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MCP Comparison · 2026

Cal.com vs Calendly MCP Server

Comparing Cal.com and Calendly as MCP servers? Cal.com (book meetings) is best when external booking links. Calendly (share booking links) is best when external booking workflows. Both run as Model Context Protocol servers and can coexist in the same client. Updated 2026.

Cal.com

Cal.com

Open-source scheduling — booking pages, availability, and event types for AI agents.

Calendly

Calendly

Booking-link scheduling — share availability without exposing the raw calendar.

Side-by-side specs

Pulled from each MCP's verified fact sheet.

 Cal.comCalendly
Primary functionBook MeetingsShare Booking Links
MaintainerCal.comCommunity
PricingFreemiumFreemium
Setup complexityLow · ~5 minLow · ~5 min
Transportstdiostdio
Auth modelAPI keyOAuth 2.1
LicenseAGPL-3.0MIT
LanguageTypeScriptTypeScript
Latest versionlatestlatest
Compatible clientsClaude, Cursor, Any MCP-compatible clientClaude, Cursor, Any MCP-compatible client
Last verified2026-05-262026-05-26

Which one should you pick?

Decision rubric drawn from each MCP's documented strengths.

Choose Cal.com

  • External booking links
  • Self-hosted scheduling
  • Multi-step booking flows
See full Cal.com write-up →

Choose Calendly

  • External booking workflows
  • Recruiter and sales flows
  • Read-only upcoming-meetings views
See full Calendly write-up →

Pick something else if…

  • Internal-only calendar access
  • Internal team scheduling

Feature breakdown

Key capabilities each server ships out of the box.

Cal.com

  • Public booking pages
  • Event types and availability
  • Team round-robin
  • Self-host or managed
  • Webhook integrations

Calendly

  • Event-type management
  • Availability queries
  • Scheduled-event listing
  • Webhook subscription
  • OAuth 2 auth

Install snippets

Open the detail page for ready-to-paste config for every major client.

Install Cal.com

Setup snippets for Claude, Cursor, VS Code, Windsurf →

npx -y @calcom/mcp

Install Calendly

Setup snippets for Claude, Cursor, VS Code, Windsurf →

npx -y calendly-mcp

FAQ

Cal.com vs Calendly: which MCP server should I use?

Pick Cal.com when external booking links. Pick Calendly when external booking workflows. Cal.com is built for book meetings, while Calendly focuses on share booking links.

Can I run both Cal.com and Calendly together?

Yes. MCP clients run each server as a separate process and surface every server's tools simultaneously, so you can install both and let your agent decide which to call. Be deliberate with auth scopes when stacking servers.

How fresh is this comparison?

Updated for 2026. Cal.com's last verification: 2026-05-26. Calendly's last verification: 2026-05-26. We refresh detail-page facts on every catalog rebuild.

More Cal.com comparisons

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Browse all Scheduling & Calendar MCPs? See the full ranked list →