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Moon Calendar is installed from its publisher's own source and answers where it runs, so this marketplace is not in the path of a single call. There is no address here to send one to, and a panel that pretended otherwise would be showing you an answer we made up. Install it and call it from your own client — the Installation tab has the entry for each one.
What it does
Moon phases, full and new Moon dates, UK moonrise, eclipses, dark skies, tides and Moon sign.
Quickstart
# 1 — add it to Claude Code
claude mcp add --scope user --transport http moon-calendar-mcp https://mooncalendar.co.uk/api/mcp
# 2 — ask your agent for something these tools do
# get_moon, find_moon_events, get_moon_calendar and 5 more
Moon Calendar costs nothing on mcprush: there is no plan to choose here, no cap to set and nothing mcprush can bill you for.
Collected from a public index. Nobody has claimed this account, so nothing here was written by its author — claim it if it is yours.
Where are you running it?
Every route below installs the same thing and ends at the same approval screen. Nothing here runs on your machine and nothing runs on ours: this server answers at its publisher’s own address, and what you install is the connection straight to it.
This is a public server: it answers at its publisher’s own address and this marketplace is not in the path. Claude Code registers it in one command; --scope user makes it available in every project. The transport below is http, as the publisher's own manifest declares it.
claude mcp add --scope user --transport http moon-calendar-mcp https://mooncalendar.co.uk/api/mcpReconnect, or start a new session, and the tools appear in the model’s tool list.
One config entry pointing straight at the publisher’s own address — this marketplace is not in the path, and nothing from this listing executes on your machine.
8 tools, with what each one reads, writes and reaches shown before you agree — the same list on every route above. Read the tool surface.
Tool surface
What the model actually sees. Descriptions are diffed on every release — see version history.
Returns the Moon's phase, percent lit, lunar age, distance from Earth and waxing or waning direction right now, at 12:00 UK time on a date, or at a UK clock time on a date. Also returns whether it is a full Moon, the next full and new Moon, and at a UK place that date's moonrise, highest point and moonset, the Moon's height and compass bearing, and whether it is above the horizon after dark. Times
| Parameter | Type | Required | Notes |
|---|---|---|---|
| date | string | no | 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 t |
| time | string | no | 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 | no | 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. |
Returns the dates and UK times of upcoming full, new, first quarter and last quarter Moons, with each full Moon's traditional name, its distance, and supermoon, blue Moon, micromoon and black Moon flags. Special Moons can be listed on their own.
| Parameter | Type | Required | Notes |
|---|---|---|---|
| phase | string | no | Phase to list: full, new, first-quarter, last-quarter, or any for all four in date order. Any without it. |
| special | string | no | 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. |
| from | string | no | First UK date to include, as YYYY-MM-DD. Without it the list starts right now. |
| to | string | no | 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. |
| count | integer | no | Maximum number of events, from 1 to 24. 6 without it. |
Returns every day of one UK calendar month with its Moon phase and percent lit at 12:00 UK time, plus the exact UK times of that month's new, first quarter, full and last quarter Moons.
| Parameter | Type | Required | Notes |
|---|---|---|---|
| year | integer | no | Calendar year from 1900 to 2100. The current UK year without it. |
| month | integer | no | Calendar month from 1 to 12. The current UK month without it. |
Returns upcoming solar and lunar eclipses in date order with the UK peak time, the kind of eclipse and what the UK sees of it, including London contact times, coverage or totality where the Sun or Moon is above the horizon. With a place, each eclipse also shows that place's start, maximum and end, the share of the Sun covered or the Moon's height.
| Parameter | Type | Required | Notes |
|---|---|---|---|
| from | string | no | First UK date to include, as YYYY-MM-DD. Without it the list starts right now. |
| count | integer | no | Maximum number of eclipses, from 1 to 10. 5 without it. |
| type | string | no | Solar, lunar, or any for both. Any without it. |
| visibleFromUk | boolean | no | True lists only eclipses that at least one UK place can see; false adds eclipses seen elsewhere. True without it. |
| place | string | no | One of 24 UK places. Each eclipse then shows what that place sees, such as London, Edinburgh, Cardiff, Belfast, Leeds or Lerwick. |
Returns the nights of one UK month with a dark-sky window, when the Sun is more than 18° below the horizon and the Moon is down, at one of 24 UK places, with each night's window times, hours and Moon phase. For photography it returns each night's Moon window, when the Moon is at least 5° up while the Sun is more than 6° below the horizon. Times are UK time, GMT or BST.
| Parameter | Type | Required | Notes |
|---|---|---|---|
| place | string | no | One of 24 UK places, such as London, Edinburgh, Cardiff, Belfast, Leeds or Lerwick. London without it. |
| month | string | no | UK calendar month as YYYY-MM, from 1900-01 to 2100-12. The current UK month without it. |
| purpose | string | no | Dark lists nights with a moonless dark-sky window; photo lists nights with a Moon photography window. Dark without it. |
Returns the dates and UK times of spring tides (new and full Moons) and neap tides (first and last quarter Moons) from the Moon's phases, in date order, with the next spring tide and next neap tide first and perigean spring tides flagged. These are tide dates, not times or heights for a port.
| Parameter | Type | Required | Notes |
|---|---|---|---|
| year | integer | no | 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. |
| from | string | no | First UK date to include, as YYYY-MM-DD. Without it the list starts right now, or at the start of the year given. |
| count | integer | no | Maximum number of tide dates, from 1 to 24. 8 without it. |
Returns the Moon's zodiac sign right now, on a UK date or at a UK date and time, tropical or Lahiri sidereal, with the degree into the sign, the next sign change and the website's one-line meaning of the sign. With a date alone it returns every sign the Moon is in that day.
| Parameter | Type | Required | Notes |
|---|---|---|---|
| date | string | no | UK calendar date as YYYY-MM-DD, from 1900 to 2100. Without a date and a time the result is the Moon's sign right now. |
| time | string | no | UK clock time as HH:MM on a 24-hour clock. With a date it gives the exact sign at that time; without a date it is today. |
| zodiac | string | no | Tropical zodiac, which starts at the March equinox, or Lahiri sidereal. Tropical without it. |
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.
| Parameter | Type | Required | Notes |
|---|---|---|---|
| date | string | no | 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. |
- Every tool — any call limit is its publisher’s, not ours
- No card, and mcprush charges nothing for it
- Runs at its publisher’s own address — this marketplace is not in the path
- Nothing to cap, because mcprush bills nothing
What counts against your monthly calls
| Tool | Unit | Calls used | Out of the allowance |
|---|
Nothing here is billable: mcprush charges nothing to install Moon Calendar or to call it, at any volume.
Two independent axes, because powerful and malicious are different questions. The grade is threat only. The capability level is blast radius, and it is never a penalty on the grade — it is priced as one subtract-only term in the score, where you can see it.
| Term | Level | What it prices | Points |
|---|---|---|---|
| capability-exposure | minimal | capability blast radius (minimal) — client exposure if the model is manipulated | −0 |
| coverage-honesty | manifest | inspection depth (manifest) — how much of the target the scan could see | −4 |
What the scan could actually read
A grade is only as meaningful as its coverage, so the scanner publishes its own depth before it publishes its result.
The scan read each tool’s name, description, input schema and annotations exactly as the server listed them the last time it answered us; no code was reviewed. We ask the server again about once a month, and a list that changed is graded again.
The implementation source was not read — this reflects the declared tool metadata only.
Capability — what it could do if the model were manipulated
Tags derived from each tool’s schema and the implementation, not from what the tool calls itself. minimal is the level these add up to.
| Tool | Capability tags | Why the tag was assigned |
|---|---|---|
| get_moon | no tags | |
| find_moon_events | no tags | |
| get_moon_calendar | no tags | |
| list_eclipses | no tags | |
| plan_dark_skies | no tags | |
| get_tides | no tags | |
| get_moon_sign | no tags | |
| check_crescent_visibility | no tags |
Toxic-flow graph
The lethal trifecta, checked as a graph rather than as a checklist: untrusted input, a sensitive source and an external sink have to meet before there is a path worth worrying about.
The public result for this release does not print the flow graph, so there is nothing to show here. That is not the same as "no paths were found": what the scan did read is above, under coverage.
Supply chain and provenance
This is the first scan of this surface here, so there is nothing yet to compare it against.
Every result on this tab comes from one deterministic pass over the published package — offline, rule by rule, and auditable line by line above. Same methodology version, same bytes, same score.
Release history
This is an address its publisher runs: which release it serves is theirs to choose, so there is nothing here to pin. The history below is for reading; the current release on file is 1.1.0.
No release note was published with this version.
One review per account, from a signed-in account that does not publish this listing. Nothing else is asked — you can say what you think before you install it. Publishers can reply once per review, and a review can be edited or deleted by whoever wrote it.
Any signed-in account that does not publish Moon Calendar can review it, once — before installing it or after. A review from an account that has installed it is marked as one.
Nobody has reviewed this listing. The rating on the card is the mean of the reviews written here and nothing else, so there is no rating until somebody writes the first — which takes a signed-in account that does not publish it, and nothing else.