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

# Incoming Webhook

Incoming webhooks let you programmatically create items in Onset by sending a simple HTTP POST request. You can use them to create releases, milestones, or subscribers.

When you create an incoming webhook, Onset generates a unique URL that accepts a JSON payload. Each payload follows the same structure as the [Onset API](https://docs.onset.io/developers/rest-api-reference) schema and includes the relevant fields for the target item type.

There are three types of incoming webhooks:

* **Release** – create a new release entry with title, version, description, and related metadata.
* **Milestone** – create a milestone in your roadmap.
* **Subscriber** – add a new subscriber to your list.

<Warning>
  Your webhook URL contains a secret token. Treat it like a password — do not
  share or expose it publicly (e.g., in version control, client-side code, or
  logs).
</Warning>