> ## Documentation Index
> Fetch the complete documentation index at: https://docs.transmit.dev/llms.txt
> Use this file to discover all available pages before exploring further.
# Quickstart
> Send your first email with Transmit in under 5 minutes
## Get Your API Key
Sign up at [transmit.dev/sign-up](https://transmit.dev/sign-up)
Go to **Settings** → **API Keys** in your dashboard
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
```bash theme={null}
npm install transmitdev
```
## Send Your First Email
```typescript TypeScript theme={null}
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: 'hello@yourdomain.com',
to: 'user@example.com',
subject: 'My First Email',
html: `
Hello from Transmit!
This is my first email sent via the Transmit API.
`
});
console.log('Email sent!', response.id);
} catch (error) {
console.error('Error sending email:', error);
}
}
sendEmail();
```
```bash cURL theme={null}
curl -X POST https://api.transmit.dev/v1/emails \
-H "Authorization: Bearer $TRANSMIT_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"from": "hello@yourdomain.com",
"to": "user@example.com",
"subject": "My First Email",
"html": "Hello from Transmit!
This is my first email sent via the Transmit API.
"
}'
```
## Verify Your Domain
Before sending emails in production, you need to verify your domain:
Go to **Settings** → **Domains** and add your sending domain
Copy the provided DNS records (SPF, DKIM, DMARC)
Verification usually takes 24-48 hours
Once verified, you'll receive free trial credits automatically
See our [Domain Verification Guide](/guides/domain-verification) for detailed instructions.
## Next Steps
Explore all email API endpoints
Create reusable email templates
Set up webhooks for delivery events
View full SDK documentation