Question 1

Is OneStone free?

Accepted Answer

Yes — the desktop app is a free download for Linux and Windows. You bring your own AI provider account (or run fully local models with Ollama), so the only costs are whatever your chosen provider charges you directly.

Question 2

Where does my data live?

Accepted Answer

With the desktop app, on your machine: conversations, agent memory, projects, contacts, and analytics are stored locally. It only talks to the services you use — your AI provider, plus email, phone pairing, web search and update checks when you use them — and sends no telemetry. The optional web dashboard (https://app.onestoneai.com) stores what you create there, or sync from a linked desktop, in your own private cloud space; you can delete that account and its data at any time. See the [Privacy Policy](#privacy).

Question 3

Which AI providers does it support?

Accepted Answer

7 providers out of the box: Anthropic, OpenAI, Google Gemini, Groq, Mistral, OpenRouter, Ollama. You can switch the model per channel — chat, routines, and summarization can each run on a different model — and Ollama support means you can run entirely offline.

Question 4

Do I need API keys?

Accepted Answer

You can use API keys from any supported provider, a Claude subscription via the Claude CLI, or no key at all with local models through Ollama. The desktop app stores keys on your machine, encrypted with your operating system's keyring (the web dashboard encrypts them in your cloud space), and they are only ever sent to the provider they belong to.

Question 5

Does it run on macOS?

Accepted Answer

Not currently — OneStone ships for Linux (AppImage, .deb) and Windows (installer and portable).

Question 6

What can the agent actually do?

Accepted Answer

118+ built-in tools: web reading and search, file and shell access, email via AgentMail, calendar, contacts, scheduled routines, persistent memory, browser automation, and analytics — plus any external MCP server you connect.

Your AI. Your machine. Your data.