diff --git a/src/NexusReader.Application/Constants/PlanConstants.cs b/src/NexusReader.Application/Constants/PlanConstants.cs
new file mode 100644
index 0000000..fdee337
--- /dev/null
+++ b/src/NexusReader.Application/Constants/PlanConstants.cs
@@ -0,0 +1,15 @@
+namespace NexusReader.Application.Constants;
+
+public static class PlanConstants
+{
+    public const string Free = "Free";
+    public const string Pro = "Pro";
+    public const string Enterprise = "Enterprise";
+
+    public static int GetTokenLimit(string planName) => planName switch
+    {
+        Pro => 100000,
+        Enterprise => 1000000,
+        _ => 10000
+    };
+}