Your tools
Open WebUI
OPENAI_API_BASE_URL and OPENAI_API_KEY, or Admin → Connections.
The two facts, in Open WebUI’s names
terminal
export OPENAI_API_BASE_URL=https://api.conifer.build/v1
export OPENAI_API_KEY=$CONIFER_API_KEYOpen WebUI reads OPENAI_API_BASE_URL, not OPENAI_BASE_URL. Restart the container after setting them.
Admin → Connections → OpenAI
API URL: https://api.conifer.build/v1. API key: $CONIFER_API_KEY. The model list is GET /v1/models for that key. Pick claude-haiku-4-5 or any other returned id.