diff --git a/Gemfile b/Gemfile
index d41b122..74f8f43 100644
--- a/Gemfile
+++ b/Gemfile
@@ -35,6 +35,10 @@ gem "bootsnap", require: false
 # Use Rack CORS for handling Cross-Origin Resource Sharing (CORS), making cross-origin Ajax possible
 # gem "rack-cors"
 
+gem "opentelemetry-sdk", "~> 1.4"
+gem "opentelemetry-exporter-otlp"
+gem "opentelemetry-instrumentation-all", "~> 0.60.0"
+
 group :development, :test do
   # See https://guides.rubyonrails.org/debugging_rails_applications.html#debugging-with-the-debug-gem
   gem "debug", platforms: %i[ mri windows ]
diff --git a/Gemfile.lock b/Gemfile.lock
index adc7e8a..2b23152 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -75,6 +75,8 @@ GEM
       minitest (>= 5.1)
       mutex_m
       tzinfo (~> 2.0)
+    addressable (2.8.6)
+      public_suffix (>= 2.0.2, < 6.0)
     base64 (0.2.0)
     bigdecimal (3.1.7)
     bootsnap (1.18.3)
@@ -82,15 +84,28 @@ GEM
     builder (3.2.4)
     concurrent-ruby (1.2.3)
     connection_pool (2.4.1)
+    crack (1.0.0)
+      bigdecimal
+      rexml
     crass (1.0.6)
     date (3.3.4)
     debug (1.9.2)
       irb (~> 1.10)
       reline (>= 0.3.8)
+    diff-lcs (1.5.1)
     drb (2.2.1)
     erubi (1.12.0)
     globalid (1.2.1)
       activesupport (>= 6.1)
+    google-protobuf (3.25.3)
+    google-protobuf (3.25.3-aarch64-linux)
+    google-protobuf (3.25.3-arm64-darwin)
+    google-protobuf (3.25.3-x86-linux)
+    google-protobuf (3.25.3-x86_64-darwin)
+    google-protobuf (3.25.3-x86_64-linux)
+    googleapis-common-protos-types (1.14.0)
+      google-protobuf (~> 3.18)
+    hashdiff (1.1.0)
     i18n (1.14.4)
       concurrent-ruby (~> 1.0)
     io-console (0.7.2)
@@ -132,8 +147,212 @@ GEM
       racc (~> 1.4)
     nokogiri (1.16.4-x86_64-linux)
       racc (~> 1.4)
+    opentelemetry-api (1.2.5)
+    opentelemetry-common (0.20.1)
+      opentelemetry-api (~> 1.0)
+    opentelemetry-exporter-otlp (0.26.3)
+      google-protobuf (~> 3.14)
+      googleapis-common-protos-types (~> 1.3)
+      opentelemetry-api (~> 1.1)
+      opentelemetry-common (~> 0.20)
+      opentelemetry-sdk (~> 1.2)
+      opentelemetry-semantic_conventions
+    opentelemetry-helpers-mysql (0.1.0)
+      opentelemetry-api (~> 1.0)
+      opentelemetry-common (~> 0.20)
+    opentelemetry-helpers-sql-obfuscation (0.1.0)
+      opentelemetry-common (~> 0.20)
+    opentelemetry-instrumentation-action_pack (0.9.0)
+      opentelemetry-api (~> 1.0)
+      opentelemetry-instrumentation-base (~> 0.22.1)
+      opentelemetry-instrumentation-rack (~> 0.21)
+    opentelemetry-instrumentation-action_view (0.7.0)
+      opentelemetry-api (~> 1.0)
+      opentelemetry-instrumentation-active_support (~> 0.1)
+      opentelemetry-instrumentation-base (~> 0.22.1)
+    opentelemetry-instrumentation-active_job (0.7.1)
+      opentelemetry-api (~> 1.0)
+      opentelemetry-instrumentation-base (~> 0.22.1)
+    opentelemetry-instrumentation-active_model_serializers (0.20.1)
+      opentelemetry-api (~> 1.0)
+      opentelemetry-instrumentation-base (~> 0.22.1)
+    opentelemetry-instrumentation-active_record (0.7.2)
+      opentelemetry-api (~> 1.0)
+      opentelemetry-instrumentation-base (~> 0.22.1)
+    opentelemetry-instrumentation-active_support (0.5.1)
+      opentelemetry-api (~> 1.0)
+      opentelemetry-instrumentation-base (~> 0.22.1)
+    opentelemetry-instrumentation-all (0.60.0)
+      opentelemetry-instrumentation-active_model_serializers (~> 0.20.1)
+      opentelemetry-instrumentation-aws_sdk (~> 0.5.0)
+      opentelemetry-instrumentation-bunny (~> 0.21.0)
+      opentelemetry-instrumentation-concurrent_ruby (~> 0.21.1)
+      opentelemetry-instrumentation-dalli (~> 0.25.0)
+      opentelemetry-instrumentation-delayed_job (~> 0.22.0)
+      opentelemetry-instrumentation-ethon (~> 0.21.1)
+      opentelemetry-instrumentation-excon (~> 0.22.0)
+      opentelemetry-instrumentation-faraday (~> 0.24.0)
+      opentelemetry-instrumentation-grape (~> 0.1.3)
+      opentelemetry-instrumentation-graphql (~> 0.28.0)
+      opentelemetry-instrumentation-gruf (~> 0.2.0)
+      opentelemetry-instrumentation-http (~> 0.23.1)
+      opentelemetry-instrumentation-http_client (~> 0.22.1)
+      opentelemetry-instrumentation-koala (~> 0.20.1)
+      opentelemetry-instrumentation-lmdb (~> 0.22.1)
+      opentelemetry-instrumentation-mongo (~> 0.22.1)
+      opentelemetry-instrumentation-mysql2 (~> 0.27.0)
+      opentelemetry-instrumentation-net_http (~> 0.22.1)
+      opentelemetry-instrumentation-pg (~> 0.27.0)
+      opentelemetry-instrumentation-que (~> 0.8.0)
+      opentelemetry-instrumentation-racecar (~> 0.3.0)
+      opentelemetry-instrumentation-rack (~> 0.24.0)
+      opentelemetry-instrumentation-rails (~> 0.30.0)
+      opentelemetry-instrumentation-rake (~> 0.2.1)
+      opentelemetry-instrumentation-rdkafka (~> 0.4.0)
+      opentelemetry-instrumentation-redis (~> 0.25.1)
+      opentelemetry-instrumentation-resque (~> 0.5.0)
+      opentelemetry-instrumentation-restclient (~> 0.22.1)
+      opentelemetry-instrumentation-ruby_kafka (~> 0.21.0)
+      opentelemetry-instrumentation-sidekiq (~> 0.25.0)
+      opentelemetry-instrumentation-sinatra (~> 0.23.1)
+      opentelemetry-instrumentation-trilogy (~> 0.59.0)
+    opentelemetry-instrumentation-aws_sdk (0.5.2)
+      opentelemetry-api (~> 1.0)
+      opentelemetry-instrumentation-base (~> 0.22.1)
+    opentelemetry-instrumentation-base (0.22.3)
+      opentelemetry-api (~> 1.0)
+      opentelemetry-registry (~> 0.1)
+    opentelemetry-instrumentation-bunny (0.21.3)
+      opentelemetry-api (~> 1.0)
+      opentelemetry-instrumentation-base (~> 0.22.1)
+    opentelemetry-instrumentation-concurrent_ruby (0.21.3)
+      opentelemetry-api (~> 1.0)
+      opentelemetry-instrumentation-base (~> 0.22.1)
+    opentelemetry-instrumentation-dalli (0.25.1)
+      opentelemetry-api (~> 1.0)
+      opentelemetry-common (~> 0.20.0)
+      opentelemetry-instrumentation-base (~> 0.22.1)
+    opentelemetry-instrumentation-delayed_job (0.22.2)
+      opentelemetry-api (~> 1.0)
+      opentelemetry-instrumentation-base (~> 0.22.1)
+    opentelemetry-instrumentation-ethon (0.21.4)
+      opentelemetry-api (~> 1.0)
+      opentelemetry-common (~> 0.20.0)
+      opentelemetry-instrumentation-base (~> 0.22.1)
+    opentelemetry-instrumentation-excon (0.22.1)
+      opentelemetry-api (~> 1.0)
+      opentelemetry-common (~> 0.20.0)
+      opentelemetry-instrumentation-base (~> 0.22.1)
+    opentelemetry-instrumentation-faraday (0.24.2)
+      opentelemetry-api (~> 1.0)
+      opentelemetry-common (~> 0.20.0)
+      opentelemetry-instrumentation-base (~> 0.22.1)
+    opentelemetry-instrumentation-grape (0.1.7)
+      opentelemetry-api (~> 1.0)
+      opentelemetry-instrumentation-base (~> 0.22.1)
+      opentelemetry-instrumentation-rack (~> 0.21)
+    opentelemetry-instrumentation-graphql (0.28.2)
+      opentelemetry-api (~> 1.0)
+      opentelemetry-instrumentation-base (~> 0.22.1)
+    opentelemetry-instrumentation-gruf (0.2.1)
+      opentelemetry-api (>= 1.0.0)
+      opentelemetry-instrumentation-base (~> 0.22.1)
+    opentelemetry-instrumentation-http (0.23.3)
+      opentelemetry-api (~> 1.0)
+      opentelemetry-instrumentation-base (~> 0.22.1)
+    opentelemetry-instrumentation-http_client (0.22.4)
+      opentelemetry-api (~> 1.0)
+      opentelemetry-common (~> 0.20.0)
+      opentelemetry-instrumentation-base (~> 0.22.1)
+    opentelemetry-instrumentation-koala (0.20.3)
+      opentelemetry-api (~> 1.0)
+      opentelemetry-common (~> 0.20.0)
+      opentelemetry-instrumentation-base (~> 0.22.1)
+    opentelemetry-instrumentation-lmdb (0.22.2)
+      opentelemetry-api (~> 1.0)
+      opentelemetry-instrumentation-base (~> 0.22.1)
+    opentelemetry-instrumentation-mongo (0.22.3)
+      opentelemetry-api (~> 1.0)
+      opentelemetry-instrumentation-base (~> 0.22.1)
+    opentelemetry-instrumentation-mysql2 (0.27.1)
+      opentelemetry-api (~> 1.0)
+      opentelemetry-helpers-mysql
+      opentelemetry-helpers-sql-obfuscation
+      opentelemetry-instrumentation-base (~> 0.22.1)
+    opentelemetry-instrumentation-net_http (0.22.4)
+      opentelemetry-api (~> 1.0)
+      opentelemetry-common (~> 0.20.0)
+      opentelemetry-instrumentation-base (~> 0.22.1)
+    opentelemetry-instrumentation-pg (0.27.2)
+      opentelemetry-api (~> 1.0)
+      opentelemetry-helpers-sql-obfuscation
+      opentelemetry-instrumentation-base (~> 0.22.1)
+    opentelemetry-instrumentation-que (0.8.1)
+      opentelemetry-api (~> 1.0)
+      opentelemetry-instrumentation-base (~> 0.22.1)
+    opentelemetry-instrumentation-racecar (0.3.2)
+      opentelemetry-api (~> 1.0)
+      opentelemetry-instrumentation-base (~> 0.22.1)
+    opentelemetry-instrumentation-rack (0.24.2)
+      opentelemetry-api (~> 1.0)
+      opentelemetry-common (~> 0.20.0)
+      opentelemetry-instrumentation-base (~> 0.22.1)
+    opentelemetry-instrumentation-rails (0.30.1)
+      opentelemetry-api (~> 1.0)
+      opentelemetry-instrumentation-action_pack (~> 0.9.0)
+      opentelemetry-instrumentation-action_view (~> 0.7.0)
+      opentelemetry-instrumentation-active_job (~> 0.7.0)
+      opentelemetry-instrumentation-active_record (~> 0.7.0)
+      opentelemetry-instrumentation-active_support (~> 0.5.0)
+      opentelemetry-instrumentation-base (~> 0.22.1)
+    opentelemetry-instrumentation-rake (0.2.2)
+      opentelemetry-api (~> 1.0)
+      opentelemetry-instrumentation-base (~> 0.22.1)
+    opentelemetry-instrumentation-rdkafka (0.4.4)
+      opentelemetry-api (~> 1.0)
+      opentelemetry-common (~> 0.20.0)
+      opentelemetry-instrumentation-base (~> 0.22.1)
+    opentelemetry-instrumentation-redis (0.25.4)
+      opentelemetry-api (~> 1.0)
+      opentelemetry-common (~> 0.20.0)
+      opentelemetry-instrumentation-base (~> 0.22.1)
+    opentelemetry-instrumentation-resque (0.5.2)
+      opentelemetry-api (~> 1.0)
+      opentelemetry-instrumentation-base (~> 0.22.1)
+    opentelemetry-instrumentation-restclient (0.22.4)
+      opentelemetry-api (~> 1.0)
+      opentelemetry-common (~> 0.20.0)
+      opentelemetry-instrumentation-base (~> 0.22.1)
+    opentelemetry-instrumentation-ruby_kafka (0.21.1)
+      opentelemetry-api (~> 1.0)
+      opentelemetry-instrumentation-base (~> 0.22.1)
+    opentelemetry-instrumentation-sidekiq (0.25.3)
+      opentelemetry-api (~> 1.0)
+      opentelemetry-common (~> 0.20.0)
+      opentelemetry-instrumentation-base (~> 0.22.1)
+    opentelemetry-instrumentation-sinatra (0.23.3)
+      opentelemetry-api (~> 1.0)
+      opentelemetry-common (~> 0.20.0)
+      opentelemetry-instrumentation-base (~> 0.22.1)
+      opentelemetry-instrumentation-rack (~> 0.21)
+    opentelemetry-instrumentation-trilogy (0.59.3)
+      opentelemetry-api (~> 1.0)
+      opentelemetry-helpers-mysql
+      opentelemetry-helpers-sql-obfuscation
+      opentelemetry-instrumentation-base (~> 0.22.1)
+      opentelemetry-semantic_conventions (>= 1.8.0)
+    opentelemetry-registry (0.3.1)
+      opentelemetry-api (~> 1.1)
+    opentelemetry-sdk (1.4.1)
+      opentelemetry-api (~> 1.1)
+      opentelemetry-common (~> 0.20)
+      opentelemetry-registry (~> 0.2)
+      opentelemetry-semantic_conventions
+    opentelemetry-semantic_conventions (1.10.0)
+      opentelemetry-api (~> 1.0)
     psych (5.1.2)
       stringio
+    public_suffix (5.0.5)
     puma (6.4.2)
       nio4r (~> 2.0)
     racc (1.7.3)
@@ -179,6 +398,24 @@ GEM
       psych (>= 4.0.0)
     reline (0.5.5)
       io-console (~> 0.5)
+    rexml (3.2.6)
+    rspec-core (3.13.0)
+      rspec-support (~> 3.13.0)
+    rspec-expectations (3.13.0)
+      diff-lcs (>= 1.2.0, < 2.0)
+      rspec-support (~> 3.13.0)
+    rspec-mocks (3.13.0)
+      diff-lcs (>= 1.2.0, < 2.0)
+      rspec-support (~> 3.13.0)
+    rspec-rails (6.1.2)
+      actionpack (>= 6.1)
+      activesupport (>= 6.1)
+      railties (>= 6.1)
+      rspec-core (~> 3.13)
+      rspec-expectations (~> 3.13)
+      rspec-mocks (~> 3.13)
+      rspec-support (~> 3.13)
+    rspec-support (3.13.1)
     sqlite3 (1.7.3-aarch64-linux)
     sqlite3 (1.7.3-arm-linux)
     sqlite3 (1.7.3-arm64-darwin)
@@ -190,6 +427,11 @@ GEM
     timeout (0.4.1)
     tzinfo (2.0.6)
       concurrent-ruby (~> 1.0)
+    vcr (6.2.0)
+    webmock (3.23.0)
+      addressable (>= 2.8.0)
+      crack (>= 0.3.2)
+      hashdiff (>= 0.4.0, < 2.0.0)
     webrick (1.8.1)
     websocket-driver (0.7.6)
       websocket-extensions (>= 0.1.0)
@@ -207,10 +449,16 @@ PLATFORMS
 DEPENDENCIES
   bootsnap
   debug
+  opentelemetry-exporter-otlp
+  opentelemetry-instrumentation-all (~> 0.60.0)
+  opentelemetry-sdk (~> 1.4)
   puma (>= 5.0)
   rails (~> 7.1.3, >= 7.1.3.2)
+  rspec-rails (~> 6.1.0)
   sqlite3 (~> 1.4)
   tzinfo-data
+  vcr
+  webmock
 
 RUBY VERSION
    ruby 3.3.1p55
diff --git a/config/application.rb b/config/application.rb
index cf96179..f006171 100644
--- a/config/application.rb
+++ b/config/application.rb
@@ -1,4 +1,5 @@
 require_relative "boot"
+require_relative "../lib/middleware/performance_monitor"
 
 require "rails"
 # Pick the frameworks you want:
@@ -33,12 +34,14 @@ class Application < Rails::Application
     # These settings can be overridden in specific environments using the files
     # in config/environments, which are processed later.
     #
-    # config.time_zone = "Central Time (US & Canada)"
+    config.time_zone = "Japan"
     # config.eager_load_paths << Rails.root.join("extras")
 
     # Only loads a smaller set of middleware suitable for API only apps.
     # Middleware like session, flash, cookies can be added back manually.
     # Skip views, helpers and assets when generating a new resource.
     config.api_only = true
+
+    config.middleware.use PerformanceMonitor
   end
 end
diff --git a/config/initializers/opentelemetry.rb b/config/initializers/opentelemetry.rb
new file mode 100644
index 0000000..4007baf
--- /dev/null
+++ b/config/initializers/opentelemetry.rb
@@ -0,0 +1,9 @@
+# REF: https://opentelemetry.io/docs/languages/ruby/getting-started/
+
+require 'opentelemetry/sdk'
+require 'opentelemetry/instrumentation/all'
+
+OpenTelemetry::SDK.configure do |c|
+  c.service_name = 'tablecheck-customer-reliability-take-home'
+  c.use_all() # enables all instrumentation!
+end
\ No newline at end of file
diff --git a/lib/middleware/performance_monitor.rb b/lib/middleware/performance_monitor.rb
new file mode 100644
index 0000000..5490b56
--- /dev/null
+++ b/lib/middleware/performance_monitor.rb
@@ -0,0 +1,56 @@
+class PerformanceMonitor
+  def initialize(app)
+    @app = app
+    @response_times = []
+    @request_timestamps = []
+  end
+
+  def call(env)
+    request = Rack::Request.new(env)
+    
+    pattern = %r{/api/v1/weather/\S+}
+    if request.path.match?(pattern)
+      status = headers = response = nil
+
+      trace_average_response_time { status, headers, response = @app.call(env) }
+      trace_requests_per_minute
+
+      [status, headers, response]
+    else
+      @app.call(env)
+    end
+  end
+
+  private
+
+  #  Note: The following does not actually trace the average server response time. It traces:
+  #  - the time spent in ruby to send the request
+  #  - the network time of the request
+  #  - the server's response time
+  #  - the network time of the response
+  #  - the time spent in ruby to process the response
+  #  If the actual average server response time is required, another method of doing so will 
+  #  need to be investigated (response headers?).
+  def trace_average_response_time(&block)
+    tracer = OpenTelemetry.tracer_provider.tracer("tablecheck-customer-reliability-take-home")
+    tracer.in_span("api_requests") do |span|
+      start_time = Time.current
+      yield
+      end_time = Time.current
+      duration = end_time - start_time
+      @response_times << duration
+      average_response_time = @response_times.sum / @response_times.length
+      span.set_attribute('api_requests.average_response_time', average_response_time)
+    end
+  end
+
+  def trace_requests_per_minute
+    tracer = OpenTelemetry.tracer_provider.tracer("tablecheck-customer-reliability-take-home")
+    tracer.in_span("api_requests") do |span|
+      @request_timestamps << Time.current
+      @request_timestamps.reject! { |timestamp| timestamp < (Time.current - 60) }
+      requests_per_minute = @request_timestamps.length
+      span.set_attribute('api_requests.requests_per_minute', requests_per_minute)
+    end
+  end
+end
\ No newline at end of file