049fe0c0 100644
--- a/src/Microsoft.OpenApi/Reader/V3/OpenApiV3Deserializer.cs
+++ b/src/Microsoft.OpenApi/Reader/V3/OpenApiV3Deserializer.cs
@@ -5,9 +5,9 @@
 using System.Collections.Generic;
 using System.Linq;
 using System.Text.Json.Nodes;
-using Microsoft.OpenApi.Any;
 using Microsoft.OpenApi.Exceptions;
 using Microsoft.OpenApi.Expressions;
+using Microsoft.OpenApi.Extensions;
 using Microsoft.OpenApi.Interfaces;
 using Microsoft.OpenApi.Models;
 using Microsoft.OpenApi.Reader.ParseNodes;
@@ -131,9 +131,9 @@ private static RuntimeExpressionAnyWrapper LoadRuntimeExpressionAnyWrapper(Parse
             };
         }
 
-        public static OpenApiAny LoadAny(ParseNode node, OpenApiDocument hostDocument)
+        public static JsonNodeExtension LoadAny(ParseNode node, OpenApiDocument hostDocument)
         {
-            return new OpenApiAny(node.CreateAny());
+            return new JsonNodeExtension(node.CreateAny());
         }
 
         private static IOpenApiExtension LoadExtension(string name, ParseNode node)
@@ -145,7 +145,7 @@ private static IOpenApiExtension LoadExtension(string name, ParseNode node)
             }
             else
             {
-                return new OpenApiAny(node.CreateAny());
+                return new JsonNodeExtension(node.CreateAny());
             }
         }
 
diff --git a/src/Microsoft.OpenApi/Reader/V3/OpenApiV3VersionService.cs b/src/Microsoft.OpenApi/Reader/V3/OpenApiV3VersionService.cs
index 34ad86fe3..cfbf30bae 100644
--- a/src/Microsoft.OpenApi/Reader/V3/OpenApiV3VersionService.cs
+++ b/src/Microsoft.OpenApi/Reader/V3/OpenApiV3VersionService.cs
@@ -4,7 +4,7 @@
 using System;
 using System.Collections.Generic;
 using System.Linq;
-using Microsoft.OpenApi.Any;
+using Microsoft.OpenApi.Extensions;
 using Microsoft.OpenApi.Interfaces;
 using Microsoft.OpenApi.Models;
 using Microsoft.OpenApi.Models.References;
@@ -32,7 +32,7 @@ public OpenApiV3VersionService(OpenApiDiagnostic diagnostic)
 
         private readonly Dictionary<Type, Func<ParseNode, OpenApiDocument, object>> _loaders = new()
         {
-            [typeof(OpenApiAny)] = OpenApiV3Deserializer.LoadAny,
+            [typeof(JsonNodeExtension)] = OpenApiV3Deserializer.LoadAny,
             [typeof(OpenApiCallback)] = OpenApiV3Deserializer.LoadCallback,
             [typeof(OpenApiComponents)] = OpenApiV3Deserializer.LoadComponents,
             [typeof(OpenApiContact)] = OpenApiV3Deserializer.LoadContact,
diff --git a/src/Microsoft.OpenApi/Reader/V31/OpenApiV31Deserializer.cs b/src/Microsoft.OpenApi/Reader/V31/OpenApiV31Deserializer.cs
index 4ecb26bf7..9b871863f 100644
--- a/src/Microsoft.OpenApi/Reader/V31/OpenApiV31Deserializer.cs
+++ b/src/Microsoft.OpenApi/Reader/V31/OpenApiV31Deserializer.cs
@@ -4,9 +4,9 @@
 using System;
 using System.Linq;
 using System.Text.Json.Nodes;
-using Microsoft.OpenApi.Any;
 using Microsoft.OpenApi.Exceptions;
 using Microsoft.OpenApi.Expressions;
+using Microsoft.OpenApi.Extensions;
 using Microsoft.OpenApi.Interfaces;
 using Microsoft.OpenApi.Models;
 using Microsoft.OpenApi.Reader.ParseNodes;
@@ -139,7 +139,7 @@ private static IOpenApiExtension LoadExtension(string name, ParseNode node)
         {
             return node.Context.ExtensionParsers is not null && node.Context.ExtensionParsers.TryGetValue(name, out var parser)
                 ? parser(node.CreateAny(), OpenApiSpecVersion.OpenApi3_1)
-                : new OpenApiAny(node.CreateAny());
+                : new JsonNodeExtension(node.CreateAny());
         }
 
         private static string? LoadString(ParseNode node)
diff --git a/src/Microsoft.OpenApi/Reader/V31/OpenApiV31VersionService.cs b/src/Microsoft.OpenApi/Reader/V31/OpenApiV31VersionService.cs
index 90d8e86aa..648fcc93e 100644
--- a/src/Microsoft.OpenApi/Reader/V31/OpenApiV31VersionService.cs
+++ b/src/Microsoft.OpenApi/Reader/V31/OpenApiV31VersionService.cs
@@ -4,7 +4,7 @@
 using System;
 using System.Collections.Generic;
 using System.Linq;
-using Microsoft.OpenApi.Any;
+using Microsoft.OpenApi.Extensions;
 using Microsoft.OpenApi.Interfaces;
 using Microsoft.OpenApi.Models;
 using Microsoft.OpenApi.Models.References;
@@ -31,7 +31,7 @@ public OpenApiV31VersionService(OpenApiDiagnostic diagnostic)
 
         private readonly Dictionary<Type, Func<ParseNode, OpenApiDocument, object>> _loaders = new Dictionary<Type, Func<ParseNode, OpenApiDocument, object>>
         {
-            [typeof(OpenApiAny)] = OpenApiV31Deserializer.LoadAny,
+            [typeof(JsonNodeExtension)] = OpenApiV31Deserializer.LoadAny,
             [typeof(OpenApiCallback)] = OpenApiV31Deserializer.LoadCallback,
             [typeof(OpenApiComponents)] = OpenApiV31Deserializer.LoadComponents,
             [typeof(OpenApiContact)] = OpenApiV31Deserializer.LoadContact,
diff --git a/src/Microsoft.OpenApi/Services/OpenApiWalker.cs b/src/Microsoft.OpenApi/Services/OpenApiWalker.cs
index c0cc15979..56eea541a 100644
--- a/src/Microsoft.OpenApi/Services/OpenApiWalker.cs
+++ b/src/Microsoft.OpenApi/Services/OpenApiWalker.cs
@@ -6,7 +6,6 @@
 using System.Linq;
 using System.Net.Http;
 using System.Text.Json.Nodes;
-using Microsoft.OpenApi.Any;
 using Microsoft.OpenApi.Extensions;
 using Microsoft.OpenApi.Interfaces;
 using Microsoft.OpenApi.Models;
@@ -965,7 +964,7 @@ internal void Walk(Dictionary<string, IOpenApiExample>? examples)
         }
 
         /// <summary>
-        /// Visits <see cref="OpenApiAny"/> and child objects
+        /// Visits <see cref="JsonNodeExtension"/> and child objects
         /// </summary>
         internal void Walk(JsonNode? example)
         {
diff --git a/src/Microsoft.OpenApi/Writers/OpenApiWriterAnyExtensions.cs b/src/Microsoft.OpenApi/Writers/OpenApiWriterAnyExtensions.cs
index 09ee79309..4e46c5bf1 100644
--- a/src/Microsoft.OpenApi/Writers/OpenApiWriterAnyExtensions.cs
+++ b/src/Microsoft.OpenApi/Writers/OpenApiWriterAnyExtensions.cs
@@ -6,13 +6,13 @@
 using System.Globalization;
 using System.Text.Json;
 using System.Text.Json.Nodes;
-using Microsoft.OpenApi.Any;
+using Microsoft.OpenApi.Extensions;
 using Microsoft.OpenApi.Interfaces;
 
 namespace Microsoft.OpenApi.Writers
 {
     /// <summary>
-    /// Extensions methods for writing the <see cref="OpenApiAny"/>
+    /// Extensions methods for writing the <see cref="JsonNodeExtension"/>
     /// </summary>
     public static class OpenApiWriterAnyExtensions
     {
diff --git a/test/Microsoft.OpenApi.Hidi.Tests/Formatters/PowerShellFormatterTests.cs b/test/Microsoft.OpenApi.Hidi.Tests/Formatters/PowerShellFormatterTests.cs
index 7b3cd338e..0e618ba1b 100644
--- a/test/Microsoft.OpenApi.Hidi.Tests/Formatters/PowerShellFormatterTests.cs
+++ b/test/Microsoft.OpenApi.Hidi.Tests/Formatters/PowerShellFormatterTests.cs
@@ -1,8 +1,6 @@
-using Microsoft.OpenApi.Any;
+using Microsoft.OpenApi.Extensions;
 using Microsoft.OpenApi.Hidi.Formatters;
-using Microsoft.OpenApi.Interfaces;
 using Microsoft.OpenApi.Models;
-using Microsoft.OpenApi.Models.Interfaces;
 using Microsoft.OpenApi.Services;
 using Xunit;
 
@@ -147,7 +145,7 @@ private static OpenApiDocument GetSampleOpenApiDocument()
                                         Extensions = new()
                                         {
                                             {
-                                                "x-ms-docs-operation-type", new OpenApiAny("function")
+                                                "x-ms-docs-operation-type", new JsonNodeExtension("function")
                                             }
                                         }
                                     }
diff --git a/test/Microsoft.OpenApi.Hidi.Tests/UtilityFiles/OpenApiDocumentMock.cs b/test/Microsoft.OpenApi.Hidi.Tests/UtilityFiles/OpenApiDocumentMock.cs
index 421cecdd7..3335f6b7f 100644
--- a/test/Microsoft.OpenApi.Hidi.Tests/UtilityFiles/OpenApiDocumentMock.cs
+++ b/test/Microsoft.OpenApi.Hidi.Tests/UtilityFiles/OpenApiDocumentMock.cs
@@ -1,8 +1,7 @@
 // Copyright (c) Microsoft Corporation. All rights reserved.
 // Licensed under the MIT license.
 
-using Microsoft.OpenApi.Any;
-using Microsoft.OpenApi.Interfaces;
+using Microsoft.OpenApi.Extensions;
 using Microsoft.OpenApi.Models;
 using Microsoft.OpenApi.Models.Interfaces;
 using Microsoft.OpenApi.Models.References;
@@ -475,7 +474,7 @@ public static OpenApiDocument CreateOpenApiDocument()
                                             Extensions = new()
                                             {
                                                 {
-                                                    "x-ms-docs-key-type", new OpenApiAny("call")
+                                                    "x-ms-docs-key-type", new JsonNodeExtension("call")
                                                 }
                                             }
                                         }
@@ -492,7 +491,7 @@ public static OpenApiDocument CreateOpenApiDocument()
                                     Extensions = new()
                                     {
                                         {
-                                            "x-ms-docs-operation-type", new OpenApiAny("action")
+                                            "x-ms-docs-operation-type", new JsonNodeExtension("action")
                                         }
                                     }
                                 }
@@ -523,7 +522,7 @@ public static OpenApiDocument CreateOpenApiDocument()
                                             Extensions = new()
                                             {
                                                 {
-                                                    "x-ms-docs-key-type", new OpenApiAny("group")
+                                                    "x-ms-docs-key-type", new JsonNodeExtension("group")
                                                 }
                                             }
                                         },
@@ -540,7 +539,7 @@ public static OpenApiDocument CreateOpenApiDocument()
                                             Extensions = new()
                                             {
                                                 {
-                                                    "x-ms-docs-key-type", new OpenApiAny("event")
+                                                    "x-ms-docs-key-type", new JsonNodeExtension("event")
                                                 }
                                             }
                                         }
@@ -579,7 +578,7 @@ public static OpenApiDocument CreateOpenApiDocument()
                                     Extensions = new()
                                     {
                                         {
-                                            "x-ms-docs-operation-type", new OpenApiAny("function")
+                                            "x-ms-docs-operation-type", new JsonNodeExtension("function")
                                         }
                                     }
                                 }
diff --git a/test/Microsoft.OpenApi.Readers.Tests/V2Tests/OpenApiDocumentTests.cs b/test/Microsoft.OpenApi.Readers.Tests/V2Tests/OpenApiDocumentTests.cs
index d6daa59d8..c557ade80 100644
--- a/test/Microsoft.OpenApi.Readers.Tests/V2Tests/OpenApiDocumentTests.cs
+++ b/test/Microsoft.OpenApi.Readers.Tests/V2Tests/OpenApiDocumentTests.cs
@@ -9,7 +9,7 @@
 using System.Threading.Tasks;
 using FluentAssertions;
 using FluentAssertions.Equivalency;
-using Microsoft.OpenApi.Any;
+using Microsoft.OpenApi.Extensions;
 using Microsoft.OpenApi.Models;
 using Microsoft.OpenApi.Models.Interfaces;
 using Microsoft.OpenApi.Models.References;
@@ -55,7 +55,7 @@ public void ParseDocumentWithDifferentCultureShouldSucceed(string culture)
                 "yaml", SettingsFixture.ReaderSettings);
 
             Assert.Equal("0.9.1", result.Document.Info.Version, StringComparer.OrdinalIgnoreCase);
-            var extension = Assert.IsType<OpenApiAny>(result.Document.Info.Extensions["x-extension"]);
+            var extension = Assert.IsType<JsonNodeExtension>(result.Document.Info.Extensions["x-extension"]);
             Assert.Equal(2.335M, extension.Node.GetValue<decimal>());
             var sampleSchema = Assert.IsType<OpenApiSchema>(result.Document.Components.Schemas["sampleSchema"]);
             var samplePropertySchema = Assert.IsType<OpenApiSchema>(sampleSchema.Properties["sampleProperty"]);
diff --git a/test/Microsoft.OpenApi.Readers.Tests/V2Tests/OpenApiHeaderTests.cs b/test/Microsoft.OpenApi.Readers.Tests/V2Tests/OpenApiHeaderTests.cs
index 86ebfcab2..62de886f5 100644
--- a/test/Microsoft.OpenApi.Readers.Tests/V2Tests/OpenApiHeaderTests.cs
+++ b/test/Microsoft.OpenApi.Readers.Tests/V2Tests/OpenApiHeaderTests.cs
@@ -4,7 +4,7 @@
 using System.IO;
 using FluentAssertions;
 using FluentAssertions.Equivalency;
-using Microsoft.OpenApi.Any;
+using Microsoft.OpenApi.Extensions;
 using Microsoft.OpenApi.Models;
 using Microsoft.OpenApi.Reader.ParseNodes;
 using Microsoft.OpenApi.Reader.V2;
@@ -38,7 +38,7 @@ public void ParseHeaderWithDefaultShouldSucceed()
                     {
                         Type = JsonSchemaType.Number,
                         Format = "float",
-                        Default = new OpenApiAny(5).Node
+                        Default = new JsonNodeExtension(5).Node
                     }
                 },
                 options => options
@@ -69,9 +69,9 @@ public void ParseHeaderWithEnumShouldSucceed()
                         Format = "float",
                         Enum =
                         [
-                            new OpenApiAny(7).Node,
-                            new OpenApiAny(8).Node,
-                            new OpenApiAny(9).Node
+                            new JsonNodeExtension(7).Node,
+                            new JsonNodeExtension(8).Node,
+                            new JsonNodeExtension(9).Node
                         ]
                     }
                 }, options => options.IgnoringCyclicReferences()
diff --git a/test/Microsoft.OpenApi.Readers.Tests/V2Tests/OpenApiOperationTests.cs b/test/Microsoft.OpenApi.Readers.Tests/V2Tests/OpenApiOperationTests.cs
index 3d40535c6..811feec75 100644
--- a/test/Microsoft.OpenApi.Readers.Tests/V2Tests/OpenApiOperationTests.cs
+++ b/test/Microsoft.OpenApi.Readers.Tests/V2Tests/OpenApiOperationTests.cs
@@ -8,9 +8,7 @@
 using System.Text.Json.Nodes;
 using System.Threading.Tasks;
 using FluentAssertions;
-using Microsoft.OpenApi.Any;
 using Microsoft.OpenApi.Extensions;
-using Microsoft.OpenApi.Interfaces;
 using Microsoft.OpenApi.Models;
 using Microsoft.OpenApi.Models.Interfaces;
 using Microsoft.OpenApi.Models.References;
@@ -96,7 +94,7 @@ public class OpenApiOperationTests
                 },
                 Extensions = new()
                 {
-                    [OpenApiConstants.BodyName] = new OpenApiAny("petObject")
+                    [OpenApiConstants.BodyName] = new JsonNodeExtension("petObject")
                 }
             },
             Responses = new OpenApiResponses
diff --git a/test/Microsoft.OpenApi.Readers.Tests/V2Tests/OpenApiParameterTests.cs b/test/Microsoft.OpenApi.Readers.Tests/V2Tests/OpenApiParameterTests.cs
index 6e8685c4b..30d805c66 100644
--- a/test/Microsoft.OpenApi.Readers.Tests/V2Tests/OpenApiParameterTests.cs
+++ b/test/Microsoft.OpenApi.Readers.Tests/V2Tests/OpenApiParameterTests.cs
@@ -4,7 +4,7 @@
 using System.IO;
 using FluentAssertions;
 using FluentAssertions.Equivalency;
-using Microsoft.OpenApi.Any;
+using Microsoft.OpenApi.Extensions;
 using Microsoft.OpenApi.Models;
 using Microsoft.OpenApi.Reader.ParseNodes;
 using Microsoft.OpenApi.Reader.V2;
@@ -239,7 +239,7 @@ public void ParseParameterWithDefaultShouldSucceed()
                     {
                         Type = JsonSchemaType.Number,
                         Format = "float",
-                        Default = new OpenApiAny(5).Node
+                        Default = new JsonNodeExtension(5).Node
                     }
                 }, options => options.IgnoringCyclicReferences().Excluding(x => x.Schema.Default.Parent));
         }
@@ -268,9 +268,9 @@ public void ParseParameterWithEnumShouldSucceed()
                     Format = "float",
                     Enum =
                     [
-                        new OpenApiAny(7).Node,
-                        new OpenApiAny(8).Node,
-                        new OpenApiAny(9).Node
+                        new JsonNodeExtension(7).Node,
+                        new JsonNodeExtension(8).Node,
+                        new JsonNodeExtension(9).Node
                     ]
                 }
             };
diff --git a/test/Microsoft.OpenApi.Readers.Tests/V2Tests/OpenApiSchemaTests.cs b/test/Microsoft.OpenApi.Readers.Tests/V2Tests/OpenApiSchemaTests.cs
index 68f41271a..b4dfae059 100644
--- a/test/Microsoft.OpenApi.Readers.Tests/V2Tests/OpenApiSchemaTests.cs
+++ b/test/Microsoft.OpenApi.Readers.Tests/V2Tests/OpenApiSchemaTests.cs
@@ -7,7 +7,7 @@
 using Xunit;
 using Microsoft.OpenApi.Reader.ParseNodes;
 using Microsoft.OpenApi.Models;
-using Microsoft.OpenApi.Any;
+using Microsoft.OpenApi.Extensions;
 using System.Text.Json.Nodes;
 using System.Collections.Generic;
 using FluentAssertions.Equivalency;
@@ -87,9 +87,9 @@ public void ParseSchemaWithEnumShouldSucceed()
                 Format = "float",
                 Enum =
                 [
-                    new OpenApiAny(7).Node,
-                    new OpenApiAny(8).Node,
-                    new OpenApiAny(9).Node
+                    new JsonNodeExtension(7).Node,
+                    new JsonNodeExtension(8).Node,
+                    new JsonNodeExtension(9).Node
                 ]
             };
 
diff --git a/test/Microsoft.OpenApi.Readers.Tests/V3Tests/OpenApiInfoTests.cs b/test/Microsoft.OpenApi.Readers.Tests/V3Tests/OpenApiInfoTests.cs
index fd7c5e478..94bc24012 100644
--- a/test/Microsoft.OpenApi.Readers.Tests/V3Tests/OpenApiInfoTests.cs
+++ b/test/Microsoft.OpenApi.Readers.Tests/V3Tests/OpenApiInfoTests.cs
@@ -7,7 +7,7 @@
 using System.Text.Json.Nodes;
 using System.Threading.Tasks;
 using FluentAssertions;
-using Microsoft.OpenApi.Any;
+using Microsoft.OpenApi.Extensions;
 using Microsoft.OpenApi.Interfaces;
 using Microsoft.OpenApi.Models;
 using Microsoft.OpenApi.Reader;
@@ -39,7 +39,7 @@ public async Task ParseAdvancedInfoShouldSucceed()
                         Email = "example@example.com",
                         Extensions = new Dictionary<string, IOpenApiExtension>
                         {
-                                ["x-twitter"] = new OpenApiAny("@exampleTwitterHandler")
+                                ["x-twitter"] = new JsonNodeExtension("@exampleTwitterHandler")
                         },
                         Name = "John Doe",
                         Url = new Uri("http://www.example.com/url1")
@@ -48,36 +48,36 @@ public async Task ParseAdvancedInfoShouldSucceed()
                     {
                         Extensions = new Dictionary<string, IOpenApiExtension>
                         { 
-                            ["x-disclaimer"] = new OpenApiAny("Sample Extension String Disclaimer") 
+                            ["x-disclaimer"] = new JsonNodeExtension("Sample Extension String Disclaimer") 
                         },
                         Name = "licenseName",
                         Url = new Uri("http://www.example.com/url2")
                     },
                     Extensions = new Dictionary<string, IOpenApiExtension>
                     {
-                            ["x-something"] = new OpenApiAny("Sample Extension String Something"),
-                            ["x-contact"] = new OpenApiAny(new JsonObject()
+                            ["x-something"] = new JsonNodeExtension("Sample Extension String Something"),
+                            ["x-contact"] = new JsonNodeExtension(new JsonObject()
                             {
                                 ["name"] = "John Doe",
                                 ["url"] = "http://www.example.com/url3",
                                 ["email"] = "example@example.com"
                             }),
-                            ["x-list"] = new OpenApiAny (new JsonArray { "1", "2" })
+                            ["x-list"] = new JsonNodeExtension (new JsonArray { "1", "2" })
                     }
                 }, options => options.IgnoringCyclicReferences()
-                .Excluding(i => ((OpenApiAny)i.Contact.Extensions["x-twitter"]).Node.Parent)
-                .Excluding(i => ((OpenApiAny)i.License.Extensions["x-disclaimer"]).Node.Parent)
-                .Excluding(i => ((OpenApiAny)i.Extensions["x-something"]).Node.Parent)
-                .Excluding(i => ((OpenApiAny)i.Extensions["x-contact"]).Node["name"].Parent)
-                .Excluding(i => ((OpenApiAny)i.Extensions["x-contact"]).Node["name"].Root)
-                .Excluding(i => ((OpenApiAny)i.Extensions["x-contact"]).Node["url"].Parent)
-                .Excluding(i => ((OpenApiAny)i.Extensions["x-contact"]).Node["url"].Root)
-                .Excluding(i => ((OpenApiAny)i.Extensions["x-contact"]).Node["email"].Parent)
-                .Excluding(i => ((OpenApiAny)i.Extensions["x-contact"]).Node["email"].Root)
-                .Excluding(i => ((OpenApiAny)i.Extensions["x-list"]).Node[0].Parent)
-                .Excluding(i => ((OpenApiAny)i.Extensions["x-list"]).Node[0].Root)
-                .Excluding(i => ((OpenApiAny)i.Extensions["x-list"]).Node[1].Parent)
-                .Excluding(i => ((OpenApiAny)i.Extensions["x-list"]).Node[1].Root));
+                .Excluding(i => ((JsonNodeExtension)i.Contact.Extensions["x-twitter"]).Node.Parent)
+                .Excluding(i => ((JsonNodeExtension)i.License.Extensions["x-disclaimer"]).Node.Parent)
+                .Excluding(i => ((JsonNodeExtension)i.Extensions["x-something"]).Node.Parent)
+                .Excluding(i => ((JsonNodeExtension)i.Extensions["x-contact"]).Node["name"].Parent)
+                .Excluding(i => ((JsonNodeExtension)i.Extensions["x-contact"]).Node["name"].Root)
+                .Excluding(i => ((JsonNodeExtension)i.Extensions["x-contact"]).Node["url"].Parent)
+                .Excluding(i => ((JsonNodeExtension)i.Extensions["x-contact"]).Node["url"].Root)
+                .Excluding(i => ((JsonNodeExtension)i.Extensions["x-contact"]).Node["email"].Parent)
+                .Excluding(i => ((JsonNodeExtension)i.Extensions["x-contact"]).Node["email"].Root)
+                .Excluding(i => ((JsonNodeExtension)i.Extensions["x-list"]).Node[0].Parent)
+                .Excluding(i => ((JsonNodeExtension)i.Extensions["x-list"]).Node[0].Root)
+                .Excluding(i => ((JsonNodeExtension)i.Extensions["x-list"]).Node[1].Parent)
+                .Excluding(i => ((JsonNodeExtension)i.Extensions["x-list"]).Node[1].Root));
         }
 
         [Fact]
diff --git a/test/Microsoft.OpenApi.Readers.Tests/V3Tests/OpenApiSchemaTests.cs b/test/Microsoft.OpenApi.Readers.Tests/V3Tests/OpenApiSchemaTests.cs
index d9b4b1901..34cd2f9ca 100644
--- a/test/Microsoft.OpenApi.Readers.Tests/V3Tests/OpenApiSchemaTests.cs
+++ b/test/Microsoft.OpenApi.Readers.Tests/V3Tests/OpenApiSchemaTests.cs
@@ -5,7 +5,6 @@
 using System.IO;
 using System.Text.Json.Nodes;
 using FluentAssertions;
-using Microsoft.OpenApi.Any;
 using Microsoft.OpenApi.Models;
 using Microsoft.OpenApi.Extensions;
 using SharpYaml.Serialization;
@@ -65,12 +64,12 @@ public void ParseExampleStringFragmentShouldSucceed()
 }";
 
             // Act
-            var openApiAny = OpenApiModelFactory.Parse<OpenApiAny>(input, OpenApiSpecVersion.OpenApi3_0, new(), out var diagnostic, settings: SettingsFixture.ReaderSettings);
+            var jsonNodeExtension = OpenApiModelFactory.Parse<JsonNodeExtension>(input, OpenApiSpecVersion.OpenApi3_0, new(), out var diagnostic, settings: SettingsFixture.ReaderSettings);
 
             // Assert
             Assert.Equivalent(new OpenApiDiagnostic(), diagnostic);
 
-            openApiAny.Should().BeEquivalentTo(new OpenApiAny(
+            jsonNodeExtension.Should().BeEquivalentTo(new JsonNodeExtension(
                 new JsonObject
                 {
                     ["foo"] = "bar",
@@ -88,12 +87,12 @@ public void ParseEnumFragmentShouldSucceed()
 ]";
 
             // Act
-            var openApiAny = OpenApiModelFactory.Parse<OpenApiAny>(input, OpenApiSpecVersion.OpenApi3_0, new(), out var diagnostic, settings: SettingsFixture.ReaderSettings);
+            var jsonNodeExtension = OpenApiModelFactory.Parse<JsonNodeExtension>(input, OpenApiSpecVersion.OpenApi3_0, new(), out var diagnostic, settings: SettingsFixture.ReaderSettings);
 
             // Assert
             Assert.Equivalent(new OpenApiDiagnostic(), diagnostic);
 
-            openApiAny.Should().BeEquivalentTo(new OpenApiAny(
+            jsonNodeExtension.Should().BeEquivalentTo(new JsonNodeExtension(
                 new JsonArray
                 {
                     "foo",
@@ -213,8 +212,8 @@ public void ParseBasicSchemaWithExampleShouldSucceed()
                 },
                 Example = new JsonObject
                 {
-                    ["name"] = new OpenApiAny("Puma").Node,
-                    ["id"] = new OpenApiAny(1).Node
+                    ["name"] = new JsonNodeExtension("Puma").Node,
+                    ["id"] = new JsonNodeExtension(1).Node
                 }
             }, options => options
             .IgnoringCyclicReferences()
diff --git a/test/Microsoft.OpenApi.Tests/MicrosoftExtensions/OpenApiDeprecationExtensionTests.cs b/test/Microsoft.OpenApi.Tests/MicrosoftExtensions/OpenApiDeprecationExtensionTests.cs
index f4364d032..ba721cc15 100644
--- a/test/Microsoft.OpenApi.Tests/MicrosoftExtensions/OpenApiDeprecationExtensionTests.cs
+++ b/test/Microsoft.OpenApi.Tests/MicrosoftExtensions/OpenApiDeprecationExtensionTests.cs
@@ -1,7 +1,6 @@
 using System;
 using System.IO;
 using Microsoft.OpenApi.MicrosoftExtensions;
-using Microsoft.OpenApi.Any;
 using Microsoft.OpenApi.Writers;
 using Xunit;
 using System.Text.Json.Nodes;
diff --git a/test/Microsoft.OpenApi.Tests/MicrosoftExtensions/OpenApiPagingExtensionsTests.cs b/test/Microsoft.OpenApi.Tests/MicrosoftExtensions/OpenApiPagingExtensionsTests.cs
index 3d084908c..e341e5011 100644
--- a/test/Microsoft.OpenApi.Tests/MicrosoftExtensions/OpenApiPagingExtensionsTests.cs
+++ b/test/Microsoft.OpenApi.Tests/MicrosoftExtensions/OpenApiPagingExtensionsTests.cs
@@ -1,10 +1,10 @@
 using System;
 using System.IO;
 using Microsoft.OpenApi.MicrosoftExtensions;
-using Microsoft.OpenApi.Any;
 using Microsoft.OpenApi.Writers;
 using Xunit;
 using System.Text.Json.Nodes;
+using Microsoft.OpenApi.Extensions;
 
 namespace Microsoft.OpenApi.Tests.MicrosoftExtensions;
 
@@ -77,9 +77,9 @@ public void ParsesPagingInfo()
         // Arrange
         var obj = new JsonObject
         {
-            ["nextLinkName"] = new OpenApiAny("@odata.nextLink").Node,
-            ["operationName"] = new OpenApiAny("more").Node,
-            ["itemName"] = new OpenApiAny("item").Node,
+            ["nextLinkName"] = new JsonNodeExtension("@odata.nextLink").Node,
+            ["operationName"] = new JsonNodeExtension("more").Node,
+            ["itemName"] = new JsonNodeExtension("item").Node,
         };
 
         // Act
diff --git a/test/Microsoft.OpenApi.Tests/Models/OpenApiContactTests.cs b/test/Microsoft.OpenApi.Tests/Models/OpenApiContactTests.cs
index 114956a11..5f729b884 100644
--- a/test/Microsoft.OpenApi.Tests/Models/OpenApiContactTests.cs
+++ b/test/Microsoft.OpenApi.Tests/Models/OpenApiContactTests.cs
@@ -1,11 +1,8 @@
 // Copyright (c) Microsoft Corporation. All rights reserved.
 // Licensed under the MIT license.
 
-using System.Collections.Generic;
 using System.Threading.Tasks;
-using Microsoft.OpenApi.Any;
 using Microsoft.OpenApi.Extensions;
-using Microsoft.OpenApi.Interfaces;
 using Microsoft.OpenApi.Models;
 using Xunit;
 
@@ -23,7 +20,7 @@ public class OpenApiContactTests
             Email = "support@example.com",
             Extensions = new()
             {
-                {"x-internal-id", new OpenApiAny(42)}
+                {"x-internal-id", new JsonNodeExtension(42)}
             }
         };
 
diff --git a/test/Microsoft.OpenApi.Tests/Models/OpenApiDocumentTests.cs b/test/Microsoft.OpenApi.Tests/Models/OpenApiDocumentTests.cs
index 48310df15..bbeeaf10f 100644
--- a/test/Microsoft.OpenApi.Tests/Models/OpenApiDocumentTests.cs
+++ b/test/Microsoft.OpenApi.Tests/Models/OpenApiDocumentTests.cs
@@ -7,9 +7,7 @@
 using System.IO;
 using System.Net.Http;
 using System.Threading.Tasks;
-using Microsoft.OpenApi.Any;
 using Microsoft.OpenApi.Extensions;
-using Microsoft.OpenApi.Interfaces;
 using Microsoft.OpenApi.Models;
 using Microsoft.OpenApi.Models.Interfaces;
 using Microsoft.OpenApi.Models.References;
@@ -973,12 +971,12 @@ public class OpenApiDocumentTests
                                         Type = JsonSchemaType.Integer,
                                         Extensions = new()
                                         {
-                                            ["my-extension"] = new OpenApiAny(4)
+                                            ["my-extension"] = new JsonNodeExtension(4)
                                         }
                                     },
                                     Extensions = new()
                                     {
-                                        ["my-extension"] = new OpenApiAny(4),
+                                        ["my-extension"] = new JsonNodeExtension(4),
                                     }
                                 },
                                 new OpenApiParameter
@@ -992,12 +990,12 @@ public class OpenApiDocumentTests
                                         Type = JsonSchemaType.Integer,
                                         Extensions = new()
                                         {
-                                            ["my-extension"] = new OpenApiAny(4)
+                                            ["my-extension"] = new JsonNodeExtension(4)
                                         }
                                     },
                                     Extensions = new()
                                     {
-                                        ["my-extension"] = new OpenApiAny(4),
+                                        ["my-extension"] = new JsonNodeExtension(4),
                                     }
                                 },
                             ],
@@ -2079,7 +2077,7 @@ public async Task SerializeDocumentTagsWithMultipleExtensionsWorks()
                         Name = "tag1",
                         Extensions = new()
                         {
-                            ["x-tag1"] = new OpenApiAny("tag1")
+                            ["x-tag1"] = new JsonNodeExtension("tag1")
                         }
                     },
                     new OpenApiTag
@@ -2087,7 +2085,7 @@ public async Task SerializeDocumentTagsWithMultipleExtensionsWorks()
                         Name = "tag2",
                         Extensions = new()
                         {
-                            ["x-tag2"] = new OpenApiAny("tag2")
+                            ["x-tag2"] = new JsonNodeExtension("tag2")
                         }
                     }
                 }
@@ -2108,7 +2106,7 @@ public void DeduplicatesTags()
                         Name = "tag1",
                         Extensions = new()
                         {
-                            ["x-tag1"] = new OpenApiAny("tag1")
+                            ["x-tag1"] = new JsonNodeExtension("tag1")
                         }
                     },
                     new OpenApiTag
@@ -2116,7 +2114,7 @@ public void DeduplicatesTags()
                         Name = "tag2",
                         Extensions = new()
                         {
-                            ["x-tag2"] = new OpenApiAny("tag2")
+                            ["x-tag2"] = new JsonNodeExtension("tag2")
                         }
                     },
                     new OpenApiTag
@@ -2124,7 +2122,7 @@ public void DeduplicatesTags()
                         Name = "tag1",
                         Extensions = new()
                         {
-                            ["x-tag1"] = new OpenApiAny("tag1")
+                            ["x-tag1"] = new JsonNodeExtension("tag1")
                         }
                     }
                 }
diff --git a/test/Microsoft.OpenApi.Tests/Models/OpenApiInfoTests.cs b/test/Microsoft.OpenApi.Tests/Models/OpenApiInfoTests.cs
index c78c1d74f..3145ee146 100644
--- a/test/Microsoft.OpenApi.Tests/Models/OpenApiInfoTests.cs
+++ b/test/Microsoft.OpenApi.Tests/Models/OpenApiInfoTests.cs
@@ -3,9 +3,7 @@
 
 using System.Collections.Generic;
 using System.Threading.Tasks;
-using Microsoft.OpenApi.Any;
 using Microsoft.OpenApi.Extensions;
-using Microsoft.OpenApi.Interfaces;
 using Microsoft.OpenApi.Models;
 using Xunit;
 
@@ -24,7 +22,7 @@ public class OpenApiInfoTests
             Version = "1.1.1",
             Extensions = new()
             {
-                {"x-updated", new OpenApiAny("metadata")}
+                {"x-updated", new JsonNodeExtension("metadata")}
             }
         };
 
diff --git a/test/Microsoft.OpenApi.Tests/Models/OpenApiLicenseTests.cs b/test/Microsoft.OpenApi.Tests/Models/OpenApiLicenseTests.cs
index acad2216a..114ac6945 100644
--- a/test/Microsoft.OpenApi.Tests/Models/OpenApiLicenseTests.cs
+++ b/test/Microsoft.OpenApi.Tests/Models/OpenApiLicenseTests.cs
@@ -1,11 +1,8 @@
 // Copyright (c) Microsoft Corporation. All rights reserved.
 // Licensed under the MIT license.
 
-using System.Collections.Generic;
 using System.Threading.Tasks;
-using Microsoft.OpenApi.Any;
 using Microsoft.OpenApi.Extensions;
-using Microsoft.OpenApi.Interfaces;
 using Microsoft.OpenApi.Models;
 using Xunit;
 
@@ -25,7 +22,7 @@ public class OpenApiLicenseTests
             Url = new("http://www.apache.org/licenses/LICENSE-2.0.html"),
             Extensions = new()
             {
-                {"x-copyright", new OpenApiAny("Abc")}
+                {"x-copyright", new JsonNodeExtension("Abc")}
             }
         };
 
diff --git a/test/Microsoft.OpenApi.Tests/Models/OpenApiLinkTests.cs b/test/Microsoft.OpenApi.Tests/Models/OpenApiLinkTests.cs
index 03b406adf..0d1be7130 100644
--- a/test/Microsoft.OpenApi.Tests/Models/OpenApiLinkTests.cs
+++ b/test/Microsoft.OpenApi.Tests/Models/OpenApiLinkTests.cs
@@ -6,9 +6,8 @@
 using System.IO;
 using System.Text.Json.Nodes;
 using System.Threading.Tasks;
-using Microsoft.OpenApi.Any;
 using Microsoft.OpenApi.Expressions;
-using Microsoft.OpenApi.Interfaces;
+using Microsoft.OpenApi.Extensions;
 using Microsoft.OpenApi.Models;
 using Microsoft.OpenApi.Models.References;
 using Microsoft.OpenApi.Writers;
@@ -128,7 +127,7 @@ public void LinkExtensionsSerializationWorks()
             {
                 Extensions = new()
                 {
-                    { "x-display", new OpenApiAny("Abc") 
+                    { "x-display", new JsonNodeExtension("Abc") 
                 }
 }
             };
diff --git a/test/Microsoft.OpenApi.Tests/Models/OpenApiParameterTests.cs b/test/Microsoft.OpenApi.Tests/Models/OpenApiParameterTests.cs
index a9bb4ba78..78eb26f41 100644
--- a/test/Microsoft.OpenApi.Tests/Models/OpenApiParameterTests.cs
+++ b/test/Microsoft.OpenApi.Tests/Models/OpenApiParameterTests.cs
@@ -4,9 +4,7 @@
 using System.Collections.Generic;
 using System.Globalization;
 using System.IO;
-using System.Text.Json.Nodes;
 using System.Threading.Tasks;
-using Microsoft.OpenApi.Any;
 using Microsoft.OpenApi.Extensions;
 using Microsoft.OpenApi.Models;
 using Microsoft.OpenApi.Models.Interfaces;
@@ -76,8 +74,8 @@ public class OpenApiParameterTests
                 {
                     Enum =
                     [
-                        new OpenApiAny("value1").Node,
-                        new OpenApiAny("value2").Node
+                        new JsonNodeExtension("value1").Node,
+                        new JsonNodeExtension("value2").Node
                     ]
                 }
             }
@@ -97,8 +95,8 @@ public class OpenApiParameterTests
                 {
                     Enum =
                     [
-                        new OpenApiAny("value1").Node,
-                        new OpenApiAny("value2").Node
+                        new JsonNodeExtension("value1").Node,
+                        new JsonNodeExtension("value2").Node
                     ]
                 }
             }
diff --git a/test/Microsoft.OpenApi.Tests/Models/OpenApiResponseTests.cs b/test/Microsoft.OpenApi.Tests/Models/OpenApiResponseTests.cs
index 4c579fb9e..64a111e9d 100644
--- a/test/Microsoft.OpenApi.Tests/Models/OpenApiResponseTests.cs
+++ b/test/Microsoft.OpenApi.Tests/Models/OpenApiResponseTests.cs
@@ -5,16 +5,13 @@
 using System.Globalization;
 using System.IO;
 using System.Threading.Tasks;
-using Microsoft.OpenApi.Any;
 using Microsoft.OpenApi.Extensions;
-using Microsoft.OpenApi.Interfaces;
 using Microsoft.OpenApi.Models;
 using Microsoft.OpenApi.Models.Interfaces;
 using Microsoft.OpenApi.Models.References;
 using Microsoft.OpenApi.Writers;
 using VerifyXunit;
 using Xunit;
-using Xunit.Abstractions;
 
 namespace Microsoft.OpenApi.Tests.Models
 {
@@ -38,7 +35,7 @@ public class OpenApiResponseTests
                     Example = "Blabla",
                     Extensions = new()
                     {
-                        ["myextension"] = new OpenApiAny("myextensionvalue"),
+                        ["myextension"] = new JsonNodeExtension("myextensionvalue"),
                     }, 
                 }
             },
@@ -77,7 +74,7 @@ public class OpenApiResponseTests
                     Example = "Blabla",
                     Extensions = new()
                     {
-                        ["myextension"] = new OpenApiAny("myextensionvalue"),
+                        ["myextension"] = new JsonNodeExtension("myextensionvalue"),
                     },
                 }
             },
diff --git a/test/Microsoft.OpenApi.Tests/Models/OpenApiSchemaTests.cs b/test/Microsoft.OpenApi.Tests/Models/OpenApiSchemaTests.cs
index 779a87e3e..82f1ac11b 100644
--- a/test/Microsoft.OpenApi.Tests/Models/OpenApiSchemaTests.cs
+++ b/test/Microsoft.OpenApi.Tests/Models/OpenApiSchemaTests.cs
@@ -8,9 +8,7 @@
 using System.Text.Json.Nodes;
 using System.Threading.Tasks;
 using FluentAssertions;
-using Microsoft.OpenApi.Any;
 using Microsoft.OpenApi.Extensions;
-using Microsoft.OpenApi.Interfaces;
 using Microsoft.OpenApi.Models;
 using Microsoft.OpenApi.Models.Interfaces;
 using Microsoft.OpenApi.Services;
@@ -538,7 +536,7 @@ public void CloningSchemaExtensionsWorks()
             {
                 Extensions = new()
                 {
-                    { "x-myextension", new OpenApiAny(42) }
+                    { "x-myextension", new JsonNodeExtension(42) }
                 }
             };
 
@@ -549,7 +547,7 @@ public void CloningSchemaExtensionsWorks()
             // Act && Assert
             schemaCopy.Extensions = new()
             {
-                { "x-myextension" , new OpenApiAny(40) }
+                { "x-myextension" , new JsonNodeExtension(40) }
             };
             Assert.NotEqual(schema.Extensions, schemaCopy.Extensions);
         }
diff --git a/test/Microsoft.OpenApi.Tests/Models/OpenApiXmlTests.cs b/test/Microsoft.OpenApi.Tests/Models/OpenApiXmlTests.cs
index 173bf6620..6848d2e3d 100644
--- a/test/Microsoft.OpenApi.Tests/Models/OpenApiXmlTests.cs
+++ b/test/Microsoft.OpenApi.Tests/Models/OpenApiXmlTests.cs
@@ -1,11 +1,8 @@
 // Copyright (c) Microsoft Corporation. All rights reserved.
 // Licensed under the MIT license.
 
-using System.Collections.Generic;
 using System.Threading.Tasks;
-using Microsoft.OpenApi.Any;
 using Microsoft.OpenApi.Extensions;
-using Microsoft.OpenApi.Interfaces;
 using Microsoft.OpenApi.Models;
 using Xunit;
 
@@ -23,7 +20,7 @@ public class OpenApiXmlTests
             Attribute = true,
             Extensions = new()
             {
-                {"x-xml-extension", new OpenApiAny(7)}
+                {"x-xml-extension", new JsonNodeExtension(7)}
             }
         };
 
diff --git a/test/Microsoft.OpenApi.Tests/PublicApi/PublicApi.approved.txt b/test/Microsoft.OpenApi.Tests/PublicApi/PublicApi.approved.txt
index 1e3c88ec0..080f648c7 100644
--- a/test/Microsoft.OpenApi.Tests/PublicApi/PublicApi.approved.txt
+++ b/test/Microsoft.OpenApi.Tests/PublicApi/PublicApi.approved.txt
@@ -3,15 +3,6 @@
 [assembly: System.Runtime.CompilerServices.InternalsVisibleTo(@"Microsoft.OpenApi.Readers.Tests, PublicKey=0024000004800000940000000602000000240000525341310004000001000100957cb48387b2a5f54f5ce39255f18f26d32a39990db27cf48737afc6bc62759ba996b8a2bfb675d4e39f3d06ecb55a178b1b4031dcb2a767e29977d88cce864a0d16bfc1b3bebb0edf9fe285f10fffc0a85f93d664fa05af07faa3aad2e545182dbf787e3fd32b56aca95df1a3c4e75dec164a3f1a4c653d971b01ffc39eb3c4")]
 [assembly: System.Runtime.CompilerServices.InternalsVisibleTo(@"Microsoft.OpenApi.Tests, PublicKey=0024000004800000940000000602000000240000525341310004000001000100957cb48387b2a5f54f5ce39255f18f26d32a39990db27cf48737afc6bc62759ba996b8a2bfb675d4e39f3d06ecb55a178b1b4031dcb2a767e29977d88cce864a0d16bfc1b3bebb0edf9fe285f10fffc0a85f93d664fa05af07faa3aad2e545182dbf787e3fd32b56aca95df1a3c4e75dec164a3f1a4c653d971b01ffc39eb3c4")]
 [assembly: System.Runtime.Versioning.TargetFramework(".NETCoreApp,Version=v8.0", FrameworkDisplayName=".NET 8.0")]
-namespace Microsoft.OpenApi.Any
-{
-    public class OpenApiAny : Microsoft.OpenApi.Interfaces.IOpenApiElement, Microsoft.OpenApi.Interfaces.IOpenApiExtension
-    {
-        public OpenApiAny(System.Text.Json.Nodes.JsonNode jsonNode) { }
-        public System.Text.Json.Nodes.JsonNode Node { get; }
-        public void Write(Microsoft.OpenApi.Writers.IOpenApiWriter writer, Microsoft.OpenApi.OpenApiSpecVersion specVersion) { }
-    }
-}
 namespace Microsoft.OpenApi.Attributes
 {
     [System.AttributeUsage(System.AttributeTargets.Property | System.AttributeTargets.Field)]
@@ -149,6 +140,12 @@ namespace Microsoft.OpenApi.Extensions
             where T : System.Attribute { }
         public static string GetDisplayName(this System.Enum enumValue) { }
     }
+    public class JsonNodeExtension : Microsoft.OpenApi.Interfaces.IOpenApiElement, Microsoft.OpenApi.Interfaces.IOpenApiExtension
+    {
+        public JsonNodeExtension(System.Text.Json.Nodes.JsonNode jsonNode) { }
+        public System.Text.Json.Nodes.JsonNode Node { get; }
+        public void Write(Microsoft.OpenApi.Writers.IOpenApiWriter writer, Microsoft.OpenApi.OpenApiSpecVersion specVersion) { }
+    }
     public static class OpenApiElementExtensions
     {
         public static System.Collections.Generic.IEnumerable<Microsoft.OpenApi.Models.OpenApiError> Validate(this Microsoft.OpenApi.Interfaces.IOpenApiElement element, Microsoft.OpenApi.Validations.ValidationRuleSet ruleSet) { }
diff --git a/test/Microsoft.OpenApi.Tests/Services/OpenApiValidatorTests.cs b/test/Microsoft.OpenApi.Tests/Services/OpenApiValidatorTests.cs
index 1de888cd3..13f34598b 100644
--- a/test/Microsoft.OpenApi.Tests/Services/OpenApiValidatorTests.cs
+++ b/test/Microsoft.OpenApi.Tests/Services/OpenApiValidatorTests.cs
@@ -6,7 +6,7 @@
 using System.Net.Http;
 using System.Text.Json;
 using System.Text.Json.Nodes;
-using Microsoft.OpenApi.Any;
+using Microsoft.OpenApi.Extensions;
 using Microsoft.OpenApi.Interfaces;
 using Microsoft.OpenApi.Models;
 using Microsoft.OpenApi.Properties;
@@ -103,8 +103,8 @@ public void ValidateCustomExtension()
         {
             var ruleset = ValidationRuleSet.GetDefaultRuleSet();
 
-            ruleset.Add(typeof(OpenApiAny), 
-             new ValidationRule<OpenApiAny>("FooExtensionRule",
+            ruleset.Add(typeof(JsonNodeExtension), 
+             new ValidationRule<JsonNodeExtension>("FooExtensionRule",
                  (context, item) =>
                  {
                      if (item.Node["Bar"].ToString() == "hey")
@@ -133,7 +133,7 @@ public void ValidateCustomExtension()
             var jsonNode = JsonNode.Parse(extensionNode);
             openApiDocument.Info.Extensions = new Dictionary<string, IOpenApiExtension>
             {
-                { "x-foo", new OpenApiAny(jsonNode) }
+                { "x-foo", new JsonNodeExtension(jsonNode) }
             };
 
             var validator = new OpenApiValidator(ruleset);
@@ -150,8 +150,8 @@ public void ValidateCustomExtension()
         [Fact]
         public void RemoveRuleByName_Invalid()
         {
-            Assert.Throws<ArgumentNullException>(() => new ValidationRule<OpenApiAny>(null, (vc, oaa) => { }));
-            Assert.Throws<ArgumentNullException>(() => new ValidationRule<OpenApiAny>(string.Empty, (vc, oaa) => { }));
+            Assert.Throws<ArgumentNullException>(() => new ValidationRule<JsonNodeExtension>(null, (vc, oaa) => { }));
+            Assert.Throws<ArgumentNullException>(() => new ValidationRule<JsonNodeExtension>(string.Empty, (vc, oaa) => { }));
         }
 
         [Fact]
diff --git a/test/Microsoft.OpenApi.Tests/Validations/OpenApiSchemaValidationTests.cs b/test/Microsoft.OpenApi.Tests/Validations/OpenApiSchemaValidationTests.cs
index f0c772473..be2903023 100644
--- a/test/Microsoft.OpenApi.Tests/Validations/OpenApiSchemaValidationTests.cs
+++ b/test/Microsoft.OpenApi.Tests/Validations/OpenApiSchemaValidationTests.cs
@@ -5,7 +5,7 @@
 using System.Collections.Generic;
 using System.Linq;
 using System.Text.Json.Nodes;
-using Microsoft.OpenApi.Any;
+using Microsoft.OpenApi.Extensions;
 using Microsoft.OpenApi.Models;
 using Microsoft.OpenApi.Models.Interfaces;
 using Microsoft.OpenApi.Properties;
@@ -75,15 +75,15 @@ public void ValidateEnumShouldNotHaveDataTypeMismatchForSimpleSchema()
             {
                 Enum =
                 [
-                    new OpenApiAny("1").Node,
-                    new OpenApiAny(new JsonObject()
+                    new JsonNodeExtension("1").Node,
+                    new JsonNodeExtension(new JsonObject()
                     {
                         ["x"] = 2,
                         ["y"] = "20",
                         ["z"] = "200"
                     }).Node,
-                    new OpenApiAny(new JsonArray() { 3 }).Node,
-                    new OpenApiAny(new JsonObject()
+                    new JsonNodeExtension(new JsonArray() { 3 }).Node,
+                    new JsonNodeExtension(new JsonObject()
                     {
                         ["x"] = 4,
                         ["y"] = 40,
diff --git a/test/Microsoft.OpenApi.Tests/Validations/OpenApiTagValidationTests.cs b/test/Microsoft.OpenApi.Tests/Validations/OpenApiTagValidationTests.cs
index 9824b17f6..400b83e13 100644
--- a/test/Microsoft.OpenApi.Tests/Validations/OpenApiTagValidationTests.cs
+++ b/test/Microsoft.OpenApi.Tests/Validations/OpenApiTagValidationTests.cs
@@ -3,7 +3,7 @@
 
 using System.Collections.Generic;
 using System.Linq;
-using Microsoft.OpenApi.Any;
+using Microsoft.OpenApi.Extensions;
 using Microsoft.OpenApi.Interfaces;
 using Microsoft.OpenApi.Models;
 using Microsoft.OpenApi.Properties;
@@ -44,7 +44,7 @@ public void ValidateExtensionNameStartsWithXDashInTag()
             };
             tag.Extensions = new Dictionary<string, IOpenApiExtension>
             {
-                { "tagExt", new OpenApiAny("value") }
+                { "tagExt", new JsonNodeExtension("value") }
             };
 
             // Act
diff --git a/test/Microsoft.OpenApi.Tests/Writers/OpenApiJsonWriterTests.cs b/test/Microsoft.OpenApi.Tests/Writers/OpenApiJsonWriterTests.cs
index fb149b5ec..d46e69ce6 100644
--- a/test/Microsoft.OpenApi.Tests/Writers/OpenApiJsonWriterTests.cs
+++ b/test/Microsoft.OpenApi.Tests/Writers/OpenApiJsonWriterTests.cs
@@ -10,10 +10,9 @@
 using System.Text;
 using System.Text.Encodings.Web;
 using System.Text.Json;
-using System.Text.Json.Nodes;
 using System.Text.Json.Serialization;
 using System.Threading.Tasks;
-using Microsoft.OpenApi.Any;
+using Microsoft.OpenApi.Extensions;
 using Microsoft.OpenApi.Models;
 using Microsoft.OpenApi.Writers;
 using Xunit;
@@ -320,9 +319,9 @@ public void OpenApiJsonWriterOutputsValidJsonValueWhenSchemaHasNanOrInfinityValu
             {
                 Enum =
                 [
-                    new OpenApiAny("NaN").Node,
-                    new OpenApiAny("Infinity").Node,
-                    new OpenApiAny("-Infinity").Node
+                    new JsonNodeExtension("NaN").Node,
+                    new JsonNodeExtension("Infinity").Node,
+                    new JsonNodeExtension("-Infinity").Node
                 ]
             };