diff --git a/.env.example b/.env.example
new file mode 100644
index 0000000..f865d19
--- /dev/null
+++ b/.env.example
@@ -0,0 +1 @@
+OPENAI_ACCESS_TOKEN=dummy
\ No newline at end of file
diff --git a/.gitignore b/.gitignore
index c453501..671667a 100644
--- a/.gitignore
+++ b/.gitignore
@@ -29,3 +29,5 @@ node_modules
 
 # Ignore master key for decrypting credentials and more.
 /config/master.key
+
+.env
diff --git a/Gemfile b/Gemfile
index 40668a8..5a89313 100644
--- a/Gemfile
+++ b/Gemfile
@@ -55,3 +55,7 @@ group :development do
 end
 
 gem "active_model_serializers", "~> 0.10.13"
+
+gem "dotenv-rails", groups: %i[development test]
+gem "ruby-openai"
+gem "pry"
diff --git a/Gemfile.lock b/Gemfile.lock
index 717b53e..871309d 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -78,6 +78,7 @@ GEM
     builder (3.2.4)
     case_transform (0.2)
       activesupport
+    coderay (1.1.3)
     concurrent-ruby (1.2.0)
     crass (1.0.6)
     database_cleaner (2.0.2)
@@ -91,7 +92,17 @@ GEM
       irb (>= 1.5.0)
       reline (>= 0.3.1)
     diff-lcs (1.5.0)
+    dotenv (2.8.1)
+    dotenv-rails (2.8.1)
+      dotenv (= 2.8.1)
+      railties (>= 3.2)
     erubi (1.12.0)
+    faraday (2.7.10)
+      faraday-net_http (>= 2.0, < 3.1)
+      ruby2_keywords (>= 0.0.4)
+    faraday-multipart (1.0.4)
+      multipart-post (~> 2)
+    faraday-net_http (3.0.2)
     globalid (1.1.0)
       activesupport (>= 5.0)
     haml (6.1.1)
@@ -117,6 +128,7 @@ GEM
     mini_mime (1.1.2)
     minitest (5.17.0)
     msgpack (1.6.0)
+    multipart-post (2.3.0)
     net-imap (0.3.4)
       date
       net-protocol
@@ -133,6 +145,9 @@ GEM
       racc (~> 1.4)
     pg (1.4.5)
     prettier_print (1.2.1)
+    pry (0.14.2)
+      coderay (~> 1.1)
+      method_source (~> 1.0)
     puma (5.6.5)
       nio4r (~> 2.0)
     racc (1.6.2)
@@ -186,6 +201,10 @@ GEM
       rspec-mocks (~> 3.12)
       rspec-support (~> 3.12)
     rspec-support (3.12.1)
+    ruby-openai (4.2.0)
+      faraday (>= 1)
+      faraday-multipart (>= 1)
+    ruby2_keywords (0.0.5)
     syntax_tree (6.1.1)
       prettier_print (>= 1.2.0)
     syntax_tree-haml (4.0.3)
@@ -218,11 +237,14 @@ DEPENDENCIES
   bootsnap
   database_cleaner
   debug
+  dotenv-rails
   pg (~> 1.1)
   prettier_print
+  pry
   puma (~> 5.0)
   rails (~> 7.0.4, >= 7.0.4.2)
   rspec-rails
+  ruby-openai
   syntax_tree
   syntax_tree-haml
   syntax_tree-rbs
diff --git a/app/services/exercise_recommender_service.rb b/app/services/exercise_recommender_service.rb
new file mode 100644
index 0000000..59071f5
--- /dev/null
+++ b/app/services/exercise_recommender_service.rb
@@ -0,0 +1,38 @@
+class ExerciseRecommenderService
+  attr_reader :client
+
+  def initialize
+    @client = OpenAI::Client.new
+  end
+
+  def recommend_next_exercise(current_exercises)
+    response =
+      @client.chat(
+        parameters: {
+          model: "gpt-3.5-turbo",
+          messages: messages(current_exercises)
+        }
+      )
+
+    body = JSON.parse(response["choices"][0]["message"]["content"])
+
+    return body["name"], body["instructions"]
+  end
+
+  def messages(current_exercises)
+    exercise_names = current_exercises.pluck(:name).join(", ")
+
+    return [
+      {
+        "role" => "system",
+        "content" =>
+          "You will be provided a list of exercise names. Your task is to suggest the next exercise to do. Make the response in the JSON format: {\"name\": \"exercise name\",  \"instructions\": \"exercise instructions\"}."
+      },
+      {
+        "role" => "user",
+        "content" =>
+          "My current exercises are: #{exercise_names}. What should my next exercise be?"
+      }
+    ]
+  end
+end
diff --git a/config/initializers/openai.rb b/config/initializers/openai.rb
new file mode 100644
index 0000000..17f4af7
--- /dev/null
+++ b/config/initializers/openai.rb
@@ -0,0 +1,3 @@
+OpenAI.configure do |config|
+  config.access_token = ENV.fetch("OPENAI_ACCESS_TOKEN")
+end
diff --git a/package-lock.json b/package-lock.json
index 4c60401..00e3e16 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,5 +1,5 @@
 {
-  "name": "exercise-tracker",
+  "name": "Exercise-tracker",
   "lockfileVersion": 2,
   "requires": true,
   "packages": {