diff --git a/Forderungen.py b/Forderungen.py
new file mode 100644
index 0000000..b773cb7
--- /dev/null
+++ b/Forderungen.py
@@ -0,0 +1,23 @@
+from dbpool import getConnection, getOne, getMany
+
+def get_forderungen_by_mieter(mieter_id):
+    return getMany("""
+SELECT id, 
+       mieter as mieter_id, 
+       datum,
+       betrag,
+       kommentar
+  FROM forderung
+  WHERE mieter = ?
+""", [ mieter_id ], "Forderung")
+
+def get_forderung(id):
+    return getOne("""
+SELECT id, 
+       mieter as mieter_id
+       datum,
+       betrag,
+       kommentar
+  FROM forderung
+  WHERE id = ?
+""", [ id ], "Forderung")
diff --git a/Zahlungen.py b/Zahlungen.py
new file mode 100644
index 0000000..fb1a4ac
--- /dev/null
+++ b/Zahlungen.py
@@ -0,0 +1,25 @@
+from dbpool import getConnection, getOne, getMany
+
+def get_zahlungen_by_mieter(mieter_id):
+    return getMany("""
+SELECT id, 
+       mieter as mieter_id, 
+       datum_ist,
+       datum_soll
+       betrag,
+       kommentar
+  FROM zahlung
+  WHERE mieter = ?
+""", [ mieter_id ], "Zahlung")
+
+def get_zahlung(id):
+    return getOne("""
+SELECT id, 
+       mieter as mieter_id
+       datum_ist,
+       datum_soll
+       betrag,
+       kommentar
+  FROM zahlung
+  WHERE id = ?
+""", [ id ], "Zahlung")
diff --git a/swagger.yaml b/swagger.yaml
index daa2274..af7bb4b 100644
--- a/swagger.yaml
+++ b/swagger.yaml
@@ -109,6 +109,86 @@ paths:
           description: Mieter not found
         500:
           description: Some server error
+  /hv/forderung/{id}:
+    get:
+      tags: [ "Forderung" ]
+      operationId: Forderungen.get_forderung
+      summary: Returns Forderung by id
+      parameters:
+        - name: id
+          in: path
+          type: integer
+          required: true
+      responses:
+        200:
+          description: Successful response.
+          schema:
+            $ref: '#/definitions/Forderung'
+        404:
+          description: Forderung not found
+        500:
+          description: Some server error
+  /hv/mieter/{mieter_id}/forderungen:
+    get:
+      tags: [ "Mieter", "Forderung" ]
+      operationId: Forderungen.get_forderungen_by_mieter
+      summary: Returns all Forderungen for a given Mieter
+      parameters:
+        - name: mieter_id
+          in: path
+          type: integer
+          required: true
+      responses:
+        200:
+          description: Successful response.
+          schema:
+            type: array
+            items:
+              $ref: '#/definitions/Forderung'
+        404:
+          description: No Forderung available
+        500:
+          description: Some server error
+  /hv/zahlung/{id}:
+    get:
+      tags: [ "Zahlung" ]
+      operationId: Zahlungen.get_zahlung
+      summary: Returns Zahlung by id
+      parameters:
+        - name: id
+          in: path
+          type: integer
+          required: true
+      responses:
+        200:
+          description: Successful response.
+          schema:
+            $ref: '#/definitions/Zahlung'
+        404:
+          description: Zahlung not found
+        500:
+          description: Some server error
+  /hv/mieter/{mieter_id}/zahlungen:
+    get:
+      tags: [ "Mieter", "Zahlung" ]
+      operationId: Zahlungen.get_zahlungen_by_mieter
+      summary: Returns all Zahlungen for a given Mieter
+      parameters:
+        - name: mieter_id
+          in: path
+          type: integer
+          required: true
+      responses:
+        200:
+          description: Successful response.
+          schema:
+            type: array
+            items:
+              $ref: '#/definitions/Zahlung'
+        404:
+          description: No Zahlung available
+        500:
+          description: Some server error
 
 definitions:
   Objekt:
@@ -167,3 +247,34 @@ definitions:
         type: string
       auszug:
         type: string
+  Forderung:
+    description: Forderung type
+    type: object
+    properties:
+      id:
+        type: integer
+      mieter_id:
+        type: integer
+      datum:
+        type: string
+      betrag:
+        type: number
+      kommentar:
+        type: string
+  Zahlung:
+    description: Zahlung type
+    type: object
+    properties:
+      id:
+        type: integer
+      mieter_id:
+        type: integer
+      datum_ist:
+        type: string
+      datum_soll:
+        type: string
+      betrag:
+        type: number
+      kommentar:
+        type: string
+