OpenAI Codex CLI - MaxAPI Developer

Codex CLI supports custom providers through config.toml.

Install

npm install -g @openai/codex
export MAXAPI_API_KEY="YOUR_API_KEY"
mkdir -p ~/.codex

Configure the provider

model = "YOUR_MODEL_ID"
model_provider = "maxapi"
disable_response_storage = true

[model_providers.maxapi]
name = "MaxAPI"
base_url = "https://api.maxapi.ai/v1"
env_key = "MAXAPI_API_KEY"
wire_api = "responses"

Start

codex

Store API keys only on trusted devices. Never commit a real key to Git or share it with others.

Codex CLI requires the Responses protocol. Select a model and route that support /v1/responses.