How To Use Sendgrid Api Key

We will guide you through the steps of utilizing a SendGrid API key in this article. SendGrid is a well-known SMTP provider on the cloud that simplifies the process of sending a large number of emails for developers. It offers a complimentary plan for basic email sending, along with premium plans offering more advanced capabilities. To access these features, an API key is necessary.

Generating the SendGrid API Key

The first thing you need to do is to generate an API key from your SendGrid account. If you haven’t already, head over to the SendGrid website and sign up for a free account. Once you are logged in, follow the steps below:

  1. Click on the ‘Settings’ tab on the left-hand side.
  2. Select the ‘API Keys’ option.
  3. Click on ‘Create API Key’.
  4. Give your key a name and select ‘Full Access’ or ‘Restricted Access’, depending on your needs.
  5. Click on ‘Create & View’.

Be sure to save your API key somewhere safe because SendGrid won’t show it to you again for security reasons.

Using the SendGrid API Key

Now that you have your SendGrid API key, it’s time to use it. For this example, we will use Python to send a simple email.

First things first, you need to install the SendGrid library. To do this, open your terminal and type pip install sendgrid.

Once the SendGrid library is installed, you can now send an email using the following code:

    import sendgrid
    from sendgrid.helpers.mail import Mail, Email, To, Content

    sg = sendgrid.SendGridAPIClient(api_key='YOUR_SENDGRID_API_KEY')
    from_email = Email("[email protected]")  
    to_email = To("[email protected]")  
    subject = "Sending with SendGrid is Fun"
    content = Content("text/plain", "and easy to do anywhere, even with Python")
    mail = Mail(from_email, to_email, subject, content)

    response =

Remember to replace YOUR_SENDGRID_API_KEY with the API key that you generated earlier. Also, change the from_email and to_email to your desired sender and recipient email addresses. Finally, you can customize the subject and content of your email.


That’s it! You have learned how to generate and use SendGrid API key to send emails. Remember to always keep your API keys secure and never share them with anyone. Happy emailing!