> For the complete documentation index, see [llms.txt](https://docs.n8n.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.n8n.io/integrations/builtin/credentials/formstacktrigger.md).

# Formstack Trigger credentials

You can use these credentials to authenticate the following nodes:

* [Formstack Trigger](/integrations/builtin/trigger-nodes/n8n-nodes-base.formstacktrigger.md)

## Prerequisites <a href="#prerequisites" id="prerequisites"></a>

Create a [Formstack](https://www.formstack.com/) account.

## Supported authentication methods <a href="#supported-authentication-methods" id="supported-authentication-methods"></a>

* API access token
* OAuth2

## Related resources <a href="#related-resources" id="related-resources"></a>

Refer to [Formstack's API documentation](https://developers.formstack.com/reference/api-overview) for more information about the service.

## Using API access token <a href="#using-api-access-token" id="using-api-access-token"></a>

To configure this credential, you'll need:

* An API **Access Token**: To generate an Access Token, [create a new application](https://www.formstack.com/admin/apiKey/main) in Formstack using the following details:
  * **Redirect URI**: For cloud n8n instances, enter `https://oauth.n8n.cloud/oauth2/callback`.
    * For self-hosted n8n instances, enter the OAuth callback URL for your n8n instance in the format `https://<n8n_url>/rest/oauth2-credential/callback`. For example `https://localhost:5678/rest/oauth2-credential/callback`.
  * **Platform**: Select **Website**.

Once you've created the application, copy the access token either from the applications list or by selecting the application to view its details.

Refer to [Formstack's API Authorization documentation](https://developers.formstack.com/reference/api-overview#obtaining-an-api-key-oauth2-access-token) for more detailed instructions.

{% hint style="info" %}
**Access token permissions**

Formstack ties access tokens to a Formstack user. Access tokens follow Formstack (in-app) user permissions.
{% endhint %}

## Using OAuth2 <a href="#using-oauth2" id="using-oauth2"></a>

To configure this credential, you'll need:

* A **Client ID**
* A **Client Secret**

To generate both of these, [create a new application](https://www.formstack.com/admin/apiKey/main) in Formstack using the following details:

* **Redirect URI**: Copy the **OAuth Redirect URL** from the n8n credential to enter here.
  * For self-hosted n8n instances, enter the OAuth callback URL for your n8n instance in the format `https://<n8n_url>/rest/oauth2-credential/callback`. For example `https://localhost:5678/rest/oauth2-credential/callback`.
* **Platform**: Select **Website**.

Once you've created the application, select it from the applications list to view the **Application Details**. Copy the **Client ID** and **Client Secret** and add them to n8n. Once you've added both, select the **Connect my account** button to begin the OAuth2 flow and authorization process.

Refer to [Formstack's API Authorization documentation](https://developers.formstack.com/reference/api-overview#obtaining-an-api-key-oauth2-access-token) for more detailed instructions.

{% hint style="info" %}
**Access token permissions**

Formstack ties access tokens to a Formstack user. Access tokens follow Formstack (in-app) user permissions.
{% endhint %}