"DuckDuckGo Search Engine" matching MCP servers:

Deterministic temporal reasoning engine for AI agents. LLMs are surprisingly bad at dates, timezones, business days, holidays, and recurring schedules. Taghvim gives agents deterministic temporal primitives they can call instead of guessing.

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

Enables LLMs to create, retrieve, update, soft-delete, complete, list, and search schedules via MCP tools.

Real public/bank/school holiday lookup for 206 countries via a rule-based calendar engine (moveable holidays like Easter computed astronomically, not guessed). Priced per call via x402/USDC on Base.

Scheduling and booking engine for AI agents. Check availability, hold slots, and confirm appointments with two-phase booking and conflict-free resource management.

Provides MCP tools to list valid appointment slots, schedule, reschedule, and cancel appointments under a clinic's business policy (hours, buffers, minimum notice, practitioner availability).

Enables AI assistants to find meeting times that overlap working hours across IANA time zones, DST-aware, and to search available time zones.

Connects multiple Gmail and Google Calendar accounts to Claude Desktop locally, enabling email management (search, send, draft, label) and calendar operations (list events, search) via natural language.

A self-hosted MCP server that provides secure access to iCloud Mail, Calendar, and Contacts, enabling agents to read and send email, manage calendar events, and search contacts with safety controls like approval for outgoing messages.

MCP server for a self-hostable personal planner — exposes memo, todo, calendar event, and cross-resource full-text search tools so Claude, Cursor, or any MCP client can manage your schedule and notes in natural language.

MCP server that wraps the AddEvent Calendar & Events API v2, allowing Claude to create, search, retrieve, update, and delete events, calendars, and RSVP attendees, plus list timezones.

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 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 Windows users to search and retrieve Outlook calendar appointments, tasks, and mail, as well as local/OneDrive files via Windows Search and OneNote pages, with additional OneNote page creation and update capabilities, all through MCP over stdio.

An MCP server providing comprehensive email capabilities via IMAP and SMTP, enabling AI assistants to read, search, send, manage, schedule, and analyze emails across multiple accounts.

Discovers events from Luma's public feed and subscribed calendars, with distance filtering, category search, and ICS export. No API key required for basic discovery.

Enables querying and managing Fantastical calendars and events via the MCP protocol, allowing AI assistants to list calendars, create events using natural language, and search or retrieve event details.

Enables MCP-enabled AI clients to access Microsoft 365 operated by 21Vianet (China) through Microsoft Graph, supporting email, calendar, OneDrive, SharePoint, Teams, contacts, search, and intelligent aggregation with delegated permissions and OAuth 2.1.

Your real mailbox and calendar for your AI agent — Microsoft 365 via Graph or any IMAP — as 24 tools: read, search, attachments as text, sender history, drafting from identity and knowledge files, free-slot computation. Send, reply, delete and calendar writes need out-of-band human approval: the agent cannot approve its own actions.

Enables AI agents to search restaurants, check availability, and book reservations on OpenTable, including managing booking history and handling multi-factor authentication.