# Authentication Types Available

Supported authentication methods:

* OAuth2
* OAuth1
* Username and password
* BasicAuth
* API Key
* Bearer Token
* AWS signature
* Refreshable tokens (all kinds of OAuth2 derivatives)
* No authentication (simple requests via the Rest Helper)

{% content-ref url="/pages/-Meo45ZmUYRfYENB79Pf" %}
[Setting up authentication](/connectors/authentication/setting-up-authentication.md)
{% endcontent-ref %}

{% content-ref url="/pages/-Meo4VF0GvmcAk8I9Rc4" %}
[How are API versioning and API updates handeled?](/connectors/authentication/how-are-api-versioning-and-api-updates-handeled.md)
{% endcontent-ref %}


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