Resend
Arcade.dev LLM tools for sending and managing transactional email via Resend
1.0.4Resend is a transactional email API; this toolkit lets LLMs send, schedule, retrieve, and manage emails through Resend via Arcade.
Capabilities
- Sending & scheduling: Send emails immediately or queue them for future delivery using a
scheduled_attimestamp; returns a Resend-assignedemail_idfor tracking. - Delivery management: Retrieve the current delivery status and metadata for any sent or queued email by its Resend ID.
- Schedule control: Cancel or reschedule queued emails before they are sent by updating or voiding their scheduled timestamp.
Secrets
RESEND_API_KEY — A Resend API key used to authenticate all requests. Obtain it from the Resend API Keys dashboard after creating a Resend account. On that page, click Create API Key, give it a name, select the appropriate sending permission ("Full access" for all toolkit operations, or "Sending access" if you only need to send), and optionally scope it to a verified domain. Copy the key immediately — Resend does not display it again after creation.
For configuring secrets in Arcade, see the Arcade secrets guide or manage them directly at https://api.arcade.dev/dashboard/auth/secrets.
Available tools(4)
| Tool name | Description | Secrets | |
|---|---|---|---|
Cancel a scheduled, not-yet-sent email. | 1 | ||
Retrieve a single email by its Resend ID, including current delivery status. | 1 | ||
Reschedule a not-yet-sent email by updating its scheduled_at timestamp. | 1 | ||
Send a transactional email through Resend.
Returns the Resend-assigned email_id. When scheduled_at is provided, the email is
queued for later delivery instead of sent immediately. | 1 |