/v1), your Sideren key, and
catalog ids as model ids.
One command
Configure
OpenClaw registers custom providers in~/.openclaw/openclaw.json under
models.providers. Use api: "openai-completions" (openai-responses also works, since
the gateway serves /v1/responses):
~/.openclaw/openclaw.json
sideren/@sdn/gpt-oss-120b as your agent model. Keep the provider key
(sideren) and the model prefix in sync — a mismatch is the usual cause of a “no API key
found” error. The file is JSON5, so you can also add this block in the raw JSON5 editor
under Settings → Advanced in the local UI at http://127.0.0.1:18789.