To add an OpenTable book widget to your website all you need is your Restaurant ID. If you don't know your Restaurant ID you can follow the steps in this guide to bring up the Restaurant that you want to generate the widget for. At this point you'll have the restaurant listed along with it's ID.

You only need to copy the number outlined in red below (Excluding the #):

Once you have the Restaurant ID available we're ready to move to the editor to add the booking Widget

​To add the booking widget to your website:
​
Login to your account and then navigate to the editor.

Select App Integrations
​
​

And then select Third-Party Integrations
​
​

From here click the Add a third party integration button and find OpenTable in the popup that appears:
​
​

You should now see a field where you can enter your Restaurant ID from earlier:
​
​

After adding the Restaurant ID press back, this will take you back to your list of added integrations. Toggling the switch will enable the ability to add the widget to your pages.
​

Navigate to the page you want to add the widget, and click the add a section button. You will be able to see your widget under the category "Section Integrations".
​
​

Once you've added it to the page that you want the widget to appear on click publish and it will now appear on your live site.