Resend Integrations: Native, Zapier, and API
Resend’s integration surface is built for developers first. The official directory lists 30+ native and partner integrations, heavy on modern backends (Convex, Encore, Trigger.dev, Inngest), notification infrastructure (Novu, Knock, Courier), and headless CMS (Strapi, Payload, Medusa). Beyond that, a first-party Zapier app plus a native n8n node reach thousands of downstream tools, and the REST API with 10 official SDKs covers everything else. Compared to broad marketing suites like Mailchimp (300+ marketing connectors) or Brevo, Resend keeps the directory tight and code-forward, and pairs it with a first-party MCP server for AI agents that most rivals like Postmark and Amazon SES still lack.
At a glance
Integrations directory
Resend’s official directory is grouped below into eight practical buckets. Every card links out to the official listing at resend.com/docs/integrations. Badges reflect how the integration is wired: NATIVE for first-party or partner-maintained modules, API for iPaaS/data-sync connectors built against the REST API, ZAPIER for the Zapier app, and OFFICIAL for the sanctioned AI connector.
Authentication & identity (2)
Route Auth0 transactional emails, verification, magic links, password reset, through Resend for better deliverability than the default SMTP relay.
Deliver Kinde auth emails via Resend with a two-field setup: API key plus verified sending domain.
Notification & messaging infrastructure (5)
Use Resend as the email channel provider inside Novu multi-channel notification workflows.
Deliver Knock notification workflows through Resend as the underlying email transport.
Configure Courier to send email via Resend as a first-class provider, with routing rules across channels.
Multi-channel notifications platform routing its email leg through Resend.
Route Suprsend email templates through the Resend provider inside notification workflows.
Backend, jobs & frameworks (5)
Queue and send transactional emails from Trigger.dev background jobs with retries and observability built in.
Fire Resend emails from Inngest event-driven functions and step workflows.
Call Resend from Convex mutations and scheduled jobs to send email from a reactive backend.
First-class Resend adapter inside Encore services for typed email sending from Go/TypeScript APIs.
Trigger Resend emails from Upstash QStash schedules, queues and delivery events.
CMS & e-commerce (4)
Strapi email provider plugin backed by Resend for admin and content-driven emails.
Native Payload email adapter for Resend transactional delivery from headless projects.
Order confirmations and transactional flows for Medusa e-commerce stores via Resend.
Post SMTP plugin ships a Resend transport for WordPress wp_mail(), the cleanest path for WP sites.
Analytics, metering & monitoring (4)
Send product-analytics-driven emails and sync events between Resend and PostHog cohorts.
Stream Resend email events into Tinybird for real-time analytics dashboards.
Meter Resend email usage inside OpenMeter for usage-based billing pipelines.
Deliver Pulsetic uptime and incident alerts through Resend as the notification channel.
Automation & iPaaS (5)
Trigger Resend sends from thousands of Zapier apps, the fallback when no native connector exists.
n8n ships a first-party Resend node for send/list/manage, ideal for self-hosted automation stacks.
No-code Resend connector for cross-app data workflows and CRM/lead-capture sync.
Automation platform with a Resend connector exposing triggers and send actions.
Bidirectional data sync between Resend contacts/audiences and CRMs like HubSpot or Salesforce.
Developer productivity & no-code (4)
Raycast extension to trigger, inspect and debug Resend directly from macOS.
Coolify self-hosted PaaS sends deployment and admin emails via Resend SMTP.
Send transactional emails from Softr no-code apps using the Resend API.
Fastgen block for sending Resend emails from visual backend flows.
AI & agents (1)
Frequently asked questions
Does Resend have a native WordPress integration?
Yes, through the Post SMTP plugin, which ships a dedicated Resend transport for wp_mail(). Install Post SMTP, pick Resend as the mailer, and paste your Resend API key plus a verified sending domain. WooCommerce, Contact Form 7 and Gravity Forms all keep working. Resend just replaces the underlying SMTP path. Alternative platforms like Mailchimp, Brevo and MailerLite also have first-party WP plugins if you prefer a marketing-suite path.
Can I use Resend with Zapier or n8n?
Both. Resend publishes an official Zapier app that lets thousands of Zapier apps trigger email sends. n8n ships a first-party Resend node with send/list/manage actions, which is the better choice for self-hosted or long-running workflows because you avoid Zapier task quotas. For heavier automation, Trigger.dev and Inngest are more code-native alternatives that Resend also lists as native integrations.
Which authentication providers work with Resend?
Auth0 and Kinde both have native Resend integrations that route their transactional emails (verification, magic links, password reset, invites) through your Resend account. Setup is API-key based on both platforms, add a verified sending domain and paste the Resend key into the identity provider’s email settings. Clerk and Supabase Auth are not listed as native integrations but work over standard SMTP by using smtp.resend.com on port 587 with username "resend" and your API key.
Does Resend integrate with PostHog for product analytics emails?
Yes. The PostHog integration is native and bidirectional: send emails driven by PostHog cohorts and behavioral events, and stream Resend delivery/open/click events back into PostHog for cohort analysis. This is the closest Resend gets to a lifecycle-marketing loop out of the box. Teams needing deeper campaign orchestration can pair Resend with Novu, Knock or Dittofeed, all listed as native providers.
Which CMS platforms have a first-party Resend integration?
Strapi (via email provider plugin), Payload CMS (native email adapter), and Medusa (for e-commerce transactional flows) all ship first-party Resend integrations. For WordPress, use Post SMTP as noted above. Ghost and Sanity are not currently in the directory but can integrate over standard SMTP or via the REST API. If your CMS supports a generic SMTP provider, Resend will always work with smtp.resend.com, port 587, and API-key auth.
Can I use Resend as an email provider inside Novu, Knock or Courier?
Yes, all three notification-infrastructure platforms list Resend as a first-party email channel provider. You point them at your Resend API key, select the sending domain, and they handle template rendering, multi-channel routing (email + push + SMS + in-app), and per-user preferences. This is the recommended architecture when you already run Novu, Knock or Courier and want Resend’s deliverability without rewriting the notification layer. Engagespot and Suprsend follow the same pattern.
This review follows our email infrastructure testing methodology. We disclose affiliate relationships in our editorial independence policy.
