How to send email with AutoSend API - AutoSend Documentation

Once you’ve created a transactional email template, you can use it in your application via the AutoSend API.

API Endpoint

POST https://api.autosend.com/v1/mails/send

Authentication

Include your API key in the Authorization header:

Authorization: Bearer YOUR_API_KEY

Single Email with Template

Request:

curl -X POST https://api.autosend.com/v1/mails/send \
 -H "Authorization: Bearer YOUR_API_KEY" \
 -H "Content-Type: application/json" \
 -d '{
"to": {
"email": "[email protected]",
"name": "Jane Doe"
},
"from": {
"email": "[email protected]",
"name": "Your Company"
},
"subject": "Welcome to Our Platform!",
"html": "<h1>Welcome!</h1><p>Thanks for signing up.</p>"
}'

Response:

{
	"success": true,
	"data": {
		"emailId": "698afb75ff4bc5466e3a797a",
		"message": " Email queued successfully.",
		"totalRecipients": 1
	}
}

Quickstart Guides

Explore step-by-step guides for sending emails with AutoSend across popular frameworks and platforms:

Auth0

Deliver Auth0 authentication emails through the AutoSend API using a Custom Email Provider Action.

Better Auth

Send authentication emails for verification, password reset, and OTP with Better Auth.

Convex

Use the official AutoSend Convex component for transactional emails with queueing, retries, and webhook.

QStash

Use Upstash QStash to queue, schedule, retry, and reliably deliver emails through AutoSend.

Supabase

Send transactional emails from Supabase Edge Functions using AutoSend.

API Keys

Send emails from Auth0 with a Custom Email Provider Action

​API Endpoint

​Authentication

​Single Email with Template

​Quickstart Guides