diff --git a/resources/api/openapi.yml b/resources/api/openapi.yml
index a67bb771..85f4dda1 100644
--- a/resources/api/openapi.yml
+++ b/resources/api/openapi.yml
@@ -22,7 +22,9 @@ servers:
 
 tags:
   - name: news
-    description: News and Meeting announcements
+    description: News and meeting announcements
+  - name: shift
+    description: Event shifts and location
 
 components:
   securitySchemes:
@@ -52,6 +54,15 @@ components:
             $ref: '#/components/schemas/Error'
 
   schemas:
+    AngelType:
+      type: object
+      properties:
+        id:
+          type: integer
+          example: 42
+        name:
+          type: string
+          example: Angel
     Error:
       type: object
       properties:
@@ -90,11 +101,124 @@ components:
           type: string
           nullable: true
           example: 2023-05-13T23:00:00.000000Z
+    Room:
+      type: object
+      properties:
+        id:
+          type: integer
+          example: 42
+        name:
+          type: string
+          example: Heaven
+    Shift:
+      type: object
+      properties:
+        id:
+          type: integer
+          example: 42
+        title:
+          type: string
+          example: Cleanup the venue
+        description:
+          type: string
+          example: You clean up the venue after the event, its fun, we promise!
+        start:
+          type: string
+          example: 2023-05-13T14:00:00.000000Z
+        end:
+          type: string
+          example: 2023-05-13T16:00:00.000000Z23
+        entries:
+          type: array
+          items:
+            $ref: '#/components/schemas/ShiftEntry'
+        room:
+          $ref: '#/components/schemas/Room'
+        shift_type:
+          $ref: '#/components/schemas/ShiftType'
+        created_at:
+          type: string
+          nullable: true
+          example: 2023-05-13T13:37:42.000000Z
+        updated_at:
+          type: string
+          nullable: true
+          example: 2023-05-13T23:00:00.000000Z
+    ShiftEntry:
+      type: object
+      properties:
+        user:
+          $ref: '#/components/schemas/User'
+        type:
+          $ref: '#/components/schemas/AngelType'
+    ShiftType:
+      type: object
+      properties:
+        id:
+          type: integer
+          example: 42
+        name:
+          type: string
+          example: Build-Up
+        description:
+          type: string
+          example: This is a generic build-up shift, mostly involving heavy lifting.
+    User:
+      type: object
+      properties:
+        id:
+          type: integer
+          example: 42
+        name:
+          type: string
+          example: HelpfulUser
+        first_name:
+          type: string
+          nullable: true
+          example: Helpful
+        last_name:
+          type: string
+          nullable: true
+          example: User
+        pronoun:
+          type: string
+          nullable: true
+          example: They/Them
+        contact:
+          type: object
+          properties:
+            dect:
+              type: string
+              nullable: true
+              example: 4242
+            mobile:
+              type: string
+              nullable: true
+              example: 1234567890
 
 security:
   - bearerAuth: [ ]
 
 paths:
+  /angeltypes:
+    get:
+      tags:
+        - shift
+      summary: Get a list of angeltypes
+      responses:
+        '200':
+          description: Ok
+          content:
+            application/json:
+              schema:
+                type: array
+                items:
+                  $ref: '#/components/schemas/AngelType'
+        '401':
+          $ref: '#/components/responses/UnauthorizedError'
+        '403':
+          $ref: '#/components/responses/ForbiddenError'
+
   /news:
     get:
       tags:
@@ -113,3 +237,49 @@ paths:
           $ref: '#/components/responses/UnauthorizedError'
         '403':
           $ref: '#/components/responses/ForbiddenError'
+
+  /rooms:
+    get:
+      tags:
+        - shift
+      summary: Get a list of rooms
+      responses:
+        '200':
+          description: Ok
+          content:
+            application/json:
+              schema:
+                type: array
+                items:
+                  $ref: '#/components/schemas/Room'
+        '401':
+          $ref: '#/components/responses/UnauthorizedError'
+        '403':
+          $ref: '#/components/responses/ForbiddenError'
+
+  /rooms/{id}/shifts:
+    parameters:
+      - name: id
+        in: path
+        required: true
+        description: the room identifier
+        example: 42
+        schema:
+          type: integer
+    get:
+      tags:
+        - shift
+      summary: Get all shifts in the room
+      responses:
+        '200':
+          description: Ok
+          content:
+            application/json:
+              schema:
+                type: array
+                items:
+                  $ref: '#/components/schemas/Shift'
+        '401':
+          $ref: '#/components/responses/UnauthorizedError'
+        '403':
+          $ref: '#/components/responses/ForbiddenError'
diff --git a/resources/api/readme.md b/resources/api/readme.md
index 786cc614..9c41daf1 100644
--- a/resources/api/readme.md
+++ b/resources/api/readme.md
@@ -3,4 +3,5 @@ Here you can find the OpenAPI files that describe the Engelsystem API.
 Please be aware that the API is still in Beta and might change every second (but we try to keep it consistent during events ;))
 
 ## Links
-* [OpenAPI Spec](https://swagger.io/specification/)
+* [Engelsystem OpenApi](openapi.yml)
+* [OpenAPI format specification](https://swagger.io/specification/)