Desktop software
Free
Open-source software; hardware port is planned
- Allowance and restrictions
- macOS/Windows interface; bring an existing agent; hardware optional and separate.
OpenCharm
● Identity checkedVoice 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.
- 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.
Is OpenCharm right for you?
A good fit for
Fits users who already run a compatible agent and want an additional visible/voice interface without treating it as a new underlying model.
Before you choose
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.
Workflow and handoff
Choose the desktop application and connect one authorized agent through the documented daemon/interface. Configure voice and approval preferences, then inspect the underlying agent’s work. Hardware construction remains a separate project. No app, daemon or firmware was installed during this review.
Pricing and practical limits
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.
Review method
Relevant official-source evidence reviewed individually on 2026-10-09 UTC (October 10 in India). Selected product artwork inspected visually. No hands-on vendor application test was performed. Performance, security and plan enforcement were not independently tested.
What it can do
Features & capabilities
Unknown is different from unavailable. Each fact carries its own evidence.
| Capability | Value | Evidence | Checked |
|---|---|---|---|
| Documented workflow | 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. | Facts sourced | 2026-10-09 |
Understand the total cost
OpenCharm pricing & plans
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Frequently asked questions
Was this product hands-on tested?
No. The listing uses dated official-source evidence and visual artwork review. Unconfirmed pricing, allowances and integrations are stated explicitly.
What is OpenCharm used for?
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.
Does OpenCharm have a free plan?
Free open-source desktop software; existing agent/model and optional hardware costs remain.. This record lists ongoing free access; check the plan limits before starting.
How much does OpenCharm cost?
No paid monthly price is listed; this record treats the product as free to start. See the plan cards for entitlements, billing commitments and seat minimums.
Can I use OpenCharm through an API?
ACP/OpenAI-compatible agent connections and MCP extensions documented; one agent at a time.. API access and subscription access may have different terms; consult the linked sources.
What should I check before choosing it?
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.
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.