> 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/posthog.md).

# PostHog credentials

You can use these credentials to authenticate the following nodes:

* [PostHog](/integrations/builtin/app-nodes/n8n-nodes-base.posthog.md)

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

Create a [PostHog](https://posthog.com/) account or host PostHog on your server.

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

* API key

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

Refer to [PostHog's API documentation](https://posthog.com/docs/api) for more information about the service.

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

To configure this credential, you'll need:

* The API **URL**: Enter the correct domain for your API requests:
  * On US Cloud, use `https://us.i.posthog.com` for public POST-only endpoints or `https://us.posthog.com` for private endpoints.
  * On EU Cloud, use `https://eu.i.posthog.com` for public POST-only endpoints or `https://eu.posthog.com` for private endpoints.
  * For self-hosted instances, use your self-hosted domain.
  * Confirm yours by checking your PostHog instance URL.
* An **API Key**: The API key you use depends on whether you're accessing public or private endpoints:
  * For public POST-only endpoints, use a [Project API key](https://app.posthog.com/project/settings) from your project's **General** Settings.
  * For private endpoints, use a [Personal API key](https://app.posthog.com/settings/user-api-keys) from your User account's **Personal API Keys** Settings. Refer to [How to obtain a personal API key](https://posthog.com/docs/api#private-endpoint-authentication) for more information.