Get your free HEXA account first by signing up on hexa.kaleyra.io.

• Login to your HEXA account.
• Click Create New API Key.
• Enter the Title and Whitelisted IP Address (this will allow access from only ip's provided, by default all IP's are allowed).
• Click Save. The API key is created successfully.
• Click Download to download the API details.

Note: Keep your API key safe to prevent misuse or unauthorized access. If you misplace your API key the system does not display the API key details again. You will have to create another API key.