diff --git a/Library/Homebrew/cask/cask.rb b/Library/Homebrew/cask/cask.rb
index 81345e90e9..99d124347e 100644
--- a/Library/Homebrew/cask/cask.rb
+++ b/Library/Homebrew/cask/cask.rb
@@ -359,7 +359,7 @@ module Cask
     end
 
     # @private
-    def to_api_hash
+    def to_internal_api_hash
       api_hash = {
         "token"              => token,
         "name"               => name,
@@ -408,7 +408,7 @@ module Cask
         if loaded_from_api? && !Homebrew::EnvConfig.no_install_from_api?
           return api_to_local_hash(Homebrew::API::Cask.all_casks[token].dup)
         end
-      when :to_api_hash
+      when :to_internal_api_hash
         raise ArgumentError, "API Hash must be generated from Ruby source files" if loaded_from_api?
       else
         raise ArgumentError, "Unknown hash method #{hash_method.inspect}"
@@ -440,7 +440,7 @@ module Cask
         end
       end
 
-      hash["variations"] = variations if hash_method != :to_api_hash || variations.present?
+      hash["variations"] = variations if hash_method != :to_internal_api_hash || variations.present?
       hash
     end
 
diff --git a/Library/Homebrew/dev-cmd/generate-cask-api.rb b/Library/Homebrew/dev-cmd/generate-cask-api.rb
index b61e871d22..61f2ab8403 100644
--- a/Library/Homebrew/dev-cmd/generate-cask-api.rb
+++ b/Library/Homebrew/dev-cmd/generate-cask-api.rb
@@ -75,7 +75,7 @@ module Homebrew
         raise
       end
 
-      homebrew_cask_tap_json = JSON.generate(tap.to_api_hash)
+      homebrew_cask_tap_json = JSON.generate(tap.to_internal_api_hash)
       File.write("api/internal/v3/homebrew-cask.json", homebrew_cask_tap_json) unless args.dry_run?
     end
   end
diff --git a/Library/Homebrew/dev-cmd/generate-formula-api.rb b/Library/Homebrew/dev-cmd/generate-formula-api.rb
index 9926fd04f5..9c7f30548a 100644
--- a/Library/Homebrew/dev-cmd/generate-formula-api.rb
+++ b/Library/Homebrew/dev-cmd/generate-formula-api.rb
@@ -74,7 +74,7 @@ module Homebrew
         raise
       end
 
-      homebrew_core_tap_json = JSON.generate(tap.to_api_hash)
+      homebrew_core_tap_json = JSON.generate(tap.to_internal_api_hash)
       File.write("api/internal/v3/homebrew-core.json", homebrew_core_tap_json) unless args.dry_run?
       canonical_json = JSON.pretty_generate(tap.formula_renames.merge(tap.alias_table))
       File.write("_data/formula_canonical.json", "#{canonical_json}\n") unless args.dry_run?
diff --git a/Library/Homebrew/formula.rb b/Library/Homebrew/formula.rb
index a85092d7c8..809a62abd5 100644
--- a/Library/Homebrew/formula.rb
+++ b/Library/Homebrew/formula.rb
@@ -2293,7 +2293,7 @@ class Formula
   end
 
   # @private
-  def to_api_hash
+  def to_internal_api_hash
     api_hash = {
       "desc"                 => desc,
       "license"              => SPDX.license_expression_to_string(license),
@@ -2356,14 +2356,14 @@ class Formula
 
   # @private
   def to_hash_with_variations(hash_method: :to_hash)
-    if loaded_from_api? && hash_method == :to_api_hash
+    if loaded_from_api? && hash_method == :to_internal_api_hash
       raise ArgumentError, "API Hash must be generated from Ruby source files"
     end
 
     namespace_prefix = case hash_method
     when :to_hash
       "Variations"
-    when :to_api_hash
+    when :to_internal_api_hash
       "APIVariations"
     else
       raise ArgumentError, "Unknown hash method #{hash_method.inspect}"
@@ -2404,7 +2404,7 @@ class Formula
       end
     end
 
-    hash["variations"] = variations if hash_method != :to_api_hash || variations.present?
+    hash["variations"] = variations if hash_method != :to_internal_api_hash || variations.present?
     hash
   end
 
diff --git a/Library/Homebrew/tap.rb b/Library/Homebrew/tap.rb
index 0147b40dcd..2675412097 100644
--- a/Library/Homebrew/tap.rb
+++ b/Library/Homebrew/tap.rb
@@ -1286,10 +1286,10 @@ class CoreTap < AbstractCoreTap
   end
 
   sig { returns(T::Hash[String, T.untyped]) }
-  def to_api_hash
+  def to_internal_api_hash
     formulae_api_hash = formula_names.to_h do |name|
       formula = Formulary.factory(name)
-      formula_hash = formula.to_hash_with_variations(hash_method: :to_api_hash)
+      formula_hash = formula.to_hash_with_variations(hash_method: :to_internal_api_hash)
       [name, formula_hash]
     end
 
@@ -1372,10 +1372,10 @@ class CoreCaskTap < AbstractCoreTap
   end
 
   sig { returns(T::Hash[String, T.untyped]) }
-  def to_api_hash
+  def to_internal_api_hash
     casks_api_hash = cask_tokens.to_h do |token|
       cask = Cask::CaskLoader.load(token)
-      cask_hash = cask.to_hash_with_variations(hash_method: :to_api_hash)
+      cask_hash = cask.to_hash_with_variations(hash_method: :to_internal_api_hash)
       [token, cask_hash]
     end
 
diff --git a/Library/Homebrew/test/api/internal_tap_json/formula_spec.rb b/Library/Homebrew/test/api/internal_tap_json/formula_spec.rb
index 550036d6e0..fe5ebf47a9 100644
--- a/Library/Homebrew/test/api/internal_tap_json/formula_spec.rb
+++ b/Library/Homebrew/test/api/internal_tap_json/formula_spec.rb
@@ -17,7 +17,7 @@ RSpec.describe "Internal Tap JSON -- Formula" do
     end
 
     it "creates the expected hash" do
-      api_hash = CoreTap.instance.to_api_hash
+      api_hash = CoreTap.instance.to_internal_api_hash
       api_hash["tap_git_head"] = tap_git_head # tricky to mock
 
       expect(JSON.pretty_generate(api_hash)).to eq(internal_tap_json)