diff --git a/elasticsearch-api/lib/elasticsearch/api/actions/indices/get_data_stream_settings.rb b/elasticsearch-api/lib/elasticsearch/api/actions/indices/get_data_stream_settings.rb
new file mode 100644
index 0000000000..f6dd7b6331
--- /dev/null
+++ b/elasticsearch-api/lib/elasticsearch/api/actions/indices/get_data_stream_settings.rb
@@ -0,0 +1,61 @@
+# Licensed to Elasticsearch B.V. under one or more contributor
+# license agreements. See the NOTICE file distributed with
+# this work for additional information regarding copyright
+# ownership. Elasticsearch B.V. licenses this file to you under
+# the Apache License, Version 2.0 (the "License"); you may
+# not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#   http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
+#
+# Auto generated from build hash f284cc16f4d4b4289bc679aa1529bb504190fe80
+# @see https://github.com/elastic/elasticsearch/tree/main/rest-api-spec
+#
+module Elasticsearch
+  module API
+    module Indices
+      module Actions
+        # Gets a data stream's settings
+        #
+        # @option arguments [String] :name Comma-separated list of data streams or data stream patterns
+        # @option arguments [Time] :master_timeout Period to wait for a connection to the master node
+        # @option arguments [Hash] :headers Custom HTTP headers
+        #
+        # @see https://www.elastic.co/guide/en/elasticsearch/reference/8.18/data-streams.html
+        #
+        def get_data_stream_settings(arguments = {})
+          request_opts = { endpoint: arguments[:endpoint] || 'indices.get_data_stream_settings' }
+
+          defined_params = [:name].each_with_object({}) do |variable, set_variables|
+            set_variables[variable] = arguments[variable] if arguments.key?(variable)
+          end
+          request_opts[:defined_params] = defined_params unless defined_params.empty?
+
+          raise ArgumentError, "Required argument 'name' missing" unless arguments[:name]
+
+          arguments = arguments.clone
+          headers = arguments.delete(:headers) || {}
+
+          body = nil
+
+          _name = arguments.delete(:name)
+
+          method = Elasticsearch::API::HTTP_GET
+          path   = "_data_stream/#{Utils.__listify(_name)}/_settings"
+          params = Utils.process_params(arguments)
+
+          Elasticsearch::API::Response.new(
+            perform_request(method, path, params, body, headers, request_opts)
+          )
+        end
+      end
+    end
+  end
+end
diff --git a/elasticsearch-api/lib/elasticsearch/api/actions/indices/put_data_stream_settings.rb b/elasticsearch-api/lib/elasticsearch/api/actions/indices/put_data_stream_settings.rb
new file mode 100644
index 0000000000..6ace297571
--- /dev/null
+++ b/elasticsearch-api/lib/elasticsearch/api/actions/indices/put_data_stream_settings.rb
@@ -0,0 +1,65 @@
+# Licensed to Elasticsearch B.V. under one or more contributor
+# license agreements. See the NOTICE file distributed with
+# this work for additional information regarding copyright
+# ownership. Elasticsearch B.V. licenses this file to you under
+# the Apache License, Version 2.0 (the "License"); you may
+# not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#   http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
+#
+# Auto generated from build hash f284cc16f4d4b4289bc679aa1529bb504190fe80
+# @see https://github.com/elastic/elasticsearch/tree/main/rest-api-spec
+#
+module Elasticsearch
+  module API
+    module Indices
+      module Actions
+        # Updates a data stream's settings
+        #
+        # @option arguments [String] :name Comma-separated list of data streams or data stream patterns
+        # @option arguments [Boolean] :dry_run Whether this request should only be a dry run rather than actually applying settings
+        # @option arguments [Time] :timeout Period to wait for a response
+        # @option arguments [Time] :master_timeout Period to wait for a connection to the master node
+        # @option arguments [Hash] :headers Custom HTTP headers
+        # @option arguments [Hash] :body The data stream settings to be updated (*Required*)
+        #
+        # @see https://www.elastic.co/guide/en/elasticsearch/reference/8.18/data-streams.html
+        #
+        def put_data_stream_settings(arguments = {})
+          request_opts = { endpoint: arguments[:endpoint] || 'indices.put_data_stream_settings' }
+
+          defined_params = [:name].each_with_object({}) do |variable, set_variables|
+            set_variables[variable] = arguments[variable] if arguments.key?(variable)
+          end
+          request_opts[:defined_params] = defined_params unless defined_params.empty?
+
+          raise ArgumentError, "Required argument 'body' missing" unless arguments[:body]
+          raise ArgumentError, "Required argument 'name' missing" unless arguments[:name]
+
+          arguments = arguments.clone
+          headers = arguments.delete(:headers) || {}
+
+          body = arguments.delete(:body)
+
+          _name = arguments.delete(:name)
+
+          method = Elasticsearch::API::HTTP_PUT
+          path   = "_data_stream/#{Utils.__listify(_name)}/_settings"
+          params = Utils.process_params(arguments)
+
+          Elasticsearch::API::Response.new(
+            perform_request(method, path, params, body, headers, request_opts)
+          )
+        end
+      end
+    end
+  end
+end
diff --git a/elasticsearch-api/spec/elasticsearch/api/actions/indices/get_data_stream_settings_spec.rb b/elasticsearch-api/spec/elasticsearch/api/actions/indices/get_data_stream_settings_spec.rb
new file mode 100644
index 0000000000..4fa6057618
--- /dev/null
+++ b/elasticsearch-api/spec/elasticsearch/api/actions/indices/get_data_stream_settings_spec.rb
@@ -0,0 +1,37 @@
+# Licensed to Elasticsearch B.V. under one or more contributor
+# license agreements. See the NOTICE file distributed with
+# this work for additional information regarding copyright
+# ownership. Elasticsearch B.V. licenses this file to you under
+# the Apache License, Version 2.0 (the "License"); you may
+# not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#   http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
+
+require 'spec_helper'
+
+describe 'client.indices.get_data_stream_settings' do
+  let(:expected_args) do
+    [
+      'GET',
+      '_data_stream/foo/_settings',
+      {},
+      nil,
+      {},
+      { endpoint: 'indices.get_data_stream_settings', defined_params: { name: 'foo' } }
+    ]
+  end
+
+  let(:index) { 'foo' }
+
+  it 'performs the request' do
+    expect(client_double.indices.get_data_stream_settings(name: 'foo')).to be_a Elasticsearch::API::Response
+  end
+end
diff --git a/elasticsearch-api/spec/elasticsearch/api/actions/indices/put_data_stream_settings_spec.rb b/elasticsearch-api/spec/elasticsearch/api/actions/indices/put_data_stream_settings_spec.rb
new file mode 100644
index 0000000000..cfcd169e01
--- /dev/null
+++ b/elasticsearch-api/spec/elasticsearch/api/actions/indices/put_data_stream_settings_spec.rb
@@ -0,0 +1,35 @@
+# Licensed to Elasticsearch B.V. under one or more contributor
+# license agreements. See the NOTICE file distributed with
+# this work for additional information regarding copyright
+# ownership. Elasticsearch B.V. licenses this file to you under
+# the Apache License, Version 2.0 (the "License"); you may
+# not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#   http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
+
+require 'spec_helper'
+
+describe 'client.indices#put_data_stream_settings' do
+  let(:expected_args) do
+    [
+      'PUT',
+      '_data_stream/foo/_settings',
+      {},
+      {},
+      {},
+      { endpoint: 'indices.put_data_stream_settings', defined_params: { name: 'foo' } }
+    ]
+  end
+
+  it 'performs the request' do
+    expect(client_double.indices.put_data_stream_settings(name: 'foo', body: {})).to be_a Elasticsearch::API::Response
+  end
+end