"Google Calendar" matching MCP connectors:

Authoritative time intelligence — current time in 597 timezones, sunrise/sunset/twilight times by location (US Naval Observatory), and moon phase calendar. Essential for scientific, agricultural, and scheduling agents.

Unified AI API — 30+ models from OpenAI, Anthropic, Google, Groq, and xAI through one API key. Plus translation, weather, and utility endpoints.

17+ Japan MCP tools (weather/calendar v2/local-pack/enrich). x402 on Base, wallet-free trial.