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Resend

by Resend

Send transactional emails, manage templates, domains, and track delivery with a developer-first email API

CommunicationFree / PaidAPI keyemailtransactionalnotificationstemplatesdeveloper

How agents use Resend

  • Agent sends personalized transactional emails (password resets, confirmations, alerts) in response to system events
  • Agent notifies users or team members via email when a workflow step completes or requires action
  • Agent delivers batch email notifications to a segment of users with dynamic content
  • Agent checks delivery status of previously sent emails to detect bounces or failures
  • Agent adds new subscribers from a CRM or form to an audience for email campaigns

Agent actions

Send EmailSend a transactional email to one or more recipients

Inputs: to, subject, html, text, from, cc, bcc, replyTo, headers, tags

Returns: id, success

Send Batch EmailsSend up to 100 emails in a single API call

Inputs: emails

Returns: data, count

Get EmailRetrieve the status and details of a sent email by ID

Inputs: emailId

Returns: email, status

List EmailsList recently sent emails with optional filters

Inputs: limit

Returns: emails, total

List DomainsList all verified sending domains for the account

Returns: domains

Create AudienceCreate an audience (contact list) for managing subscribers

Inputs: name

Returns: audienceId, audience

Add ContactAdd a contact to an audience

Inputs: audienceId, email, firstName, lastName, unsubscribed

Returns: contactId, contact

Example workflows

1

Welcome email on sign-up

Send a branded welcome email with onboarding instructions when a new user registers

2

Order confirmation

Send HTML order confirmation emails triggered by ecommerce events

About Resend

Vendor
Resend
Pricing Always review details with the vendor
Free / PaidFree tier: 3,000 emails/month, 1 domain. Pro from $20/mo for higher volume
Authentication
API key
Rate limit Always review details with the vendor
100 requests / minute
Compatible nodes
AgentResourceOutput

Build an AI workflow with Resend

Use the Agentic Planner to design, visualize, and connect Resend with your other tools.

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