Create Your First Contact

Start adding customers to your SendX account

Welcome to SendX

This quick start guide will help you:

• Set up your SendX account
• Identify your first contact using the REST API
• Get ready to send your first email

Let’s dive in!

1. Set Up Your SendX Account

Start by creating a SendX account if you haven’t already:

Create Account →

After registering, log in and navigate to:

Settings → API & Webhooks → Copy your Team API Key

This key is required for all API interactions. Keep it safe and never expose it in public code repositories.

2. Identify a Contact

Use the identify method of the SendX REST API to start adding your contacts to the SendX App, this would allow you to send email to that contact later:

cURL

curl --request POST \
  --url https://api.sendx.io/api/v1/rest/contact/identify \
  --header 'Content-Type: application/json' \
  --header 'X-Team-ApiKey: <YOUR_TEAM_API_KEY>' \
  --data '{
  "firstName": "John",
  "lastName": "Doe",
  "email": "[e-mail]",
  "newEmail": "[e-mail]",
  "company": "Acme Inc.",
  "tags": [
    "new",
    "cool"
  ],
  "customFields": {
    "favorite_color": "blue",
    "favorite_food": "pizza"
  }
}'

This would create a new contact with the following details:

First Name: John
Last Name: Doe
Email: [e-mail]
New Email: [e-mail]
Company: Acme Inc.
Tags: new, cool 
Custom Fields: favorite_color: blue, favorite_food: pizza

Identify REST API

For more details on the identify method, check out the API reference.

Try it in API Playground

Once you have identified your contact, you can start sending emails to them.

Next Steps

Once your contact is identified, you can start sending emails to them using the SendX API.

Want to go further?

• Send transactional emails
• Run campaigns and newsletters
• Segment contacts with tags and custom fields

Explore everything in our API Reference.