Desktop software
Free
Open-source software; hardware port is planned
- Allowance and restrictions
- macOS/Windows interface; bring an existing agent; hardware optional and separate.
Voice interface for AI agents · Official-source review 2026-10-09 UTC
OpenCharm adds a visual face, push-to-talk voice and approval interface to an existing AI agent. Its desktop application is documented for macOS and Windows; a separate build-it-yourself hardware port is planned rather than required.
Understand the total cost
Desktop software
Free
Open-source software; hardware port is planned
No retained pricing changes yet. A current price alone does not establish a historical trend.
Product identity and relevant official-source evidence reviewed individually.
Read original source ↗Software is advertised as free and open source. Optional board hardware is about $32 before shipping, but the device port is still planned. Existing agent/model access is separate. Default spoken replies may use Microsoft services; local voice is an alternative. Latency, microphone controls, pairing and privacy claims were not independently tested.
Read original source ↗Facts apply to the named version and check date. Send a sourced correction if something changed.
Yes. OpenCharm has an ongoing free plan. Free open-source desktop software; existing agent/model and optional hardware costs remain.
OpenCharm is listed as free. No paid plan with a published price was found.
API or developer access is mentioned. ACP/OpenAI-compatible agent connections and MCP extensions documented; one agent at a time.