CycleCalcs Astronomy

Install

Pick the AI app you use, then copy the settings.

Passed 2/3 checks · What you ask goes through the maker’s server (www.cyclecalcs.com) · ✓ Commands checked Nov 13, 2026

claude mcp add --transport http --scope user astronomy https://www.cyclecalcs.com/mcp

{
  "mcpServers": {
    "astronomy": {
      "url": "https://www.cyclecalcs.com/mcp"
    }
  }
}

{
  "servers": {
    "astronomy": {
      "type": "http",
      "url": "https://www.cyclecalcs.com/mcp"
    }
  }
}

Which apps can use it

Based on how this server connects and on each app’s own docs, checked Nov 10, 2026.

Connect over the internet in

ClaudeChatGPTGooseLM StudioMsty StudioCherry StudioCursorVS Code + GitHub CopilotVisual StudioWindsurf (Devin Desktop)ZedKiroClineContinueJetBrains AI AssistantClaude CodeCodex CLIGemini CLIOpenCodenodecodeWarpLibreChatOpen WebUIRaycast

All apps, with pros and cons →

What it can do

Tool names and descriptions exactly as the server reported them on Nov 13, 2026. The maker wrote them, not us; we show them as plain text.

• astro_sky_today

  One-call snapshot of the whole sky for a place and moment: moon phase and illumination, which planets are up and worth looking at, the next eclipse, and (with a location) sun times. Reach for this first when the question is broad, like "what is in the sky tonight". For solar-day

• astro_sun

  The complete solar day for one location: sunrise, sunset, solar noon, day length, civil, nautical and astronomical twilight boundaries, and explicit polar day/night status at high latitudes. Location required. For a series, send start and end (step is whole days, e.g. "1d" or "7d

• astro_moon

  The Moon at an instant or as a daily series: phase name and angle, illuminated fraction, distance, apparent size, libration, bright limb, and the next quarter phases. A location adds rise/set and altitude. For a calendar of new and full moons use astro_moon_phases; for the Moon's

• astro_moon_phases

  Every new moon, quarter and full moon in a window (or the next few from a date): each with its exact instant, distance, apparent size, supermoon classification under both competing definitions, traditional full-moon name, and any eclipse falling on it. Use for "when is the next f

• astro_positions

  Exact positions for up to 20 bodies at an instant or over a time grid: right ascension and declination in both J2000 and of-date frames, ecliptic longitude and latitude, distance, and, with a location, altitude and azimuth with refraction stated per field. With a location the pos

• astro_rise_set

  Rise, upper transit, set and lower transit for one body at one location, with an explicit status at extreme latitudes (circumpolar, never rises) instead of missing values. Accepts fixed radec targets. For the Sun specifically, astro_sun returns richer twilight structure; for posi

• astro_eclipses

  Solar and lunar eclipses: the next or previous from a date, or all in a range, with type, magnitude, obscuration, Saros series and global geometry. A solar eclipse also carries a computed hybrid flag and, when central, the duration, path width and Sun altitude at greatest eclipse

• astro_dark_window

  The genuinely dark, moonless observing window for a night: astronomical night intersected with the Moon being down, ranked across up to 62 nights with a trend. The right tool for "when should I stargaze / photograph the Milky Way / observe deep-sky objects". Location required. Fo

• observing_windows

  Is tonight good for observing here, and when? The clear, dark windows of tonight, and of the next nights the hourly cloud forecast covers, for one place: astronomical night with the Moon down (or up, with moon "any"), under the MET Norway cloud forecast. The windows are the ones

• astro_planet_board

  All eight planets in one call for a date and optional location: constellation, magnitude, apparent size, elongation from the Sun, morning or evening sky, retrograde state with the next station, rise/set, and a worth-looking-tonight assessment. The right tool for "which planets ar

• astro_planet_events

  Dated planet events. For Mercury and Venus, the apparition cycle: inferior and superior conjunctions, greatest eastern and western elongations, peak brightness (a Venus-only event: Mercury's brightness peaks behind the Sun where it cannot be seen), and the rare transits across th

• astro_find_place

  Resolve a place name to coordinates, region, country, IANA timezone and a stable place_id, or reverse-look-up the nearest places to a lat/lon. Results are GeoNames data (CC BY 4.0); the response carries the required credit in its attribution field, which must be preserved when re

Basic checksi

We check information anyone can see; we have not read the code. Checks that do not apply are left out of the count. · Checked Nov 15, 2026

• ! Caution

  Maker matches the repo

  The registry lists no source repo, so we cannot match the publisher (cyclecalcs.com) to the code

• … Not checked yet

  Still maintained

  We have not read this repo from GitHub yet

• … Not checked yet

  Has a licence

  We have not read this repo from GitHub yet

• ✓ Pass

  Endpoint responds

  Responded in 339 ms (HTTP 200)

• – Not applicable

  Sign-in with OAuth

  No sign-in needed

• ✓ Pass

  No hidden instructions in tool descriptions

  Read 12 tool descriptions and found no hidden instructions to the AI

What we check → · JSON

User reviews

No reviews yet

Sign in to write a review

Compared with others in Otheri

• More stars than 0% of the other 19895 servers in this category
• Published to the registry more recently than 49% of the other 19895 servers in this category
• Basic checks equal to or better than 45% of the other 19895 servers in this category

Compared with every active server in this category in the registry. Stars count only when the publisher owns the repo.

Similar alternatives

Same category, other makers, commands already checked. Official ones first, then by stars.

Reading a card:↓ Downloads per weeki★ GitHub starsiThree pillars: reviews · checks · usageiUpdated = latest version published to the registryi

World Monitor

Real-time global intelligence on conflict, markets, energy, trade, shipping and cyber. 97 tools.

by koala73·Widely used·★ 90.7K·Updated yesterday

Runs in the cloud✓ service owner · worldmonitor.app

How to connect

openstatus

Manage monitors, status pages, incidents and maintenances in your openstatus workspace.

by openstatusHQ·Widely used·★ 9.3K·Updated 2 months ago

Runs in the cloud✓ service owner · openstatus.dev

How to connect

Oh My Posh Validator

Validate oh-my-posh configurations and segment snippets against the official schema.

by JanDeDobbeleer·Widely used·★ 23.8K Stars for the whole repo·Updated 26 days ago

Runs in the cloud✓ service owner · ohmyposh.dev

How to connect

Strata

MCP server for progressive tool usage at any scale (see https://klavis.ai)

by Klavis-AI·Growing·★ 5.8K·Updated 14 months ago

Runs in the cloudRepo archived✓ klavis.ai

How to connect

Jitsu

Manage Jitsu data pipelines: destinations, streams, connections, functions, live events.

by jitsucom·Widely used·★ 5.1K·Updated 4 months ago

Runs in the cloud✓ service owner · jitsu.com

How to connect

• World Monitor — Runs in the cloud, nothing to install · No key needed
• openstatus — Runs in the cloud, nothing to install · No key needed
• Oh My Posh Validator — Runs in the cloud, nothing to install · No key needed
• Strata — Runs in the cloud, nothing to install · No key needed
• Jitsu — Runs in the cloud, nothing to install · No key needed

README from the maker

No README found in the repo