OpenAI GPT Actions and IP egress ranges

22-10-2025

OpenAI:

• https://platform.openai.com/docs/actions/production/ip-egress-ranges
• https://en.wikipedia.org/wiki/Classless_Inter-Domain_Routing
• https://openai.com/chatgpt-actions.json - ChatGPT will call your action from an IP address from one of the following CIDR blocks

Internal:

• WAF rules
  • rules which define how to inspect HTTP/HTTPS web traffic (requests) to an application