Developer Tools

Resend Product Plan

Developer-first email API with React Email templates, webhooks, and delivery analytics.

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Open the editable plan instantly, or carry its requirements into a generated system Architecture.

Email sending API

React Email (JSX templates)

Delivery webhooks

Domain verification

Analytics dashboard

Batch sending

Attachments

Custom headers

Team management

99.9% deliverability SLA

As a developer, I can send transactional emails via API

As a developer, I can build email templates with React

As a team, I can track delivery, opens, and clicks

As a developer, I can receive webhooks for email events

As a developer, I can verify custom domains

TypeScriptReactNode.jsPostgreSQLRedisKafkaAWS SESCloudflareKubernetes

Category	Requirement	Target
Performance	Delivery	< 2s from API call to inbox for major providers
Scalability	Volume	Handle burst sending of 10K+ emails per second
Availability	API	99.9%: transactional emails are critical
Observability	Tracking	Delivery, open, click, bounce tracking per email

MVPEmail API

Send email APIDomain verificationWebhooksDashboard

v1.0React Email

JSX email templatesBatch sendingAnalyticsAttachmentsCustom headers

v2.0Platform

AudiencesBroadcastsScheduled sendsA/B testingTeam management

Deliverability rate: > 99%

API latency P99: < 200ms

Developer activation: send first email < 5 minutes

NPS: > 70

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Open the editable Product Plan first, then carry it into Architecture and Plan & Ship when it is ready.