diff --git a/.release-please-manifest.json b/.release-please-manifest.json
index df3aaa16a..33a65d75c 100644
--- a/.release-please-manifest.json
+++ b/.release-please-manifest.json
@@ -1,3 +1,3 @@
 {
-  ".": "1.76.0"
+  ".": "1.77.0"
 }
\ No newline at end of file
diff --git a/.stats.yml b/.stats.yml
index 3b8e65cd7..c27c54482 100644
--- a/.stats.yml
+++ b/.stats.yml
@@ -1,4 +1,4 @@
 configured_endpoints: 217
-openapi_spec_url: https://storage.googleapis.com/stainless-sdk-openapi-specs/increase%2Fincrease-805a499f2eaf8dde9967c23bfceac96d22e583e929be7e62574442f1b2546844.yml
-openapi_spec_hash: 362e3065076f1f47f73ed7306236b5f6
+openapi_spec_url: https://storage.googleapis.com/stainless-sdk-openapi-specs/increase%2Fincrease-e81b9b39563d895c47a1eceb9fd7cac6bc3f8e6f21c57c1d01ae2cdf360b73ce.yml
+openapi_spec_hash: 9eee6e29a9d53623d380e8afae9ef482
 config_hash: e1885b38eded054b77308a024c5d80cc
diff --git a/CHANGELOG.md b/CHANGELOG.md
index f044142e9..9fc8f02e5 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,13 @@
 # Changelog
 
+## 1.77.0 (2025-09-16)
+
+Full Changelog: [v1.76.0...v1.77.0](https://github.com/Increase/increase-ruby/compare/v1.76.0...v1.77.0)
+
+### Features
+
+* **api:** api update ([a8e931a](https://github.com/Increase/increase-ruby/commit/a8e931a8673e9c3899021b4de1ea21300d6435ac))
+
 ## 1.76.0 (2025-09-15)
 
 Full Changelog: [v1.75.0...v1.76.0](https://github.com/Increase/increase-ruby/compare/v1.75.0...v1.76.0)
diff --git a/Gemfile.lock b/Gemfile.lock
index 1a49f86e4..a39db1b77 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -11,7 +11,7 @@ GIT
 PATH
   remote: .
   specs:
-    increase (1.76.0)
+    increase (1.77.0)
       connection_pool
 
 GEM
diff --git a/README.md b/README.md
index fac6aad91..e85cf247d 100644
--- a/README.md
+++ b/README.md
@@ -15,7 +15,7 @@ To use this gem, install via Bundler by adding the following to your application
 <!-- x-release-please-start-version -->
 
 ```ruby
-gem "increase", "~> 1.76.0"
+gem "increase", "~> 1.77.0"
 ```
 
 <!-- x-release-please-end -->
diff --git a/lib/increase/models/event.rb b/lib/increase/models/event.rb
index 4e451f73c..638228f60 100644
--- a/lib/increase/models/event.rb
+++ b/lib/increase/models/event.rb
@@ -190,6 +190,12 @@ module Category
         # Occurs whenever an External Account is updated.
         EXTERNAL_ACCOUNT_UPDATED = :"external_account.updated"
 
+        # Occurs whenever a FedNow Transfer is created.
+        FEDNOW_TRANSFER_CREATED = :"fednow_transfer.created"
+
+        # Occurs whenever a FedNow Transfer is updated.
+        FEDNOW_TRANSFER_UPDATED = :"fednow_transfer.updated"
+
         # Occurs whenever a File is created.
         FILE_CREATED = :"file.created"
 
diff --git a/lib/increase/models/event_list_params.rb b/lib/increase/models/event_list_params.rb
index f58b11956..5b138bdeb 100644
--- a/lib/increase/models/event_list_params.rb
+++ b/lib/increase/models/event_list_params.rb
@@ -192,6 +192,12 @@ module In
           # Occurs whenever an External Account is updated.
           EXTERNAL_ACCOUNT_UPDATED = :"external_account.updated"
 
+          # Occurs whenever a FedNow Transfer is created.
+          FEDNOW_TRANSFER_CREATED = :"fednow_transfer.created"
+
+          # Occurs whenever a FedNow Transfer is updated.
+          FEDNOW_TRANSFER_UPDATED = :"fednow_transfer.updated"
+
           # Occurs whenever a File is created.
           FILE_CREATED = :"file.created"
 
diff --git a/lib/increase/models/event_subscription.rb b/lib/increase/models/event_subscription.rb
index cb8a05d3e..3b7488ebf 100644
--- a/lib/increase/models/event_subscription.rb
+++ b/lib/increase/models/event_subscription.rb
@@ -213,6 +213,12 @@ module SelectedEventCategory
         # Occurs whenever an External Account is updated.
         EXTERNAL_ACCOUNT_UPDATED = :"external_account.updated"
 
+        # Occurs whenever a FedNow Transfer is created.
+        FEDNOW_TRANSFER_CREATED = :"fednow_transfer.created"
+
+        # Occurs whenever a FedNow Transfer is updated.
+        FEDNOW_TRANSFER_UPDATED = :"fednow_transfer.updated"
+
         # Occurs whenever a File is created.
         FILE_CREATED = :"file.created"
 
diff --git a/lib/increase/models/event_subscription_create_params.rb b/lib/increase/models/event_subscription_create_params.rb
index a00fba694..63f89a706 100644
--- a/lib/increase/models/event_subscription_create_params.rb
+++ b/lib/increase/models/event_subscription_create_params.rb
@@ -174,6 +174,12 @@ module SelectedEventCategory
         # Occurs whenever an External Account is updated.
         EXTERNAL_ACCOUNT_UPDATED = :"external_account.updated"
 
+        # Occurs whenever a FedNow Transfer is created.
+        FEDNOW_TRANSFER_CREATED = :"fednow_transfer.created"
+
+        # Occurs whenever a FedNow Transfer is updated.
+        FEDNOW_TRANSFER_UPDATED = :"fednow_transfer.updated"
+
         # Occurs whenever a File is created.
         FILE_CREATED = :"file.created"
 
diff --git a/lib/increase/version.rb b/lib/increase/version.rb
index ed4c4dc57..735a1ff71 100644
--- a/lib/increase/version.rb
+++ b/lib/increase/version.rb
@@ -1,5 +1,5 @@
 # frozen_string_literal: true
 
 module Increase
-  VERSION = "1.76.0"
+  VERSION = "1.77.0"
 end
diff --git a/rbi/increase/models/event.rbi b/rbi/increase/models/event.rbi
index 8952ed0e7..98bdff2a9 100644
--- a/rbi/increase/models/event.rbi
+++ b/rbi/increase/models/event.rbi
@@ -340,6 +340,20 @@ module Increase
             Increase::Event::Category::TaggedSymbol
           )
 
+        # Occurs whenever a FedNow Transfer is created.
+        FEDNOW_TRANSFER_CREATED =
+          T.let(
+            :"fednow_transfer.created",
+            Increase::Event::Category::TaggedSymbol
+          )
+
+        # Occurs whenever a FedNow Transfer is updated.
+        FEDNOW_TRANSFER_UPDATED =
+          T.let(
+            :"fednow_transfer.updated",
+            Increase::Event::Category::TaggedSymbol
+          )
+
         # Occurs whenever a File is created.
         FILE_CREATED =
           T.let(:"file.created", Increase::Event::Category::TaggedSymbol)
diff --git a/rbi/increase/models/event_list_params.rbi b/rbi/increase/models/event_list_params.rbi
index ac4347158..3a9fd85bb 100644
--- a/rbi/increase/models/event_list_params.rbi
+++ b/rbi/increase/models/event_list_params.rbi
@@ -424,6 +424,20 @@ module Increase
               Increase::EventListParams::Category::In::TaggedSymbol
             )
 
+          # Occurs whenever a FedNow Transfer is created.
+          FEDNOW_TRANSFER_CREATED =
+            T.let(
+              :"fednow_transfer.created",
+              Increase::EventListParams::Category::In::TaggedSymbol
+            )
+
+          # Occurs whenever a FedNow Transfer is updated.
+          FEDNOW_TRANSFER_UPDATED =
+            T.let(
+              :"fednow_transfer.updated",
+              Increase::EventListParams::Category::In::TaggedSymbol
+            )
+
           # Occurs whenever a File is created.
           FILE_CREATED =
             T.let(
diff --git a/rbi/increase/models/event_subscription.rbi b/rbi/increase/models/event_subscription.rbi
index 97fbd00ae..4b3b3915f 100644
--- a/rbi/increase/models/event_subscription.rbi
+++ b/rbi/increase/models/event_subscription.rbi
@@ -408,6 +408,20 @@ module Increase
             Increase::EventSubscription::SelectedEventCategory::TaggedSymbol
           )
 
+        # Occurs whenever a FedNow Transfer is created.
+        FEDNOW_TRANSFER_CREATED =
+          T.let(
+            :"fednow_transfer.created",
+            Increase::EventSubscription::SelectedEventCategory::TaggedSymbol
+          )
+
+        # Occurs whenever a FedNow Transfer is updated.
+        FEDNOW_TRANSFER_UPDATED =
+          T.let(
+            :"fednow_transfer.updated",
+            Increase::EventSubscription::SelectedEventCategory::TaggedSymbol
+          )
+
         # Occurs whenever a File is created.
         FILE_CREATED =
           T.let(
diff --git a/rbi/increase/models/event_subscription_create_params.rbi b/rbi/increase/models/event_subscription_create_params.rbi
index 942daf96d..e0b29d5c3 100644
--- a/rbi/increase/models/event_subscription_create_params.rbi
+++ b/rbi/increase/models/event_subscription_create_params.rbi
@@ -388,6 +388,20 @@ module Increase
             Increase::EventSubscriptionCreateParams::SelectedEventCategory::TaggedSymbol
           )
 
+        # Occurs whenever a FedNow Transfer is created.
+        FEDNOW_TRANSFER_CREATED =
+          T.let(
+            :"fednow_transfer.created",
+            Increase::EventSubscriptionCreateParams::SelectedEventCategory::TaggedSymbol
+          )
+
+        # Occurs whenever a FedNow Transfer is updated.
+        FEDNOW_TRANSFER_UPDATED =
+          T.let(
+            :"fednow_transfer.updated",
+            Increase::EventSubscriptionCreateParams::SelectedEventCategory::TaggedSymbol
+          )
+
         # Occurs whenever a File is created.
         FILE_CREATED =
           T.let(
diff --git a/sig/increase/models/event.rbs b/sig/increase/models/event.rbs
index 68b0abddc..0fbf3a737 100644
--- a/sig/increase/models/event.rbs
+++ b/sig/increase/models/event.rbs
@@ -82,6 +82,8 @@ module Increase
         | :"export.updated"
         | :"external_account.created"
         | :"external_account.updated"
+        | :"fednow_transfer.created"
+        | :"fednow_transfer.updated"
         | :"file.created"
         | :"group.updated"
         | :"group.heartbeat"
@@ -266,6 +268,12 @@ module Increase
         # Occurs whenever an External Account is updated.
         EXTERNAL_ACCOUNT_UPDATED: :"external_account.updated"
 
+        # Occurs whenever a FedNow Transfer is created.
+        FEDNOW_TRANSFER_CREATED: :"fednow_transfer.created"
+
+        # Occurs whenever a FedNow Transfer is updated.
+        FEDNOW_TRANSFER_UPDATED: :"fednow_transfer.updated"
+
         # Occurs whenever a File is created.
         FILE_CREATED: :"file.created"
 
diff --git a/sig/increase/models/event_list_params.rbs b/sig/increase/models/event_list_params.rbs
index cf1eb9231..0812e66fe 100644
--- a/sig/increase/models/event_list_params.rbs
+++ b/sig/increase/models/event_list_params.rbs
@@ -115,6 +115,8 @@ module Increase
           | :"export.updated"
           | :"external_account.created"
           | :"external_account.updated"
+          | :"fednow_transfer.created"
+          | :"fednow_transfer.updated"
           | :"file.created"
           | :"group.updated"
           | :"group.heartbeat"
@@ -299,6 +301,12 @@ module Increase
           # Occurs whenever an External Account is updated.
           EXTERNAL_ACCOUNT_UPDATED: :"external_account.updated"
 
+          # Occurs whenever a FedNow Transfer is created.
+          FEDNOW_TRANSFER_CREATED: :"fednow_transfer.created"
+
+          # Occurs whenever a FedNow Transfer is updated.
+          FEDNOW_TRANSFER_UPDATED: :"fednow_transfer.updated"
+
           # Occurs whenever a File is created.
           FILE_CREATED: :"file.created"
 
diff --git a/sig/increase/models/event_subscription.rbs b/sig/increase/models/event_subscription.rbs
index 5896dea80..43efa81f9 100644
--- a/sig/increase/models/event_subscription.rbs
+++ b/sig/increase/models/event_subscription.rbs
@@ -92,6 +92,8 @@ module Increase
         | :"export.updated"
         | :"external_account.created"
         | :"external_account.updated"
+        | :"fednow_transfer.created"
+        | :"fednow_transfer.updated"
         | :"file.created"
         | :"group.updated"
         | :"group.heartbeat"
@@ -276,6 +278,12 @@ module Increase
         # Occurs whenever an External Account is updated.
         EXTERNAL_ACCOUNT_UPDATED: :"external_account.updated"
 
+        # Occurs whenever a FedNow Transfer is created.
+        FEDNOW_TRANSFER_CREATED: :"fednow_transfer.created"
+
+        # Occurs whenever a FedNow Transfer is updated.
+        FEDNOW_TRANSFER_UPDATED: :"fednow_transfer.updated"
+
         # Occurs whenever a File is created.
         FILE_CREATED: :"file.created"
 
diff --git a/sig/increase/models/event_subscription_create_params.rbs b/sig/increase/models/event_subscription_create_params.rbs
index 281fac8fa..077714dab 100644
--- a/sig/increase/models/event_subscription_create_params.rbs
+++ b/sig/increase/models/event_subscription_create_params.rbs
@@ -86,6 +86,8 @@ module Increase
         | :"export.updated"
         | :"external_account.created"
         | :"external_account.updated"
+        | :"fednow_transfer.created"
+        | :"fednow_transfer.updated"
         | :"file.created"
         | :"group.updated"
         | :"group.heartbeat"
@@ -270,6 +272,12 @@ module Increase
         # Occurs whenever an External Account is updated.
         EXTERNAL_ACCOUNT_UPDATED: :"external_account.updated"
 
+        # Occurs whenever a FedNow Transfer is created.
+        FEDNOW_TRANSFER_CREATED: :"fednow_transfer.created"
+
+        # Occurs whenever a FedNow Transfer is updated.
+        FEDNOW_TRANSFER_UPDATED: :"fednow_transfer.updated"
+
         # Occurs whenever a File is created.
         FILE_CREATED: :"file.created"