diff --git a/Library/Homebrew/formula.rb b/Library/Homebrew/formula.rb
index 1aad266d51..10d7fd3ca4 100644
--- a/Library/Homebrew/formula.rb
+++ b/Library/Homebrew/formula.rb
@@ -2704,6 +2704,10 @@ class Formula
       super
     end
 
+    # Whether this formula was loaded using the formulae.brew.sh API
+    # @private
+    attr_accessor :loaded_from_api
+
     # Whether this formula contains OS/arch-specific blocks
     # (e.g. `on_macos`, `on_arm`, `on_monterey :or_older`, `on_system :linux, macos: :big_sur_or_newer`).
     # @private
diff --git a/Library/Homebrew/formula_installer.rb b/Library/Homebrew/formula_installer.rb
index 5b5918c019..b375f8dfc0 100644
--- a/Library/Homebrew/formula_installer.rb
+++ b/Library/Homebrew/formula_installer.rb
@@ -1202,6 +1202,7 @@ class FormulaInstaller
     tab.unused_options = []
     tab.built_as_bottle = true
     tab.poured_from_bottle = true
+    tab.loaded_from_api = formula.class.loaded_from_api
     tab.installed_as_dependency = installed_as_dependency?
     tab.installed_on_request = installed_on_request?
     tab.time = Time.now.to_i
diff --git a/Library/Homebrew/formulary.rb b/Library/Homebrew/formulary.rb
index 9c5761ce4d..a043518bb0 100644
--- a/Library/Homebrew/formulary.rb
+++ b/Library/Homebrew/formulary.rb
@@ -217,6 +217,7 @@ module Formulary
       end
     end
 
+    klass.loaded_from_api = true
     mod.const_set(class_s, klass)
 
     cache[:api] ||= {}
diff --git a/Library/Homebrew/tab.rb b/Library/Homebrew/tab.rb
index 8dba8022f6..06a0152de5 100644
--- a/Library/Homebrew/tab.rb
+++ b/Library/Homebrew/tab.rb
@@ -31,6 +31,7 @@ class Tab < OpenStruct
       "installed_as_dependency" => false,
       "installed_on_request"    => false,
       "poured_from_bottle"      => false,
+      "loaded_from_api"         => false,
       "time"                    => Time.now.to_i,
       "source_modified_time"    => formula.source_modified_time.to_i,
       "compiler"                => compiler,
@@ -189,6 +190,7 @@ class Tab < OpenStruct
       "installed_as_dependency" => false,
       "installed_on_request"    => false,
       "poured_from_bottle"      => false,
+      "loaded_from_api"         => false,
       "time"                    => nil,
       "source_modified_time"    => 0,
       "stdlib"                  => nil,
@@ -332,6 +334,7 @@ class Tab < OpenStruct
       "unused_options"          => unused_options.as_flags,
       "built_as_bottle"         => built_as_bottle,
       "poured_from_bottle"      => poured_from_bottle,
+      "loaded_from_api"         => loaded_from_api,
       "installed_as_dependency" => installed_as_dependency,
       "installed_on_request"    => installed_on_request,
       "changed_files"           => changed_files&.map(&:to_s),
@@ -384,6 +387,7 @@ class Tab < OpenStruct
       "Built from source"
     end
 
+    s << "using the formulae.brew.sh API" if loaded_from_api
     s << Time.at(time).strftime("on %Y-%m-%d at %H:%M:%S") if time
 
     unless used_options.empty?