OpenAI Codex CLI

Terminal agent · OpenAI Responses

Full guide

Format	Where to set it up
OpenAI Responses	~/.codex/config.toml (the user-level file only: model_provider/model_providers are ignored in a project’s .codex/config.toml); the key goes in the variable named by env_key

Setup

Copy the configuration and replace sk-... with your key from the Ailoot Dashboard. Prefer storing the key in the environment variable AILOOT_API_KEY, if the application supports it.

Before starting, request GET /v1/models with your Ailoot key. Choose an exact model ID whose methods include POST /v1/responses, then use that ID in the configuration. For agents, also check tool support and the features required by your client version.

~/.codex/config.toml

model = "gpt-6.1-sol"
model_provider = "ailoot"

[model_providers.ailoot]
name = "Ailoot"
base_url = "https://api.ailoot.ai/v1"
env_key = "AILOOT_API_KEY"
wire_api = "responses"

export AILOOT_API_KEY="sk-..."
codex

Example model: gpt-6.1-sol. Choose any other model from the catalog — check that it supports the format you need.

Good to know

Test

For the OpenAI format, the URL is https://api.ailoot.ai/v1 (or the full path if the application asks for a full URL).
Ask a short question. If you get an error, check the code and Request ID, then consult Errors and limits.
404 immediately after setup almost always means the URL is wrong: an extra or missing /v1.
402 — insufficient balance for the reserve. Agents reserve more than chat: why.

Application documentation: https://learn.chatgpt.com/docs/config-file/config-advanced

Still have questions? Send your Request ID and a description — we'll help you troubleshoot.Contact support