Casey MCP

A personal tool for connecting Casey Bruns's own Google account to AI assistant software running on his own computer.

What this application does

Casey MCP is a single-user, personal-use application. It is not a product, it is not offered to the public, and it has no users other than its author. It exists so that Model Context Protocol (MCP) server software running locally on the author's own computer can read and edit the author's own Google Drive files, documents, spreadsheets, presentations, calendar and mail at his explicit direction.

In practice, this means the author can ask an AI coding assistant on his laptop to do things like "find the planning document from last week", "add these rows to that spreadsheet", or "what is on my calendar tomorrow", and have the assistant carry out the request against his own Google account.

Why it requests the permissions it does

• Google Drive — to list, search, open, create and modify the author's own files and folders.
• Google Docs, Sheets and Slides — to read and edit the contents of the author's own documents, spreadsheets and presentations.
• Google Calendar — to read the author's own calendars and create or amend his own events.
• Gmail — to search and read the author's own mail, apply labels, manage filters, and send mail on his behalf.

Each permission is requested so that the corresponding local MCP server can perform those operations on the signed-in account. No permission is used for any purpose beyond carrying out the author's own instructions on his own data.

How it is built

The application is a configuration of two open-source MCP servers, @piotr-agier/google-drive-mcp and @gongrzhe/server-gmail-autoauth-mcp, which run as local processes on the author's machine. There is no hosted backend, no server operated by this application, and no third party with access to the credentials.

Privacy

How this application handles data is described in full in the Privacy Policy.