Guide to configuring Codex
Guide to Installing and Configuring Codex
Windows Guide
System Requirements
Installation Steps
Install Git Bash — visit Git - Downloads to download the version suitable for your system, then keep clicking "Next" to complete the installation.
Visit the official Node.js website to download and install the latest LTS version.
Open Command Prompt (CMD) or PowerShell and run:
Open Command Prompt (CMD) or PowerShell and run:
API Configuration
Visit key4u.shop and perform the following steps:
2. Configuration file
Important note: Please replace sk-xxxbelow with the actual API key you created on key4u.shop!
Important note: Please replacesk-xxxbelow with the actual API key you created on key4u.shop!
Important note: Please replacesk-xxxbelow with the actual API key you created on key4u.shop!
1.
.codex folder in the current user directory, e.g.: C:\Users\testuser\.codex.(Note: If you cannot see this folder, it means "Show hidden items" is not enabled in Windows — please enable it in File Explorer first.)
2. If the
.codex folder does not exist, please create it manually, then create two files config.toml and auth.json inside it.3.
sk-xxx with your real SK).auth.json:{"OPENAI_API_KEY": "sk-xxx"}config.toml (copy the content below directly):model_reasoning_effort can be set to high, medium, or low, corresponding to the model's thinking effort level.model_provider = "api111"
model = "gpt-5-codex"
model_reasoning_effort = "high"
disable_response_storage = true
preferred_auth_method = "apikey"
[model_providers.api111]
name = "api111"
base_url = "https://api.key4u.shop/v1"
wire_api = "responses"Start codex
Then navigate to your project folder:
VSCode codex plugin
codex in the VSCode Extension Store.After installation, it will appear in the sidebar.
Mac Guide
System Requirements
Installation Steps
Open Terminal and run (may need to add
sudo):Open Terminal and run:
API Configuration
Visit key4u.shop and perform the following steps:
Important note: Please replace sk-xxxbelow with the actual API key you created on key4u.shop!
Important note: Please replacesk-xxxbelow with the actual API key you created on key4u.shop!
Important note: Please replacesk-xxxbelow with the actual API key you created on key4u.shop!
1.
2.
auth.json:i to enter insert mode, paste the following content (replace sk-xxx with your key), then press ESC, type :wq and press Enter to save and exit.{"OPENAI_API_KEY": "sk-xxx"}3.
config.toml:i to enter insert mode, paste the following content, then press ESC, type :wq and press Enter to save and exit.model_provider = "key4u"
model = "gpt-5-codex"
model_reasoning_effort = "high"
disable_response_storage = true
preferred_auth_method = "apikey"
[model_providers.key4u]
name = "key4u"
base_url = "https://api.key4u.shop/v1"
wire_api = "responses"Start codex
Then navigate to your project folder:
VSCode codex plugin
codex in the VSCode Extension Store.Linux Guide
System Requirements
Installation Steps
Open Terminal and run:
Open Terminal and run:
API Configuration
Visit key4u.shop and perform the following steps:
Important note: Please replace sk-xxxbelow with the actual API key you created on key4u.shop!
Important note: Please replacesk-xxxbelow with the actual API key you created on key4u.shop!
Important note: Please replacesk-xxxbelow with the actual API key you created on key4u.shop!
1.
2.
auth.json:i to enter insert mode, paste the following content (replace sk-xxx with your key), then press ESC, type :wq and press Enter to save and exit.{"OPENAI_API_KEY": "sk-xxx"}3.
config.toml:i to enter insert mode, paste the following content, then press ESC, type :wq and press Enter to save and exit.model_provider = "api111"
model = "gpt-5-codex"
model_reasoning_effort = "high"
disable_response_storage = true
preferred_auth_method = "apikey"
[model_providers.api111]
name = "api111"
base_url = "https://api.key4u.shop/v1"
wire_api = "responses"Start codex
Then navigate to your project folder:
VSCode codex plugin
codex in the VSCode Extension Store.Common Issues
1.
Modified at 2026-03-08 05:42:17