--- title: "Get Event" method: GET path: "/v0/inboxes/{inbox_id}/calendar/events/{event_id}" tags: ["inboxes > calendar"] --- # Get Event `GET /v0/inboxes/{inbox_id}/calendar/events/{event_id}` ## Request - Base URL: `https://api.agentmail.to` - URL: `https://api.agentmail.to/v0/inboxes/{inbox_id}/calendar/events/{event_id}` - Auth: HTTP bearer Gets an event by its UUID, or one date of a recurring event by its dated ID (`_`). A dated ID returns the date as it currently stands, including any edit to it, with `kind: instance`. The response's `etag` (also the `ETag` header) is the value to send in `If-Match` to make an update, delete or response to this event or date conditional. Treat it as opaque. Reads can trail a change made moments earlier by a few seconds; pass `consistency=primary` to read the latest state of an event or a date. A date that has already started or ended reads back as it ran, even if a later change to the series no longer produces it. Requires the `calendar_event_read` permission. Calendar is available in US production (`api.agentmail.to`) but not yet in EU production (`api.agentmail.eu`), which returns `403`. ## Path parameters - `inbox_id` string, required: The ID of the inbox. - `event_id` string, required: ID of a calendar event. A one-off or recurring event is addressed by its UUID. One date of a recurring event is addressed by a dated ID, `_`: `_t20261015T090000` for a timed date (the original wall-clock start in the event's time zone) or `_d20261015` for an all-day date. Dated IDs are stable: moving a date keeps its original ID. ## Query parameters - `consistency` 'eventual' | 'primary': Read consistency. `eventual` (default) reads from the region that serves your request and may lag a write made moments earlier by up to a few seconds. `primary` reads from the primary region and always reflects every completed write. ## Response `200` Response with status 200 - CalendarCalendarEvent: A calendar event. The same shape is used by every response, list item and webhook. `kind` says whether it is a one-off event, the definition of a recurring series, or one date of a series. - `event_id` string, required: ID of a calendar event. A one-off or recurring event is addressed by its UUID. One date of a recurring event is addressed by a dated ID, `_`: `_t20261015T090000` for a timed date (the original wall-clock start in the event's time zone) or `_d20261015` for an all-day date. Dated IDs are stable: moving a date keeps its original ID. - `kind` 'single' | 'series' | 'instance', required: What the event object represents. - `single`: a one-off event, addressed by its UUID. - `series`: the definition of a recurring event, addressed by its UUID. It carries `recurrence`; `start` and `end` describe its first date. - `instance`: one date of a recurring event, addressed by its dated ID. It carries `series_id`, `original_start` and `is_exception`. - `series_id` string: For `instance` events, the UUID of the series this date belongs to. - `original_start` string: A local wall-clock time without an offset, interpreted in the event's `timezone`. Timed events use `YYYY-MM-DDTHH:mm:ss` (for example `2026-10-15T09:00:00`). All-day events use `YYYY-MM-DD`. Years must be between 1900 and 9999. - `original_start_at` string, date-time: For `instance` events, `original_start` as a UTC instant. - `is_exception` boolean: For `instance` events, `true` when this date was edited or moved, individually or by a `mode=future` change. - `title` string, required: Title of the event. - `description` string: Description of the event. Omitted from agenda and instance list items. - `location` string: Location of the event. - `metadata` unknown - `status` 'confirmed' | 'tentative' | 'cancelled', required: Status of the event. A `cancelled` event or date stays readable but sends no `calendar.event.starting` or `calendar.event.ending` webhooks (cancelling a date that is already running still sends its `calendar.event.ending`). A date cancelled by deleting its dated ID is removed from the series instead, so reading it can return `404` or `410`. - `all_day` boolean, required: Whether this is an all-day event. - `start` string, required: A local wall-clock time without an offset, interpreted in the event's `timezone`. Timed events use `YYYY-MM-DDTHH:mm:ss` (for example `2026-10-15T09:00:00`). All-day events use `YYYY-MM-DD`. Years must be between 1900 and 9999. - `end` string, required: A local wall-clock time without an offset, interpreted in the event's `timezone`. Timed events use `YYYY-MM-DDTHH:mm:ss` (for example `2026-10-15T09:00:00`). All-day events use `YYYY-MM-DD`. Years must be between 1900 and 9999. - `timezone` string, required: IANA time zone name, for example `America/New_York`, `Europe/London` or `UTC`. Requests accept any capitalization and IANA aliases such as `US/Eastern`. The calendar stores and returns the canonical name, which for some zones is an older spelling: `Asia/Kolkata` is returned as `Asia/Calcutta`. Abbreviations such as `PST` and Windows names such as `Pacific Standard Time` are rejected. - `duration_mode` 'nominal' | 'exact', required: How the event's length is kept when a date crosses a daylight-saving change. - `exact`: the event lasts the same elapsed time. Default for one-off timed events. - `nominal`: the event keeps its wall-clock end time (a 09:00 to 10:00 meeting stays 09:00 to 10:00 local time). Default for recurring timed events. All-day events are always `nominal`. - `duration_value` integer, required: Length of the event, in milliseconds for timed events and in days for all-day events. - `start_at` string, date-time, required: Start as a UTC instant. This is when `calendar.event.starting` is due. - `end_at` string, date-time, required: End as a UTC instant. This is when `calendar.event.ending` is due. - `recurrence` CalendarRecurrence: The recurrence of a series, as stored. - `rule` string, required: Normalized RRULE body, without the `RRULE:` prefix. - `exdates` CalendarWallTime[] - `rdates` CalendarRecurrenceDate[] - union: A wall-clock date or date-time, or (timed events only) a period. - string: A local wall-clock time without an offset, interpreted in the event's `timezone`. Timed events use `YYYY-MM-DDTHH:mm:ss` (for example `2026-10-15T09:00:00`). All-day events use `YYYY-MM-DD`. Years must be between 1900 and 9999. - CalendarRecurrencePeriod: An extra date (RDATE) given as a period. Specify exactly one of `end` or `duration`. - `start` string, required: A local wall-clock time without an offset, interpreted in the event's `timezone`. Timed events use `YYYY-MM-DDTHH:mm:ss` (for example `2026-10-15T09:00:00`). All-day events use `YYYY-MM-DD`. Years must be between 1900 and 9999. - `end` string: A local wall-clock time without an offset, interpreted in the event's `timezone`. Timed events use `YYYY-MM-DDTHH:mm:ss` (for example `2026-10-15T09:00:00`). All-day events use `YYYY-MM-DD`. Years must be between 1900 and 9999. - `duration` string: ISO 8601 duration, for example `PT30M`. - `truncate_before` string: A local wall-clock time without an offset, interpreted in the event's `timezone`. Timed events use `YYYY-MM-DDTHH:mm:ss` (for example `2026-10-15T09:00:00`). All-day events use `YYYY-MM-DD`. Years must be between 1900 and 9999. - `attendees` CalendarAttendee[]: Attendees of the event. Omitted from agenda and instance list items; `attendee_count` is always present. - `email` string, required: Email address of the attendee. Stored in lowercase. Must be unique within the event. - `name` string: Display name of the attendee. At most 256 characters. - `status` 'needs_action' | 'accepted' | 'declined' | 'tentative': The attendee's response to the invitation. - `role` 'required' | 'optional': Whether the attendee's presence is required. - `comment` string: Comment the attendee sent with their response. At most 4,096 UTF-8 bytes; on create or update, a longer comment is dropped rather than rejected. - `responded_at` string, date-time: Time at which the attendee last responded. - `attendee_count` integer, required: Number of attendees. - `response_status` 'needs_action' | 'accepted' | 'declined' | 'tentative': The attendee's response to the invitation. - `uid` string, required: iCalendar UID of the event. Invitations about this event carry the same UID. - `sequence` integer, required: iCalendar SEQUENCE number. It increases when a change to a one-off or series event affects what attendees see (time, status, title, description, location, recurrence or attendees). A change to a dated event increases it only when the change is sent with `send_invites`. - `source` 'api' | 'email', required: Where the event came from. `api` events were created through this API and the inbox is their organizer. `email` events were created from a calendar invitation (iMIP) received by the inbox; their organizer is the sender of the invitation. - `organizer_email` string: Email address of the organizer. For `api` events, the inbox. - `origin_message_id` string: For `email` events, the ID of the message whose invitation last created or updated the event. - `resource_revision` integer: Revision of the resource. It increases on every change. The resource's `etag` is `"rv-"`. - `created_at` string, date-time, required: Time at which the event (or, for a date, the definition governing it) was created. - `updated_at` string, date-time, required: Time at which the event (or, for a date, the definition governing it) was last updated. - `etag` string: The event's or date's current version, also sent as the `ETag` response header. Send it in `If-Match` to make an update, delete or response conditional. Present on Get, Create, Update, Delete and Respond responses; list items and webhooks omit it. Treat it as opaque: a dated event's `etag` (`"occ-..."`) is not derived from `resource_revision`. ## Other responses - `400`: Error response with status 400 - `403`: Calendar isn't available in this region (EU production), or the API key lacks the required calendar permission. - `404`: Error response with status 404 - `410`: The event's date is outside the retained history window and can no longer be read or changed. ## Changes - **2026-10-16** `3f5c7830c952`: 1 info - endpoint added [Operation history](https://skmtc.dev/agentmail-to/apis/api/changes/v0/inboxes/:inbox_id/calendar/events/:event_id/get.md) --- [API](https://skmtc.dev/agentmail-to/apis/api.md) - [All operations](https://skmtc.dev/agentmail-to/apis/api/llms.txt) - [OpenAPI document](https://skmtc.dev/agentmail-to/apis/api/revisions/a9792efe7bdf?raw)