# Claude Duet and your knowledge base [Claude Duet](https://www.knowman.io/guides/claude-duet-memory) can use memory, skills, and connectors already set up in a Claude account. Anthropic’s documents do not confirm that Duet supports custom [remote MCP](https://www.knowman.io/guides/mcp-server-knowledge-base) connectors. KnowMan’s [MCP server](https://www.knowman.io/guides/what-is-an-mcp-server) runs locally with `npx -y @knowman/mcp` and is also available as a hosted server at https://api.knowman.io/mcp with OAuth sign-in or an API key. ## What Claude Duet can use Duet runs on a Claude account, so memory, skills, and connectors set up in Claude are available from the first message. It can use [connected apps](https://www.knowman.io/guides/teach-claude-duet-your-knowledge) such as Gmail, Google Calendar, Google Drive, and Slack. For websites without a connector, it can use its own cloud browser. See [Anthropic’s Duet guide](https://support.claude.com/en/articles/17631495-get-started-with-claude-duet). ## How Duet handles memory and chats Duet uses and adds to [Claude memory](https://www.knowman.io/guides/claude-duet-memory). Separate topic channels share the same memory. It can also search Duet chats and Claude chats outside projects for earlier context, subject to the Search and reference chats setting. Deleting a chat removes it from that search. See [Anthropic’s memory and chat search guide](https://support.claude.com/en/articles/11817273-use-claude-s-chat-search-and-memory-to-build-on-previous-context) and [Duet guide](https://support.claude.com/en/articles/17631495-get-started-with-claude-duet). ## What Duet can and cannot see Duet cannot see every Claude project or all files on a computer. It can read work in Claude but cannot change it. Connected apps are controlled by the user, who starts each connection and can disconnect it later. See [Anthropic’s Duet guide](https://support.claude.com/en/articles/17631495-get-started-with-claude-duet). ## Custom remote MCP connectors Anthropic documents custom connectors using remote MCP for Claude, Cowork, and Claude Desktop. They are available across Free, Pro, Max, Ultra, Team, and Enterprise plans, while Free users can have one custom connector. A connector can use an existing remote MCP server or a server built by the user. See [Anthropic’s remote MCP guide](https://support.claude.com/en/articles/11175166-get-started-with-custom-connectors-using-remote-mcp). ## Remote and local MCP are different Remote MCP servers communicate with Claude over the internet and must be reachable from Anthropic’s cloud infrastructure. Local MCP servers configured in Claude Desktop use the local network, but that separate mechanism is unavailable in Cowork and claude.ai. See [Anthropic’s remote MCP guide](https://support.claude.com/en/articles/11175166-get-started-with-custom-connectors-using-remote-mcp). ## Which plans include Duet Duet is a research preview available by waitlist to US users on Pro, Max, and Ultra plans. It is not yet available on Team or Enterprise plans. Remote MCP custom connectors have a broader plan range, but that does not establish that Duet supports them. See [Anthropic’s Duet guide](https://support.claude.com/en/articles/17631495-get-started-with-claude-duet) and [remote MCP guide](https://support.claude.com/en/articles/11175166-get-started-with-custom-connectors-using-remote-mcp). ## Where KnowMan fits KnowMan keeps [saved articles](https://www.knowman.io/guides/personal-knowledge-base), readable content, citations, and memories such as claims, decisions, and playbooks. Its MCP server runs locally with `npx -y @knowman/mcp` and is also available as a hosted server at https://api.knowman.io/mcp with OAuth sign-in or an API key. For local setups, see the [KnowMan MCP guide](https://www.knowman.io/guides/mcp-server-knowledge-base) and [Claude knowledge base guide](https://www.knowman.io/guides/claude-knowledge-base). ## Add the hosted KnowMan server to Claude KnowMan’s hosted remote MCP server is available at https://api.knowman.io/mcp. The documented setup for clients with MCP OAuth is to add that server URL, then sign in on the KnowMan consent page and approve. The consent page requests knowman.read, which covers search, read, and ask, and knowman.write, which covers saving links. Access tokens last one hour and refresh automatically. You can use an API key instead of OAuth: create one in KnowMan settings and send it as an `Authorization: Bearer ` header. To disconnect an app, delete its "OAuth: " entry in your KnowMan API-keys list; changing your KnowMan password disconnects every app. KnowMan also runs locally with `npx -y @knowman/mcp`; the open-source client is [knowman-mcp](https://github.com/Essatt/knowman-mcp). Since Duet uses connectors already set up in your Claude account, adding the hosted server there is the documented path for Claude setups. Then ask the assistant to search or save, for example "search my KnowMan for ..." or "save this URL". ## Questions ### Can Claude Duet use my own knowledge base? Duet can use memory, skills, and connectors already set up in Claude, including connected apps. Support for custom remote MCP connectors in Duet is not documented, so a [separate knowledge base](https://www.knowman.io/guides/ai-knowledge-base) cannot be confirmed as connectable this way. See [Anthropic’s Duet guide](https://support.claude.com/en/articles/17631495-get-started-with-claude-duet). ### Can KnowMan connect to Claude Duet? Yes, as a hosted remote MCP server. KnowMan runs locally with `npx -y @knowman/mcp` and as a hosted server at https://api.knowman.io/mcp with OAuth sign-in or an API key. Remote custom connectors require a server reachable from Anthropic’s cloud infrastructure; to add the hosted server, enter the URL, sign in, and approve. See [Anthropic’s remote MCP guide](https://support.claude.com/en/articles/11175166-get-started-with-custom-connectors-using-remote-mcp). ### Does Duet share memory between channels? Yes. Anthropic says separate Duet channels [share the same memory](https://www.knowman.io/guides/ai-agent-memory), and Duet also uses and adds to Claude memory. See [Anthropic’s Duet guide](https://support.claude.com/en/articles/17631495-get-started-with-claude-duet) and [memory guide](https://support.claude.com/en/articles/11817273-use-claude-s-chat-search-and-memory-to-build-on-previous-context). ### Does remote MCP work on every Claude plan? Anthropic lists custom remote MCP connectors for Free, Pro, Max, Ultra, Team, and Enterprise plans on Claude, Cowork, and Claude Desktop. Free users can have one custom connector. See [Anthropic’s remote MCP guide](https://support.claude.com/en/articles/11175166-get-started-with-custom-connectors-using-remote-mcp). ## Related guides - [How to Build a Claude Knowledge Base](https://www.knowman.io/guides/claude-knowledge-base) - [Give Claude Code a knowledge base built from your reading](https://www.knowman.io/guides/claude-code-knowledge-base) - [Connect your knowledge base through KnowMan's MCP server](https://www.knowman.io/guides/mcp-server-knowledge-base) - [How Do You Connect AI to Your Notes?](https://www.knowman.io/guides/connect-any-ai-to-your-notes) - [What Is a Knowledge Base for AI Agents?](https://www.knowman.io/guides/knowledge-base-for-ai-agents) ## More in this topic - [What is an MCP server?](https://www.knowman.io/guides/what-is-an-mcp-server) ## More for Claude Duet - [How to give Claude Duet better memory](https://www.knowman.io/guides/claude-duet-memory) - [How to teach Claude Duet your knowledge](https://www.knowman.io/guides/teach-claude-duet-your-knowledge) ## Build a searchable knowledge base Try KnowMan Pro for 14 days with no credit card. [Create your account](https://app.knowman.io/signup) [Start free](https://app.knowman.io/signup) Every new account starts with 14 days of Pro. No credit card. Source: https://www.knowman.io/guides/claude-duet-knowledge-base