Quickstart

Send your first email with Transmit in under 5 minutes

Get Your API Key

1. Create an Account

   Sign up at transmit.dev/sign-up

2. Navigate to API Keys

   Go to Settings → API Keys in your dashboard

3. Generate a New Key

   Click Create API Key and copy it somewhere safe

Never commit your API key to version control or expose it in client-side code.

Install the SDK

npm install transmitdev

Send Your First Email

TypeScript

import { Transmit } from 'transmitdev';

const client = new Transmit({
  apiKey: process.env.TRANSMIT_API_KEY
});

async function sendEmail() {
  try {
    const response = await client.emails.send({
      from: '[e-mail]',
      to: '[e-mail]',
      subject: 'My First Email',
      html: `
        <h1>Hello from Transmit!</h1>
        <p>This is my first email sent via the Transmit API.</p>
      `
    });

    console.log('Email sent!', response.id);
  } catch (error) {
    console.error('Error sending email:', error);
  }
}

sendEmail();

curl -X POST https://api.transmit.dev/v1/emails \
  -H "Authorization: Bearer $TRANSMIT_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "from": "[e-mail]",
    "to": "[e-mail]",
    "subject": "My First Email",
    "html": "<h1>Hello from Transmit!</h1><p>This is my first email sent via the Transmit API.</p>"
  }'

Verify Your Domain

Before sending emails in production, you need to verify your domain:

1. Add Your Domain

   Go to Settings → Domains and add your sending domain

2. Add DNS Records

   Copy the provided DNS records (SPF, DKIM, DMARC)

3. Wait for Verification

   Verification usually takes 24-48 hours

4. Get Trial Credits

   Once verified, you’ll receive free trial credits automatically

See our Domain Verification Guide for detailed instructions.

Next Steps

API Reference

Explore all email API endpoints

Email Templates

Create reusable email templates

Webhooks

Set up webhooks for delivery events

SDKs

View full SDK documentation