"Understanding Reverse Processes or Reverse Engineering" matching MCP servers:

when2meet-style scheduling polls — self-hostable, reverse-proxy-auth friendly, agent-first API (OpenAPI + llms.txt + MCP).

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.

Enables MCP clients to search availability, read services, resources, bookings and customers, and, when writes are enabled, reserve slots, create or cancel bookings, and add or update customers.

Enables users to calculate BaZi/Four Pillars charts, reverse-lookup birth dates from a BaZi string, retrieve almanac details and auspicious activities, and compute Yuan Tiangang bone weight fortunes. It provides these traditional metaphysics calculations as MCP-accessible tools with bilingual descriptions.

Exposes a single typed tool that lets coding agents explore London and San Francisco Agent Engineering events, speakers, agendas, tickets and recordings, search a 456-listing tool/model directory, and export UTC calendar plans — all from a bundled catalogue with zero server-side model calls by default.

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.

MCP server for managing Zoom meetings, enabling creation, update, deletion, and retrieval via Claude or Cursor.

Enables Alexa+ users to manage home-care services, compare options, schedule or change visits, and keep records of completed work.

A read-only MCP connector for inspecting HelloZen configuration, exposing four tools to list custom fields, pipelines, calendars, and workflows without write access or contact data exposure.

Enables local management of Jeero subscriptions and event data, synchronizing with Mother and caching events in SQLite without requiring WordPress or a hosted MCP service.

Connects AI assistants to CalDAV servers so they can list calendars, browse events within a timeframe, and create, update, delete, or complete events and tasks (VTODOs) through natural language. Supports recurring events, all-day entries, and todo filtering by status or due date with pagination.

Enables AI agents to check Australian business days, add or subtract business days, count business days between dates, and calculate calendar or business-day deadlines across all states and territories using structured MCP tools.

Enables AI assistants to read, search, send, draft, and organize email, manage contacts, and create or update calendar events through Fastmail's JMAP, CalDAV, and WebDAV APIs. Supports attachments, conversation threading, label versus move semantics, bulk operations, and account or mailbox statistics.

Self-hosted MCP server for Elvanto church management. Enables querying upcoming rosters, service songs, and submitting unavailability via Claude or ChatGPT.

Turns a published ICS calendar feed into ready-to-use JSON tools for AI assistants. Enables querying events by day or date range and inspecting feed diagnostics without exposing secret URLs or returning truncated calendar data.

Enables read-only discovery and planning of San Francisco Tech Week events, including searching by hosts, topics, dates, and building itineraries or calendar drafts.

A Korean-language loss-prevention MCP server that extracts deadlines from user-provided text, ranks them by risk, and generates actionable steps to avoid financial or opportunity loss.

Enables retrieval of the Hindu almanac for a given date and place, including tithi, nakshatra, yoga, karana, vaara, sunrise/sunset, and auspicious or inauspicious muhurta periods.

Lightweight MCP server for Gmail and Google Calendar, enabling email and calendar management via natural language with per-account processes.

Personal-assistant MCP server for managing personal data including calendar events, emails (read/label only), and contacts via local files or Gmail IMAP.