"calendar" matching MCP connectors:

Plan, schedule and publish social media posts across Instagram, Facebook, LinkedIn and X. An agent can read your content calendar and brand voice, find free posting slots that respect each project's minimum gap and its audience's prime-time windows, draft a separate post for each platform, and — with explicit opt-in and per-post confirmation — publish. 14 tools, each declaring whether it reads or writes. Docs: https://socialroute.net/mcp

Heldly reads your Google Calendar directly, places tentative holds on every host's calendar, and emails the invitee a one-click picker. The moment the invitee picks, Heldly confirms the chosen slot and deletes the siblings across every host's calendar in the same request. No reusable booking page, no in-app form, no calendar cleanup.

Regulatory Catalysts MCP — high-value biotech regulatory calendar events (keyless).

Google Calendar MCP Pack

Read the .ics your calendar exports: events in a window, free-busy, double bookings, export.

Outlook Calendar MCP Pack

Run your Calaf recruiting book from chat: firms, people, pipeline, calendar, notes, and prep.

Islamic prayer times & calendar MCP (Aladhan API). Keyless.

The Boston Calendar MCP.

Open-source MCP server that gives AI agents access to real email and calendar in one npm install. Solves the problem of AI agents hitting a wall when they need your inbox.

Invite someone to a calendar event by phone number and get their real email back when they accept.

Extracts calendar events from natural-language text, with .ics and calendar links.

Read, send, file and search email in any Gmail, Microsoft 365 or IMAP mailbox, plus its calendar.

Ask your AI about your horse yard: horses, treatments, visits, calendar, exercise and weights.

Latin American business compliance suite — 28 tools for tax ID validation (CPF, CNPJ, RFC, RUT, CUIT, NIT), banking (PIX, CLABE, CBU), VAT rules, e-invoicing (NF-e, CFDI, DTE), holidays, and labor calendar across Brazil, Mexico, Chile, Argentina, and Colombia.

Agent-Native Google Calendar - manage events, sync, and public booking

WhatsApp® reminders and rescheduling for Calendly. Public read-only MCP endpoint.

10-sport calendar MCP — football, F1, tennis, cricket, rugby, golf, polo, sailing, horse racing.

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

Manage Microsoft 365 email, calendar, contacts and inbox rules via the Graph API with OAuth 2.0.