diff --git a/.gitignore b/.gitignore
index e3200e0..da53231 100644
--- a/.gitignore
+++ b/.gitignore
@@ -54,3 +54,6 @@ build-iPhoneSimulator/
 
 # Used by RuboCop. Remote config files pulled in from inherit_from directive.
 # .rubocop-https?--*
+.idea/
+venv
+.bundle
diff --git a/README.md b/README.md
index 103f29f..b1dc573 100644
--- a/README.md
+++ b/README.md
@@ -18,7 +18,7 @@ See the [Listen Notes Podcast API docs](https://www.listennotes.com/api/docs/).
 
 Install the package with:
 ```sh
-gem install podcast-api
+gem install podcast_api
 ```
 
 
@@ -29,14 +29,47 @@ gem install podcast-api
 ## Usage
 
 The library needs to be configured with your account's API key which is
-available in your [Listen API Dashboard](https://www.listennotes.com/api/dashboard/#apps). Set `apiKey` to its
+available in your [Listen API Dashboard](https://www.listennotes.com/api/dashboard/#apps). Set `api_key` to its
 value:
 
 ```ruby
 
-# TODO
+require "podcast_api"
+
+api_key = ENV["LISTEN_API_KEY"]
+client = PodcastApi::Client.new(api_key: api_key)
+
+begin
+    response = client.search(q: 'startup', type: 'episode')
+    puts JSON.parse(response.body)
+rescue PodcastApi::AuthenticationError
+    puts 'Wrong api key'
+rescue PodcastApi::InvalidRequestError
+    puts 'Client side errors, e.g., wrong parameters'
+rescue PodcastApi::NotFoundError
+    puts 'Not found'
+rescue PodcastApi::RateLimitError
+    puts 'Reached quota limit'
+rescue PodcastApi::APIConnectionError
+    puts 'Failed to connect to Listen API servers'
+rescue PodcastApi::PodcastApiError
+    puts 'Server side errors'
+else
+    puts "Free Quota per month: #{response.headers['X-ListenAPI-FreeQuota']}"
+    puts "Usage this month: #{response.headers['X-ListenAPI-Usage']}"
+    puts "Next billing date: #{response.headers['X-Listenapi-NextBillingDate']}"
+end
 ```
 
-If `apiKey` is null, then we'll connect to a [mock server](https://www.listennotes.com/api/tutorials/#faq0) that returns fake data for testing purposes.
+If `api_key` is nil, then we'll connect to a [mock server](https://www.listennotes.com/api/tutorials/#faq0) that returns fake data for testing purposes.
 
 You can see all available API endpoints and parameters on the API Docs page at [listennotes.com/api/docs/](https://www.listennotes.com/api/docs/).
+
+### Handling exceptions
+
+Unsuccessful requests raise exceptions. The class of the exception will reflect
+the sort of error that occurred.
+
+All exception classes can be found in [this file](https://github.com/ListenNotes/podcast-api-ruby/blob/main/lib/errors.rb).
+
+And you can see some sample code [here](https://github.com/ListenNotes/podcast-api-ruby/blob/main/examples/sample.rb).
diff --git a/examples/Gemfile b/examples/Gemfile
index a08c364..5fee00e 100644
--- a/examples/Gemfile
+++ b/examples/Gemfile
@@ -1 +1,3 @@
+source 'https://rubygems.org'
+
 gem "podcast_api", path: "../"
diff --git a/examples/Gemfile.lock b/examples/Gemfile.lock
index 033ac0c..ac5f3bc 100644
--- a/examples/Gemfile.lock
+++ b/examples/Gemfile.lock
@@ -2,9 +2,18 @@ PATH
   remote: ..
   specs:
     podcast_api (1.0.1)
+      httparty
 
 GEM
+  remote: https://rubygems.org/
   specs:
+    httparty (0.18.1)
+      mime-types (~> 3.0)
+      multi_xml (>= 0.5.2)
+    mime-types (3.3.1)
+      mime-types-data (~> 3.2015)
+    mime-types-data (3.2021.0225)
+    multi_xml (0.6.0)
 
 PLATFORMS
   ruby
diff --git a/examples/sample.rb b/examples/sample.rb
index c55d21f..dc7c534 100644
--- a/examples/sample.rb
+++ b/examples/sample.rb
@@ -1 +1,77 @@
 require "podcast_api"
+
+api_key = ENV["LISTEN_API_KEY"]
+client = PodcastApi::Client.new(api_key: api_key)
+
+begin
+    response = client.search(q: 'startup')
+    puts JSON.parse(response.body)
+rescue PodcastApi::AuthenticationError
+    puts 'Wrong api key'
+rescue PodcastApi::InvalidRequestError
+    puts 'Client side errors, e.g., wrong parameters'
+rescue PodcastApi::NotFoundError
+    puts 'Not found'
+rescue PodcastApi::RateLimitError
+    puts 'Reached quota limit'
+rescue PodcastApi::APIConnectionError
+    puts 'Failed to connect to Listen API servers'
+rescue PodcastApi::PodcastApiError
+    puts 'Server side errors'
+else
+    puts "Free Quota per month: #{response.headers['X-ListenAPI-FreeQuota']}"
+    puts "Usage this month: #{response.headers['X-ListenAPI-Usage']}"
+    puts "Next billing date: #{response.headers['X-Listenapi-NextBillingDate']}"
+end
+
+
+# response = client.typeahead(q: 'startup', show_podcasts: 1)
+# puts JSON.parse(response.body)
+
+# response = client.fetch_best_podcasts()
+# puts JSON.parse(response.body)
+
+# response = client.fetch_podcast_by_id(id: '4d3fe717742d4963a85562e9f84d8c79')
+# puts JSON.parse(response.body)
+
+# response = client.fetch_episode_by_id(id: '6b6d65930c5a4f71b254465871fed370')
+# puts JSON.parse(response.body)
+
+# response = client.batch_fetch_podcasts(ids: '3302bc71139541baa46ecb27dbf6071a,68faf62be97149c280ebcc25178aa731,37589a3e121e40debe4cef3d9638932a,9cf19c590ff0484d97b18b329fed0c6a')
+# puts JSON.parse(response.body)
+
+# response = client.batch_fetch_episodes(ids: 'c577d55b2b2b483c969fae3ceb58e362,0f34a9099579490993eec9e8c8cebb82')
+# puts JSON.parse(response.body)
+
+# response = client.fetch_curated_podcasts_list_by_id(id: 'SDFKduyJ47r')
+# puts JSON.parse(response.body)
+
+# response = client.fetch_podcast_genres()
+# puts JSON.parse(response.body)
+
+# response = client.fetch_podcast_regions()
+# puts JSON.parse(response.body)
+
+# response = client.fetch_podcast_languages()
+# puts JSON.parse(response.body)
+
+# response = client.just_listen()
+# puts JSON.parse(response.body)
+
+# response = client.fetch_recommendations_for_podcast(id: '25212ac3c53240a880dd5032e547047b')
+# puts JSON.parse(response.body)
+
+# response = client.fetch_recommendations_for_episode(id: '914a9deafa5340eeaa2859c77f275799')
+# puts JSON.parse(response.body)
+
+# response = client.fetch_playlist_by_id(id: 'm1pe7z60bsw')
+# puts JSON.parse(response.body)
+
+# response = client.fetch_my_playlists()
+# puts JSON.parse(response.body)
+
+# response = client.submit_podcast(rss: 'https://feeds.megaphone.fm/committed')
+# puts JSON.parse(response.body)
+
+# response = client.delete_podcast(id: '4d3fe717742d4963a85562e9f84d8c79')
+# puts JSON.parse(response.body)
diff --git a/lib/errors.rb b/lib/errors.rb
new file mode 100644
index 0000000..1135ca6
--- /dev/null
+++ b/lib/errors.rb
@@ -0,0 +1,26 @@
+# frozen_string_literal: true
+
+module PodcastApi
+    # PodcastApiError is the base error from which all other more specific PodcastApi
+    # errors derive.
+    class PodcastApiError < StandardError
+    end
+  
+    class AuthenticationError < PodcastApiError
+    end
+  
+    class APIConnectionError < PodcastApiError
+    end
+  
+    class InvalidRequestError < PodcastApiError
+    end
+  
+    class RateLimitError < PodcastApiError
+    end
+  
+    class NotFoundError < PodcastApiError
+    end    
+
+    class APIConnectionError < PodcastApiError
+    end        
+end
diff --git a/lib/podcast_api.rb b/lib/podcast_api.rb
index 23b90dd..5feaee4 100644
--- a/lib/podcast_api.rb
+++ b/lib/podcast_api.rb
@@ -1,11 +1,140 @@
 # frozen_string_literal: true
 
-require "net/http"
+require 'httparty'
 
 # Version
-require "version"
-
-puts PodcastApi::VERSION
+require 'version'
+require 'errors'
 
 module PodcastApi
+
+    class Client
+        include HTTParty
+
+        @@BASE_URL_PROD = 'https://listen-api.listennotes.com/api/v2'
+        @@BASE_URL_TEST = 'https://listen-api-test.listennotes.com/api/v2'
+
+        def initialize(api_key: nil, user_agent: nil)
+            @api_key = api_key
+            @base_url = api_key ? @@BASE_URL_PROD : @@BASE_URL_TEST
+            @headers = {
+                'X-ListenAPI-Key' => @api_key,
+                'User-Agent' => user_agent ? user_agent : "podcasts-api-ruby #{VERSION}"
+            }
+            puts @headers
+        end    
+
+        protected
+        def get_response(response:)
+            if response.code == 200
+                return response
+            elsif response.code == 400
+                raise InvalidRequestError.new 'something wrong on your end (client side errors), e.g., missing required parameters'
+            elsif response.code == 401
+                raise AuthenticationError.new 'wrong api key or your account is suspended'
+            elsif response.code == 404
+                raise NotFoundError.new 'endpoint not exist, or podcast / episode not exist'
+            elsif response.code == 429
+                raise RateLimitError.new 'you are using FREE plan and you exceed the quota limit'
+            else
+                raise PodcastApiError.new 'something wrong on our end (unexpected server errors)'
+            end
+        end
+
+        def send_http_request(http_method, *args)
+            begin
+                response = HTTParty.public_send(http_method, *args)
+            rescue SocketError
+                raise APIConnectionError.new 'Failed to connect to Listen API servers'
+            else
+                return get_response(response: response)
+            end
+        end
+
+        public
+        def search(**kwargs)
+            return send_http_request('get', "#{@base_url}/search", {query: kwargs, headers: @headers})
+        end
+
+        def typeahead(**kwargs)
+            return send_http_request('get', "#{@base_url}/typeahead", {query: kwargs, headers: @headers})
+        end
+        
+        def fetch_best_podcasts(**kwargs)
+            return send_http_request('get', "#{@base_url}/best_podcasts", {query: kwargs, headers: @headers})
+        end
+        
+        def fetch_podcast_by_id(**kwargs)
+            id = kwargs.delete(:id)
+            return send_http_request('get', "#{@base_url}/podcasts/#{id}", {query: kwargs, headers: @headers})
+        end        
+
+        def fetch_episode_by_id(**kwargs)
+            id = kwargs.delete(:id)
+            return send_http_request('get', "#{@base_url}/episodes/#{id}", {query: kwargs, headers: @headers})
+        end        
+
+        def batch_fetch_podcasts(**kwargs)
+            return send_http_request('post', "#{@base_url}/podcasts", {body: kwargs, headers: @headers})
+        end         
+
+        def batch_fetch_episodes(**kwargs)
+            return send_http_request('post', "#{@base_url}/episodes", {body: kwargs, headers: @headers})
+        end              
+
+        def fetch_curated_podcasts_list_by_id(**kwargs)
+            id = kwargs.delete(:id)            
+            return send_http_request('get', "#{@base_url}/curated_podcasts/#{id}", {query: kwargs, headers: @headers})
+        end      
+        
+        def fetch_curated_podcasts_lists(**kwargs)
+            id = kwargs.delete(:id)            
+            return send_http_request('get', "#{@base_url}/curated_podcasts", {query: kwargs, headers: @headers})
+        end              
+        
+        def fetch_podcast_genres(**kwargs)
+            return send_http_request('get', "#{@base_url}/genres", {query: kwargs, headers: @headers})
+        end         
+        
+        def fetch_podcast_regions(**kwargs)
+            return send_http_request('get', "#{@base_url}/regions", {query: kwargs, headers: @headers})
+        end                   
+
+        def fetch_podcast_languages(**kwargs)
+            return send_http_request('get', "#{@base_url}/languages", {query: kwargs, headers: @headers})
+        end            
+
+        def just_listen(**kwargs)
+            return send_http_request('get', "#{@base_url}/just_listen", {query: kwargs, headers: @headers})
+        end           
+
+        def fetch_recommendations_for_podcast(**kwargs)
+            id = kwargs.delete(:id)            
+            return send_http_request('get', "#{@base_url}/podcasts/#{id}/recommendations", {query: kwargs, headers: @headers})
+        end           
+        
+        def fetch_recommendations_for_episode(**kwargs)
+            id = kwargs.delete(:id)            
+            return send_http_request('get', "#{@base_url}/episodes/#{id}/recommendations", {query: kwargs, headers: @headers})
+        end     
+        
+        def fetch_playlist_by_id(**kwargs)
+            id = kwargs.delete(:id)            
+            return send_http_request('get', "#{@base_url}/playlists/#{id}", {query: kwargs, headers: @headers})
+        end     
+        
+        def fetch_my_playlists(**kwargs)
+            return send_http_request('get', "#{@base_url}/playlists", {query: kwargs, headers: @headers})
+        end  
+        
+        def submit_podcast(**kwargs)
+            return send_http_request('post', "#{@base_url}/podcasts/submit", {body: kwargs, headers: @headers})
+        end       
+        
+        def delete_podcast(**kwargs)
+            id = kwargs.delete(:id)            
+            return send_http_request('delete', "#{@base_url}/podcasts/#{id}", {query: kwargs, headers: @headers})
+        end        
+    end
+
 end
diff --git a/podcast_api.gemspec b/podcast_api.gemspec
index 4f734c8..500b5f4 100644
--- a/podcast_api.gemspec
+++ b/podcast_api.gemspec
@@ -15,7 +15,7 @@ Gem::Specification.new do |s|
   s.email = "hello@listennotes.com"
   s.homepage = "https://www.listennotes.com/api/"
   s.license = "MIT"
-
+  s.add_runtime_dependency "httparty"
   s.metadata = {
     "bug_tracker_uri" => "https://github.com/ListenNotes/podcast-api-ruby/issues",
     "changelog_uri" =>