We are adding new webhook server IP addresses: 54.156.199.20.
Additionally, we are deprecating 54.164.77.56.
If you manage a list of IPs that you expect Trello webhooks to come from, the list should be updated to include these changes.
All webhook request will come from one of the following IP addresses/subnets:
107.23.104.115
107.23.149.70
54.152.166.250
54.156.199.20
54.209.149.230
18.234.32.224/28
We continue to recommend that you check the x-trello-webhook header included in each webhook request to validate that that the webhook came from Trello’s servers. For more on validating signatures, check out the Webhook Signatures section in webhooks’ documentation.