> For the complete documentation index, see [llms.txt](https://doc.duaer.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://doc.duaer.com/integrations/builtin/credentials/resend.md).

# Set up a Resend API key in Duaer

Create a Resend API key and paste it into a Resend API credential in Duaer. Sending access sends email; contacts and webhooks need Full access.
## How do you create a Resend credential in Duaer?

1. On the [Resend API Keys page](https://resend.com/api-keys), create an API key. Sending access is enough to send email; contacts, segments, broadcasts and Resend Trigger need Full access.
2. In Duaer, create a Resend API credential under Credentials, paste the key and save.
3. On the Resend node or Resend Trigger, select that credential under Credential to connect with. Node notes are under [Use Resend in Duaer](/integrations/builtin/app-nodes/duaer-nodes-base.resend.md).

## Sending access or Full access?

- Sending access: sends email only. Enough for workflows that use Send and Send Batch.
- Full access: also reads email and manages contacts, segments, broadcasts and webhooks. Resend Trigger and those operations need it.

## What if the test fails when you save?

Duaer reads Resend’s domain list to test the connection. A Sending access key cannot read it, so the test shows a failure, but sending still works. When a Full access key fails the test, the key is wrong or was deleted.

Verify the sender’s domain on the Resend Domains page first, or Resend refuses to send.
## Questions

### What access does the Resend credential in Duaer need?

Sending access is enough to send email; contacts, segments, broadcasts and Resend Trigger need Full access.

### Can Duaer still send through Resend when the credential test fails?

With a Sending access key, yes: the test fails but sending works. With a Full access key, a failed test means the key is wrong.

## Related

- [Resend email automation: send and schedule in Duaer](https://doc.duaer.com/integrations/builtin/app-nodes/duaer-nodes-base.resend.md)
- [Resend webhooks in Duaer: act on email events](https://doc.duaer.com/integrations/builtin/trigger-nodes/duaer-nodes-base.resendtrigger.md)