For an OpenAI provider setting, use the OpenAI-compatible option and a base URL ending in /v1. The exact variable names and custom-provider support can change between Copilot releases, so compare them with the Setup page and the version Aster has qualified.
export COPILOT_PROVIDER_TYPE=anthropicexport COPILOT_PROVIDER_BASE_URL=https://api.asterwise.devexport COPILOT_PROVIDER_API_KEY='your Aster API key'export COPILOT_MODEL=aster-codecopilot