"Temporal" matching MCP servers:

Calendar MCP server with atomic booking, conflict prevention, deterministic RRULE expansion, and TOON token compression for AI agents.

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.

A local-first open-source MCP server that acts as a personal secretary, memory manager, and automation hub—it syncs Calendar, Gmail, Canvas, GitHub, and Health into a typed temporal memory graph, and enables approval-gated write actions like creating events, drafting/sending mail, and filing issues, all with telegram/slack/CLI interfaces and a SQLite-backed audit trail.

Provides deterministic, byte-stable temporal reference data over MCP, resolving civil dates and names into calendars, seasons, moon phases, planetary retrogrades, and traditional symbolic systems. Exposes tools that return a single date's identity, compare two dates across shared symbolic systems, and map a name to cosmic cards and Latin cipher sums, with coverage focused on 1900–2100.