diff --git a/src/Constructorio_NET.Tests/client/modules/SearchTests.cs b/src/Constructorio_NET.Tests/client/modules/SearchTests.cs
index 4ed178d..146d625 100644
--- a/src/Constructorio_NET.Tests/client/modules/SearchTests.cs
+++ b/src/Constructorio_NET.Tests/client/modules/SearchTests.cs
@@ -567,6 +567,20 @@ public async Task GetSearchResultsWithRedirect()
             Assert.IsNotNull(res.ResultId, "ResultId should exist");
         }
 
+        [Test]
+        public void RedirectDataIndexerAccessesArbitraryKeys()
+        {
+            string json = @"{""url"":""/test"",""rule_id"":49023,""match_id"":185282,""foo"":""bar"",""custom_key"":123}";
+            RedirectData data = Newtonsoft.Json.JsonConvert.DeserializeObject<RedirectData>(json);
+
+            Assert.AreEqual("/test", data.Url, "Url property should be accessible");
+            Assert.AreEqual(49023, data.RuleId, "RuleId property should be accessible");
+            Assert.AreEqual(185282, data.MatchId, "MatchId property should be accessible");
+            Assert.AreEqual("bar", data["foo"]?.ToString(), "Indexer should access arbitrary string key");
+            Assert.AreEqual(123L, data["custom_key"], "Indexer should access arbitrary numeric key");
+            Assert.IsNull(data["nonexistent"], "Indexer should return null for missing keys");
+        }
+
         [Test]
         public async Task GetSearchResultsShouldReturnResultWithRefinedContent()
         {
diff --git a/src/constructor.io/models/Search/RedirectData.cs b/src/constructor.io/models/Search/RedirectData.cs
index 000fa4f..4bb121b 100644
--- a/src/constructor.io/models/Search/RedirectData.cs
+++ b/src/constructor.io/models/Search/RedirectData.cs
@@ -1,4 +1,5 @@
 using System;
+using System.Collections.Generic;
 using Newtonsoft.Json;
 
 /**
@@ -16,5 +17,21 @@ public class RedirectData
 
         [JsonProperty("match_id")]
         public int MatchId { get; set; }
+
+        [JsonExtensionData]
+        private Dictionary<string, object> _additionalData;
+
+        /// <summary>
+        /// Indexer for accessing arbitrary metadata keys
+        /// </summary>
+        public object this[string key]
+        {
+            get => _additionalData?.TryGetValue(key, out var value) == true ? value : null;
+            set
+            {
+                _additionalData ??= new Dictionary<string, object>();
+                _additionalData[key] = value;
+            }
+        }
     }
 }
\ No newline at end of file