Independent review. IonBin has no partnership with Calendly and was not paid for this page. Our evaluation is our own, based on public documentation and our research. Product names are trademarks of their owners and are used for identification only. How disclosure works.
Booking pages and scheduling automations, with a free plan. Calendly hosts an official MCP server that signs in with OAuth 2.1, so AI clients can work with scheduling data without API keys in config files.
Calendly fully hosts the server at mcp.calendly.com; self-hosting isn't supported. It uses OAuth 2.1 with PKCE and dynamic client registration. Clients that only accept console-issued credentials or personal access tokens won't work with it today. source ↗
Free includes one event type and one calendar connection. Standard is $10 and Teams $16 per seat a month billed yearly. Seats are only needed for hosts, not invitees. Checked 2026-10-18. source ↗
How Calendly connects to each AI platform: native connector or MCP, API through code the agent writes, browser control, or file upload.
| Platform | MCP / connector | API (agent-written code) | Browser | Upload / export |
|---|---|---|---|---|
| Claude (incl. Claude Code) | Not documented Calendly has an official MCP server and Claude (incl. Claude Code) supports MCP, but Calendly's docs don't name this pairing. Auth setup may differ. Calendly MCP docs ↗Claude (incl. Claude Code) MCP docs ↗ | Not documented Claude (incl. Claude Code): Claude Code edits files and runs commands Calendly publishes an API, but this pairing still needs network, authentication and execution-scope checks. Calendly API ↗Claude (incl. Claude Code) docs ↗ | Inferred Claude Code with the Claude in Chrome extension (Chrome, Edge and other Chromium browsers). Calendly is a web app; the pairing itself is not documented. Claude (incl. Claude Code) browser docs ↗ | Not documented Verify which side exports and which imports, supported formats and permissions. Calendly's recorded upload/import status is no; Claude (incl. Claude Code)'s file status is yes. These flags do not establish a file-transfer route. Claude (incl. Claude Code) file docs ↗ |
| OpenAI Codex | Not documented Calendly has an official MCP server and OpenAI Codex supports MCP, but Calendly's docs don't name this pairing. Auth setup may differ. Calendly MCP docs ↗OpenAI Codex MCP docs ↗ | Not documented OpenAI Codex: Edits files and runs commands locally; cloud tasks run in isolated workspaces Calendly publishes an API, but this pairing still needs network, authentication and execution-scope checks. Calendly API ↗OpenAI Codex docs ↗ | Inferred Only in the ChatGPT desktop app; not in the Codex CLI or IDE extension. Calendly is a web app; the pairing itself is not documented. OpenAI Codex browser docs ↗ | Not documented Verify which side exports and which imports, supported formats and permissions. Calendly's recorded upload/import status is no; OpenAI Codex's file status is yes. These flags do not establish a file-transfer route. OpenAI Codex file docs ↗ |
| Google Antigravity | Not documented Calendly has an official MCP server and Google Antigravity supports MCP, but Calendly's docs don't name this pairing. Auth setup may differ. Calendly MCP docs ↗Google Antigravity MCP docs ↗ | Not documented Google Antigravity: Agents edit code and run tasks Calendly publishes an API, but this pairing still needs network, authentication and execution-scope checks. Calendly API ↗Google Antigravity docs ↗ | Inferred The /browser guide documents App and CLI support through Chrome DevTools MCP; the overview comparison conflicts on CLI availability. IDE browser features are separate. Calendly is a web app; the pairing itself is not documented. Google Antigravity browser docs ↗ | Not documented Verify which side exports and which imports, supported formats and permissions. Calendly's recorded upload/import status is no; Google Antigravity's file status is yes. These flags do not establish a file-transfer route. Google Antigravity file docs ↗ |
Confirmed is reserved for evidence of the specific connection route. The current named integrations include plugins, skills and CLIs, so a named platform alone does not confirm MCP or a native connector. Inferred means each side documents a relevant capability, but no document describes the pairing. Code execution still needs network and credential access; file handling still needs a compatible format and transfer direction. Not documented means the records do not establish the route. IonBin has not tested these pairings. Recorded Oct 18, 2026.
| Level | Status | Detail / source |
|---|---|---|
| Native connector / MCP | Yes | Official docs ↗ |
| API / CLI | Yes | Official docs ↗ — REST API and webhooks |
| Browser / manual | No | Browser access is recorded alongside a documented programmatic route. |
| File upload / import | No | No bulk import documented in the pages reviewed (2026-10-18) |
Recorded Oct 18, 2026. Setup and plan limits vary; check the vendor's docs. How levels are assigned.
An official MCP server is documented for this tool. These platforms separately document MCP client support: ChatGPT, Claude, Cursor, Gemini (Google), Google Antigravity, Grok, Grok Bot, Lindy, LM Studio, Mistral Vibe, OpenAI Codex. This inventory does not establish compatible transport, authentication or actions for a pairing. Check the connection matrix and linked sources.
Automation hubs to assess for a custom API connection: Gumloop, Make, n8n, Zapier. Verify credentials, supported requests, limits and error handling; no configured integration is implied.
No long-form review yet. Verdict is based on research, not hands-on testing.
Scheduling with booking pages, routing forms and an API. Its hosted or local MCP server lets authorized AI assistants list, create, reschedule or cancel bookings. Cal.diy is a separate community edition with different capabilities.
Schedules focus time, tasks and habits around meetings. Reclaim 2.0 has an official MCP server for supported AI clients; proposed scheduling changes go to Preview Mode for review before application.
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