Calendrz is an automatic availability-mirroring tool for anyone who manages multiple Google calendars. It watches all your calendars in real time and creates "hold" events to block conflicting time slots — no manual copy-pasting, no shared calendar permissions, no browser extensions. Calendrz also offers an MCP (Model Context Protocol) integration, letting AI assistants like Claude and ChatGPT read your unified availability and help you schedule smarter. Free tier available.
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