Moon Calendar

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uk.co.mooncalendar/mooncalendar-co-ukv1.1.0 Domain verified

Moon phases, full and new Moon dates, UK moonrise, eclipses, dark skies, tides and Moon sign.

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{
  "_meta": {
    "io.modelcontextprotocol.registry/official": {
      "status": "active",
      "isLatest": true,
      "updatedAt": "2026-11-07T03:26:54.435868Z",
      "publishedAt": "2026-11-07T03:26:54.435868Z",
      "statusChangedAt": "2026-11-07T03:26:54.435868Z"
    }
  },
  "server": {
    "name": "uk.co.mooncalendar/mooncalendar-co-uk",
    "icons": [
      {
        "src": "https://mooncalendar.co.uk/mcp/icons/icon-512.png",
        "sizes": [
          "512x512"
        ],
        "mimeType": "image/png"
      },
      {
        "src": "https://mooncalendar.co.uk/mcp/icons/icon-256.png",
        "sizes": [
          "256x256"
        ],
        "mimeType": "image/png"
      },
      {
        "src": "https://mooncalendar.co.uk/mcp/icons/icon-128.png",
        "sizes": [
          "128x128"
        ],
        "mimeType": "image/png"
      }
    ],
    "title": "Moon Calendar",
    "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
    "remotes": [
      {
        "url": "https://mooncalendar.co.uk/api/mcp",
        "type": "streamable-http"
      }
    ],
    "version": "1.1.0",
    "repository": {
      "url": "https://github.com/pyxlino/mooncalendar-mcp",
      "source": "github"
    },
    "websiteUrl": "https://mooncalendar.co.uk",
    "description": "Moon phases, full and new Moon dates, UK moonrise, eclipses, dark skies, tides and Moon sign."
  }
}

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Call this server's tools from your browser. Nothing to install.

https://mooncalendar.co.uk/api/mcp

Requests go through mcptry because browsers can't call most MCP servers directly. Header values are sent to the server for that request only and are never stored or logged.

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check_crescent_visibility Read-only

Returns the first three evenings after a new Moon with a crescent sighting verdict (likely, difficult or not visible) for each of 24 UK places, with sunset, moonset, Moon age, height and best viewing time. It covers the latest new Moon until its third evening is over, then the next one.

datestring

UK calendar date as YYYY-MM-DD, from 1900 to 2100, near a new Moon. The result is the window the website would show on that date. The current window without it.

Argument	Type	Description
to	string	Last UK date to include, as YYYY-MM-DD. Without it the list covers about two years from the start, or up to 2100 for a special Moon.
from	string	First UK date to include, as YYYY-MM-DD. Without it the list starts right now.
count	integer	Maximum number of events, from 1 to 24. 6 without it.
phase	string	Phase to list: full, new, first-quarter, last-quarter, or any for all four in date order. Any without it.
special	string	Lists only supermoons, blue Moons, micromoons (full Moons) or black Moons (the second new Moon of a month), so it fixes the phase. None, ordinary phases, without it.

Argument	Type	Description
year	integer	Calendar year from 1900 to 2100. The current UK year without it.
month	integer	Calendar month from 1 to 12. The current UK month without it.

Argument	Type	Description
from	string	First UK date to include, as YYYY-MM-DD. Without it the list starts right now, or at the start of the year given.
year	integer	Calendar year from 1900 to 2100 whose tide dates are listed. Without it the list starts at from, or right now, and runs on into the next year.
count	integer	Maximum number of tide dates, from 1 to 24. 8 without it.

Argument	Type	Description
from	string	First UK date to include, as YYYY-MM-DD. Without it the list starts right now.
type	string	Solar, lunar, or any for both. Any without it.
count	integer	Maximum number of eclipses, from 1 to 10. 5 without it.
place	string	One of 24 UK places. Each eclipse then shows what that place sees, such as London, Edinburgh, Cardiff, Belfast, Leeds or Lerwick.
visibleFromUk	boolean	True lists only eclipses that at least one UK place can see; false adds eclipses seen elsewhere. True without it.

Argument	Type	Description
month	string	UK calendar month as YYYY-MM, from 1900-01 to 2100-12. The current UK month without it.
place	string	One of 24 UK places, such as London, Edinburgh, Cardiff, Belfast, Leeds or Lerwick. London without it.
purpose	string	Dark lists nights with a moonless dark-sky window; photo lists nights with a Moon photography window. Dark without it.

Moon Calendar

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check_crescent_visibility Read-only

Moon Calendar

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check_crescent_visibility Read-only

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Argument	Type	Description
date	string	UK calendar date as YYYY-MM-DD, from 1900 to 2100. Without it and without a time, or with today's date alone, the result describes the Moon right now; any other date alone gives the Moon at 12:00 UK time.
time	string	UK clock time as HH:MM on a 24-hour clock. The result describes the Moon at that time on the date, or on today's date without one.
place	string	One of 24 UK places for moonrise, highest point, moonset, height and visibility, such as London, Edinburgh, Cardiff, Belfast, Leeds or Lerwick. London without it.