Create an event by defining each field.

Move an event from one calendar to another calendar.

Finds events in your calendar. Returns up to 25 matching events.

Get comprehensive list of calendars accessible to the user with their properties and access levels. Returns up to 250 matching calendars.

Finds or creates events.

Work with numeric data to do math operations, reformat currencies, and more (with line-item support).

Various utilities like "choose value from list" or "look up in table" (with line-item support).

Adds a phone number to your unsubscribe (opt-out) list.

Creates a new contact in your Mobile Message address book.

Deletes a contact from your Mobile Message address book.

Removes a contact from a contact list.

Renames an existing contact list.

Sends a templated SMS to all contacts in a contact list.

Finds a contact by phone number.

Create an event from a piece of text. Google parses the text for date, time, and description info.

Updates an event. Only filled fields are updated.

Finds busy time periods in your calendar for a specific timeframe.

Retrieve calendar properties including timezone, access permissions, default settings, and metadata.

Work with dates and times to change formatting or add/subtract time (with line-item support).

Work with text data to find & replace, capitalize, remove HTML, and more (with line-item support).

Adds a contact to a contact list.

Cancels a scheduled message and refunds the credits.

Creates a new contact list.

Deletes a contact list (does not delete the contacts themselves).

Removes a phone number from your unsubscribe (opt-out) list.

Sends an SMS message

Updates an existing contact by contact ID.

Finds a sent or scheduled message by message ID or custom reference.