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Calendly MCP server for AI agents.

actionlake is an MCP gateway: one remote MCP server that connects Claude and other MCP clients to Calendly and the rest of your systems. It gives your agent 65 Calendly actions (43 reads, 13 writes and 9 that wait for a confirmation) and holds the Calendly credential itself, so the agent never does. It paces Calendly's limits and records every call. Connecting Calendly needs your own Calendly OAuth app and one admin sign-in.

100,000 free calls a month. No card, no email, no password: press Start a free sandbox on the next screen and keep the key it shows you.

claude mcp add --transport http actionlake https://connect.actionlake.com/mcp
the first call
do {  action: "calendly.scheduled_events.list",  intent: "check which Calendly account is connected"}# List Events · read · 1 upstream call
  • 65actionsin one signed file
  • 43readlook, never change
  • 13writecreate and update
  • 9wait for a yesdestructive, confirmed first

Set up

Connect Calendly in three steps.

  1. 01

    Add actionlake to Claude.

    Run the command once in Claude Code; its consent page can create a free sandbox: 100,000 calls a month, no card. In the Claude app, add a custom connector with the URL below and paste your key on the consent page. Creating a new sandbox from the Claude app is not yet tested by us.

    https://connect.actionlake.com/mcp
  2. 02

    Connect Calendly.

    OAuth 2.0, authorization code with PKCE. You register your own OAuth app with Calendly, an admin signs in once, and you paste the app's client id and secret and the tokens from that sign-in; actionlake renews the access token from then on. actionlake stores what you paste write-only, sealed under your tenant's key.

    Before the first sign-in, Calendly needs an OAuth app of your own, registered in its developer portal. actionlake has no Calendly app to lend you.

    • access_tokenAccess token from one sign-in with your own OAuth app
    • refresh_tokenRefresh token from the same sign-in; the access token is renewed from it
    • client_idCalendly OAuth client id (developer.calendly.com > My apps > your web OAuth app)
    • client_secretCalendly OAuth client secret (shown once, when the app is created)
    account { op: "connections.requirements", service: "calendly" }
    # free: exactly what to paste, and what is found for you
  3. 03

    Make the first call. Check before a write.

    Ask in plain words; Claude picks the action. Before anything changes, check validates the call and prices it, for free.

    do    { action: "calendly.scheduled_events.list" }# list events · read · 1 upstream callcheck { action: "calendly.contacts.create", input: { … } }# free: inputs, permissions, cost and confirmations, nothing sent

Calendly at a glance

Sign-in
OAuth 2.0, authorization code with PKCE. You register your own OAuth app with Calendly, an admin signs in once, and you paste the app's client id and secret and the tokens from that sign-in; actionlake renews the access token from then on.
You provide
access_tokenrefresh_tokenclient_idclient_secret
Limits we pace to
500 calls a minute, per connection
API covered
Calendly API v2 (OpenAPI 3.1.0)api.calendly.com
Built from
Calendly's documentation, read 22 October 2026developer.calendly.comdeveloper.calendly.com
Service file
Version 1.0.0, signed (Ed25519)
Cached reads
43 of 43 reads, for up to 5 minutes; a write clears what it affects
Shared entities
4, so ask can line Calendly up with your other systems
Data
Processed and stored in Sydney, Australia. No US region yet

Capabilities

What an AI agent can do in Calendly.

65 actions in 30 areas. Every one carries its effect, so a key can allow the reads and hold the rest.

  • 43readlook, never change
  • 13writecreate and update
  • 9destructivewait for a confirmation
  1. Contacts

    5

    2 read · 2 write · 1 destructive

    List Contacts · Create Contact · Get Contact · Update Contact

  2. Meeting recaps

    5

    3 read · 1 write · 1 destructive

    List Recaps · Get Recap · Get Transcript · Update Recap

  3. Webhook subscriptions

    5

    3 read · 1 write · 1 destructive

    Create Webhook Subscription · List Webhook Subscriptions · Get Webhook Subscription · Delete Webhook Subscription

  4. Event types

    4

    2 read · 2 write · 0 destructive

    List User's Event Types · Create Event Type · Get Event Type · Update Event Type

  5. Organization invitations

    4

    2 read · 1 write · 1 destructive

    Invite User to Organization · List Organization Invitations · Get Organization Invitation · Revoke User's Organization Invitation

  6. Invitee no shows

    3

    1 read · 1 write · 1 destructive

    Create Invitee No Show · Get Invitee No Show · Delete Invitee No Show

  7. Organization memberships

    3

    2 read · 0 write · 1 destructive

    List Organization Memberships · Get Organization Membership · Remove User from Organization

  8. Scheduled events

    3

    2 read · 0 write · 1 destructive

    List Events · Get Event · Cancel Event

22 more areas · 33 actions
  • Contact custom field definitions 2
  • Data compliance 2
  • Event invitees 2
  • Event type availability schedules 2
  • Group relationships 2
  • Groups 2
  • Routing form submissions 2
  • Routing forms 2
  • Teams 2
  • User availability schedules 2
  • Users 2
  • Activity log entries 1
  • Event type available times 1
  • Event type memberships 1
  • Invitees 1
  • Locations 1
  • One off event types 1
  • Organizations 1
  • Outgoing communications 1
  • Scheduling links 1
  • Shares 1
  • User busy times 1

Top actions

The Calendly API, shaped for agents.

The ids your agent types, what each does, and the one name it shares with other systems. 28 of Calendly's 28 action names are shared with at least one other connector, so an agent learns them once.

ActionWhat it doesEffectSame name in
calendly.scheduled_events.listList EventsReturns a list of Events.readcomm.event.list61 connectors
calendly.contacts.listList ContactsReturns a collection of Contacts.readcrm.contact.list177 connectors
calendly.groups.listList GroupsReturns a list of groups.readidentity.group.list262 connectors
calendly.users.getGet userReturns information about a specified User.readidentity.user.get399 connectors
calendly.scheduled_events.getGet EventReturns information about a specified Event.readcomm.event.get59 connectors
calendly.contacts.createCreate ContactCreate a new Contact.writecrm.contact.create161 connectors
calendly.contacts.updateUpdate ContactUpdate an existing Contact.writecrm.contact.update159 connectors
calendly.groups.getGet GroupReturns information about a specified Group.readidentity.group.get212 connectors
calendly.users.meGet current userReturns basic information about your user account.readidentity.current_user.get307 connectors
calendly.contacts.deleteDelete ContactDelete an existing Contact.destructivecrm.contact.delete147 connectors
calendly.event_invitees.listList Event InviteesReturns a list of Invitees for an event.readcomm.event_attendee.list12 connectors
calendly.event_types.createCreate Event TypeCreate a new Event Type **NOTE:** * Currently, this endpoint only supports one-on-one event types (kind: "solo").writecomm.booking_page.create4 connectors

Try it

Prompts to paste into Claude.

Each one names the Calendly actions it will call, so you know what it reads and what it changes before you send it.

  1. Readread

    Find the Calendly contacts with no email address, so we can clean them up.

    callscalendly.contacts.list

  2. Writewrite

    Create Contact in Calendly. Show me exactly what you will send before you save it.

    callscalendly.contacts.create

Governance for Calendly

Destructive actions wait for a yes.

9 Calendly actions are destructive. These are all of them:

  • Delete Contactcalendly.contacts.delete
  • Cancel Eventcalendly.scheduled_events.cancel
  • Delete Webhook Subscriptioncalendly.webhook_subscriptions.delete
  • Revoke User's Organization Invitationcalendly.organization_invitations.revoke
  • Delete Recapcalendly.meeting_recaps.delete
  • Delete Invitee No Showcalendly.invitee_no_shows.delete
  • Remove User from Organizationcalendly.organization_memberships.delete
  • Delete Invitee Datacalendly.data_compliance.delete_invitee_data
  • Delete Scheduled Event Datacalendly.data_compliance.delete_scheduled_event_data

A destructive action runs only with confirm: true. Under the human policy the agent cannot confirm for itself: the run stops until a named person approves, in the console or from a signed link in an email. The cap on a key is refused before the call is sent, never after.

docalendly.contacts.deleteconfirm_policy: human

Delete Contact?

intent: the user asked me to delete Contact

run suspended · waiting for a named person · key calendly-agent cannot confirm itself
In the console, or from an emailed signed link.
a key for this connector
account {  op: "keys.create", name: "calendly-agent",  allowed_actions: ["calendly.*"], cap_calls: 2000,  confirm_policy: "human_for_writes",  approval_rules: [    { match: "calendly.contacts.delete", approver: "[email protected]" },    { match: "calendly.scheduled_events.cancel", approver: "[email protected]" },    { match: "calendly.webhook_subscriptions.delete", approver: "[email protected]" }  ]}
Illustrative. Scoped to Calendly only, capped at 2,000 upstream calls, every write confirmed, and the destructive ones approved by a named person.

Cost

What Calendly costs on actionlake.

Every Calendly action is one upstream call, the only thing actionlake bills. Searching, check, cost, account and any call Calendly refused with 401, 403, 429 or a 5xx are free. Paid plans start at US$49 a month for 250,000 calls, with overage from US$0.30 down to US$0.18 per 1,000.

  • 1upstream call per actionall 65 Calendly actions
  • 16actions pageeach page of a long list is one call
  • 43reads can be cacheda cache hit costs nothing
  • 100,000calls a month, freepaid plans from US$49 a month for 250,000

See pricing

Action index

Every Calendly action.

65 actions by area: the id your agent calls, what it does, and its effect.

Contacts5
  • calendly.contacts.createCreate Contactwrite
  • calendly.contacts.deleteDelete Contactdestructive
  • calendly.contacts.getGet Contactread
  • calendly.contacts.listList Contactsread
  • calendly.contacts.updateUpdate Contactwrite
Meeting recaps5
  • calendly.meeting_recaps.deleteDelete Recapdestructive
  • calendly.meeting_recaps.getGet Recapread
  • calendly.meeting_recaps.get_transcriptGet Transcriptread
  • calendly.meeting_recaps.listList Recapsread
  • calendly.meeting_recaps.updateUpdate Recapwrite
Webhook subscriptions5
  • calendly.webhook_subscriptions.createCreate Webhook Subscriptionwrite
  • calendly.webhook_subscriptions.deleteDelete Webhook Subscriptiondestructive
  • calendly.webhook_subscriptions.getGet Webhook Subscriptionread
  • calendly.webhook_subscriptions.listList Webhook Subscriptionsread
  • calendly.webhook_subscriptions.sample_dataGet sample webhook dataread
Event types4
  • calendly.event_types.createCreate Event Typewrite
  • calendly.event_types.getGet Event Typeread
  • calendly.event_types.listList User's Event Typesread
  • calendly.event_types.updateUpdate Event Typewrite
Organization invitations4
  • calendly.organization_invitations.createInvite User to Organizationwrite
  • calendly.organization_invitations.getGet Organization Invitationread
  • calendly.organization_invitations.listList Organization Invitationsread
  • calendly.organization_invitations.revokeRevoke User's Organization Invitationdestructive
Invitee no shows3
  • calendly.invitee_no_shows.createCreate Invitee No Showwrite
  • calendly.invitee_no_shows.deleteDelete Invitee No Showdestructive
  • calendly.invitee_no_shows.getGet Invitee No Showread
Organization memberships3
  • calendly.organization_memberships.deleteRemove User from Organizationdestructive
  • calendly.organization_memberships.getGet Organization Membershipread
  • calendly.organization_memberships.listList Organization Membershipsread
Scheduled events3
  • calendly.scheduled_events.cancelCancel Eventdestructive
  • calendly.scheduled_events.getGet Eventread
  • calendly.scheduled_events.listList Eventsread
Contact custom field definitions2
  • calendly.contact_custom_field_definitions.getGet Contact Custom Field Definitionread
  • calendly.contact_custom_field_definitions.listList Contact Custom Field Definitionsread
Data compliance2
  • calendly.data_compliance.delete_invitee_dataDelete Invitee Datadestructive
  • calendly.data_compliance.delete_scheduled_event_dataDelete Scheduled Event Datadestructive
Event invitees2
  • calendly.event_invitees.getGet Event Inviteeread
  • calendly.event_invitees.listList Event Inviteesread
Event type availability schedules2
  • calendly.event_type_availability_schedules.listList Event Type Availability Schedulesread
  • calendly.event_type_availability_schedules.updateUpdate Event Type Availability Scheduleswrite
Group relationships2
  • calendly.group_relationships.getGet Group Relationshipread
  • calendly.group_relationships.listList Group Relationshipsread
Groups2
  • calendly.groups.getGet Groupread
  • calendly.groups.listList Groupsread
Routing form submissions2
  • calendly.routing_form_submissions.getGet Routing Form Submissionread
  • calendly.routing_form_submissions.listList Routing Form Submissionsread
Routing forms2
  • calendly.routing_forms.getGet Routing Formread
  • calendly.routing_forms.listList Routing Formsread
Teams2
  • calendly.teams.getGet Teamread
  • calendly.teams.listList Teamsread
User availability schedules2
  • calendly.user_availability_schedules.getGet User Availability Scheduleread
  • calendly.user_availability_schedules.listList User Availability Schedulesread
Users2
  • calendly.users.getGet userread
  • calendly.users.meGet current userread
Activity log entries1
  • calendly.activity_log_entries.listList activity log entriesread
Event type available times1
  • calendly.event_type_available_times.listList Event Type Available Timesread
Event type memberships1
  • calendly.event_type_memberships.listList Event Type Hostsread
Invitees1
  • calendly.invitees.createCreate Event Invitee (Scheduling API)write
Locations1
  • calendly.locations.listList User Meeting Locationsread
One off event types1
  • calendly.one_off_event_types.createCreate One-Off Event Typewrite
Organizations1
  • calendly.organizations.getGet Organizationread
Outgoing communications1
  • calendly.outgoing_communications.listList outgoing communicationsread
Scheduling links1
  • calendly.scheduling_links.createCreate Single-Use Scheduling Linkwrite
Shares1
  • calendly.shares.createCreate Sharewrite
User busy times1
  • calendly.user_busy_times.listList User Busy Timesread

Questions

The Calendly MCP server, answered.

Is there a Calendly MCP server for Claude?

Yes. actionlake is an MCP gateway: a remote MCP server that gives Claude, or another MCP client, 65 Calendly actions across contacts, meeting recaps, webhook subscriptions and event types, through the same eight tools it uses for every other connector. actionlake is independent; it is not made or endorsed by Calendly.

What do I need to connect Calendly?

Your own Calendly OAuth app, registered with Calendly (its client id and client secret), and the access and refresh tokens from one admin sign-in. actionlake has no Calendly app of its own, so this is not a one-step consent. actionlake renews the access token as it expires. The free call account { op: "connections.requirements", service: "calendly" } lists exactly what to paste.

Can an AI agent delete or change things in Calendly?

Only if its key allows it, and only with an explicit confirmation. 9 Calendly actions are destructive, including delete Contact, cancel Event and delete Webhook Subscription. Each runs only with confirm: true. Under the human confirm policy, or an approval rule on the key, the run waits until a named person approves it.

Will an AI agent use up my Calendly API limit?

actionlake paces every call to the limits in the Calendly service file: 500 calls a minute per connection. Repeated reads are answered from cache (43 Calendly actions can be), which never reaches Calendly.

What does a Calendly action cost?

One upstream call, the only unit actionlake bills. A list that pages bills one call per page (16 Calendly actions page). Cache hits, searches, dry runs and calls Calendly refused with 401, 403, 429 or a 5xx are free. The Free plan includes 100,000 calls a month with no card. Paid plans start at US$49 a month for 250,000 calls, with overage from US$0.30 down to US$0.18 per 1,000.

Which Calendly API does it cover?

The Calendly API v2 (OpenAPI 3.1.0) at api.calendly.com. It is built from Calendly's documentation as read on 22 October 2026. 65 actions in 30 areas, each one in the signed service file (version 1.0.0).

Does actionlake keep my Calendly data, and where?

actionlake processes and stores data in Sydney, Australia; there is no US region yet. Reads may be cached for up to 5 minutes, and a write clears the reads it affects. Each run's request and response is kept, sealed, for your plan's trace window: 1 day on Free, 3 days on Starter, 7 days on Pro, 14 days on Team, 30 days on Business and 30 days on Enterprise. Your Calendly credential is sealed under your tenant's key, never logged and never returned. Your traffic is not used to train models.

Which AI clients can use it?

Claude Code, tested by us end to end, and the Claude app as a custom connector, tested by us with an existing key. Other MCP clients that support remote servers over Streamable HTTP (MCP revisions 2025-06-18 and 2025-11-25) and OAuth dynamic client registration, or a bearer header, should connect the same way; we have not tested them. Or plain REST, under the same action names.

Give your agent Calendly today.

Start free - 100,000 calls/month, no card. No signup. Hard caps on every key. Cached answers are free.