> AI agents: this is one page from PostHog's docs. Full index of Markdown docs for LLMs: https://posthog.com/llms.txt

# Linking Resend as a source

Canonical URL: https://posthog.com/docs/data-pipelines/sources/resend

> **Cloud region:** This page uses US Cloud hosts. For an EU Cloud project, use `https://eu.posthog.com` instead of `https://app.posthog.com` (app host for links).

## On this page

- [Adding a data source](#adding-a-data-source)
- [Available tables](#available-tables)
- [Configuration](#configuration)
- [Supported tables](#supported-tables)

![](https://res.cloudinary.com/dmukukwp6/image/upload/texture_tan_9608fcca70)

![](https://res.cloudinary.com/dmukukwp6/image/upload/texture_tan_dark_a92b0e022d)

Let AI connect your sources for you

Skip the manual setup — run this in your project and the wizard auto-detects your databases and APIs and connects them to PostHog.

`npx @posthog/wizard warehouse`

![PostHog Wizard hedgehog](https://res.cloudinary.com/dmukukwp6/image/upload/wizard_3f8bb7a240.png)

![](https://res.cloudinary.com/dmukukwp6/image/upload/wizard_3f8bb7a240.png)Let AI connect your sources for you

The Resend connector pulls your Resend data – audiences, broadcasts, contacts, domains, emails, suppressions, email metrics, and broadcast clicked links – into the PostHog data warehouse.

## Adding a data source

1.  Go to the [sources tab](https://app.posthog.com/data-management/sources) of the data pipeline section in PostHog.
2.  Click **\+ New source** and then click **Link** next to Resend.
3.  Next, you need an API key from Resend. In your [Resend API keys settings](https://resend.com/api-keys), create an API key. Grant the key **full access** (or a read-enabled access token) so that all Resend data can be read. Copy the key value (it starts with `re_`).
4.  Back in PostHog, enter the key in the `API key` field and click **Next**.
5.  Select the tables you want to sync, set the sync method and frequency, then click **Import**.

Once the syncs are complete, you can start using Resend data in PostHog.

## Available tables

| Table | Description | Sync method |
| --- | --- | --- |
| `audiences` | Contact audiences in your Resend account | Full refresh |
| `broadcasts` | Broadcasts sent through Resend | Full refresh |
| `broadcast_clicked_links` | Click counts per URL for each broadcast | Full refresh |
| `contacts` | Contacts across each of your audiences | Full refresh |
| `domains` | Sending domains | Full refresh |
| `emails` | Sent emails | Full refresh |
| `email_metrics` | Daily email delivery, bounce, open, click, and complaint metrics | Full refresh |
| `suppressions` | Suppressed email addresses with suppression origin | Full refresh |

**Incremental** tables sync only new or updated records on each run. **Full refresh** tables reload all data on each sync.

## Configuration

| Option | Type | Required |
| --- | --- | --- |
| `Authentication type` | select | Yes |

## Supported tables

| Table | Description | Sync method | Incremental field | Primary key |
| --- | --- | --- | --- | --- |
| `audiences` | A list of contacts you can send broadcast emails to. | Full refresh | — | — |
| `broadcasts` | An email campaign sent to an audience. | Full refresh | — | — |
| `domains` | A sending domain configured in Resend for authenticated email delivery. | Full refresh | — | — |
| `emails` | A transactional email sent through Resend. | Full refresh | — | — |
| `contacts` | A contact belonging to an audience, with subscription status. | Full refresh | — | — |
| `suppressions` | An email address on the team's suppression list, which Resend skips when sending. | Full refresh | — | — |
| `email_metrics` | Account-level email delivery and engagement metrics, one row per UTC day. | Full refresh | — | — |
| `broadcast_clicked_links` | A link clicked in a broadcast, with its total and unique click counts. | Full refresh | — | — |