Which scheduling tool has an MCP server?
WhenMeet.me runs a remote MCP server at /mcp. Add it to your MCP client with a personal access token from Settings → API tokens & MCP.
Best scheduling tools for AI agents (2026)
WhenMeet.me is the scheduling tool in this list with a built-in remote MCP server, so assistants like Claude can find common free times and book through booking links on a free account. Calendly, SavvyCal and Rallly expose APIs or webhooks on various plans, while Reclaim.ai and Motion schedule with their own built-in AI.
- WhenMeet.me — developers connecting Claude or another MCP client to real calendars
- Calendly — agents that need to read Calendly data and react to bookings
- SavvyCal — scripts that need API and webhooks on an inexpensive plan
- Rallly — automating group polls via API
- Reclaim.ai — letting AI defend focus time and auto-schedule meetings
- Cal.com — teams that prefer open-source, self-hostable scheduling
- Motion — AI auto-scheduling of tasks around meetings
How we ranked
We ranked tools on how an external AI agent can act on them: a remote MCP server, a documented API, webhooks, and the plan each needs. AI features inside a product (auto-scheduling) count, but less than access for your own agent. Capabilities not confirmed on vendor pages are not claimed. Disclosure: this list is published by WhenMeet.me, which appears in it. We rank on the stated criteria using each vendor’s own pricing and documentation pages (linked under every entry, checked 2026-10-12) and list real drawbacks for every product, including our own.
- Remote MCP server for AI assistants
- Documented HTTP API (finding slots, booking)
- Webhooks for booking events
- Plan required for agent access
- Built-in AI scheduling
Last checked against each vendor’s official pages (linked under every entry). Prices and plans change; check the vendor before you buy. WhenMeet.me is our own product and is ranked with the same criteria.
The ranking
1. WhenMeet.me
Best for: developers connecting Claude or another MCP client to real calendars
- Free plan
- Free, no paid tier: booking links, team links (round-robin or everyone-free), reminder emails, CRM hooks, group heat-map
- Paid from
- No paid plan
Pros
- Personal booking link is ready the first time you open Booking links after connecting a Google or Microsoft calendar
- Team links (round-robin “anyone” or “everyone must be free”) at no cost
- HubSpot, Salesforce, Pipedrive, Slack and signed webhooks without a paid seat
- MCP tools: find_common_slots, create_meeting, suggest_time, get_booking_slots, book_slot and more
- OpenAPI 3.1 at /openapi.json plus signed outbound webhooks
Cons
- No payments, routing forms, SMS reminders or native Zoom links
- Google and Microsoft use live Free/Busy; public iCloud feeds are read-only; manual marking remains available
- Younger product with a much smaller integration catalogue than the market leaders
Verdict: Remote MCP server and OpenAPI-documented HTTP API, both free with a personal access token; fewer tools than general-purpose calendar APIs and Google/Microsoft calendars only.
Sources: whenmeet.me, whenmeet.me · checked
2. Calendly
Best for: agents that need to read Calendly data and react to bookings
- Free plan
- Free: 1 event type, 1 calendar connection
- Paid from
- $10/seat/mo billed annually ($12 monthly), Standard
Pros
- Market leader with a broad integration catalogue
- Routing forms, workflows and Salesforce/HubSpot routing on Teams
- Mobile app and browser extension
- Personal access tokens for the API on every plan
Cons
- Free plan is limited to 1 event type and 1 calendar, without reminders or webhooks
- Round-robin starts on Teams ($16/seat/mo annual, $20 monthly)
- No native Pipedrive integration (third-party apps only)
Verdict: API GET/POST works on any plan; webhooks and the Scheduling API need a paid plan. No MCP server confirmed on vendor pages.
Sources: calendly.com · checked
3. SavvyCal
Best for: scripts that need API and webhooks on an inexpensive plan
- Free plan
- No free plan (free trial, 30-day money-back)
- Paid from
- $10/user/mo billed annually, Basic
Pros
- Recipients can overlay their own calendar on your availability
- Round-robin, collective links, polls, HubSpot, API and webhooks on the cheapest tier
Cons
- No free plan
- Branding removal and custom domains only on Premium ($17/user/mo annual)
Verdict: API and webhooks on Basic; no free plan.
Sources: savvycal.com, docs.savvycal.com · checked
4. Rallly
Best for: automating group polls via API
- Free plan
- Free: up to 3 open polls, 30-day retention, unlimited participants
- Paid from
- $6/mo billed annually, Pro
Pros
- Open source and self-hostable (Docker)
- No login needed to vote
- API and webhooks on Pro
Cons
- Polls only — no booking links
- Free plan caps at 3 open polls with 30-day retention
Verdict: API and webhooks on Pro; polls only, no booking.
Sources: rallly.co · checked
5. Reclaim.ai
Best for: letting AI defend focus time and auto-schedule meetings
- Free plan
- Free (Lite): 1 user, 1 scheduling link
- Paid from
- $10/seat/mo billed annually, Starter
Pros
- AI calendar defence: focus time, habits, smart meetings
- Webhooks for scheduling links on Business
Cons
- Scheduling links are secondary; one link free
- No native CRM — HubSpot only via webhooks + Zapier/Pipedream
Verdict: Built-in AI scheduling; webhooks for links on Business.
Sources: reclaim.ai, help.reclaim.ai · checked
6. Cal.com
Best for: teams that prefer open-source, self-hostable scheduling
- Free plan
- Free for 1 user: unlimited event types, 100+ apps, HubSpot/Salesforce two-way sync
- Paid from
- $12/user/mo billed annually, Teams
Pros
- Most generous individual free plan, including Stripe/PayPal and CRM sync
- Open source and self-hostable
- One-click Calendly import
Cons
- Round-robin, collective events and branding removal need the paid Teams plan
- Monthly price is not shown on the pricing page
- Breadth of options means more setup than a single default link
Verdict: Self-hosting gives full control; check Cal.com’s docs for its API and agent options.
7. Motion
Best for: AI auto-scheduling of tasks around meetings
- Free plan
- No free plan (7-day trial)
- Paid from
- $19/seat/mo billed annually, Pro AI
Pros
- AI auto-schedules tasks and projects around meetings
- Booking links bundled with the suite
Cons
- No free plan
- Scheduling is a side feature of a project-management suite
Verdict: Strong built-in AI; it schedules for you rather than exposing an agent interface.
Sources: usemotion.com · checked
Comparison table
| Feature | WhenMeet.me | Calendly | SavvyCal | Rallly | Reclaim.ai | Cal.com | Motion |
|---|---|---|---|---|---|---|---|
| Remote MCP server | Yes, free | Not confirmed | Not confirmed | Not confirmed | Not confirmed | Not confirmed | Not confirmed |
| API | Yes, free | Any plan (GET/POST) | Basic | Pro | See vendor | See vendor | See vendor |
| Webhooks | Yes, free | Paid plans | Basic | Pro | Business | See vendor | See vendor |
| Built-in AI scheduling | Slot ranking | No | No | No | Yes | No | Yes |
Frequently asked questions
Can an AI agent book through someone’s booking link?
With WhenMeet.me, yes: the get_booking_slots and book_slot tools read a booking link’s open times and book one.
Does Calendly’s API work on the free plan?
GET and POST API requests work on any Calendly plan; webhooks and the Scheduling API endpoints need a paid plan.
What is the difference between an AI scheduler and an agent-ready scheduler?
Reclaim.ai and Motion use their own AI to place meetings. An agent-ready tool like WhenMeet.me exposes MCP and API access so your own assistant can do the scheduling.