toolcompass.

Find your next AI tool

Search by product name or task. Press Escape to close.

OpenCharm pricing

● Identity checked

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.

Updated 2026-10-09View sources
Official website
Category
Voice interface for AI agents
Free access
Free open-source desktop software; existing agent/model and optional hardware costs remain.
API access
ACP/OpenAI-compatible agent connections and MCP extensions documented; one agent at a time.

Understand the total cost

OpenCharm pricing & plans

Desktop software

Free

Open-source software; hardware port is planned

Allowance and restrictions
macOS/Windows interface; bring an existing agent; hardware optional and separate.

Price history

No retained pricing changes yet. A current price alone does not establish a historical trend.

How this profile is supported

Official product information

Product identity and relevant official-source evidence reviewed individually.

Read original source ↗
Costs and constraints

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.

OpenCharm pricing questions

Is OpenCharm free?

Yes. OpenCharm has an ongoing free plan. Free open-source desktop software; existing agent/model and optional hardware costs remain.

How much does OpenCharm cost?

OpenCharm is listed as free. No paid plan with a published price was found.

Does OpenCharm have an API?

API or developer access is mentioned. ACP/OpenAI-compatible agent connections and MCP extensions documented; one agent at a time.