Depending on your environment, you may need to whitelist our fixed IP addresses.
The domain api.omise.co may resolve to one of the following IPs.
22.214.171.124 126.96.36.199 188.8.131.52 184.108.40.206
Webhooks may be delivered from one of the following IPs.
220.127.116.11 18.104.22.168 22.214.171.124
Downloading this list
For your convenience, we also provide the above lists of IPs as JSON.