Send emails and manage contacts with Resend.
Resend is a Sim integration in the Email category. Sim is the AI workspace where teams build and deploy AI agents. Sim's Resend integration provides 16 tools and 8 triggers that AI agents can use inside Sim's visual workflow builder. Resend connects with an API key. Free to start at sim.ai.
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Integrate Resend into your workflow. Send emails, retrieve email status, manage contacts, and view domains. Requires API Key.
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Open your workspace, drag a Resend block onto the workflow builder, and paste in your Resend API key.
Pick the tool you need, wire in an AI agent for reasoning or data transformation, and run. Your Resend automation is live.
Add a Resend trigger to a Sim agent and it starts a run whenever one of these Resend events occurs.
Trigger workflow when an email is sent
Trigger workflow when an email is delivered
Trigger workflow when an email bounces
Trigger workflow when an email is marked as spam
Trigger workflow when an email is opened
Trigger workflow when a link in an email is clicked
Trigger workflow when an email fails to send
Trigger on Resend webhook events we subscribe to (email lifecycle, contacts, domains—see Resend docs). Flattened email fields may be null for non-email events; use <code>data</code> for the full payload.
Ready-to-use templates featuring Resend. Click any to build it instantly.
16 Resend tools available to Sim agents.
Send an email using your own Resend API key and from address
Retrieve details of a previously sent email by its ID
Cancel a scheduled email before it is sent
Create a new contact in Resend
List all contacts in Resend
Retrieve details of a contact by ID or email
Update an existing contact in Resend
Delete a contact from Resend by ID or email
Create a new audience in Resend
Retrieve details of an audience by ID
List all audiences in Resend
Delete an audience from Resend by ID
Create a broadcast email for an audience in Resend
Send a broadcast immediately or schedule it for later
Retrieve details of a broadcast by ID
List all verified domains in your Resend account
Sim's Resend integration adds 16 tools and 8 triggers to the AI agents you build in Sim's visual workflow builder. Send emails and manage contacts with Resend.
