Alright, first things first, log into your Airtable account and whip up a new base. Make sure this base has all the fields and records you want to keep updated in real-time.

1. Head over to the base where you want to set up the webhook.
2. Click on the "Automations" tab at the top.
3. Hit "Add an automation" and pick your trigger type (like "When a record is created" or "When a record is updated").
4. Tweak your trigger settings to fit your needs.
5. Add an action by clicking "Add action" and then choose "Run script."

1. Choose "Run script" as the action in the automation.

2. Click "Edit code" to start writing your custom script.

3. Use this sample script as a starting point:

   ```javascript
   let webhookURL = 'YOUR_WEBHOOK_URL';
   let payload = {
   records: input.config().record
   };

   let response = await fetch(webhookURL, {
   method: 'POST',
   headers: {
   'Content-Type': 'application/json'
   },
   body: JSON.stringify(payload)
   });

   if (!response.ok) {
   output.set('error', Error: ${response.statusText});
   } else {
   output.set('success', Webhook sent successfully);
   }
   ```

4. Swap out 'YOUR_WEBHOOK_URL' with the URL from the service you're sending the webhook to.

1. Click "Test run" to see if everything's working as it should.
2. Check the response from the webhook service to make sure the payload is getting through correctly.
3. Tweak the script or trigger settings if needed.

1. Flip the automation switch to "On" to get it going.
2. Save your automation.

1. Keep an eye on your webhook service to make sure it's getting the data from Airtable as expected.
2. Deal with any errors that pop up to keep those real-time updates flowing smoothly.

By following these steps, you can set up Airtable to send real-time updates via webhooks to any endpoint you choose.