# Moon Calendar MCP app

[Moon Calendar](https://mooncalendar.co.uk) gives the Moon in UK time (GMT or BST), right in the chat: today's phase and moonrise at UK places, full and new Moon dates, a month calendar, eclipses seen from the UK, dark-sky nights, spring and neap tide dates, the Moon's sign and new crescent sightings. It works in ChatGPT, Claude and any client that supports remote MCP servers.

- Website: https://mooncalendar.co.uk
- App guide: https://mooncalendar.co.uk/app
- Support: https://mooncalendar.co.uk/about
- Privacy: https://mooncalendar.co.uk/privacy · Terms: https://mooncalendar.co.uk/terms

## Connect

The server is hosted by Moon Calendar. No sign-in or API key is needed.

```json
{ "mcpServers": { "mooncalendar": { "url": "https://mooncalendar.co.uk/api/mcp" } } }
```

## Tools (all read-only)

| Tool | What it does |
|---|---|
| `get_moon` | The Moon now or on a UK date and time: phase, percent lit, age, distance, next full and new Moon, and moonrise, highest point and moonset at a UK place |
| `find_moon_events` | Upcoming full, new and quarter Moons in UK time, with full Moon names, supermoons, blue, black and micro Moons |
| `get_moon_calendar` | One month day by day with its phase and the exact UK times of its main phases |
| `list_eclipses` | Upcoming solar and lunar eclipses with what the UK sees and local times at a UK place |
| `plan_dark_skies` | Dark-sky nights in a month at one of 24 UK places, or Moon photography windows |
| `get_tides` | Spring and neap tide dates from the Moon's phases |
| `get_moon_sign` | The Moon's zodiac sign now or at a birth date and time, tropical or sidereal |
| `check_crescent_visibility` | The new crescent outlook for UK places on the first evenings after a new Moon |

## Try asking

- "When is the next full Moon in the UK, and is it a supermoon?"
- "What time does the Moon rise in Edinburgh tonight?"
- "Which nights next month are darkest for stargazing in Manchester?"

## Report an issue

Open an issue in this repository or use the contact details on the website's About page.

## This repository

It holds only the registry descriptor (`server.json`), icons and this README, under the MIT licence. The website, its data and the Moon Calendar brand are not relicensed by it.