diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 91b98640..48c7aa54 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -73,6 +73,31 @@ jobs:
       working-directory: clients/js
       env:
         NODE_AUTH_TOKEN: ${{ secrets.NPM_TOKEN }}
+  publish-ruby-client:
+    runs-on: ubuntu-latest
+    needs: create-release
+    permissions:
+      packages: write
+      contents: read
+    steps:
+      - uses: actions/checkout@v2
+      - name: Set up Ruby 2.6
+        uses: ruby/setup-ruby@477b21f02be01bcb8030d50f37cfec92bfa615b6
+        with:
+          ruby-version: 2.6
+      - run: bundle install
+        working-directory: clients/ruby
+      - name: Publish to RubyGems
+        run: |
+          mkdir -p $HOME/.gem
+          touch $HOME/.gem/credentials
+          chmod 0600 $HOME/.gem/credentials
+          printf -- "---\n:rubygems_api_key: ${GEM_HOST_API_KEY}\n" > $HOME/.gem/credentials
+          gem build *.gemspec
+          gem push *.gem
+        env:
+          GEM_HOST_API_KEY: "${{secrets.RUBYGEMS_AUTH_TOKEN}}"
+        working-directory: clients/ruby
   publish-server:
     runs-on: ubuntu-latest
     needs: create-release
diff --git a/.github/workflows/ruby-client-test.yaml b/.github/workflows/ruby-client-test.yaml
new file mode 100644
index 00000000..9cd336a9
--- /dev/null
+++ b/.github/workflows/ruby-client-test.yaml
@@ -0,0 +1,21 @@
+name: Test stencil RUBY client
+on:
+  push:
+    paths:
+      - "clients/ruby/**"
+    branches:
+      - master
+  pull_request:
+    paths:
+      - "clients/ruby/**"
+    branches:
+      - master
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v2
+    - uses: actions/setup-ruby@v1
+      with:
+        ruby-version: '2.5'
+    - run: cd clients/ruby; bin/setup; rspec -fd
diff --git a/clients/README.md b/clients/README.md
index c2afffe0..fd8e90d5 100644
--- a/clients/README.md
+++ b/clients/README.md
@@ -20,3 +20,4 @@ Stencil clients abstracts handling of descriptorset file on client side. Current
  - [Java](java)
  - [Go](go)
  - [Javascript](js)
+ - [Ruby](ruby)
diff --git a/clients/ruby/.gitignore b/clients/ruby/.gitignore
new file mode 100644
index 00000000..72c4ecbc
--- /dev/null
+++ b/clients/ruby/.gitignore
@@ -0,0 +1,16 @@
+.mine
+*.gem
+.config
+.rvmrc
+.yardoc
+InstalledFiles
+_yardoc
+
+.bundle
+.ruby-version
+doc
+coverage
+pkg
+spec/examples.txt
+tmp
+Gemfile.lock
\ No newline at end of file
diff --git a/clients/ruby/.rspec b/clients/ruby/.rspec
new file mode 100644
index 00000000..584d9ceb
--- /dev/null
+++ b/clients/ruby/.rspec
@@ -0,0 +1,5 @@
+--backtrace
+--color
+--format=documentation
+--order random
+--require spec_helper
\ No newline at end of file
diff --git a/clients/ruby/Gemfile b/clients/ruby/Gemfile
new file mode 100644
index 00000000..b30038a9
--- /dev/null
+++ b/clients/ruby/Gemfile
@@ -0,0 +1,19 @@
+# frozen_string_literal: true
+
+source "https://rubygems.org"
+
+# Specify your gem's dependencies in stencil.gemspec
+gemspec
+
+gem "rake", "~> 13.0"
+gem "http", "4.4.1"
+gem 'concurrent-ruby', require: 'concurrent'
+gem 'protobuf'
+
+group :test do
+  gem "simplecov", ">= 0.9"
+  gem "rspec", "~> 3.0"
+  gem "rubocop", "~> 1.7"
+  gem "pry"
+  gem "google-protobuf"
+end
diff --git a/clients/ruby/README.md b/clients/ruby/README.md
new file mode 100644
index 00000000..b75d3df0
--- /dev/null
+++ b/clients/ruby/README.md
@@ -0,0 +1,26 @@
+# Stencil
+
+Stencil ruby gem provides a store to lookup protobuf descriptors and options to keep the protobuf descriptors upto date.
+
+## Installation
+
+```ruby
+gem 'stencil'
+```
+
+And then execute:
+
+    $ bundle install
+
+Or install it yourself as:
+
+    $ gem install stencil
+
+## Usage
+
+
+## Development
+
+After checking out the repo, run `bin/setup` to install dependencies. You can also run `bin/console` for an interactive prompt that will allow you to experiment.
+
+To install this gem onto your local machine, run `bundle exec rake install`. To release a new version, update the version number in `version.rb`, and then run `bundle exec rake release`, which will create a git tag for the version, push git commits and the created tag, and push the `.gem` file to [rubygems.org](https://rubygems.org).
diff --git a/clients/ruby/Rakefile b/clients/ruby/Rakefile
new file mode 100644
index 00000000..19241434
--- /dev/null
+++ b/clients/ruby/Rakefile
@@ -0,0 +1,8 @@
+# frozen_string_literal: true
+
+require "bundler/gem_tasks"
+require "rubocop/rake_task"
+
+RuboCop::RakeTask.new
+
+task default: :rubocop
diff --git a/clients/ruby/bin/console b/clients/ruby/bin/console
new file mode 100755
index 00000000..13d1e32e
--- /dev/null
+++ b/clients/ruby/bin/console
@@ -0,0 +1,15 @@
+#!/usr/bin/env ruby
+# frozen_string_literal: true
+
+require "bundler/setup"
+require "stencil"
+
+# You can add fixtures and/or initialization code here to make experimenting
+# with your gem easier. You can also use a different console, if you like.
+
+# (If you use this, don't forget to add pry to your Gemfile!)
+# require "pry"
+# Pry.start
+
+require "irb"
+IRB.start(__FILE__)
diff --git a/clients/ruby/bin/setup b/clients/ruby/bin/setup
new file mode 100755
index 00000000..ed41db96
--- /dev/null
+++ b/clients/ruby/bin/setup
@@ -0,0 +1,9 @@
+#!/usr/bin/env bash
+set -euo pipefail
+IFS=$'\n\t'
+set -vx
+
+gem install bundler:1.17.3
+bundle install
+
+# Do any other automated setup that you need to do here
diff --git a/clients/ruby/lib/stencil.rb b/clients/ruby/lib/stencil.rb
new file mode 100644
index 00000000..600d36a6
--- /dev/null
+++ b/clients/ruby/lib/stencil.rb
@@ -0,0 +1,18 @@
+require_relative "stencil/version"
+require_relative "stencil/configuration"
+require_relative "stencil/constants"
+require_relative "stencil/client"
+require_relative "stencil/store"
+
+require "http"
+require "concurrent/timer_task"
+require "concurrent/mutable_struct"
+require "protobuf"
+
+module Stencil
+  class Error < StandardError; end
+  class InvalidConfiguration < Error; end
+  class InvalidProtoClass < Error; end
+  class HTTPClientError < Error; end
+  class HTTPServerError < Error; end
+end
diff --git a/clients/ruby/lib/stencil/client.rb b/clients/ruby/lib/stencil/client.rb
new file mode 100644
index 00000000..b4378dbe
--- /dev/null
+++ b/clients/ruby/lib/stencil/client.rb
@@ -0,0 +1,65 @@
+module Stencil
+  class Client
+    attr_reader :root
+    def initialize
+      begin
+        @config = Stencil.configuration
+        validate_configuration(@config)
+
+        setup_http_client
+
+        @store = Store.new
+        load_descriptors
+        setup_store_update_job
+      end
+    end
+
+    def get_type(proto_name)
+      file_descriptor_set = @store.read(@config.registry_url)
+      file_descriptor_set.file.each do |file_desc|
+        file_desc.message_type.each do |message|
+          if proto_name == "#{file_desc.options.java_package}.#{message.name}"
+            return message
+          end
+        end
+      end
+      raise InvalidProtoClass.new
+    end
+
+    def close
+      @task.shutdown
+    end
+
+    private
+
+    def validate_configuration(configuration)
+      raise Stencil::InvalidConfiguration.new() if configuration.registry_url.nil? || configuration.bearer_token.nil? || configuration.bearer_token == "Bearer "
+    end
+
+    def setup_http_client
+      @http_client = HTTP.auth(@config.bearer_token).timeout(@config.http_timeout)
+    end
+
+    def load_descriptors
+      begin
+        response = @http_client.get(@config.registry_url)
+        if response.code != 200
+          raise HTTPServerError.new("Error while fetching descriptor file: Got #{response.code} from stencil server")
+        end
+      rescue StandardError => e
+        raise HTTPClientError.new(e.message)
+      end
+
+      file_descriptor_set = Google::Protobuf::FileDescriptorSet.decode(response.body)
+      @store.write(@config.registry_url, file_descriptor_set)
+    end
+
+    def setup_store_update_job
+      begin
+        @task = Concurrent::TimerTask.new(execution_interval: @config.refresh_ttl_in_secs) do
+          load_descriptors
+        end
+      end
+    end
+  end
+end
\ No newline at end of file
diff --git a/clients/ruby/lib/stencil/configuration.rb b/clients/ruby/lib/stencil/configuration.rb
new file mode 100644
index 00000000..85353e20
--- /dev/null
+++ b/clients/ruby/lib/stencil/configuration.rb
@@ -0,0 +1,55 @@
+module Stencil
+  class Configuration
+    def initialize
+      @config = ::OpenStruct.new
+    end
+
+    def registry_url
+      @config.registry_url
+    end
+
+    def registry_url=(registry_url)
+      @config.registry_url = registry_url
+    end
+
+    def http_timeout
+      @config.http_timeout || DEFAULT_TIMEOUT_IN_MS
+    end
+
+    def http_timeout=(timeout)
+      @config.http_timeout = timeout
+    end
+
+    def refresh_enabled
+      @config.refresh_enabled.nil? ? true : @config.refresh_enabled
+    end
+
+    def refresh_enabled=(refresh_enabled = true)
+      @config.refresh_enabled = refresh_enabled
+    end
+
+    def refresh_ttl_in_secs
+      @config.refresh_ttl_in_secs || DEFAULT_REFRESH_INTERVAL_IN_SECONDS
+    end
+
+    def refresh_ttl_in_secs=(refresh_ttl_in_secs)
+      @config.refresh_ttl_in_secs = refresh_ttl_in_secs
+    end
+
+    def bearer_token=(token)
+      @config.bearer_token = "Bearer " + token
+    end
+
+    def bearer_token
+      @config.bearer_token
+    end
+  end
+
+  def self.configuration
+    @config ||= Configuration.new
+  end
+
+  def self.configure
+    yield(configuration)
+  end
+end
\ No newline at end of file
diff --git a/clients/ruby/lib/stencil/constants.rb b/clients/ruby/lib/stencil/constants.rb
new file mode 100644
index 00000000..90e779bd
--- /dev/null
+++ b/clients/ruby/lib/stencil/constants.rb
@@ -0,0 +1,4 @@
+module Stencil
+  DEFAULT_TIMEOUT_IN_MS = 10000
+  DEFAULT_REFRESH_INTERVAL_IN_SECONDS = 43200
+end
\ No newline at end of file
diff --git a/clients/ruby/lib/stencil/store.rb b/clients/ruby/lib/stencil/store.rb
new file mode 100644
index 00000000..280d8b8a
--- /dev/null
+++ b/clients/ruby/lib/stencil/store.rb
@@ -0,0 +1,18 @@
+module Stencil
+  class Store
+    def initialize
+      @lock = Concurrent::ReadWriteLock.new
+      @data = Hash.new
+    end
+
+    def write(key, value)
+      @lock.with_write_lock do
+        @data.store(key, value)
+      end
+    end
+
+    def read(key)
+      @data[key]
+    end
+  end
+end
\ No newline at end of file
diff --git a/clients/ruby/lib/stencil/version.rb b/clients/ruby/lib/stencil/version.rb
new file mode 100644
index 00000000..74c0d88f
--- /dev/null
+++ b/clients/ruby/lib/stencil/version.rb
@@ -0,0 +1,5 @@
+# frozen_string_literal: true
+
+module Stencil
+  VERSION = "0.1.0"
+end
diff --git a/clients/ruby/spec/data/desc-proto-bin b/clients/ruby/spec/data/desc-proto-bin
new file mode 100644
index 00000000..64e4a3b0
Binary files /dev/null and b/clients/ruby/spec/data/desc-proto-bin differ
diff --git a/clients/ruby/spec/spec_helper.rb b/clients/ruby/spec/spec_helper.rb
new file mode 100644
index 00000000..9da8ec7f
--- /dev/null
+++ b/clients/ruby/spec/spec_helper.rb
@@ -0,0 +1,28 @@
+require 'simplecov'
+
+SimpleCov.formatter = SimpleCov::Formatter::MultiFormatter.new(
+  [
+    SimpleCov::Formatter::HTMLFormatter,
+  ]
+)
+
+SimpleCov.start do
+  add_filter "/spec/"
+  minimum_coverage 80
+end
+
+require 'bundler/setup'
+Bundler.setup
+
+require 'pry'
+require 'stencil'
+require 'webmock/rspec'
+
+RSpec.configure do |config|
+  config.filter_run_when_matching focus: true
+  config.disable_monkey_patching!
+  config.profile_examples = 10
+  config.order = :random
+end
+
+WebMock.disable_net_connect!(allow_localhost: true)
\ No newline at end of file
diff --git a/clients/ruby/spec/stencil/client_spec.rb b/clients/ruby/spec/stencil/client_spec.rb
new file mode 100644
index 00000000..b3c4213e
--- /dev/null
+++ b/clients/ruby/spec/stencil/client_spec.rb
@@ -0,0 +1,68 @@
+module Stencil
+  RSpec.describe Client do
+    let(:registry_url) { 'http://stencil.test' }
+    let(:bearer_token) { 'sample-token-123' }
+    let(:service_type_message)  do
+      service_type = nil
+      Google::Protobuf::FileDescriptorSet.decode(File.read('spec/data/desc-proto-bin')).file.each do |file|
+        file.message_type.each do |msg|
+          if msg.name == "ServiceType"
+            service_type = msg
+          end
+        end
+      end
+      service_type
+    end
+
+    context '#get_type' do
+      subject { Stencil::Client.new }
+
+      before(:each) do
+        Stencil.configure do |config|
+          config.registry_url = registry_url
+          config.bearer_token = bearer_token
+        end
+
+        @stencil_get_stub = stub_request(:get, registry_url).
+          with(
+            headers: {
+              'Authorization' => 'Bearer ' + bearer_token,
+              'Connection' => 'close',
+              'Host' => 'stencil.test',
+              'User-Agent' => 'http.rb/4.4.1'
+            })
+      end
+
+      it 'should raise error if configs are invalid' do
+        config = Stencil.configuration
+        config.bearer_token = ""
+        expect { subject }.to raise_error(Stencil::InvalidConfiguration)
+      end
+
+      it 'should raise error if http client returns error on stencil get api' do
+        @stencil_get_stub.to_raise(StandardError.new('some error'))
+        expect { subject.get_type }.to raise_error(Stencil::HTTPClientError)
+      end
+
+      it 'should raise error if http client returns 500' do
+        @stencil_get_stub.to_return(status: 500, body: 'Internal server error', headers: {})
+        expect { subject.get_type }.to raise_error(Stencil::HTTPClientError)
+      end
+
+      it 'should raise error for invalid proto type' do
+        @stencil_get_stub.to_return(status: 200, body: File.new('spec/data/desc-proto-bin'), headers: {})
+
+        proto_name = "incorrect"
+        expect { subject.get_type(proto_name) }.to raise_error(Stencil::InvalidProtoClass)
+      end
+
+      it 'should successfully return proto type' do
+        @stencil_get_stub.to_return(status: 200, body: File.new('spec/data/desc-proto-bin'), headers: {})
+
+        proto_name = "com.gojek.esb.types.ServiceType"
+        actual_type = subject.get_type(proto_name)
+        expect(actual_type).to eq(service_type_message)
+      end
+    end
+  end
+end
\ No newline at end of file
diff --git a/clients/ruby/spec/stencil/configuration_spec.rb b/clients/ruby/spec/stencil/configuration_spec.rb
new file mode 100644
index 00000000..30b81966
--- /dev/null
+++ b/clients/ruby/spec/stencil/configuration_spec.rb
@@ -0,0 +1,74 @@
+module Stencil
+  RSpec.describe Configuration do
+    let(:configuration) { Stencil.configuration }
+
+    it 'should set registry urls correctly' do
+      expect(configuration.registry_url).to eq(nil)
+
+      expected_value = 'http://localhost:3000'
+      configuration.registry_url = expected_value
+      expect(configuration.registry_url).to eq(expected_value)
+    end
+
+
+    it 'should set http_timeout correctly' do
+      expect(configuration.http_timeout).to eq(DEFAULT_TIMEOUT_IN_MS)
+
+      timeout = 3000
+      configuration.http_timeout = timeout
+      expect(configuration.http_timeout).to eq(3000)
+    end
+
+    it 'should set refresh_enabled correctly' do
+      expect(configuration.refresh_enabled).to eq(true)
+
+      refresh_enabled = false
+      configuration.refresh_enabled = refresh_enabled
+      expect(configuration.refresh_enabled).to eq(refresh_enabled)
+    end
+
+    it 'should set refresh_ttl_in_secs correctly' do
+      expect(configuration.refresh_ttl_in_secs).to eq(DEFAULT_REFRESH_INTERVAL_IN_SECONDS)
+
+      refresh_ttl_in_secs = 50000
+      configuration.refresh_ttl_in_secs = refresh_ttl_in_secs
+      expect(configuration.refresh_ttl_in_secs).to eq(refresh_ttl_in_secs)
+    end
+
+    it 'should set bearer_token correctly' do
+      token = "sampletoken"
+      expected_bearer_token = "Bearer sampletoken"
+      configuration.bearer_token = token
+      expect(configuration.bearer_token).to eq(expected_bearer_token)
+    end
+
+    describe '#configure' do
+      let(:refresh_enabled) {true}
+      let(:refresh_ttl_in_secs) {60000}
+      let(:registry_url) {"abc.com/latest"}
+      let(:token) {"ABCD1234"}
+      let(:bearer_token) {"Bearer " + token}
+      let(:http_timeout) {6000}
+
+      before(:each) do
+        Stencil.configure do |config|
+          config.registry_url = registry_url
+          config.bearer_token = token
+          config.refresh_enabled = refresh_enabled
+          config.refresh_ttl_in_secs = refresh_ttl_in_secs
+          config.http_timeout = http_timeout
+        end
+      end
+
+      subject { Stencil.configuration }
+
+      it 'should set configuration correctly' do
+        expect(subject.registry_url).to eq(registry_url)
+        expect(subject.bearer_token).to eq(bearer_token)
+        expect(subject.refresh_enabled).to eq(refresh_enabled)
+        expect(subject.refresh_ttl_in_secs).to eq(refresh_ttl_in_secs)
+        expect(subject.http_timeout).to eq(http_timeout)
+      end
+    end
+  end
+end
diff --git a/clients/ruby/spec/stencil/store_spec.rb b/clients/ruby/spec/stencil/store_spec.rb
new file mode 100644
index 00000000..62ac7fe0
--- /dev/null
+++ b/clients/ruby/spec/stencil/store_spec.rb
@@ -0,0 +1,30 @@
+module Stencil
+  RSpec.describe Store do
+    context "#read" do
+      let(:sample_key) { "sample_key" }
+      let(:sample_value) { 123 }
+
+      it "should be able to handle concurrent reads of data" do
+        store = Store.new
+        store.write(sample_key, sample_value)
+
+        5.times do
+          Thread.start do
+            expect(store.read(sample_key)).to eq(sample_value)
+          end
+        end
+      end
+    end
+
+    context "#write" do
+      let(:sample_key) { "sample_key" }
+      let(:sample_value) { 100 }
+
+      it "should be able to handle concurrent writes of data by locking data" do
+        store = Store.new
+        store.write(sample_key, sample_value)
+        expect(store.read(sample_key)).to eq(sample_value)
+      end
+    end
+  end
+end
diff --git a/clients/ruby/stencil.gemspec b/clients/ruby/stencil.gemspec
new file mode 100644
index 00000000..6d6f9109
--- /dev/null
+++ b/clients/ruby/stencil.gemspec
@@ -0,0 +1,32 @@
+# frozen_string_literal: true
+
+require_relative "lib/stencil/version"
+
+Gem::Specification.new do |spec|
+  spec.name          = "stencil"
+  spec.version       = Stencil::VERSION
+  spec.authors       = ["Daval Pargal"]
+  spec.email         = ["davalpargal@gmail.com"]
+
+  spec.summary       = "Stencil ruby gem provides a store to lookup protobuf descriptors and options to keep the protobuf descriptors upto date."
+  spec.homepage      = "https://odpf.gitbook.io/stencil/"
+  spec.required_ruby_version = ">= 2.4.0"
+
+  spec.metadata["allowed_push_host"] = ""
+
+  spec.metadata["homepage_uri"] = spec.homepage
+  spec.metadata["source_code_uri"] = "https://github.com/odpf/stencil"
+  spec.metadata["changelog_uri"] = "https://github.com/odpf/stencil/blob/master/CHANGELOG.md"
+
+  # Specify which files should be added to the gem when it is released.
+  # The `git ls-files -z` loads the files in the RubyGem that have been added into git.
+  spec.files = Dir.chdir(File.expand_path(__dir__)) do
+    `git ls-files -z`.split("\x0").reject { |f| f.match(%r{\A(?:test|spec|features)/}) }
+  end
+  spec.bindir        = "exe"
+  spec.executables   = spec.files.grep(%r{\Aexe/}) { |f| File.basename(f) }
+  spec.require_paths = ["lib"]
+
+  spec.add_development_dependency "bundler", "~> 1.17.3"
+  spec.add_development_dependency "webmock", "~> 3.14.0"
+end