Integration
Connect Google Calendar and Pennylane
When Attendee Response Changed fires in Google Calendar, your agent runs Create Company Customer V2 in Pennylane, or New Billing Subscription V2 in Pennylane to Create Event in Google Calendar. Describe the whole flow and it is built, tested on every scenario and kept running.
What the catalog holds today. Ask for anything missing and your agent reads the API documentation and adds it.
Build solutions, not workarounds.
What do you want Google Calendar and Pennylane to do together?
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Claude Code
Run this in the directory you want to work in.
claude mcp add --transport http -s project apiant-ai https://mcp.apiant.aiStart Claude Code there, approve the server, and sign in in the browser page it opens.
Claude Code guide (opens in a new tab)Claude, web and desktop
Open Customize, then Connectors, then Add custom connector, and paste the address. On Team and Enterprise an owner adds it first.
Setup guide (opens in a new tab)Cursor
Add the address to your MCP configuration as a server URL. Cursor signs you in in your browser.
Setup guide (opens in a new tab)Zed
Open Settings, then AI, then MCP Servers, then Add Server, then Add Remote Server.
Setup guide (opens in a new tab)Codex and the ChatGPT desktop app
Open Settings, then MCP servers, then Add server, and choose Streamable HTTP. From the terminal, Codex takes the address with its own add command and then signs you in.
Setup guide (opens in a new tab)Any other MCP client
Paste the address where the client asks for a remote MCP server URL, and name the server apiant-ai where it lets you. APIANT's skills reach the client over the same connection.
Setup guide (opens in a new tab)Example flows
What Google Calendar and Pennylane can do together
From Google Calendar to Pennylane
When Attendee Response Changed in Google Calendar
then Create Company Customer V2 in Pennylane
When Event Created in Google Calendar
then Create Customer Invoice V2 in Pennylane
From Pennylane to Google Calendar
When New Billing Subscription V2 in Pennylane
then Create Event in Google Calendar
When New Customer Invoice V2 in Pennylane
then Update Event in Google Calendar
Starting points drawn from the triggers and actions in the catalog today. Describe the flow you need, at any depth, and your agent builds it and tests every scenario before it ships.
Everything your agent can do with Google Calendar and Pennylane
Triggers and actions 11 triggers · 79 actions
Trigger
Attendee Response ChangedPolling trigger that fires when any attendee's RSVP changes to accepted, declined, or tentative. Returns attendee info and current status.
Trigger
Calendar Event SyncPolling trigger that returns full event data including details, attendees, and metadata. For real-time notifications with basic info, use Calendar Event Changes (webhook).
Trigger
Event Canceled or DeletedTriggers when a Google Calendar event is cancelled or deleted. Returns minimal data: event_id, summary (if available), and cancellation timestamp.
Trigger
Event CreatedPolling trigger that fires when a new calendar event is created. Returns event ID, summary, start/end times, and organizer info.
Trigger
Event Starting SoonTriggers when a calendar event is within a configured number of minutes from starting. Returns event details, time remaining, attendees, and join links when available.
Trigger
Event UpdatedTriggers when an existing Google Calendar event is modified. Returns the event ID, change type, and the specific fields that changed with their previous and new values.
Action
Acl DeleteDeletes an access control rule from a Google Calendar. Use when you need to remove sharing permissions for a user, group, or domain.
Action
Acl GetRetrieves a specific access control rule for a calendar. Use when you need to check permissions for a specific user, group, or domain.
Action
Acl InsertCreates an access control rule for a calendar. Use when you need to grant sharing permissions to a user, group, or domain.
Action
Acl ListRetrieves the list of access control rules (ACLs) for a specified calendar, providing the necessary 'rule_id' values required for updating specific ACL rules.
Action
Acl PatchUpdates an existing access control rule for a calendar using patch semantics (partial update). This allows modifying specific fields without affecting other properties. IMPORTANT: The ACL rule must already exist on the calendar. This action cannot create new rules. If you receive a 404 Not Found error, the rule does not exist - use ACL insert to create it first, or use ACL list to verify available rules. Each patch request consumes three quota units. For domain-type ACL rules, if PATCH fails with 500 error, this action will automatically fallback to UPDATE method.
Action
Acl UpdateUpdates an access control rule for the specified calendar.
Action
Acl WatchTool to watch for changes to ACL resources. Use when you need to set up real-time notifications for access control list modifications on a calendar.
Action
Batch EventsExecute up to 1000 event mutations (create/patch/delete) in one Google Calendar HTTP batch request with per-item status/results. Use this to materially reduce round-trips for bulk operations like migrations, cleanup, or large-scale updates.
Action
Calendar List DeleteTool to remove a calendar from the user's calendar list. Use when you need to unsubscribe from or hide a calendar from the user's list.
Action
Calendar List GetRetrieves metadata for a SINGLE specific calendar from the user's calendar list by its calendar ID. This action requires a calendarId parameter and returns details about that one calendar only. NOTE: This does NOT list all calendars. To list all calendars in the user's calendar list, use GOOGLECALENDAR_CALENDAR_LIST_LIST instead.
Action
Calendar List InsertInserts an existing calendar into the user's calendar list.
Action
Calendar List PatchUpdates an existing calendar on the user's calendar list using patch semantics. This method allows partial updates, modifying only the specified fields.
Action
Calendar List UpdateUpdates an existing entry on the user\'s calendar list.
Action
Calendar List WatchWatch for changes to CalendarList resources using push notifications. Use this to receive real-time updates when calendar list entries are modified.
Action
Calendars DeleteDeletes a secondary calendar. use calendars.clear for clearing all events on primary calendars.
Action
Calendars UpdateUpdates metadata for a calendar.
Action
Channels StopTool to stop watching resources through a notification channel. Use when you need to discontinue push notifications for a specific channel subscription.
Action
Create CalendarCreates a new secondary Google Calendar with the specified title and optional settings. Use this action when you need to create a new calendar for organizing events separately from the primary calendar. The authenticated user becomes the owner of the newly created calendar. Optional parameters include description, location, and timezone.
Action
Create EventCreates an event on a google calendar, needing rfc3339 utc start/end times (end after start) and write access to the calendar. by default, adds the organizer as an attendee unless exclude organizer is set to true.
Action
Delete EventDeletes a specified event by `event id` from a google calendar (`calendar id`); this action is idempotent and raises a 404 error if the event is not found.
Action
Duplicate CalendarCreates a new, empty google calendar with the specified title (summary).
Action
Events GetRetrieves a SINGLE event by its unique event_id (REQUIRED). This action does NOT list or search events - it fetches ONE specific event when you already know its ID. If you want to list events within a time range, search for events, or filter by criteria like time_min/time_max, use GOOGLECALENDAR_EVENTS_LIST instead.
Action
Events ImportTool to import an event as a private copy to a calendar. Use when you need to add an existing event to a calendar using its iCalUID. Only events with eventType='default' can be imported.
Action
Events InstancesReturns instances of the specified recurring event.
Action
Events ListReturns events on the specified calendar.
Action
Events List All CalendarsReturn a unified event list across all calendars in the user's calendar list for a given time range. Use when you need a single view of all events across multiple calendars. An inverted or incorrect time range silently returns empty results rather than an error. An empty `items` list means no events matched the filters—adjust `time_min`, `time_max`, or `q` before concluding no events exist.
Action
Events MoveMoves an event to another calendar, i.e., changes an event's organizer.
Action
Events WatchWatch for changes to events resources.
Action
Find EventFinds events in a specified google calendar using text query, time ranges (event start/end, last modification), and event types; ensure `timemin` is not chronologically after `timemax` if both are provided.
Action
Find Free SlotsFinds free/busy time slots in google calendars for specified calendars within a defined time range (defaults to the current day utc if `time min`/`time max` are omitted), enhancing busy intervals with event details; `time min` must precede `time max` if both are provided.
Action
Free Busy QueryReturns free/busy information for a set of calendars.
Action
Get CalendarRetrieves a specific google calendar, identified by `calendar id`, to which the authenticated user has access.
Action
Get Current Date TimeGets the current date and time, allowing for a specific timezone offset.
Action
List Acl RulesRetrieves the list of access control rules (acls) for a specified calendar, providing the necessary 'rule id' values required for updating specific acl rules.
Action
List CalendarsRetrieves calendars from the user's google calendar list, with options for pagination and filtering.
Action
Patch CalendarPartially updates (patches) an existing google calendar, modifying only the fields provided; `summary` is mandatory and cannot be an empty string, and an empty string for `description` or `location` clears them.
Action
Patch EventUpdates specified fields of an existing event in a google calendar using patch semantics (array fields like `attendees` are fully replaced if provided); ensure the `calendar id` and `event id` are valid and the user has write access to the calendar.
Action
Quick AddParses natural language text to quickly create a basic google calendar event with its title, date, and time, suitable for simple scheduling; does not support direct attendee addition or recurring events, and `calendar id` must be valid if not 'primary'.
Action
Remove AttendeeRemoves an attendee from a specified event in a google calendar; the calendar and event must exist.
Action
Settings GetTool to return a single user setting for the authenticated user. Use when you need to retrieve a specific calendar setting value.
Action
Settings ListReturns all user settings for the authenticated user.
Action
Settings WatchWatch for changes to settings resources.
Action
Sync EventsSynchronizes google calendar events, performing a full sync if no `sync token` is provided or if a 410 gone error (due to an expired token) necessitates it, otherwise performs an incremental sync for events changed since the `sync token` was issued.
Action
Update Acl RuleUpdates an access control rule for the specified calendar.
Action
Update EventUpdates an existing event by `event id` in a google calendar; this is a full put replacement, so provide all desired fields as unspecified ones may be cleared or reset.
Trigger
New Billing Subscription V2Triggers when a new billing subscription is created in Pennylane.
Trigger
New Customer Invoice V2Triggers when a new customer invoice or credit note is created in Pennylane.
Trigger
New Customer V2Triggers when a new customer (company or individual) is created in Pennylane.
Trigger
New Product V2Triggers when a new product is created in Pennylane.
Trigger
New Quote V2Triggers when a new quote is created in Pennylane.
Action
Add supplierCreates a supplier in Pennylane and returns the new supplier record.
Action
Create Company Customer V2Creates a company customer in Pennylane with its billing address, contact and invoicing details, and returns the new customer.
Action
Create Customer Invoice V2Creates a draft or finalized customer invoice (or credit note) in Pennylane for an existing customer.
Action
Create Individual Customer V2Creates an individual (person) customer in Pennylane with their name, billing address and invoicing preferences.
Action
Create Product V2Creates a product in Pennylane with its label, price before tax and VAT rate, and returns the created product.
Action
Create Quote V2Creates a quote for a customer in Pennylane, with its line items, dates and optional discount.
Action
Finalize customer invoiceFinalizes a draft customer invoice or credit note in Pennylane, assigning its number and locking it from further edits.
Action
Get Billing Subscription V2Returns one billing subscription, including its schedule, status, customer and invoice settings.
Action
Get supplierReturns a single supplier from Pennylane by its id, including contact, address, payment terms and ledger account.
Action
Get supplier invoiceReturns a single supplier invoice from Pennylane by its ID, including amounts, dates, supplier, and payment status.
Action
Get transactionReturns a single bank transaction by its id, including amount, currency, date, bank account, categories and linked customer or supplier.
Action
List bank accountsReturns the company's bank accounts with their currency, balance, journal and ledger account.
Action
List billing subscriptionsReturns the billing subscriptions in the Pennylane company, optionally filtered by status, customer or start date.
Action
List categoriesReturns the analytical categories defined in the Pennylane company, optionally filtered by group, label or code.
Action
List customer invoicesReturns customer invoices and credit notes, optionally filtered and sorted.
Action
List customersReturns a list of company and individual customers in Pennylane, optionally filtered and sorted.
Action
List ledger accountsReturns the company's ledger accounts (chart of accounts), up to 1000 per call, optionally filtered by number, id or enabled status.
Action
List ledger entriesReturns the ledger entries of your Pennylane company, optionally filtered by id, date or journal and sorted by id or date.
Action
List productsReturns the products in the Pennylane company, optionally filtered by label, reference or id.
Action
List quotesReturns the quotes in your Pennylane company, optionally filtered by customer or status.
Action
List supplier invoicesReturns the supplier invoices in your Pennylane company, optionally filtered and sorted.
Action
List suppliersReturns the suppliers in your Pennylane company, optionally filtered and sorted.
Action
List transactionsReturns the bank transactions in your Pennylane company, optionally filtered by bank account, journal, date or id.
Action
Retrieve Customer V2Returns one customer (company or individual) by its Pennylane id, including contact details, addresses and billing settings.
Action
Retrieve Invoice V2Returns one customer invoice or credit note, including its amounts, status, customer and links to its lines and payments.
Action
Retrieve Product V2Returns one Pennylane product by its id, including price, VAT rate, unit, ledger account and custom field values.
Action
Retrieve Quote V2Returns a single quote by its ID, including amounts, status, customer and dates.
Action
Update Billing Subscription V2Updates a billing subscription in Pennylane: stop or resume it, change its invoicing mode, payment terms, schedule, customer or invoice content.
Action
Update Company Customer V2Updates an existing company customer in Pennylane and returns the updated customer.
Action
Update customer invoiceUpdates a customer invoice in Pennylane. Draft invoices accept all fields; finalized invoices accept only label, external reference, transaction reference, invoice line imputation/performance dates and installments.
Action
Update Individual Customer V2Updates an individual (person) customer in Pennylane and returns the updated customer.
Action
Update Product V2Updates an existing product in Pennylane, such as its label, price, VAT rate or custom fields.
Action
Update Quote V2Updates an existing quote in Pennylane — its dates, customer, texts, discount, language and invoice lines — and returns the updated quote.
Action
Update supplierUpdates an existing supplier in Pennylane and returns the updated supplier.
No trigger or action matches that. Ask your agent to add it: it reads the API documentation and builds what you describe.
Each app on its own
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Questions
Google Calendar and Pennylane, answered
What can start an automation from Google Calendar?
Any of Google Calendar's 6 triggers in the catalog, including Attendee Response Changed, Event Created, Event Updated and Calendar Event Sync. Describe the moment in plain language and your agent picks the right one.
What can your agent do in Pennylane when something happens in Google Calendar?
Any of Pennylane's 34 actions, including Create Company Customer V2, Create Customer Invoice V2, Create Individual Customer V2 and Create Product V2. Your agent maps the data both ways and tests every scenario before it ships.
Can it also run from Pennylane to Google Calendar?
Yes. When something happens in Pennylane, your agent can act in Google Calendar too. This page covers both directions: Pennylane's triggers and Google Calendar's actions are listed here as well.
Do I have to build a connector for Google Calendar or Pennylane?
No. Both are in the catalog with their triggers and actions. You describe the automation; your agent builds it, tests every scenario and keeps it running.
Can my AI client use Google Calendar and Pennylane without building an automation?
Yes. With your AI client connected to APIANT, ask it to do something in either app once and it runs that action on the spot. Ask for an automation and your agent builds it, tests every scenario and keeps it running. One connection covers both.
What happens when something fails?
Your agent works that out for you. It plans the failure paths along with the happy path, then tests every scenario before it ships.
Is there a free plan?
Yes. Every plan includes the agent, including free, and building from your own AI client spends no assistant credits.