diff --git a/bootstrap.py b/bootstrap.py
index 6f11f33..c66de77 100644
--- a/bootstrap.py
+++ b/bootstrap.py
@@ -17,7 +17,12 @@ import threading
 import hub_api.helpers.session_helper as sh
 from hub_api.control.session import SessionStart, SessionEnd, KeepSessionAlive
 from hub_api.control.uptime import Uptime
-from hub_api.buildings.retrofit_results import RetrofitResults
+from hub_api.monthly_energy_balance.retrofit_results import RetrofitResults
+from hub_api.workflow.insel_montly_energy_balance import InselMonthlyEnergyBalance
+from hub_api.workflow.costs import Costs
+from hub_api.workflow.energy_plus import EnergyPlus
+from hub_api.energy_plus.idf_generator import IdfGenerator
+
 
 sh.begin_time = datetime.datetime.now()
 app = flask.Flask('cerc_api')
@@ -31,8 +36,16 @@ api.add_resource(SessionStart, '/v1.4/session/start')
 api.add_resource(SessionEnd, '/v1.4/session/end')
 api.add_resource(KeepSessionAlive, '/v1.4/session/keep-alive')
 
-# Buildings
-api.add_resource(RetrofitResults, '/v1.4/buildings/retrofit-results')
+# monthly_energy_balance
+api.add_resource(RetrofitResults, '/v1.4/monthly-energy-balance/retrofit-results')
+
+# energy plus
+api.add_resource(IdfGenerator, '/v1.4/energy-plus/idf-generator')
+
+# workflows
+api.add_resource(Costs, '/v1.4/workflow/costs')
+api.add_resource(EnergyPlus, '/v1.4/workflow/energy-plus')
+api.add_resource(InselMonthlyEnergyBalance, '/v1.4/workflow/insel-monthly-energy-balance')
 
 
 with open("hub_api/docs/openapi-specs.yml", "r") as stream:
@@ -60,6 +73,7 @@ with open("hub_api/docs/openapi-specs.yml", "r") as stream:
 def home():
   return Response(headers={'Access-Control-Allow-Origin': '*'})
 
+
 sh.debug_mode = True
 
 threading.Thread(target=sh.expired_sessions_collector, daemon=True, args="5").start()
diff --git a/hub_api/control/session.py b/hub_api/control/session.py
index 6094c33..3fe5d67 100644
--- a/hub_api/control/session.py
+++ b/hub_api/control/session.py
@@ -52,6 +52,7 @@ class SessionStart(Resource, Config):
 
     return Response(json.dumps({'error': 'unauthorized'}), status=403)
 
+
 class SessionEnd(Resource):
   def __init__(self):
     pass
@@ -66,6 +67,7 @@ class SessionEnd(Resource):
       return Response(json.dumps({'result': 'succeed'}), status=200)
     return Response(json.dumps({'error': 'unauthorized'}), status=403)
 
+
 class KeepSessionAlive(Resource):
   def __init__(self):
     pass
diff --git a/hub_api/docs/openapi-specs.yml b/hub_api/docs/openapi-specs.yml
index eee4996..fd37220 100644
--- a/hub_api/docs/openapi-specs.yml
+++ b/hub_api/docs/openapi-specs.yml
@@ -25,6 +25,7 @@ paths:
             application/json:
               schema:
                 $ref: '#/components/schemas/uptime'
+
   /v1.4/session/start:
     put:
       parameters:
@@ -76,6 +77,7 @@ paths:
             application/json:
               schema:
                 $ref: '#/components/schemas/unauthorized'
+
   /v1.4/session/keep-alive:
     put:
       security:
@@ -108,6 +110,7 @@ paths:
             application/json:
               schema:
                 $ref: '#/components/schemas/unauthorized'
+
   /v1.4/session/end:
     put:
       security:
@@ -140,7 +143,8 @@ paths:
             application/json:
               schema:
                 $ref: '#/components/schemas/unauthorized'
-  /v1.4/buildings/retrofit-results:
+
+  /v1.4/monthly-energy-balance/retrofit-results:
     post:
       security:
         - session_id: [ ]
@@ -158,10 +162,10 @@ paths:
                   description: Cities list
               example: { "cities": [{ "Montreal current status": ["149_part_0_zone_0", "1_part_0_zone_0"]}]}
       tags:
-        - Buildings monthly energy balance meb
-      summary: Retrieve the monthly energy balance results for the given buildings in the given cities
-      operationId: building_monthly_energy_balance
-      description: Retrieve the monthly energy balance results for the given buildings in the given cities
+        - Buildings monthly energy balance monthly_energy_balance
+      summary: Retrieve the monthly energy balance results for the given monthly_energy_balance in the given cities
+      operationId: retrofit_results
+      description: Retrieve the monthly energy balance results for the given monthly_energy_balance in the given cities
       responses:
         '200':
           description: Succeed
@@ -181,6 +185,69 @@ paths:
             application/json:
               schema:
                 $ref: '#/components/schemas/unauthorized'
+
+  /v1.4/workflow/costs:
+    post:
+      security:
+        - session_id: [ ]
+        - token: [ ]
+        - application_uuid: [ ]
+      parameters:
+        [ ]
+      tags:
+        - Costs workflow
+      summary: Perform the costs workflow for the given parameters
+      operationId: costs_workflow
+      description: Perform the costs workflow for the given parameters
+      responses:
+        '500':
+          description:  'Error: INTERNAL SERVER ERROR'
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/not-implemented-error'
+
+  /v1.4/workflow/energy-plus:
+    post:
+      security:
+        - session_id: [ ]
+        - token: [ ]
+        - application_uuid: [ ]
+      parameters:
+        [ ]
+      tags:
+        - Energy+ workflow
+      summary: Perform the Energy+ workflow for the given parameters
+      operationId: energy_plus_workflow
+      description: Perform the Energy+ workflow for the given parameters
+      responses:
+        '500':
+          description:  'Error: INTERNAL SERVER ERROR'
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/not-implemented-error'
+
+  /v1.4/workflow/insel-monthly-energy-balance:
+    post:
+      security:
+        - session_id: [ ]
+        - token: [ ]
+        - application_uuid: [ ]
+      parameters:
+        [ ]
+      tags:
+        - INSEL monthly energy balance workflow
+      summary: Perform the INSEL monthly energy balance for the given parameters
+      operationId: insel_monthly_energy_balance_workflow
+      description: Perform the INSEL monthly energy balance for the given parameters
+      responses:
+        '500':
+          description: 'Error: INTERNAL SERVER ERROR'
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/not-implemented-error'
 components:
   securitySchemes:
     session_id:
@@ -332,4 +399,10 @@ components:
                  }
               ]
            }
-        }
\ No newline at end of file
+        }
+    not-implemented-error:
+      type: object
+      properties:
+        error:
+          type: string
+          example: 'NotImplementedError'
\ No newline at end of file
diff --git a/hub_api/energy_plus/idf_generator.py b/hub_api/energy_plus/idf_generator.py
new file mode 100644
index 0000000..182fcf1
--- /dev/null
+++ b/hub_api/energy_plus/idf_generator.py
@@ -0,0 +1,14 @@
+from flask_restful import Resource
+
+from hub_api.config import Config
+
+
+class IdfGenerator(Resource, Config):
+  def __init__(self):
+    super().__init__()
+
+  def post(self):
+    """
+    API call generate the IDF file for the input data
+    """
+    raise NotImplementedError()
diff --git a/hub_api/buildings/retrofit_results.py b/hub_api/monthly_energy_balance/retrofit_results.py
similarity index 86%
rename from hub_api/buildings/retrofit_results.py
rename to hub_api/monthly_energy_balance/retrofit_results.py
index 913d326..9939db3 100644
--- a/hub_api/buildings/retrofit_results.py
+++ b/hub_api/monthly_energy_balance/retrofit_results.py
@@ -13,7 +13,7 @@ class RetrofitResults(Resource, Config):
 
   def post(self):
     """
-    API call for requesting a specified list of enriched buildings
+    API call for requesting a specified list of enriched monthly_energy_balance
     """
     session_id = request.headers.get('session_id', None)
     token = request.headers.get('token', None)
@@ -34,8 +34,8 @@ class RetrofitResults(Resource, Config):
     city_name = next(iter(results))
     for building_results in results[city_name]:
       values = []
-      for value in building_results['insel meb']:
+      for value in building_results['insel monthly_energy_balance']:
         key = next(iter(value))
         values.append({key: json.loads(value[key])})
-      building_results['insel meb'] = values
+      building_results['insel monthly_energy_balance'] = values
     return Response(json.dumps({'result': 'succeed', 'results': results}), status=200, headers=token)
diff --git a/hub_api/workflow/costs.py b/hub_api/workflow/costs.py
new file mode 100644
index 0000000..35b1607
--- /dev/null
+++ b/hub_api/workflow/costs.py
@@ -0,0 +1,14 @@
+from flask_restful import Resource
+
+from hub_api.config import Config
+
+
+class Costs(Resource, Config):
+  def __init__(self):
+    super().__init__()
+
+  def post(self):
+    """
+    API call for performing the cost workflow
+    """
+    raise NotImplementedError()
diff --git a/hub_api/workflow/energy_plus.py b/hub_api/workflow/energy_plus.py
new file mode 100644
index 0000000..cdb9b8c
--- /dev/null
+++ b/hub_api/workflow/energy_plus.py
@@ -0,0 +1,14 @@
+from flask_restful import Resource
+
+from hub_api.config import Config
+
+
+class EnergyPlus(Resource, Config):
+  def __init__(self):
+    super().__init__()
+
+  def post(self):
+    """
+    API call for performing the energy plus workflow
+    """
+    raise NotImplementedError()
diff --git a/hub_api/workflow/insel_montly_energy_balance.py b/hub_api/workflow/insel_montly_energy_balance.py
new file mode 100644
index 0000000..c7564c4
--- /dev/null
+++ b/hub_api/workflow/insel_montly_energy_balance.py
@@ -0,0 +1,14 @@
+from flask_restful import Resource
+
+from hub_api.config import Config
+
+
+class InselMonthlyEnergyBalance(Resource, Config):
+  def __init__(self):
+    super().__init__()
+
+  def post(self):
+    """
+    API call for performing the monthly energy balance workflow
+    """
+    raise NotImplementedError()