"Free servers available for testing purposes" matching MCP servers:

Enables assistants and agents to query calendar availability from Google, Outlook, iCloud, or ICS feeds and return free time slots for specified days, date ranges, or pasted messages. It exposes read-only tools for finding availability and checking calendar readability without exposing calendar addresses.

Enables AI assistants to book meetings, check availability, and manage Cal.com scheduling through natural conversation.

Enables a family and ranch to manage shared calendars, chores, lists, supplies, animal locations, approvals, and connected devices through MCP tools and interactive Echo Show screens, with account-linked permissions and automations.

Enables scheduling and todo management via MCP, allowing users to add reminders, view tasks, and mark completion through natural language.

Enables AI assistants to search, read, compose, and manage Thunderbird mail, filters, contacts, and calendar events through the Model Context Protocol.

Enables AI apps to read a student's Moodle courses, upcoming and overdue due dates, assignment submission statuses, course grades, gradebook items and announcements. It is strictly read only, so it can never submit, edit or delete anything.

Enables Claude Desktop users at the University of Ghana to read their own Sakai courses through safe, read-only tools — checking deadlines, announcements, calendars, assignments, feedback and grades, and extracting text and page images from lecture slides for study, planning and revision.

Enables AI apps to read a student's courses, due dates, grades, missing work, announcements, modules, discussions, syllabus, and calendar events in a read-only way. It cannot submit, edit, or delete anything, and credentials go only to the user's own school.

Lets Cursor's AI agent read a public Google Calendar through the Model Context Protocol, so users can ask natural-language questions about events and schedules.

Provides persistent memory, calendar integration, task management, and proactive assistance for Alexa+ through the Model Context Protocol.

Empowers AI assistants with real-world capabilities including note management, Gmail integration, Google Calendar and Tasks management, and Git repository operations through the Model Context Protocol.

Enables voice-driven appointment booking for small businesses, letting customers check availability, book, reschedule, and cancel appointments through any MCP client.

A hosted MCP server that allows AI assistants to access Google Calendar and Sheets via OAuth proxy, requiring no Google Cloud setup.

MCP server giving Claude access to Tuta mail, calendar, contacts and drive. Supports mail modes (dedicated/shared/folder), trusted sender filtering with E2E verification, and Docker-based setup.

A macOS-only MCP server that lets Claude read and create events in Apple Calendar, list calendars, and find free time using EventKit.

Provides real, official public holiday data for ~100 countries with tools to list holidays for a year and check if a specific date is a holiday. Free, no API key required, powered by Nager.Date.

An MCP server for Apple iCloud Calendar over CalDAV, supporting list, search, create, update, delete, RSVP, and free-time finding without local macOS dependencies.

MCP server for Apple Calendar and CalDAV providers. Enables listing, creating, updating, deleting events, and checking free/busy status with per-calendar write protection.

Enables full CRUD operations on calendar events, free/busy queries, and availability slot finding via CalDAV, supporting Nextcloud, Radicale, iCloud, and other RFC 4791-compliant servers.

Enables language models to directly manage Kronos 2.0 bookings and schedules, including checking available slots, listing resources and services, creating or moving appointments, linking amoCRM deals to bookings, and subscribing to webhooks via the Public API v1.

Enables an agent to read and manage calendars across Nextcloud, iCloud, Google and any CalDAV server, merging every account into one sorted view. Exposes tools for listing and searching events, finding free time, and creating, updating or deleting events, with secrets kept out of the config.

Free, keyless MCP server for timezone conversion, world clock, DST-aware date arithmetic, and cross-timezone meeting scheduling using IANA timezones.

Enables users to find available appointment slots from a public resource schedule over an inclusive date range, applying booking-window rules when requested. It returns wall-clock times and flags truncated result sets, operating read-only without account or API key.

Muslim Prayer Reminder MCP is a free, open-source server for calculated Muslim prayer times in AI assistants. It supports location and regional calculation methods, daily timetables, next-prayer countdowns, and local or remote MCP clients.

Agent-native MCP server for Carly, the AI scheduling assistant. Exposes 11 tools to read and manage booking pages, event types, calendars, bookings, and available slots. Allows you to manage and create booking pages from the command line.

Enables MCP clients to interact with CalDAV calendars, letting users view schedules, find free time, create and update events, manage tasks and dated notes, and respond to invitations on their own server.

Enables MCP-aware AI clients to call AgentDraft's per-agent inbox, conflict-free calendar booking, and tamper-evident audit trail as tools.

Enables reading available appointment slots from public OnlineAfspraken widget URLs without an account. It provides availability information only, not booking.

Enables AI assistants to answer a small business's customer questions from its own FAQs and order data, list upcoming open appointment times in the business's time zone, and book one of those offered slots with staff notification. Free for the first 1,000 businesses, using fast rule-based FAQ matching rather than free-form generation.

Enables privacy-safe calendar availability queries across Outlook, iCloud, and Google ICS feeds, exposing only busy/free intervals and free-slot search without revealing event details.