api.openai.com
api.openai.com is the OpenAI API endpoint. Many different apps can send requests to it.
Short answer
The OpenAI API endpoint used by applications making API requests.
Block with care
Blocking this endpoint can prevent applications from using the OpenAI API.
- Matches
api.openai.com
A name with *. covers every name under it: *.push.apple.com matches 1-courier.push.apple.com.
What it serves
OpenAI's API uses this host for requests from client applications and scripts.
The process name in Kilobat helps identify which program made a connection on this Mac.
A connection does not show the text or other content sent inside an encrypted request.
Request volume depends on the application and the work it performs; a connection alone does not reveal cost.
Processes that use it
What breaks if you block it
Block with care
Blocking this endpoint can prevent applications from using the OpenAI API.
What breaks if you block it
- Apps and scripts using this API endpoint may fail to make requests.
- Features powered by those requests may stop responding until access returns.
With Kilobat Pro and the network filter, you can block a host for every app or for one app: in Connections, select a connection and choose Block. Apple’s own services are never blocked by Kilobat’s Protection lists.
Notes
OpenAI also operates other endpoints. Blocking one hostname does not necessarily block every OpenAI service.
If a connection is unexpected, inspect the originating process before deciding whether to block it.
Sources
Checked on 3 November 2026.