diff --git a/spec3.json b/spec3.json
index f7bb48a..c2ab087 100644
--- a/spec3.json
+++ b/spec3.json
@@ -13615,6 +13615,23 @@
             "type": "string",
             "nullable": true,
             "description": "Guidance text provided to MCP integrations."
+          },
+          "plan": {
+            "allOf": [
+              {
+                "$ref": "#/components/schemas/Plan"
+              }
+            ],
+            "description": "The plan that this workspace is currently on.",
+            "readOnly": true
+          },
+          "entitlements": {
+            "type": "array",
+            "description": "The set of plan-based features that this workspace is entitled to use, derived from its current plan.",
+            "readOnly": true,
+            "items": {
+              "$ref": "#/components/schemas/PlanFeature"
+            }
           }
         }
       },
@@ -13724,6 +13741,33 @@
           "guest"
         ]
       },
+      "Plan": {
+        "type": "string",
+        "description": "The subscription plan that a workspace is on.",
+        "enum": [
+          "community",
+          "standard",
+          "business",
+          "enterprise",
+          "legacy"
+        ]
+      },
+      "PlanFeature": {
+        "type": "string",
+        "description": "A feature that may be entitled to a workspace based on its plan.",
+        "enum": [
+          "auditLog",
+          "advancedSecurity",
+          "guests",
+          "groupSync",
+          "premiumIntegrations",
+          "apiKeyManagement",
+          "contentManagement",
+          "aiAnswers",
+          "customDomain",
+          "saml"
+        ]
+      },
       "CollectionStatus": {
         "type": "string",
         "enum": [
diff --git a/spec3.yml b/spec3.yml
index d3e39b8..5607153 100644
--- a/spec3.yml
+++ b/spec3.yml
@@ -9660,6 +9660,19 @@ components:
           type: string
           nullable: true
           description: Guidance text provided to MCP integrations.
+        plan:
+          allOf:
+            - "$ref": "#/components/schemas/Plan"
+          description: The plan that this workspace is currently on.
+          readOnly: true
+        entitlements:
+          type: array
+          description:
+            The set of plan-based features that this workspace is entitled
+            to use, derived from its current plan.
+          readOnly: true
+          items:
+            "$ref": "#/components/schemas/PlanFeature"
     User:
       type: object
       properties:
@@ -9750,6 +9763,29 @@ components:
         - member
         - viewer
         - guest
+    Plan:
+      type: string
+      description: The subscription plan that a workspace is on.
+      enum:
+        - community
+        - standard
+        - business
+        - enterprise
+        - legacy
+    PlanFeature:
+      type: string
+      description: A feature that may be entitled to a workspace based on its plan.
+      enum:
+        - auditLog
+        - advancedSecurity
+        - guests
+        - groupSync
+        - premiumIntegrations
+        - apiKeyManagement
+        - contentManagement
+        - aiAnswers
+        - customDomain
+        - saml
     CollectionStatus:
       type: string
       enum: