diff --git a/api/generated/api.json b/api/generated/api.json
index 748dbd7..3d3c3d6 100644
--- a/api/generated/api.json
+++ b/api/generated/api.json
@@ -37265,6 +37265,10 @@
                           "postProcess": {
                             "type": "boolean",
                             "description": "Whether subscribing requires a third-party setup step that the connector instance itself cannot perform. Examples: Salesforce requires AWS EventBridge configuration; Gmail requires a Google Pub/Sub topic to be configured. Any configuration that must happen outside the connector falls into post-process."
+                          },
+                          "subscribeByAPI": {
+                            "type": "boolean",
+                            "description": "Whether the provider supports programmatic subscription via API. If false, provider may still support webhooks via manual configuration in UI. "
                           }
                         }
                       },
@@ -37501,6 +37505,10 @@
                                 "postProcess": {
                                   "type": "boolean",
                                   "description": "Whether subscribing requires a third-party setup step that the connector instance itself cannot perform. Examples: Salesforce requires AWS EventBridge configuration; Gmail requires a Google Pub/Sub topic to be configured. Any configuration that must happen outside the connector falls into post-process."
+                                },
+                                "subscribeByAPI": {
+                                  "type": "boolean",
+                                  "description": "Whether the provider supports programmatic subscription via API. If false, provider may still support webhooks via manual configuration in UI. "
                                 }
                               }
                             }
@@ -38684,6 +38692,10 @@
                         "postProcess": {
                           "type": "boolean",
                           "description": "Whether subscribing requires a third-party setup step that the connector instance itself cannot perform. Examples: Salesforce requires AWS EventBridge configuration; Gmail requires a Google Pub/Sub topic to be configured. Any configuration that must happen outside the connector falls into post-process."
+                        },
+                        "subscribeByAPI": {
+                          "type": "boolean",
+                          "description": "Whether the provider supports programmatic subscription via API. If false, provider may still support webhooks via manual configuration in UI. "
                         }
                       }
                     },
@@ -38920,6 +38932,10 @@
                               "postProcess": {
                                 "type": "boolean",
                                 "description": "Whether subscribing requires a third-party setup step that the connector instance itself cannot perform. Examples: Salesforce requires AWS EventBridge configuration; Gmail requires a Google Pub/Sub topic to be configured. Any configuration that must happen outside the connector falls into post-process."
+                              },
+                              "subscribeByAPI": {
+                                "type": "boolean",
+                                "description": "Whether the provider supports programmatic subscription via API. If false, provider may still support webhooks via manual configuration in UI. "
                               }
                             }
                           }
diff --git a/catalog/catalog.yaml b/catalog/catalog.yaml
index d2e1eea..6747a3f 100644
--- a/catalog/catalog.yaml
+++ b/catalog/catalog.yaml
@@ -668,6 +668,11 @@ components:
             Whether subscribing requires a third-party setup step that the connector instance itself cannot perform.
             Examples: Salesforce requires AWS EventBridge configuration; Gmail requires a Google Pub/Sub topic to be
             configured. Any configuration that must happen outside the connector falls into post-process.
+        subscribeByAPI:
+          type: boolean
+          description: >-
+            Whether the provider supports programmatic subscription via API.
+            If false, provider may still support webhooks via manual configuration in UI. 
 
     BatchWriteSupport:
       required:
diff --git a/catalog/generated/catalog.json b/catalog/generated/catalog.json
index 96ee4d4..2437bfe 100644
--- a/catalog/generated/catalog.json
+++ b/catalog/generated/catalog.json
@@ -1359,6 +1359,10 @@
                 "postProcess": {
                   "type": "boolean",
                   "description": "Whether subscribing requires a third-party setup step that the connector instance itself cannot perform. Examples: Salesforce requires AWS EventBridge configuration; Gmail requires a Google Pub/Sub topic to be configured. Any configuration that must happen outside the connector falls into post-process."
+                },
+                "subscribeByAPI": {
+                  "type": "boolean",
+                  "description": "Whether the provider supports programmatic subscription via API. If false, provider may still support webhooks via manual configuration in UI. "
                 }
               }
             }
@@ -1594,6 +1598,10 @@
               "postProcess": {
                 "type": "boolean",
                 "description": "Whether subscribing requires a third-party setup step that the connector instance itself cannot perform. Examples: Salesforce requires AWS EventBridge configuration; Gmail requires a Google Pub/Sub topic to be configured. Any configuration that must happen outside the connector falls into post-process."
+              },
+              "subscribeByAPI": {
+                "type": "boolean",
+                "description": "Whether the provider supports programmatic subscription via API. If false, provider may still support webhooks via manual configuration in UI. "
               }
             }
           }
@@ -2360,6 +2368,10 @@
               "postProcess": {
                 "type": "boolean",
                 "description": "Whether subscribing requires a third-party setup step that the connector instance itself cannot perform. Examples: Salesforce requires AWS EventBridge configuration; Gmail requires a Google Pub/Sub topic to be configured. Any configuration that must happen outside the connector falls into post-process."
+              },
+              "subscribeByAPI": {
+                "type": "boolean",
+                "description": "Whether the provider supports programmatic subscription via API. If false, provider may still support webhooks via manual configuration in UI. "
               }
             }
           },
@@ -2596,6 +2608,10 @@
                     "postProcess": {
                       "type": "boolean",
                       "description": "Whether subscribing requires a third-party setup step that the connector instance itself cannot perform. Examples: Salesforce requires AWS EventBridge configuration; Gmail requires a Google Pub/Sub topic to be configured. Any configuration that must happen outside the connector falls into post-process."
+                    },
+                    "subscribeByAPI": {
+                      "type": "boolean",
+                      "description": "Whether the provider supports programmatic subscription via API. If false, provider may still support webhooks via manual configuration in UI. "
                     }
                   }
                 }
@@ -3685,6 +3701,10 @@
                     "postProcess": {
                       "type": "boolean",
                       "description": "Whether subscribing requires a third-party setup step that the connector instance itself cannot perform. Examples: Salesforce requires AWS EventBridge configuration; Gmail requires a Google Pub/Sub topic to be configured. Any configuration that must happen outside the connector falls into post-process."
+                    },
+                    "subscribeByAPI": {
+                      "type": "boolean",
+                      "description": "Whether the provider supports programmatic subscription via API. If false, provider may still support webhooks via manual configuration in UI. "
                     }
                   }
                 },
@@ -3921,6 +3941,10 @@
                           "postProcess": {
                             "type": "boolean",
                             "description": "Whether subscribing requires a third-party setup step that the connector instance itself cannot perform. Examples: Salesforce requires AWS EventBridge configuration; Gmail requires a Google Pub/Sub topic to be configured. Any configuration that must happen outside the connector falls into post-process."
+                          },
+                          "subscribeByAPI": {
+                            "type": "boolean",
+                            "description": "Whether the provider supports programmatic subscription via API. If false, provider may still support webhooks via manual configuration in UI. "
                           }
                         }
                       }
@@ -4888,6 +4912,10 @@
                 "postProcess": {
                   "type": "boolean",
                   "description": "Whether subscribing requires a third-party setup step that the connector instance itself cannot perform. Examples: Salesforce requires AWS EventBridge configuration; Gmail requires a Google Pub/Sub topic to be configured. Any configuration that must happen outside the connector falls into post-process."
+                },
+                "subscribeByAPI": {
+                  "type": "boolean",
+                  "description": "Whether the provider supports programmatic subscription via API. If false, provider may still support webhooks via manual configuration in UI. "
                 }
               }
             },
@@ -5124,6 +5152,10 @@
                       "postProcess": {
                         "type": "boolean",
                         "description": "Whether subscribing requires a third-party setup step that the connector instance itself cannot perform. Examples: Salesforce requires AWS EventBridge configuration; Gmail requires a Google Pub/Sub topic to be configured. Any configuration that must happen outside the connector falls into post-process."
+                      },
+                      "subscribeByAPI": {
+                        "type": "boolean",
+                        "description": "Whether the provider supports programmatic subscription via API. If false, provider may still support webhooks via manual configuration in UI. "
                       }
                     }
                   }
@@ -5364,6 +5396,10 @@
           "postProcess": {
             "type": "boolean",
             "description": "Whether subscribing requires a third-party setup step that the connector instance itself cannot perform. Examples: Salesforce requires AWS EventBridge configuration; Gmail requires a Google Pub/Sub topic to be configured. Any configuration that must happen outside the connector falls into post-process."
+          },
+          "subscribeByAPI": {
+            "type": "boolean",
+            "description": "Whether the provider supports programmatic subscription via API. If false, provider may still support webhooks via manual configuration in UI. "
           }
         }
       },