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

# API overview

> Overview of the harp API and available integrations.

harp's public REST API is under development. This section documents the integration points that are available today.

## Current integrations

> [card] [Email webhooks](https://onbound.mintlify.site/api-reference/webhooks.md)
>
> Receive real-time notifications for email events.

> [card] [Tracking endpoints](https://onbound.mintlify.site/api-reference/tracking.md)
>
> Open and click tracking for outbound emails.

## Authentication

Public API authentication is coming soon. Current webhook endpoints use signature verification (see individual endpoint docs).

> [!NOTE]
>
> Interested in API access? Contact us at [support@tryharp.si](mailto:support@tryharp.si) and we'll notify you when the public API launches.

## Rate limits

Rate limits will be published alongside the public API. Webhook endpoints are not rate-limited on the receiving side.


This documentation is built and hosted on [Mintlify](https://mintlify.com), a developer documentation platform.