diff --git a/lib/recombee_api_client.rb b/lib/recombee_api_client.rb
index 979678b..582f3de 100644
--- a/lib/recombee_api_client.rb
+++ b/lib/recombee_api_client.rb
@@ -18,7 +18,7 @@ class RecombeeClient
     include HTTParty
 
     BATCH_MAX_SIZE = 10000
-    USER_AGENT = {'User-Agent' => 'recombee-ruby-api-client/3.1.0'}
+    USER_AGENT = {'User-Agent' => 'recombee-ruby-api-client/3.2.0'}
 
     ##
     #   - +account+ -> Name of your account at Recombee
diff --git a/lib/recombee_api_client/api/add_search_synonym.rb b/lib/recombee_api_client/api/add_search_synonym.rb
new file mode 100644
index 0000000..505a77b
--- /dev/null
+++ b/lib/recombee_api_client/api/add_search_synonym.rb
@@ -0,0 +1,72 @@
+#
+# This file is auto-generated, do not edit
+#
+
+module RecombeeApiClient
+  require_relative 'request'
+  require_relative '../errors'
+  
+  ##
+  #Adds a new synonym for the [Search items](https://docs.recombee.com/api.html#search-items).
+  #
+  #When the `term` is used in the search query, the `synonym` is also used for the full-text search.
+  #Unless `oneWay=true`, it works also in the opposite way (`synonym` -> `term`).
+  #
+  #An example of a synonym can be `science fiction` for the term `sci-fi`.
+  #
+  class AddSearchSynonym < ApiRequest
+    attr_reader :term, :synonym, :one_way
+    attr_accessor :timeout
+    attr_accessor :ensure_https
+  
+  ##
+  # * *Required arguments*
+  #   - +term+ -> A word to which the `synonym` is specified.
+  #   - +synonym+ -> A word that should be considered equal to the `term` by the full-text search engine.
+  #
+  # * *Optional arguments (given as hash optional)*
+  #   - +oneWay+ -> If set to `true`, only `term` -> `synonym` is considered. If set to `false`, also `synonym` -> `term` works.
+  #
+  #Default: `false`.
+  #
+  #
+    def initialize(term, synonym, optional = {})
+      @term = term
+      @synonym = synonym
+      optional = normalize_optional(optional)
+      @one_way = optional['oneWay']
+      @optional = optional
+      @timeout = 10000
+      @ensure_https = false
+      @optional.each do |par, _|
+        fail UnknownOptionalParameter.new(par) unless ["oneWay"].include? par
+      end
+    end
+  
+    # HTTP method
+    def method
+      :post
+    end
+  
+    # Values of body parameters as a Hash
+    def body_parameters
+      p = Hash.new
+      p['term'] = @term
+      p['synonym'] = @synonym
+      p['oneWay'] = @optional['oneWay'] if @optional.include? 'oneWay'
+      p
+    end
+  
+    # Values of query parameters as a Hash.
+    # name of parameter => value of the parameter
+    def query_parameters
+      params = {}
+      params
+    end
+  
+    # Relative path to the endpoint
+    def path
+      "/{databaseId}/synonyms/items/"
+    end
+  end
+end
diff --git a/lib/recombee_api_client/api/delete_all_search_synonyms.rb b/lib/recombee_api_client/api/delete_all_search_synonyms.rb
new file mode 100644
index 0000000..5c4bc74
--- /dev/null
+++ b/lib/recombee_api_client/api/delete_all_search_synonyms.rb
@@ -0,0 +1,47 @@
+#
+# This file is auto-generated, do not edit
+#
+
+module RecombeeApiClient
+  require_relative 'request'
+  require_relative '../errors'
+  
+  ##
+  #Deletes all synonyms defined in the database.
+  #
+  class DeleteAllSearchSynonyms < ApiRequest
+  
+    attr_accessor :timeout
+    attr_accessor :ensure_https
+  
+  ##
+  #
+    def initialize()
+      @timeout = 10000
+      @ensure_https = false
+    end
+  
+    # HTTP method
+    def method
+      :delete
+    end
+  
+    # Values of body parameters as a Hash
+    def body_parameters
+      p = Hash.new
+      p
+    end
+  
+    # Values of query parameters as a Hash.
+    # name of parameter => value of the parameter
+    def query_parameters
+      params = {}
+      params
+    end
+  
+    # Relative path to the endpoint
+    def path
+      "/{databaseId}/synonyms/items/"
+    end
+  end
+end
diff --git a/lib/recombee_api_client/api/delete_search_synonym.rb b/lib/recombee_api_client/api/delete_search_synonym.rb
new file mode 100644
index 0000000..634aeec
--- /dev/null
+++ b/lib/recombee_api_client/api/delete_search_synonym.rb
@@ -0,0 +1,50 @@
+#
+# This file is auto-generated, do not edit
+#
+
+module RecombeeApiClient
+  require_relative 'request'
+  require_relative '../errors'
+  
+  ##
+  #Deletes synonym of given `id` and this synonym is no longer taken into account in the [Search items](https://docs.recombee.com/api.html#search-items).
+  #
+  class DeleteSearchSynonym < ApiRequest
+    attr_reader :id
+    attr_accessor :timeout
+    attr_accessor :ensure_https
+  
+  ##
+  # * *Required arguments*
+  #   - +id+ -> ID of the synonym that should be deleted.
+  #
+    def initialize(id)
+      @id = id
+      @timeout = 10000
+      @ensure_https = false
+    end
+  
+    # HTTP method
+    def method
+      :delete
+    end
+  
+    # Values of body parameters as a Hash
+    def body_parameters
+      p = Hash.new
+      p
+    end
+  
+    # Values of query parameters as a Hash.
+    # name of parameter => value of the parameter
+    def query_parameters
+      params = {}
+      params
+    end
+  
+    # Relative path to the endpoint
+    def path
+      "/{databaseId}/synonyms/items/#{@id}"
+    end
+  end
+end
diff --git a/lib/recombee_api_client/api/list_search_synonyms.rb b/lib/recombee_api_client/api/list_search_synonyms.rb
new file mode 100644
index 0000000..e08dc8f
--- /dev/null
+++ b/lib/recombee_api_client/api/list_search_synonyms.rb
@@ -0,0 +1,59 @@
+#
+# This file is auto-generated, do not edit
+#
+
+module RecombeeApiClient
+  require_relative 'request'
+  require_relative '../errors'
+  
+  ##
+  #Gives the list of synonyms defined in the database.
+  class ListSearchSynonyms < ApiRequest
+    attr_reader :count, :offset
+    attr_accessor :timeout
+    attr_accessor :ensure_https
+  
+  ##
+  #
+  # * *Optional arguments (given as hash optional)*
+  #   - +count+ -> The number of synonyms to be listed.
+  #   - +offset+ -> Specifies the number of synonyms to skip (ordered by `term`).
+  #
+    def initialize(optional = {})
+      optional = normalize_optional(optional)
+      @count = optional['count']
+      @offset = optional['offset']
+      @optional = optional
+      @timeout = 100000
+      @ensure_https = false
+      @optional.each do |par, _|
+        fail UnknownOptionalParameter.new(par) unless ["count","offset"].include? par
+      end
+    end
+  
+    # HTTP method
+    def method
+      :get
+    end
+  
+    # Values of body parameters as a Hash
+    def body_parameters
+      p = Hash.new
+      p
+    end
+  
+    # Values of query parameters as a Hash.
+    # name of parameter => value of the parameter
+    def query_parameters
+      params = {}
+      params['count'] = @optional['count'] if @optional['count']
+      params['offset'] = @optional['offset'] if @optional['offset']
+      params
+    end
+  
+    # Relative path to the endpoint
+    def path
+      "/{databaseId}/synonyms/items/"
+    end
+  end
+end
diff --git a/lib/recombee_api_client/version.rb b/lib/recombee_api_client/version.rb
index 1207f30..76f05d2 100644
--- a/lib/recombee_api_client/version.rb
+++ b/lib/recombee_api_client/version.rb
@@ -1,3 +1,3 @@
 module RecombeeApiClient
-  VERSION = '3.1.0'
+  VERSION = '3.2.0'
 end
diff --git a/spec/api/add_search_synonym.rb b/spec/api/add_search_synonym.rb
new file mode 100644
index 0000000..101e77e
--- /dev/null
+++ b/spec/api/add_search_synonym.rb
@@ -0,0 +1,22 @@
+#
+# This file is auto-generated, do not edit
+#
+
+require 'spec_helper'
+require_relative 'set_environment'
+shared_examples 'add search synonym' do
+include_context 'set environment'
+
+  it 'adds search synonym' do
+    req = described_class.new('sci-fi','science fiction',{'oneWay' => true})
+    resp = @client.send(req)
+    expect(resp['term']).to eq 'sci-fi'
+    expect(resp['synonym']).to eq 'science fiction'
+    req = described_class.new('sci-fi','science fiction',{'oneWay' => true})
+    expect { @client.send(req) }.to raise_exception { |exception|
+       expect(exception).to be_a(RecombeeApiClient::ResponseError)
+       expect(exception.status_code).to eq 409
+     }
+  end
+
+end
diff --git a/spec/api/add_search_synonym_spec.rb b/spec/api/add_search_synonym_spec.rb
new file mode 100644
index 0000000..0c4c4bd
--- /dev/null
+++ b/spec/api/add_search_synonym_spec.rb
@@ -0,0 +1,10 @@
+#
+# This file is auto-generated, do not edit
+#
+
+require 'spec_helper'
+require_relative "add_search_synonym"
+
+describe RecombeeApiClient::AddSearchSynonym do
+  it_behaves_like "add search synonym"
+end
\ No newline at end of file
diff --git a/spec/api/delete_all_search_synonyms.rb b/spec/api/delete_all_search_synonyms.rb
new file mode 100644
index 0000000..5ab9419
--- /dev/null
+++ b/spec/api/delete_all_search_synonyms.rb
@@ -0,0 +1,15 @@
+#
+# This file is auto-generated, do not edit
+#
+
+require 'spec_helper'
+require_relative 'set_environment'
+shared_examples 'delete all search synonyms' do
+include_context 'set environment'
+
+  it 'deletes all search synonyms' do
+    req = described_class.new()
+    resp = @client.send(req)
+  end
+
+end
diff --git a/spec/api/delete_all_search_synonyms_spec.rb b/spec/api/delete_all_search_synonyms_spec.rb
new file mode 100644
index 0000000..9a6f995
--- /dev/null
+++ b/spec/api/delete_all_search_synonyms_spec.rb
@@ -0,0 +1,10 @@
+#
+# This file is auto-generated, do not edit
+#
+
+require 'spec_helper'
+require_relative "delete_all_search_synonyms"
+
+describe RecombeeApiClient::DeleteAllSearchSynonyms do
+  it_behaves_like "delete all search synonyms"
+end
\ No newline at end of file
diff --git a/spec/api/delete_search_synonym.rb b/spec/api/delete_search_synonym.rb
new file mode 100644
index 0000000..a635318
--- /dev/null
+++ b/spec/api/delete_search_synonym.rb
@@ -0,0 +1,22 @@
+#
+# This file is auto-generated, do not edit
+#
+
+require 'spec_helper'
+require_relative 'set_environment'
+shared_examples 'delete search synonym' do
+include_context 'set environment'
+
+  it 'deletes search synonym' do
+    req = AddSearchSynonym.new('sci-fi','science fiction')
+    resp = @client.send(req)
+    req = described_class.new(resp['id'])
+    resp = @client.send(req)
+    req = described_class.new('a968271b-d666-4dfb-8a30-f459e564ba7b')
+    expect { @client.send(req) }.to raise_exception { |exception|
+       expect(exception).to be_a(RecombeeApiClient::ResponseError)
+       expect(exception.status_code).to eq 404
+     }
+  end
+
+end
diff --git a/spec/api/delete_search_synonym_spec.rb b/spec/api/delete_search_synonym_spec.rb
new file mode 100644
index 0000000..4157d27
--- /dev/null
+++ b/spec/api/delete_search_synonym_spec.rb
@@ -0,0 +1,10 @@
+#
+# This file is auto-generated, do not edit
+#
+
+require 'spec_helper'
+require_relative "delete_search_synonym"
+
+describe RecombeeApiClient::DeleteSearchSynonym do
+  it_behaves_like "delete search synonym"
+end
\ No newline at end of file
diff --git a/spec/api/list_search_synonyms.rb b/spec/api/list_search_synonyms.rb
new file mode 100644
index 0000000..1a9e71a
--- /dev/null
+++ b/spec/api/list_search_synonyms.rb
@@ -0,0 +1,21 @@
+#
+# This file is auto-generated, do not edit
+#
+
+require 'spec_helper'
+require_relative 'set_environment'
+shared_examples 'list search synonyms' do
+include_context 'set environment'
+
+  it 'lists search synonyms' do
+    req = AddSearchSynonym.new('sci-fi','science fiction')
+    resp = @client.send(req)
+    req = described_class.new()
+    resp = @client.send(req)
+    expect(resp['synonyms'].size).to eq 1
+    req = described_class.new({'count' => 10,'offset' => 1})
+    resp = @client.send(req)
+    expect(resp['synonyms'].size).to eq 0
+  end
+
+end
diff --git a/spec/api/list_search_synonyms_spec.rb b/spec/api/list_search_synonyms_spec.rb
new file mode 100644
index 0000000..24e1a3b
--- /dev/null
+++ b/spec/api/list_search_synonyms_spec.rb
@@ -0,0 +1,10 @@
+#
+# This file is auto-generated, do not edit
+#
+
+require 'spec_helper'
+require_relative "list_search_synonyms"
+
+describe RecombeeApiClient::ListSearchSynonyms do
+  it_behaves_like "list search synonyms"
+end
\ No newline at end of file