diff --git a/README.md b/README.md
index 811ef203..41f892be 100644
--- a/README.md
+++ b/README.md
@@ -114,6 +114,14 @@ RSpec::OpenAPI.enable_example = false
 # Change `info.version`
 RSpec::OpenAPI.application_version = '1.0.0'
 
+# Set `headers` - generate parameters with headers for request
+RSpec::OpenAPI.headers = %w[X-Authorization-Token]
+
+# Set `server_urls` - generate servers of a schema file
+RSpec::OpenAPI.server_urls = %w[
+  http://localhost:3000
+]
+
 # Generate a comment on top of a schema file
 RSpec::OpenAPI.comment = <<~EOS
   This file is auto-generated by rspec-openapi https://github.com/k0kubun/rspec-openapi
diff --git a/lib/rspec/openapi.rb b/lib/rspec/openapi.rb
index 66b40078..41afbcd7 100644
--- a/lib/rspec/openapi.rb
+++ b/lib/rspec/openapi.rb
@@ -7,8 +7,10 @@ module RSpec::OpenAPI
   @enable_example = true
   @description_builder = -> (example) { example.description }
   @application_version = '1.0.0'
+  @headers = []
+  @server_urls = []
 
   class << self
-    attr_accessor :path, :comment, :enable_example, :description_builder, :application_version
+    attr_accessor :path, :comment, :enable_example, :description_builder, :application_version, :headers, :server_urls
   end
 end
diff --git a/lib/rspec/openapi/default_schema.rb b/lib/rspec/openapi/default_schema.rb
index accfaa2a..40262d89 100644
--- a/lib/rspec/openapi/default_schema.rb
+++ b/lib/rspec/openapi/default_schema.rb
@@ -6,6 +6,7 @@ def build(title)
         title: title,
         version: RSpec::OpenAPI.application_version,
       },
+      servers: RSpec::OpenAPI.server_urls.map { |url| { url: url } } || [],
       paths: {},
     }.freeze
   end
diff --git a/lib/rspec/openapi/record.rb b/lib/rspec/openapi/record.rb
index a7d19578..f04743b7 100644
--- a/lib/rspec/openapi/record.rb
+++ b/lib/rspec/openapi/record.rb
@@ -5,6 +5,7 @@
   :query_params,          # @param [Hash]    - {:query=>"string"}
   :request_params,        # @param [Hash]    - {:request=>"body"}
   :request_content_type,  # @param [String]  - "application/json"
+  :request_headers,       # @param [Array]  - [["header_key1", "header_value1"], ["header_key2", "header_value2"]]
   :summary,               # @param [String]  - "v1/statuses #show"
   :tags,                  # @param [Array]   - ["Status"]
   :description,           # @param [String]  - "returns a status"
diff --git a/lib/rspec/openapi/record_builder.rb b/lib/rspec/openapi/record_builder.rb
index c882d3af..90809e57 100644
--- a/lib/rspec/openapi/record_builder.rb
+++ b/lib/rspec/openapi/record_builder.rb
@@ -34,6 +34,12 @@ def build(context, example:)
         nil
       end
 
+    request_headers = RSpec::OpenAPI.headers.each_with_object([]) do |header, headers_arr|
+      header_key = header.gsub(/-/, '_').upcase
+      header_value = request.get_header(['HTTP', header_key].join('_')) || request.get_header(header_key)
+      headers_arr << [header, header_value] if header_value
+    end
+
     RSpec::OpenAPI::Record.new(
       method: request.request_method,
       path: path,
@@ -41,6 +47,7 @@ def build(context, example:)
       query_params: request.query_parameters,
       request_params: raw_request_params(request),
       request_content_type: request.media_type,
+      request_headers: request_headers,
       summary: summary,
       tags: tags,
       description: RSpec::OpenAPI.description_builder.call(example),
diff --git a/lib/rspec/openapi/schema_builder.rb b/lib/rspec/openapi/schema_builder.rb
index 1c655d1d..9b877ec7 100644
--- a/lib/rspec/openapi/schema_builder.rb
+++ b/lib/rspec/openapi/schema_builder.rb
@@ -67,6 +67,16 @@ def build_parameters(record)
       }.compact
     end
 
+    record.request_headers.each do |key, value|
+      parameters << {
+        name: build_parameter_name(key, value),
+        in: 'header',
+        required: true,
+        schema: build_property(try_cast(value)),
+        example: (try_cast(value) if example_enabled?),
+      }.compact
+    end
+
     return nil if parameters.empty?
     parameters
   end
diff --git a/spec/rails/doc/openapi.yaml b/spec/rails/doc/openapi.yaml
index 6f064264..9d2f3612 100644
--- a/spec/rails/doc/openapi.yaml
+++ b/spec/rails/doc/openapi.yaml
@@ -7,6 +7,7 @@ openapi: 3.0.3
 info:
   title: rspec-openapi
   version: 1.0.0
+servers: []
 paths:
   "/tables":
     get:
@@ -42,6 +43,12 @@ paths:
               type: string
         example:
           price: '0'
+      - name: X-Authorization-Token
+        in: header
+        required: true
+        schema:
+          type: string
+        example: token
       responses:
         '200':
           description: returns a list of tables
diff --git a/spec/requests/rails_spec.rb b/spec/requests/rails_spec.rb
index 80620024..e31e9fe6 100644
--- a/spec/requests/rails_spec.rb
+++ b/spec/requests/rails_spec.rb
@@ -3,6 +3,7 @@
 require File.expand_path('../rails/config/environment', __dir__)
 require 'rspec/rails'
 
+RSpec::OpenAPI.headers = %w[X-Authorization-Token]
 RSpec::OpenAPI.path = File.expand_path('../rails/doc/openapi.yaml', __dir__)
 RSpec::OpenAPI.comment = <<~EOS
   This file is auto-generated by rspec-openapi https://github.com/k0kubun/rspec-openapi
@@ -15,7 +16,8 @@
   describe '#index' do
     context it 'returns a list of tables' do
       it 'with flat query parameters' do
-        get '/tables', params: { page: '1', per: '10' }, headers: { authorization: 'k0kubun' }
+        get '/tables', params: { page: '1', per: '10' },
+                       headers: { authorization: 'k0kubun', "X-Authorization-Token": 'token' }
         expect(response.status).to eq(200)
       end
 
diff --git a/spec/roda/doc/openapi.yaml b/spec/roda/doc/openapi.yaml
index e4783380..c54d7864 100644
--- a/spec/roda/doc/openapi.yaml
+++ b/spec/roda/doc/openapi.yaml
@@ -3,6 +3,7 @@ openapi: 3.0.3
 info:
   title: rspec-openapi
   version: 1.0.0
+servers: []
 paths:
   "/roda":
     post: