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REST API Reference

SDK Integrations

Integrate MailSend cleanly in your codebase using our lightweight client libraries.

Docs Summary

  • What this page explains: Integrating client libraries for Node.js/TypeScript and Go.
  • Who should use it: Software engineers writing backend code integrations.
  • Related MailSend feature: Node.js and Go SDK wrappers
  • Common use cases: Programmatic notifications, backend alerts
  • Related docs: Email API, Webhooks, Introduction

We support drop-in SDKs for popular runtimes and packages. Keep your API keys safe by storing them in environment variables (`MAILSEND_API_KEY`).

javascript
import { MailSend } from '@mailsend/node';

const client = new MailSend({ apiKey: process.env.MAILSEND_API_KEY });

await client.emails.send({
  from: 'Acme <hello@acme.com>',
  to: ['customer@gmail.com'],
  subject: 'Order Confirmation #9401',
  html: '<p>Your order is on the way!</p>'
});
go
package main

import (
	"context"
	"github.com/mailsend/mailsend-go"
)

func main() {
	client := mailsend.NewClient("ms_live_abc123")

	params := &mailsend.SendEmailParams{
		From:    "hello@acme.com",
		To:      []string{"customer@gmail.com"},
		Subject: "Go SDK Confirm",
		Html:    "<strong>Sent using Go!</strong>",
	}

	_, err := client.Emails.Send(context.Background(), params)
	if err != nil {
		panic(err)
	}
}
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