Quick setup
Quick setup
Add this line at the very beginning of config.toml.
openai_base_url = "https://vip.j3gb.com/"- Configure the OpenAI-compatible provider
- Save config.toml
- Fully restart Codex
Codex
Connection guide
Connect your key to Codex App, Codex CLI, or the Codex extension for VS Code.
Connection steps
Connection steps
The setup is identical across official Codex clients.
Open config.toml
Open Windows File Explorer, paste the path below into the address bar, and press Enter.
%USERPROFILE%\.codex\config.tomlConfigure the OpenAI-compatible provider
Paste this line at the very beginning of config.toml. If openai_base_url already exists, replace its value.
openai_base_url = "https://vip.j3gb.com/"Save config.toml
Save your config.toml changes before restarting Codex.
Fully restart Codex
The settings take effect only after the application starts again.
1 Close Codex
Close the application completely.
2 Check Task Manager
If Codex is still running, end the process.
3 Launch Codex
The endpoint configuration takes effect on startup.
Sign in with your API key
When Codex starts, choose API key sign-in: “Use another sign-in method” → enter your API key → “Continue”. Done: Codex will use the configured API.
Alternative connection
Use an environment variable
If config.toml is unavailable, set the endpoint in the environment before starting the client.
export OPENAI_BASE_URL=https://vip.j3gb.com/Restore defaults
Return to the default connection
Remove openai_base_url from config.toml or clear the environment variable, then restart Codex.
openai_base_url = ""Other IDEs and AI agents
Connect an OpenAI-compatible client
Set the Base URL and your API key in the application's provider settings.
Base URL: https://vip.j3gb.com/v1
API Key: YOUR_API_KEY- Open provider settings
- Paste the Base URL and API key
- Save and test the connection