"An open-source penetration testing framework" matching MCP connectors:

Open-source MCP server that gives AI agents access to real email and calendar in one npm install. Solves the problem of AI agents hitting a wall when they need your inbox.

The Cronofy MCP Server allows AI tools to schedule meetings with the Cronofy Scheduler. It is an endpoint that supports the Model Context Protocol for adding Cronofy to your agentic workflows. It is a server that provides tool rather than search capabilities. You can add the Cronofy MCP Server to your environment and list the tools without authorization. However, authorization is required to call any of the tools provided.

SimplyBook.me is an online booking and scheduling platform for service-based businesses. Its MCP connector lets AI assistants create and manage bookings, look up client and appointment data, and check availability directly from a chat interface. Connect your AI assistant to your SimplyBook.me - Free Appointment Booking System booking account.

An AI-first personal CRM you run in natural language: contacts, reminders, notes, and more.

First-party MCP server for Fastmail, including email, contacts, and calendars. See: https://www.fastmail.com/blog/an-mcp-server-for-fastmail/