Cal MCP integration
Reads genuinely open slots, reserves and books a meeting mid-conversation, reschedules or cancels when plans move, and reassigns a booking to a free colleague.
168actions available
Three actions you can hand over today
Every action runs live through MCP. Nothing to build, nothing to maintain.
Create a new booking
Lyro creates a Cal.com booking for an event type at a customer-specified time during conversation. Your customer walks away with a confirmed meeting on their calendar.
Cancel booking via uid
Lyro cancels an existing Cal.com booking instantly using its unique ID. Your team handles cancellations immediately without customers needing to find and click an email link.
Check calendar availability
Lyro checks free/busy availability for a calendar to find open slots during the conversation. Your customer hears available times in real time instead of playing email tag.
How businesses use Cal + Lyro
Each card is one request a support team gets, and the Cal actions Lyro runs to close it.
Offer times that are actually free
Lyro reads the open slots on the event type alongside the busy periods already on the connected calendar, so the times it offers are ones the person can genuinely take.
Get Available Slots InfoCheck Calendar AvailabilityRetrieve Calendar Busy TimesBook the meeting inside the conversation
Lyro holds the slot while the last details are confirmed, creates the booking, and adds the extra attendee the customer wants on the call, so none of it goes back to email.
Reserve Slot for EventCreate a New BookingAdd AttendeeHandle the change of plan
When a time stops working, Lyro reschedules the booking by its reference, cancels it where that is what was asked for, or reassigns it to a colleague who is free instead.
Reschedule Booking by UIDCancel Booking via UIDReassign Booking with UIDKeep the schedule matching reality
Lyro updates an availability schedule when someone's hours change, marks a booking absent when nobody showed, and confirms the pending one that has been sitting waiting on approval.
Update Schedule by IDMark Booking Absent for UIDConfirm Booking by UID
How it works
Get started in 3 steps
Connect once, then just ask. There is no workflow builder to learn and nothing to maintain — Lyro reads the Cal actions it has and picks the ones a request needs.
Connect Cal
Authorize the Cal account your team already uses — one consent screen, no API keys, no mapping tables. Lyro can only do what you granted that account, and you can disconnect it at any time.
Tell your agent what you need
Describe the job the way you would hand it to a teammate. Lyro maps it to the Cal actions that close it and chains as many as the request needs.
Watch it work
The agent runs the actions inside the conversation the customer is already in, so nobody copies data between tabs and your team can take over at any point.
Get started free
Cal · Lyro
What can you do in Cal without me setting anything up?
These, right away:
- Add attendee
- Check calendar availability
- Cancel booking via uid
Great, let's start with the first one.
FAQ
Everything else about Cal
Setup, permissions, and the limits of what Lyro can do inside Cal.
Yes. Retrieve Team Event Types returns the event types a team exposes, Get Team Bookings shows what is already on their calendar, and Get Team Routing Forms reads the routing form that decides where a request goes, so a booking follows the team's own routing rules.
Every action available in Cal
All 168 actions your agent can call on Cal, straight from the live MCP connection.
Add attendee
Create a new attendee for an existing booking in Cal.com.
Add member to team
Adds a new member to a specified team within an organization by creating a team membership.
Add organization attribute option
Adds a new option to an organization's SINGLE_SELECT or MULTI_SELECT attribute.
Cancel booking via uid
Cancels an existing and active Cal.com booking using its unique identifier (UID).
Check calendar availability
Retrieves free/busy availability for a specified calendar to aid scheduling without revealing event details; requires an existing, accessible calendar, noting that data granularity can vary.
Check gcal synchronization status
Call this read-only action to verify the connection and synchronization status of a user's Google Calendar integration with Cal.
Check ics feed calendar endpoint
Checks an ICS feed URL (expected as a query parameter) to verify its validity, accessibility, and iCalendar data integrity.
Check stripe status
Verifies if Stripe is correctly connected to the Cal scheduling system and functional for processing payments, reporting only on the integration's status.
Check team stripe integration status
Retrieves the Stripe integration status and related information for a team, primarily to verify account connection, subscription details, or payment setup; this is a read-only operation that does not modify Stripe settings.
Confirm booking by uid
Confirms an existing booking by bookingUid if the booking exists and is in a state allowing confirmation (e.g., not already cancelled or confirmed); this finalizes the booking, does not modify its details, and should typically be performed once.
Connect to calendar
Initiates or checks the external connection status for a specified calendar, possibly returning a redirect URL for user authorization to complete integration, without altering calendar data.
Create membership for organization
Creates a new membership for a user within a Cal.com organization.
Create organization attributes
Creates a new custom attribute for an existing organization, used to enhance data collection for event bookings or user profiles.
Create organization team form workflow
Create a new workflow for routing forms within an organization team.
Create organization webhook by org ID
Creates a webhook for an organization that sends HTTP POST notifications to a specified URL when triggered by events (e.g., booking created, cancelled, meeting started).
Create or update team profile
Creates a new team profile, or updates one if a 'slug' matches, customizing branding, scheduling, privacy, and operational details.
Create phone call event
Schedules a phone call event in Cal.com using existing eventType, organization, and team IDs; this action only registers the event details and does not initiate the actual phone call.
Create phone call for event type
Configures Cal.ai phone call automation for a team event type, enabling AI-powered outbound calls for appointment reminders or custom conversations.
Create team event type
Creates a new event type for a specified team in Cal.com; ensure teamId, any provided scheduleId, hosts.userId, and destinationCalendar details are valid and accessible.
Create team event types with custom options
Creates a highly customizable Cal.com team event type with extensive scheduling, booking, and host assignment options; schedulingType is required, lengthInMinutes must be included in lengthInMinutesOptions, destination calendar details (from /api/v2/calendars) must be valid if provided, and host User IDs must be valid team members.
Create team in organization
Creates a new team with customizable attributes within an existing and accessible Cal.com organization specified by orgId.
Create team invite link
Creates a shareable invite link for a Cal.com team that allows new members to join.
Create team membership with role
Adds a user to a team with a specified role, acceptance status, and impersonation settings; ensure teamId and userId refer to existing, valid entities.
Create user availability schedule
Creates a Cal.com user availability schedule, defining its name, timezone, weekly recurring availability, and specific date overrides; if isDefault is true, this schedule replaces any existing default and applies to event types not linked to a specific schedule.
Create user schedule in organization
Creates a new schedule defining a user's availability with weekly slots and date-specific overrides in an organization; setting 'isDefault' to true may replace an existing default schedule for the user.
Create webhook for event type
Creates a webhook for an existing eventTypeId in Cal.com, sending notifications for specified triggers to a subscriberUrl that handles POST requests.
Decline booking with reason
Declines a pending booking using its bookingUid, optionally with a reason; this action is irreversible and applies only to bookings awaiting confirmation.
Delete all team event type webhooks
Permanently deletes all webhooks associated with a specific team event type.
Delete conference app connection
Disconnects the specified conferencing application (e.g., 'zoom', 'google_meet') for the Cal.com account, immediately terminating any ongoing call or meeting; use with caution.
Delete destination calendar by ID
Remove an existing destination calendar by its unique ID.
The tools Cal sits next to
Same connection, same setup. Pick the next one your team already uses.
Apaleo
Reports what a property portfolio contains, creates properties and units in bulk, maintains unit groups and attributes, and moves properties test to live.
Bookingmood
Checks live availability, amends confirmed stays, reconciles linked calendars, and keeps listing attributes accurate mid-conversation.
Calendly
Checks open times, issues single-use scheduling links, cancels bookings, marks no-shows, and reads routing form answers.
Eventee
Answers attendee questions from the live roster, sends event invitations, adjusts sessions and halls, and keeps sponsor records current.
Lodgify
Checks property and room-type availability, captures enquiries and callback requests, triages the reservations inbox, and reconciles channel bookings.
Scheduleonce
Checks which slots are genuinely free, books one with the guest's details attached, creates the contact behind it, and handles cancellations and no-shows.
Ready to connect Cal?
Authorize the account and your agent has all 168 actions from the first conversation.