published

Resend Email API

Resend Email API offers developers a reliable platform to send transactional and marketing emails efficiently with an easy-to-use RESTful interface.

Developed by Resend

Live API
99.95%Uptime
200msLatency
1.2kStars
API KeyAuth
NoCredit Card
RESTStyle
v1Version
API Endpoints

Reference for available routes, request structures, and live examples.

Sends transactional emails with templating support

Full Endpoint URL
https://api.resend.com/emails
Implementation Example
curl -X POST 'https://api.resend.com/emails' \
  -H 'Authorization: Bearer YOUR_API_KEY'
Request Payload
{
  "to": "user@example.com",
  "from": "onboarding@resend.dev",
  "html": "<strong>Hello!</strong>",
  "subject": "Welcome to Our Service"
}
Expected Response
{
  "id": "abc123def456",
  "to": "user@example.com",
  "from": "onboarding@resend.dev",
  "created_at": "2023-07-18T15:30:00Z"
}
Version:v1
Limit:100 emails/hour
Real-World Applications
  • Sending password resets and account notificationsOptimized Capability
  • Delivering marketing newsletters and promotional emailsOptimized Capability
  • Integrating email services into web applications and mobile appsOptimized Capability
  • Managing automated email communications for user engagementOptimized Capability
Advantages
  • ✓ Supports multiple programming languages with official SDKs
  • ✓ Provides multi-region email sending for global reach
  • ✓ Includes idempotency and IP warming features to improve deliverability
  • ✓ Rich observability via logs and webhooks for monitoring
Limitations
  • ✗ No detailed public rate limit and quota documentation
  • ✗ Some advanced features may require higher pricing tiers
  • ✗ Limited to REST API style, no GraphQL support
  • ✗ Free tier limits might not be sufficient for high-volume users

FAQs

API Specifications

v1
Pricing Model
Pay-as-you-go with monthly plans
Credit Card
Not Required
Response Formats
JSON
Supported Languages
7 Languages
SDK Support
Node.js, Python, Ruby, Go, Java
Time to Hello World

Under 10 minutes

Rate Limit

1000 requests per minute

Free Tier Usage

Allows sending up to 100 emails per month free

Use Case: Best For

Developers needing scalable, reliable email delivery with multi-language SDK support

Not Recommended For

Users requiring GraphQL API or very high email volumes on free plans

Resources

Documentation Official Website Pricing Details Postman Collection
#transactional#email

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