OpenAI CLI

The OpenAI CLI is the official command-line interface for the OpenAI REST API. It provides actionable error summaries to stderr by default, with options like --format-error json for detailed API error information, including SDK-reported stream error events. Users can also transform error data using --transform-error. For authentication, API-key requests can use mutual TLS client certificates, requiring separate PEM files for the certificate and private key, with specific certificate chain requirements depending on organizational settings.