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+# CAMARA OAS Sections Guidelines 
+
+## Table of Contents
+
+   * [Introduction](#introduction)
+   * [Conventions](#conventions)
+   * [OAS Sections](#oas-sections)
+     + [OpenAPI Version](#version)
+     + [Info Object](#info-object)
+       + [Title](#title)
+       + [Description](#description)
+       + [Version](#version)
+       + [Terms of service](#tos)
+       + [Contact information](#contact)
+       + [License](#license)
+       + [Extension field](#ext-field)
+     + [Servers](#servers)
+     + [Paths](#paths)
+     + [Components](#components)
+       + [Schemas ](#schemes)
+       + [Responses](#responses)
+       + [Parameters](#parameters)
+       + [Request bodies](#req-bodies)
+       + [Headers](#headers)
+       + [Security schemes](#sec-schemes)
+     + [Security](#security)
+     + [Tags](#tags)
+     + [External Documentation](#ext-doc)
+
+## Introduction
+Camara uses OpenAPI Specification (OAS) to describe its APIs. The below guidelines specify the restrictions or conventions to be followed within the OAS yaml by all Camara APIs (referred below simply as APIs).
+
+## Conventions
+The keywords "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT", "SHOULD", "SHOULD NOT", "RECOMMENDED", "NOT RECOMMENDED", "MAY", and "OPTIONAL" in this document are to be interpreted as described in RFC 2119.
+
+## OAS Sections
+
+### OpenAPI Version
+APIs shall use the OAS version 3.0.3.
+
+### Info Object
+An example of the info object is shown below:
+```
+info:
+  title: Number Verification
+  description: |
+    This API allows to verify that the provided mobile phone number is the one used in the device. It
+    verifies that the user is using a device with the same mobile phone number as it is declared.
+  version: 1.0.1
+  license:
+    name: Apache 2.0
+    url: https://www.apache.org/licenses/LICENSE-2.0.html
+  x-camara-commonalities: 0.4.0
+  
+```
+#### Title
+Title describes the API shortly. The title shall not include the term "API" in it.
+
+#### Description
+No special restrictions specified in Camara.
+
+#### Version
+APIs shall use the [versioning-format](https://lf-camaraproject.atlassian.net/wiki/x/3yLe) as specified by the release management working group.
+
+#### Terms of service
+Terms of service shall not be included. API providers may add this content when documenting their APIs.
+
+#### Contact information
+Contact information shall not be included. API providers may add this content when documenting their APIs.
+
+#### License
+The license object shall include the following fields:
+```
+license
+  name: Apache 2.0
+  url: https://www.apache.org/licenses/LICENSE-2.0.html
+```
+
+#### Extension field
+The API shall specify the commonalities release number they are compliant to, by including the x-camara-commonalities extension field.
+
+### Servers
+The servers object shall have the following content:
+```
+servers:
+  - url: {apiRoot}/<api-name>/<api-version>
+    variables:
+      apiRoot:
+        default: http://localhost:9091
+        description: API root, defined by the service provider, e.g. `api.example.com` or `api.example.com/somepath`
+```
+<b>API-Name</b>  
+API-Name is what is specified as the base path, prior to the API version, in the servers[*].url property. If more than one server object instances are listed, each servers[*].url property must have the same string for the API name and version in respective instance
+
+For the below example, the API-name would be location-verification.
+ ```
+ /location-verification/v0
+```
+
+ </br>
+
+<b>API-Version </b> </br>
+
+API-Version shall be same as the [Version](#version) in the info object.
+
+### Paths
+No special restrictions or changes specified in Camara.
+