List the account's calendars with their IDs (URLs).

Reminders lists are included with read_only=true; they cannot hold events.

List events in a date range, sorted by start.

Each entry has id/url, summary, description, location, start, end (ISO 8601 with offset, or a date for all_day events), start_timezone, recurring, rrule, attendees and calendar. Recurring series are expanded into one entry per occurrence; all occurrences share the series id, so update/delete apply to the whole series.

Search events by text within an optional date range (same output as calendar_list_events).

Create a calendar event (optionally recurring, with alerts) and email iTIP invitations to attendees.

Returns the created event including its id/url. If some invitations could not be sent, invitations_failed lists those addresses.

Update fields of an existing event. Only provided fields change; recurring series are updated as a whole.

Delete an event (the whole series for recurring events) and email cancellations to its attendees.

List contacts from the default address book: id/url, name, phones, emails, addresses, organization, title, notes.

Find contacts by name, organization, email or phone number.

Get one contact with all fields.

Create a contact in the default address book and return it with its id/url.

Update a contact. Only provided fields change; list fields replace the existing values (entries that keep the same number/address keep their labels such as home/work).

Delete a contact permanently.

List mail folders with their IMAP flags (e.g. \Sent, \Trash).

List the newest messages in a folder: id, subject, from, to, date, flags, unread, has_attachments and body_text.

Server-side IMAP search. All provided filters are combined with AND; at least one is required.

Returns the same fields as email_list_messages, newest first.

Get one message: headers (from, to, cc, reply_to, date, Message-ID), flags, body_text and the attachments list.

Attachments are described by index, name, mime_type and size; download one with email_get_attachment.

Fetch several messages in one round trip (same fields as email_get_message). Missing IDs yield an error entry.

Download an email attachment.

With save_dir the file is written to disk and its path returned; otherwise the file is returned inline (images as image content, other types as an embedded resource).

Send an email from the account (SMTP) and store a copy in the Sent folder.

Save a message to the Drafts folder without sending it, so the user can review and send it from any mail client.

Move a message to another folder. The message gets a new UID in the destination folder.

Move a message to Trash, or delete it permanently.

Mark a message as read (set \Seen).

Mark a message as unread (clear \Seen).