Connectors · Workspace
Google Calendar MCP server for AI agents.
actionlake is an MCP gateway: one remote MCP server that connects Claude and other MCP clients to Google Calendar and the rest of your systems. It gives your agent 38 Google Calendar actions (12 reads, 19 writes and 7 that wait for a confirmation) and holds the Google Calendar credential itself, so the agent never does. It paces Google Calendar's limits and records every call. Connecting Google Calendar needs your own Google Calendar 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/mcpdo { action: "gws_calendar.events.list", intent: "check which Google Calendar account is connected"}# List calendar events · read · 1 upstream call- 38actionsin one signed file
- 12readlook, never change
- 19writecreate and update
- 7wait for a yesdestructive, confirmed first
Set up
Connect Google Calendar in three steps.
- 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 - 02
Connect Google Calendar.
OAuth 2.0, authorization code with PKCE. You register your own OAuth app with Google Calendar, 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, Google Calendar needs an OAuth app of your own, registered in its developer portal. actionlake has no Google Calendar app to lend you.
access_tokenAccess token from one sign-in with your own OAuth apprefresh_tokenRefresh token from the same sign-in; the access token is renewed from itclient_idGoogle OAuth client idclient_secretGoogle OAuth client secret
account { op: "connections.requirements", service: "gws_calendar" } # free: exactly what to paste, and what is found for you - 03
Make the first call. Check before a write.
Ask in plain words; Claude picks the action. Before anything changes,
checkvalidates the call and prices it, for free.do { action: "gws_calendar.events.list" }# list calendar events · read · 1 upstream callcheck { action: "gws_calendar.events.import", input: { … } }# free: inputs, permissions, cost and confirmations, nothing sent
Google Calendar at a glance
- Sign-in
- OAuth 2.0, authorization code with PKCE. You register your own OAuth app with Google Calendar, 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
- 600 calls a minute, per connection
- API covered
- Google Calendar API 3
www.googleapis.com/calendar/v3 - Built from
- Google Calendar's documentation, read 8 September 2026developers.google.com
- Service file
- Version 1.0.0, signed (Ed25519)
- Cached reads
- 12 of 12 reads, for up to an hour; a write clears what it affects
- Ready-made plans
- 6 in the store
- Shared entities
- 2, so ask can line Google Calendar up with your other systems
- Data
- Processed and stored in Sydney, Australia. No US region yet
Capabilities
What an AI agent can do in Google Calendar.
38 actions in 1 area. Every one carries its effect, so a key can allow the reads and hold the rest.
- 12readlook, never change
- 19writecreate and update
- 7destructivewait for a confirmation
Calendar
3812 read · 19 write · 7 destructive
List calendar events · List the user's calendars · Import a calendar event · Create a calendar event
Top actions
The Google Calendar API, shaped for agents.
The ids your agent types, what each does, and the one name it shares with other systems. 25 of Google Calendar's 25 action names are shared with at least one other connector, so an agent learns them once.
| Action | What it does | Effect | Same name in |
|---|---|---|---|
gws_calendar.events.listList calendar events | List events on a calendar within a time window, optionally expanding recurrences. | read | comm.event.list61 connectors |
gws_calendar.calendar_list.listList the user's calendars | List every calendar in the authenticated user's calendar list, with their access roles. | read | comm.calendar.list14 connectors |
gws_calendar.events.importImport a calendar event | Import an existing event, preserving its original iCalendar UID. | write | comm.event.create52 connectors |
gws_calendar.acl.listList a calendar's access rules | List who may see or change a calendar, and at what level. | read | comm.calendar_permission.list3 connectors |
gws_calendar.events.deleteDelete a calendar event | Remove an event from a calendar. | destructive | comm.event.delete45 connectors |
gws_calendar.calendars.insertCreate a calendar | Create a new secondary calendar owned by the authenticated user. | write | comm.calendar.create11 connectors |
gws_calendar.acl.watchWatch a calendar's access rules | Register a webhook channel to be notified when a calendar's sharing changes. | write | automation.webhook.create209 connectors |
gws_calendar.events.watchWatch a calendar's events | Register a webhook channel to be notified when a calendar's events change. | write | automation.webhook.create209 connectors |
gws_calendar.acl.getGet one calendar access rule | Fetch a single sharing rule by its id. | read | comm.calendar_permission.get2 connectors |
gws_calendar.freebusy.queryQuery free/busy information | Ask when a set of calendars is busy across a time window. | read | comm.availability.query5 connectors |
gws_calendar.events.instancesList a recurring event's occurrences | List the individual occurrences a recurring event expands into. | read | comm.event_instance.list3 connectors |
gws_calendar.colors.getGet the calendar colour palette | Fetch the fixed palette of colour ids calendars and events may use. | read | platform.picklist_value.list52 connectors |
Try it
Prompts to paste into Claude.
Each one names the Google Calendar actions it will call, so you know what it reads and what it changes before you send it.
- Readread
What is on the Google Calendar calendar this week?
calls
gws_calendar.events.list - Plandestructive
Cancel the remaining instances of a recurring meeting in Google Calendar. Ask me before anything is sent or changed.
calls
gws_calendar.events.getgws_calendar.events.instancesgws_calendar.events.patchgws_calendar.events.deletegws_calendar.events.list - Plandestructive
Remove a leaver's calendar access and hand over ownership in Google Calendar. Ask me before anything is sent or changed.
calls
gws_calendar.calendars.getgws_calendar.acl.getgws_calendar.acl.deletegws_calendar.calendars.transfer_ownershipgws_calendar.acl.list - Writewrite
Import a calendar event in Google Calendar. Show me exactly what you will send before you save it.
calls
gws_calendar.events.import
The plan store
Ready-made plans for Google Calendar.
6 plans in the store. Install one and your agent runs it by name; the reply says which connections are still missing. A schedule can run a plan on a timetable. There are no triggers or webhooks, by design.
Audit who a calendar is shared with
Use it when Someone needs to know who currently has access to a calendar and at what level.
Build a weekly agenda digest from the calendar
Use it when Someone wants a readable rundown of what is on a calendar over a date range.
Find a free slot and book a meeting
Use it when A meeting needs scheduling across several people and the time must be checked before anything is sent.
A person decides
Book 'summary' in the window window for attendees.
Create a team calendar and share it with the team
Use it when A new shared team or project calendar has to be stood up and handed to a group.
A person decides
Grant role access on the new calendar 'summary' to members, which emails them an invitation.
Cancel the remaining instances of a recurring meeting
Use it when A recurring meeting should stop and the attendees must be told.
A person decides
Cancel the recurring event event id and every occurrence from cutoff onward, emailing all attendees.
Remove a leaver's calendar access and hand over ownership
Use it when Someone has left or changed role and their access to a shared calendar must be revoked.
A person decides
Delete access rule rule id on calendar calendar id and transfer ownership to new data owner.
account { op: "plans.install", slug: "gws_calendar-audit-calendar-sharing" }
# then ask for it by name; a schedule can run it on a timetableGovernance for Google Calendar
Destructive actions wait for a yes.
7 Google Calendar actions are destructive. These are all of them:
- Delete a calendar event
gws_calendar.events.delete - Clear a calendar
gws_calendar.calendars.clear - Transfer a calendar's ownership
gws_calendar.calendars.transfer_ownership - Delete a calendar
gws_calendar.calendars.delete - Revoke access to a calendar
gws_calendar.acl.delete - Stop a calendar notification channel
gws_calendar.channels.stop - Unsubscribe from a calendar
gws_calendar.calendar_list.delete
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.
Delete a calendar event?
intent: the user asked me to delete a calendar event
account { op: "keys.create", name: "gws-calendar-agent", allowed_actions: ["gws_calendar.*"], cap_calls: 2000, confirm_policy: "human_for_writes", approval_rules: [ { match: "gws_calendar.events.delete", approver: "[email protected]" }, { match: "gws_calendar.calendars.clear", approver: "[email protected]" }, { match: "gws_calendar.calendars.transfer_ownership", approver: "[email protected]" } ]}Cost
What Google Calendar costs on actionlake.
Every Google Calendar action is one upstream call, the only thing actionlake bills. Searching, check, cost, account and any call Google Calendar 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 38 Google Calendar actions
- 7actions pageeach page of a long list is one call
- 12reads can be cacheda cache hit costs nothing
- 100,000calls a month, freepaid plans from US$49 a month for 250,000
Action index
Every Google Calendar action.
38 actions by area: the id your agent calls, what it does, and its effect.
Calendar38
gws_calendar.acl.deleteRevoke access to a calendardestructivegws_calendar.acl.getGet one calendar access rulereadgws_calendar.acl.insertGrant access to a calendarwritegws_calendar.acl.listList a calendar's access rulesreadgws_calendar.acl.patchPatch a calendar access rulewritegws_calendar.acl.updateReplace a calendar access rulewritegws_calendar.acl.watchWatch a calendar's access ruleswritegws_calendar.calendar_list.deleteUnsubscribe from a calendardestructivegws_calendar.calendar_list.getGet one calendar list entryreadgws_calendar.calendar_list.insertSubscribe to a calendarwritegws_calendar.calendar_list.listList the user's calendarsreadgws_calendar.calendar_list.patchPatch a calendar list entrywritegws_calendar.calendar_list.updateReplace a calendar list entrywritegws_calendar.calendar_list.watchWatch the user's calendar listwritegws_calendar.calendars.clearClear a calendardestructivegws_calendar.calendars.deleteDelete a calendardestructivegws_calendar.calendars.getGet a calendarreadgws_calendar.calendars.insertCreate a calendarwritegws_calendar.calendars.patchPatch a calendarwritegws_calendar.calendars.transfer_ownershipTransfer a calendar's ownershipdestructivegws_calendar.calendars.updateReplace a calendarwritegws_calendar.channels.stopStop a calendar notification channeldestructivegws_calendar.colors.getGet the calendar colour palettereadgws_calendar.events.deleteDelete a calendar eventdestructivegws_calendar.events.getGet one calendar eventreadgws_calendar.events.importImport a calendar eventwritegws_calendar.events.insertCreate a calendar eventwritegws_calendar.events.instancesList a recurring event's occurrencesreadgws_calendar.events.listList calendar eventsreadgws_calendar.events.moveMove a calendar event to another calendarwritegws_calendar.events.patchPatch a calendar eventwritegws_calendar.events.quick_addQuick-add a calendar event from textwritegws_calendar.events.updateReplace a calendar eventwritegws_calendar.events.watchWatch a calendar's eventswritegws_calendar.freebusy.queryQuery free/busy informationreadgws_calendar.settings.getGet one calendar preferencereadgws_calendar.settings.listList calendar preferencesreadgws_calendar.settings.watchWatch calendar preferenceswrite
Questions
The Google Calendar MCP server, answered.
Is there a Google Calendar MCP server for Claude?
Yes. actionlake is an MCP gateway: a remote MCP server that gives Claude, or another MCP client, 38 Google Calendar actions, through the same eight tools it uses for every other connector. actionlake is independent; it is not made or endorsed by Google Calendar.
What do I need to connect Google Calendar?
Your own Google Calendar OAuth app, registered with Google Calendar (its client id and client secret), and the access and refresh tokens from one admin sign-in. actionlake has no Google Calendar 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: "gws_calendar" } lists exactly what to paste.
Can an AI agent delete or change things in Google Calendar?
Only if its key allows it, and only with an explicit confirmation. 7 Google Calendar actions are destructive, including delete a calendar event, clear a calendar and transfer a calendar's ownership. 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 Google Calendar API limit?
actionlake paces every call to the limits in the Google Calendar service file: 600 calls a minute per connection. Repeated reads are answered from cache (12 Google Calendar actions can be), which never reaches Google Calendar.
What does a Google Calendar action cost?
One upstream call, the only unit actionlake bills. A list that pages bills one call per page (7 Google Calendar actions page). Cache hits, searches, dry runs and calls Google Calendar 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 Google Calendar API does it cover?
The Google Calendar API 3 at www.googleapis.com/calendar/v3. It is built from Google Calendar's documentation as read on 8 September 2026. 38 actions in 1 area, each one in the signed service file (version 1.0.0).
Does actionlake keep my Google Calendar data, and where?
actionlake processes and stores data in Sydney, Australia; there is no US region yet. Reads may be cached for up to an hour, 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 Google Calendar 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 Google Calendar today.
Start free - 100,000 calls/month, no card. No signup. Hard caps on every key. Cached answers are free.
