# Authentication

{% hint style="info" %}
For a more in-depth look at the different API Connector authentication methods, you may be interested in the API Connector manual article:\
\
Article: [API Connector authentication methods](/~/changes/KJh7wUmvooVFeg4izJFB/help-guides/integrations/api/the-api-connector/authentication.md)
{% endhint %}

### Authentication methods

There are many different ways to authenticate. Most API providers will have documentation available online that specifies their authentication method and many require you to generate a unique API token.

<table data-header-hidden><thead><tr><th width="259"></th><th></th></tr></thead><tbody><tr><td>Method</td><td>Description</td></tr><tr><td>None or self-handled</td><td>No authentication required</td></tr><tr><td>Private key in URL</td><td>The private key is included as a parameter in the URL</td></tr><tr><td>Private key in header</td><td>The private key is included as an HTTP header in the request</td></tr><tr><td>HTTP Basic Auth</td><td>The username and password is sent in plain text</td></tr><tr><td>OAuth2 Password Flow</td><td>The username and password is sent and receives an access token in return</td></tr><tr><td>OAuth2 User-Agent Flow</td><td>Similar to OAuth2 Password Flow, but for user-agents</td></tr><tr><td>OAuth2 Custom Token</td><td>Thr custom token is sent to the server for verification</td></tr><tr><td>JSON Web Token (JWT)</td><td>A JSON web tokenis sent to the server for verification</td></tr><tr><td>Client-side SSL certificate</td><td>Your app presents a SSL certificate to the server for verification</td></tr></tbody></table>

## Other ways to learn

<details>

<summary>User manual articles</summary>

* Article series: [The API Connector](/~/changes/KJh7wUmvooVFeg4izJFB/help-guides/integrations/api/the-api-connector.md)
  * Article: [Authentication](/~/changes/KJh7wUmvooVFeg4izJFB/help-guides/integrations/api/the-api-connector/authentication.md)

</details>

<details>

<summary>Video lessons</summary>

* [Intro to APIs & the API Connector](https://www.youtube.com/watch?v=nO8PSqeJaWk\&t=745s)
* [How to Setup Google API Keys](https://www.youtube.com/watch?v=ouGT55o68ho)
* Webinar: [The API Connector](https://www.youtube.com/watch?v=DXsL4FjAhd8\&t=2s)

</details>


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