> ## Documentation Index
> Fetch the complete documentation index at: https://docs.usertour.io/llms.txt
> Use this file to discover all available pages before exploring further.

# PostHog

> Stream Usertour events into PostHog as they happen.

The PostHog integration streams **events out**: every event Usertour tracks arrives in your PostHog project in real time, under the same user IDs your own instrumentation reports. See [what gets sent](/integrations/overview#what-gets-sent).

## Connect

Go to **Settings → Integrations → PostHog** and follow the [standard connect flow](/integrations/overview#connect-a-provider) with:

* **Credential:** the **Project API key**, from PostHog project settings — it starts with `phc_`. A *personal* API key (`phx_`) is not the same thing; the capture endpoint rejects it.
* **Data residency:** US or EU, matching your PostHog Cloud region.

## Stream events to PostHog

Streaming starts with the first save and is controlled by the switch at the top of the page. Delivery, retries, and the message log are described in the [overview](/integrations/overview#delivery-and-reliability).

## Troubleshooting

* **Everything is rejected:** check the key prefix — `phx_` (personal API key) is rejected by PostHog's capture endpoint; you need the project key (`phc_`).
* Everything else: see the [overview troubleshooting](/integrations/overview#troubleshooting).