--- title: "Connect Google Calendar and FreeAgent - APIANT.ai" description: "When \"Event Created\" fires in Google Calendar, your agent runs \"List Contacts\" in FreeAgent." canonical: "https://apiant.ai/connect/google-calendar-to-freeagent" --- # Connect Google Calendar and FreeAgent When **Event Created** fires in [Google Calendar](https://apiant.ai/connections/google-calendar), your agent runs **List Contacts** in [FreeAgent](https://apiant.ai/connections/freeagent), or **New Invoice** in FreeAgent to **Create Event** in Google Calendar. Describe the whole flow and it is built, tested on every scenario and kept running. Google Calendar **6** triggers Google Calendar **45** actions FreeAgent **6** triggers FreeAgent **50** actions What the catalog holds today. Ask for anything missing and your agent reads the API documentation and adds it. ## What do you want Google Calendar and FreeAgent to do together? Give your AI client this address. `https://mcp.apiant.ai` One connection does both: ask your client to act in an app once, or have it build an automation that keeps running. Any client that takes a remote MCP server. Nothing to install. Create your free account, then sign in once in your browser. ### Set it up in your client ### Claude Code Run this in the directory you want to work in. `claude mcp add --transport http -s project apiant-ai https://mcp.apiant.ai` Start Claude Code there, approve the server, and sign in in the browser page it opens. [Claude Code guide (opens in a new tab)](https://apiant.ai/docs/mcp/claude-code) ### 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)](https://apiant.ai/docs/mcp) ### 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)](https://apiant.ai/docs/mcp) ### Zed Open Settings, then AI, then MCP Servers, then Add Server, then Add Remote Server. [Setup guide (opens in a new tab)](https://apiant.ai/docs/mcp) ### 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)](https://apiant.ai/docs/mcp) ### 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)](https://apiant.ai/docs/mcp) Connecting Google Calendar and FreeAgent lets meeting time and client records stay in one story. Calendar events can look up the matching FreeAgent contact and project and log a timeslip, while new FreeAgent invoices and projects can put dates and dedicated calendars into Google Calendar. The agent builds the flow, tests every scenario and keeps it running. Example flows ## What Google Calendar and FreeAgent can do together ### From Google Calendar to FreeAgent - When **Event Created** in Google Calendar then **List Contacts** in FreeAgent - When **Event Updated** in Google Calendar then **Create Contact** in FreeAgent ### From FreeAgent to Google Calendar - When **New Invoice** in FreeAgent then **Create Event** in Google Calendar - When **New Project** in FreeAgent 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 FreeAgent ## Triggers and actions 12 triggers · 95 actions - Trigger **Attendee Response Changed** Polling trigger that fires when any attendee's RSVP changes to accepted, declined, or tentative. Returns attendee info and current status. - Trigger **Calendar Event Sync** Polling 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 Deleted** Triggers when a Google Calendar event is cancelled or deleted. Returns minimal data: event_id, summary (if available), and cancellation timestamp. - Trigger **Event Created** Polling trigger that fires when a new calendar event is created. Returns event ID, summary, start/end times, and organizer info. - Trigger **Event Starting Soon** Triggers 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 Updated** Triggers 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 Delete** Deletes an access control rule from a Google Calendar. Use when you need to remove sharing permissions for a user, group, or domain. - Action **Acl Get** Retrieves a specific access control rule for a calendar. Use when you need to check permissions for a specific user, group, or domain. - Action **Acl Insert** Creates an access control rule for a calendar. Use when you need to grant sharing permissions to a user, group, or domain. - Action **Acl List** Retrieves 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 Patch** Updates 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 Update** Updates an access control rule for the specified calendar. - Action **Acl Watch** Tool 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 Events** Execute 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 Delete** Tool 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 Get** Retrieves 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 Insert** Inserts an existing calendar into the user's calendar list. - Action **Calendar List Patch** Updates 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 Update** Updates an existing entry on the user\'s calendar list. - Action **Calendar List Watch** Watch for changes to CalendarList resources using push notifications. Use this to receive real-time updates when calendar list entries are modified. - Action **Calendars Delete** Deletes a secondary calendar. use calendars.clear for clearing all events on primary calendars. - Action **Calendars Update** Updates metadata for a calendar. - Action **Channels Stop** Tool to stop watching resources through a notification channel. Use when you need to discontinue push notifications for a specific channel subscription. - Action **Create Calendar** Creates 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 Event** Creates 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 Event** Deletes 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 Calendar** Creates a new, empty google calendar with the specified title (summary). - Action **Events Get** Retrieves 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 Import** Tool 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 Instances** Returns instances of the specified recurring event. - Action **Events List** Returns events on the specified calendar. - Action **Events List All Calendars** Return 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 Move** Moves an event to another calendar, i.e., changes an event's organizer. - Action **Events Watch** Watch for changes to events resources. - Action **Find Event** Finds 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 Slots** Finds 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 Query** Returns free/busy information for a set of calendars. - Action **Get Calendar** Retrieves a specific google calendar, identified by `calendar id`, to which the authenticated user has access. - Action **Get Current Date Time** Gets the current date and time, allowing for a specific timezone offset. - Action **List Acl Rules** Retrieves 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 Calendars** Retrieves calendars from the user's google calendar list, with options for pagination and filtering. - Action **Patch Calendar** Partially 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 Event** Updates 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 Add** Parses 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 Attendee** Removes an attendee from a specified event in a google calendar; the calendar and event must exist. - Action **Settings Get** Tool to return a single user setting for the authenticated user. Use when you need to retrieve a specific calendar setting value. - Action **Settings List** Returns all user settings for the authenticated user. - Action **Settings Watch** Watch for changes to settings resources. - Action **Sync Events** Synchronizes 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 Rule** Updates an access control rule for the specified calendar. - Action **Update Event** Updates 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 Bank Transaction** Triggers when a new transaction appears in a FreeAgent bank account. - Trigger **New Contact** Triggers when a new contact is created. - Trigger **New Invoice** Triggers when a new invoice is created. - Trigger **New or Updated Contact** Triggers when a contact is created or changed in FreeAgent. - Trigger **New or Updated Timeslip** Triggers when a timeslip (time entry) is created or edited in FreeAgent. - Trigger **New Project** Triggers when a new project is created. - Action **Convert Estimate to Invoice** Converts an estimate into an invoice, marking the estimate as Invoiced and returning the URL of the new invoice. - Action **Create Bill** Creates a bill from a supplier contact in FreeAgent, with its line items, and returns the new bill. - Action **Create Contact** Create a new contact. - Action **Create Credit Note** Creates a draft credit note for a FreeAgent contact, with optional line items. - Action **Create Estimate** Creates a new estimate, quote or proposal in FreeAgent for a contact or project, optionally with line items. - Action **Create Expense** Creates an expense claim in FreeAgent for a user, with its category, date, amount and sales tax details. - Action **Create Invoice** Create an invoice for a contact. - Action **Create Mileage Claim** Creates a mileage claim (a mileage expense) for a user in FreeAgent and returns the new claim. - Action **Create Note** Adds a note to a FreeAgent contact or project. - Action **Create Price List Item** Creates a price list item in FreeAgent that can be added to invoices and estimates. - Action **Create Project** Create a project for a contact. - Action **Create Task** Creates a task under a FreeAgent project. - Action **Create Timeslip** Create a timeslip (time tracking entry). - Action **Delete Contact** Delete a contact by id. - Action **Delete Invoice** Deletes an invoice from FreeAgent. - Action **Delete Timeslip** Deletes a timeslip from FreeAgent. - Action **Explain Bank Transaction** Explains a bank transaction in FreeAgent by creating a bank transaction explanation (categorising it, or matching it to an invoice, bill, transfer or user payment). Returns the created explanation. - Action **Find Contact by Email** Finds FreeAgent contacts whose email or billing email matches the given address. - Action **Get Bill** Returns a single bill, including its line items, by its ID. - Action **Get Contact** Get a single contact by id. - Action **Get Credit Note** Returns a single FreeAgent credit note, including its line items, status and totals. - Action **Get Estimate** Returns a single FreeAgent estimate with its line items. - Action **Get Expense** Returns a single FreeAgent expense by its ID, including amounts, category, claimant and attachment details. - Action **Get Invoice** Get a single invoice by id. - Action **Get Note** Returns a single note attached to a FreeAgent contact or project, including its text, author and timestamps. - Action **Get Price List Item** Returns a single price list item from FreeAgent by its ID. - Action **Get Project** Returns a single FreeAgent project by its ID, including its contact, status, budget and billing details. - Action **Get Timeslip** Returns a single FreeAgent timeslip, including its hours, date, user, project and task. - Action **List Bank Accounts** Returns the bank accounts in your FreeAgent company, optionally filtered to standard, credit card or PayPal accounts. - Action **List Bank Transactions** Returns the bank transactions in a FreeAgent bank account, optionally filtered by date range, last update time, or explanation status. - Action **List Bills** List bills. - Action **List Categories** Returns all accounting categories for the company, grouped into admin expenses, cost of sales, income and general categories, optionally including sub accounts. - Action **List Contacts** List contacts in FreeAgent. - Action **List Corporation Tax Returns** Returns the company's Corporation Tax Returns, including amount due, payment and filing deadlines, and filing/payment status. - Action **List Estimates** List estimates. - Action **List Expenses** List expenses. - Action **List Invoices** List invoices. - Action **List Projects** List projects. - Action **List Self Assessment Returns** Returns the Self Assessment (income tax) returns for a FreeAgent user, including payments due and filing status. - Action **List Tasks** Returns the tasks in your FreeAgent account, optionally filtered by status, project or last-updated date. - Action **List Timeslips** List timeslips (time tracking entries). - Action **List Users** Returns the users on the FreeAgent account, optionally filtered to staff or advisors. - Action **Mark Invoice as Cancelled** Marks a FreeAgent invoice as cancelled, writing it off as unpaid. The invoice must be sent and past its due date. - Action **Mark Invoice as Sent** Marks a FreeAgent invoice as sent without emailing it. Can also re-open a cancelled invoice. - Action **Update Bill** Updates an existing bill in FreeAgent — its supplier, reference, dates, rebilling, recurrence and bill items. Only the values you supply are changed. - Action **Update Contact** Update an existing contact. - Action **Update Expense** Updates an existing expense in FreeAgent, changing only the details you supply. - Action **Update Invoice** Updates an existing FreeAgent invoice's details, such as dates, contact, payment terms, comments and line items. Only the fields you fill in are changed. - Action **Update Project** Updates an existing FreeAgent project's name, client, status, budget, billing rate and dates. Only the fields you fill in are changed. - Action **Update Timeslip** Updates an existing timeslip in FreeAgent, changing its task, user, project, date, hours or comment. Fields left blank are not changed. ## Each app on its own - [ **Google Calendar** Google Calendar is a time management tool providing scheduling features, event reminders, and integration...](https://apiant.ai/connections/google-calendar) - [ **FreeAgent** FreeAgent is cloud accounting software for small businesses and freelancers — manage contacts, invoices...](https://apiant.ai/connections/freeagent) Reviews ## What our customers say ## More from Google Calendar - [ **Google Calendar to HubSpot** HubSpot is your all-in-one stop for all of your marketing software needs.](https://apiant.ai/connect/google-calendar-to-hubspot) - [ **Google Calendar to Salesforce** Salesforce is a leading enterprise customer relationship management (CRM) platform.](https://apiant.ai/connect/google-calendar-to-salesforce) - [ **Google Calendar to Slack** Slack is a messaging platform for teams. Post messages, manage channels, users, reminders, and react to...](https://apiant.ai/connect/google-calendar-to-slack) - [ **Google Calendar to Google Sheets** Google Sheets](https://apiant.ai/connect/google-calendar-to-google-sheets) - [ **Google Calendar to Stripe** Stripe is a payment processing platform for online businesses.](https://apiant.ai/connect/google-calendar-to-stripe) - [ **Google Calendar to Shopify** Shopify is a commerce platform for online stores and retail point-of-sale.](https://apiant.ai/connect/google-calendar-to-shopify) ## More into FreeAgent - [ **Mailchimp to FreeAgent** Mailchimp marketing automation and email platform.](https://apiant.ai/connect/mailchimp-to-freeagent) - [ **ActiveCampaign to FreeAgent** ActiveCampaign is a marketing automation, email marketing, and CRM platform.](https://apiant.ai/connect/activecampaign-to-freeagent) - [ **Asana to FreeAgent** Asana is a collaborative information manager for workspace.](https://apiant.ai/connect/asana-to-freeagent) - [ **Aplos to FreeAgent** Aplos is fund accounting and donor management software for churches and nonprofits: contacts and donors...](https://apiant.ai/connect/aplos-to-freeagent) - [ **Basecamp 3 to FreeAgent** Basecamp 3 is a project management and team collaboration tool by 37signals.](https://apiant.ai/connect/basecamp-3-to-freeagent) - [ **Beanstalk to FreeAgent** Beanstalk is a code hosting and deployment workflow tool for Git and Subversion.](https://apiant.ai/connect/beanstalk-to-freeagent) Questions ## Google Calendar and FreeAgent, answered ### ### Can meeting time in Google Calendar become billable time in FreeAgent? Yes. A new or updated Google Calendar event can trigger a lookup of FreeAgent contacts and projects, then create a timeslip for the meeting length. You choose the conditions, such as only logging time when the attendee matches a contact that has a project. ### ### What can FreeAgent do inside Google Calendar? A new FreeAgent invoice or project can create an event in Google Calendar, for example on an invoice due date. A new project can also create a separate Google Calendar named after that project so its work sits apart from the main calendar. ### ### What can start an automation from Google Calendar? Any of Google Calendar's 6 triggers in the catalog, including Event Created, Event Updated, Attendee Response Changed and Calendar Event Sync. Describe the moment in plain language and your agent picks the right one. ### ### What can your agent do in FreeAgent when something happens in Google Calendar? Any of FreeAgent's 50 actions, including Create Timeslip, List Contacts, Create Bill and Create Contact. Your agent maps the data both ways and tests every scenario before it ships. ### ### Can it also run from FreeAgent to Google Calendar? Yes. When something happens in FreeAgent, your agent can act in Google Calendar too. This page covers both directions: FreeAgent's triggers and Google Calendar's actions are listed here as well. ### ### Do I have to build a connector for Google Calendar or FreeAgent? 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 FreeAgent 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.