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Give customer-controlled Codex commands and MCP server API calls two stable source IPs for protected APIs. Configure the requesting client and keep both assigned addresses on the destination allowlist.

Use QuotaGuard on the execution host that makes the protected request.

  • Command clients: Configure curl or your HTTP library; environment variables affect only clients that honor them.
  • MCP calls: Configure the server's onward API client. Codex-to-MCP and MCP-to-API are separate connections.
  • Network controls: Keep Codex permissions, sandbox policy and destination authentication in place.
  • Both addresses: Allowlist the two dashboard IPs and verify the actual client, not just a separate terminal test.
  • Product fit: Static supports HTTPS requests through an HTTP CONNECT proxy with compatible clients. Shield adds TLS on the proxy hop. Enterprise provides dedicated IPs when exclusive addresses are required.

Read the complete Codex setup guide for configuration and troubleshooting.

Comparing platforms? See the complete guide to static IPs on any PaaS platform.

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