Add MagmaRouter to Open WebUI.
Open WebUI is protocol-first: it treats any OpenAI-compatible endpoint as an OpenAI connection. Add MagmaRouter in the admin UI or through environment variables.
Admin Settings, Connections
Go to Settings, then Admin, then Connections. Next to "Manage OpenAI API Connections", add a connection:
- URL: https://magmarouter.com/v1
- API Key: your rl-... key
Leave Model IDs empty to auto-detect the catalogue, or set an allowlist to show only the models you want. Save, and the models appear in the selector.
Or environment variables
OPENAI_API_BASE_URL=https://magmarouter.com/v1 OPENAI_API_KEY=rl-...
Open WebUI's default base URL is https://api.openai.com/v1, so keep the /v1 on the MagmaRouter URL. It caches the model list; saving the connection refreshes it immediately.