# Yandex Calendar: Hermes Agent plugin

> List, create, update, RSVP to, move and delete Yandex Calendar events over CalDAV, with attendees, busy status and several calendars.

Canonical: https://hermeswatcher.com/plugins/yandex_calendar  
Tier: Community  
Official page (Nous Research): https://hermes-agent.nousresearch.com/docs/plugins/yandex_calendar  
Last updated in catalog: 2026-10-20

List, create, update, RSVP to, move and delete Yandex Calendar events over CalDAV, with attendees, busy status and several calendars.

## Good to know before installing

Sends every request to caldav.yandex.ru, or to the HTTPS URL in YANDEX_CALENDAR_BASE_URL if you set one, with your YANDEX_CALENDAR_LOGIN and YANDEX_CALENDAR_APP_PASSWORD read through Hermes; all seven tools, delete included, are offered unless YANDEX_CALENDAR_ACTIONS narrows them; the tools act as your Yandex account, so adding attendees makes Yandex email each of them an invitation from you, and changing, answering, moving or deleting a meeting may notify the people on it; delete removes the event from the server and the plugin keeps no copy; event text written by other people, such as whoever invites you, reaches the agent as tool output; no other endpoint, no telemetry, no file or shell access, no background process. Independent community plugin, not affiliated with Yandex.

From the plugin's catalog listing.

## How to install

1. Install it. Hermes asks for any API keys it needs (this one needs `YANDEX_CALENDAR_LOGIN`, `YANDEX_CALENDAR_APP_PASSWORD`), then asks whether to turn it on.

```bash
hermes plugins install yandex_calendar
```

2. Said no? Turn it on later:

```bash
hermes plugins enable yandex_calendar
```

3. Restart Hermes so it loads the plugin.

Some plugins also need a sign-in or settings: see the official page. Memory plugins ask whether to become your memory provider instead. Steps follow the official plugins guide: https://hermes-agent.nousresearch.com/docs/user-guide/features/plugins

## Facts

- Category: Languages & regions, Web, research & browsing
- Maintained by: akinfold (Community)
- Needs: `YANDEX_CALENDAR_LOGIN`, `YANDEX_CALENDAR_APP_PASSWORD` (API keys)
- Adds tools: `yandex_calendar_list_calendars`, `yandex_calendar_list_events`, `yandex_calendar_create_event`, `yandex_calendar_update_event`, `yandex_calendar_respond_event`, `yandex_calendar_move_event`, `yandex_calendar_delete_event`
- Requires Hermes: `>=0.21.5`
- Version: 0.6.4
- In the catalog since: 2026-10-20

## Links

- [Full setup and settings (official page)](https://hermes-agent.nousresearch.com/docs/plugins/yandex_calendar)
- [Source code](https://github.com/akinfold/hermes-yandex-calendar#readme)
- [All plugins](https://hermeswatcher.com/plugins.md)

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