curl --request PUT \
  --url https://api.usezombie.com/v1/workspaces/{workspace_id}/credentials/llm \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "provider": "<string>",
  "api_key": "<string>"
}
'

{
  "error": {
    "code": "<string>",
    "message": "<string>",
    "details": {}
  },
  "request_id": "3c90c3cc-0d44-4b50-8888-8dd25736052a"
}