Codex CLI

Codex CLI can use OpenAI-compatible endpoints. The essential DDTokens settings are the API key, Base URL, and model name.

Prerequisites

• Codex CLI is installed.
• You have created a DDTokens API key.
• Your account can call OpenAI-compatible models.

Configuration

Configuration varies between Codex CLI versions. Prefer the OpenAI-compatible settings supported by your current version:

export OPENAI_API_KEY="$DDDT_API_KEY"
export OPENAI_BASE_URL="https://apiddt.com/v1"

If your version uses OPENAI_API_BASE, you can also set:

export OPENAI_API_BASE="https://apiddt.com/v1"

Select a Model

Start with a lightweight model to verify the connection:

gpt-4o-mini

After the call succeeds, switch to a stronger model or one better suited to coding tasks.

Verify

Run a simple task in a test directory:

codex "explain what this project does"

If the command fails, check:

• The Base URL includes /v1.
• The API key is valid.
• The model name is available in the DDTokens dashboard.
• Your Codex CLI version supports custom OpenAI-compatible endpoints.