"Ways to Improve Thinking Skills" matching MCP servers:

Provides Japanese business day calculations: add or subtract business days, count between dates, check whether a date is a business day, and reverse-calculate deadlines. Handles national holidays and year-end periods fully offline with no API keys required.

A server for business day arithmetic and SLA calculations, supporting holidays for ~150 countries, plus cron and recurrence-rule parsing.

Provides read-only access to Hostaway PMS data, enabling assistants to answer questions about listings, calendars, reservations, and inbox threads, and generate occupancy, inbox, and completeness reports without writing or sending anything.

Forked from https://github.com/epaproditus/google-workspace-mcp-server The deletion and updates on Google Calendar were removed since there were no scope to prevent deletion whilst maintaining creation capabilities.

Wraps the Calendly API v2 for scheduling data, enabling AI agents to query and manage Calendly events and availability.

An MCP server for managing kids' sports activities on Spond. Built for parents who want to give AI assistants access to upcoming matches, training schedules, and attendance.

Enables AI assistants to manage GoHighLevel CRM data including contacts, conversations, opportunities, calendars, and forms through MCP tools and resources.

A stateless MCP server that forwards calendar operations to a CalDAV server, enabling AI assistants to list, search, create, update, delete events, and query free/busy information via encrypted tokens.

Enables Claude to query and manage Mail2000 calendar events, including agenda, search, booking, updating, and deleting events through natural language.

MCP server that gives Claude and other MCP hosts full access to Calendar.app on macOS — list, search, create, update, and delete events across all configured accounts.

Enables users to interact with a business co-founder/executive assistant that integrates with Google services (Gmail, Calendar, Contacts), web search, and includes approval gating for sensitive operations.

A Model Context Protocol tool that enables Claude to interact with Microsoft Outlook for macOS, allowing users to read/send emails, manage calendar events, and access contacts through natural language commands.

Enables AI voice agents like RetellAI and Vapi to directly integrate with GoHighLevel for contact management, calendar availability, and appointment booking without middleware.

A Model Context Protocol server that enables AI assistants to interact with Gmail services, supporting email operations, draft management, and calendar functionality through Google API integration.

MCP server to interact with Google Gmail and Calendar APIs. Supports multiple accounts, email search and drafting, and calendar event management.

Lightweight MCP server that enables AI agents to manage Microsoft Outlook email, calendar, and files using PKCE authentication with only a Client ID.

An MCP server that enables AI assistants to interact with Google Calendar and Gmail, allowing users to manage events, send emails, and organize their inbox through natural language.

Enables accurate calculation of Korean public holidays, substitute holidays, and business days, with tools to check dates, list holidays, and compute working-day intervals. It works as a public MCP connector requiring no authentication or API keys.

A read-only MCP server for auditing Trafft booking data with tools to list services, employees, appointments, and customers without mutation endpoints.

Enables querying public holiday data by country and year, checking if today is a holiday, and listing upcoming holidays through the MCP protocol.