Integration
Connect Google Calendar to OpenRegister
When something happens in Google Calendar, your agent does the next thing in OpenRegister. Describe it 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 OpenRegister to do together?
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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.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 can start in OpenRegister
When Attendee Response Changed in Google Calendar
then Find Company by Name in OpenRegister
When Event Created in Google Calendar
then Find Company by URL in OpenRegister
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 OpenRegister
Triggers and actions 6 triggers · 40 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
Calendar List InsertInserts an existing calendar into the user's calendar list.
Action
Calendar List UpdateUpdates an existing entry on the user\'s calendar list.
Action
Calendars DeleteDeletes a secondary calendar. use calendars.clear for clearing all events on primary calendars.
Action
Calendars UpdateUpdates metadata for a calendar.
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 InstancesReturns instances of the specified recurring event.
Action
Events ListReturns events on the specified calendar.
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 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.
Action
Find Company by NameReturns German companies whose current or historical registered name matches the specified name.
Action
Find Company by URLFinds the German company behind a website URL and returns its company ID plus the email, phone and VAT ID found on the site.
Action
Find Insolvency ProceedingsReturns German insolvency proceedings (companies and natural persons) that match a free-text search and/or structured filters.
Action
Find People by NameReturns people from the German commercial register whose name matches the search text, optionally narrowed by city, date of birth or active status.
Action
Get Company Contact InformationRetrieve contact information for a German company: email, phone, VAT ID and the source web page.
Action
Get Company DetailsReturns the full register record of a German company by its OpenRegister ID.
Action
Get Company Historical OwnersRetrieves the full ownership history of a German company (GmbH only) across every shareholder list it has filed.
Action
Get Company HoldingsRetrieves the list of companies that a German company owns or has stakes in, including relation type and share amounts. Costs 10 OpenRegister credits per call.
Action
Get Company OwnersRetrieves the shareholders and owners of a German company, with their ownership percentages, nominal shares and register roles.
Action
Get Company UbosRetrieves the Ultimate Beneficial Owners (natural persons who ultimately own or control the company) of a German company, calculated across the full ownership chain. Costs 25 OpenRegister credits per call.
Action
Get Insolvency ProceedingRetrieve the full record of a single German insolvency proceeding, including its status, debtor, administrator, deadlines, distribution figures and complete event history.
Action
Get Person DetailsRetrieve detailed information about a person listed in the German commercial register: name, date of birth, age, city, and their current and past management positions across companies.
Action
Get Person HoldingsRetrieve the company holdings (ownership stakes) associated with a specific person by person id.
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 OpenRegister, 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 OpenRegister when something happens in Google Calendar?
Any of OpenRegister's 13 actions, including Find Company by Name, Find Company by URL, Find Insolvency Proceedings and Find People by Name. Your agent maps the data both ways and tests every scenario before it ships.
Can it also run from OpenRegister to Google Calendar?
OpenRegister has no triggers in the catalog today, so automations start in Google Calendar. If you need the other direction, ask: your agent reads OpenRegister's API documentation and adds it.
Do I have to build a connector for Google Calendar or OpenRegister?
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.
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.