Perigee

What you can do with it

We have not written a plain-language summary for this one yet. Below are the facts we read from the registry.

• Connection: Computer or cloud
• Transport: stdio, Streamable HTTP
• Category: Design, images & audio

Install

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

You need

• Runs in the cloudNothing to install; it connects over the internet
• npmNode.js installed (for the npx command)

Which app do you use?

https://perigee-mcp.perigeeinfo.workers.dev/mcp

{
  "mcpServers": {
    "perigee": {
      "command": "npx",
      "args": [
        "-y",
        "perigee-mcp"
      ],
      "env": {
        "PERIGEE_SITE": "your-value",
        "PERIGEE_MCP_CACHE": "your-value"
      }
    }
  }
}

claude mcp add --transport http perigee https://perigee-mcp.perigeeinfo.workers.dev/mcp

claude mcp add perigee --env PERIGEE_SITE=your-value --env PERIGEE_MCP_CACHE=your-value -- npx -y perigee-mcp

{
  "mcpServers": {
    "perigee": {
      "url": "https://perigee-mcp.perigeeinfo.workers.dev/mcp"
    }
  }
}

{
  "mcpServers": {
    "perigee": {
      "command": "npx",
      "args": [
        "-y",
        "perigee-mcp"
      ],
      "env": {
        "PERIGEE_SITE": "your-value",
        "PERIGEE_MCP_CACHE": "your-value"
      }
    }
  }
}

{
  "servers": {
    "perigee": {
      "type": "http",
      "url": "https://perigee-mcp.perigeeinfo.workers.dev/mcp"
    }
  }
}

{
  "servers": {
    "perigee": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "perigee-mcp"
      ],
      "env": {
        "PERIGEE_SITE": "your-value",
        "PERIGEE_MCP_CACHE": "your-value"
      }
    }
  }
}

https://perigee-mcp.perigeeinfo.workers.dev/mcp

Your choice stays on this device in a cookie; no account needed.

Values you fill in

• PERIGEE_SITE env
  Base URL of the Perigee site to query (default: https://perigee.info/)
• PERIGEE_MCP_CACHE env
  Directory for the on-disk cache (default: OS user cache directory)

These settings are generated from the maker’s registry entry. If the README says otherwise, follow the README.

What it can do

Tool names and descriptions exactly as the server reported them on Nov 8, 2026. The maker wrote them, not us; we show them as plain text.

• perigee_find

  Looks up objects by name or identifier (English or French, accents optional): planets, moons, missions beyond Earth orbit, featured science satellites, any active Earth satellite (by name, NORAD or COSPAR id), landing and launch sites, named stars. Returns ids for the other tools

• perigee_object

  Facts about an object: name, agency, country, launch date, status, mission goals and notes, identifiers (NORAD, COSPAR, Horizons), official website, sources and verification date, a catalogue image with credit and licence, and links to its view in Perigee. include_image also retu

• perigee_state

  Position (km, ICRF/J2000 equatorial axes) and velocity (km/s) of an object at a date, relative to a centre (default: the body it orbits or stands on), with distance, altitude above the centre, speed, light time, whether it is in sunlight, and provenance. Around the Earth, the Moo

• perigee_orbit

  Orbit of an object: perigee and apogee altitudes (periapsis/apoapsis), period, inclination, eccentricity, semi-major axis. Earth satellites: the mean elements of their published element set, with the orbit regime (LEO, MEO, GEO, HEO); other objects: instantaneous two-body element

• perigee_passes

  When an Earth satellite (ISS = 25544, Tiangong = 48274, Hubble = 20580, or any NORAD number) passes over a place: rise, highest point and set times with direction (azimuth, compass point) and elevation, and whether it can be seen with the naked eye (sunlit satellite, dark sky) an

• perigee_sky

  What is in the sky from a place at a date (default: now): day, twilight or night; the Sun with its next rise, set and twilights; the Moon with its phase, illuminated share, rise and set; each planet with its altitude, direction, brightness (magnitude), constellation and whether i

• perigee_events

  Events over a period (default: the next 30 days, at most 31): Moon phases (super and micro full Moons), lunar perigee and apogee, lunar and solar eclipses (contact times; with a place: how they look from there, with the duration of totality or annularity and the altitude of the S

• perigee_tonight

  What there is to see tonight from a place (the coming night, or the current one): the night's start and end, the Moon (phase, illuminated share, rise and set), the planets visible to the naked eye, the visible passes of the ISS, Tiangong and Hubble, the close pairings of the Moon

• perigee_sky_conjunctions

  Apparent close pairings seen from a place over a period (default 7 days, at most 7): the Moon and the planets with each other and with the bright stars near the ecliptic (Regulus, Spica, Antares, Aldebaran, Pollux…), at their closest, with where to look and whether the pair is vi

• perigee_shadow

  Whether an object is in sunlight, in the penumbra or in the umbra of the body it orbits (Earth satellites: the Earth's shadow; lunar and Martian orbiters: the Moon's or Mars'), and when it next enters and leaves the shadow (default: over two orbits, at most 12 hours). Explains wh

• perigee_ground_track

  The path on the ground below an Earth satellite over one or two orbits: a list of points (time, latitude, longitude, height) and a GeoJSON MultiLineString split at the antimeridian, ready for a map. Up to 360 points.

• perigee_close_approach

  The closest distance between two objects in space over a period (default 1 day, at most 1): when, how close (timed to a fraction of a second) and, for two Earth satellites, how fast they pass each other. For education only: public orbits are not precise enough for collision avoid

• perigee_stats

  Counts of the active satellites: total, by owner (country or organisation, e.g. US, PRC, CIS, ESA), by operator (SpaceX, OneWeb, Amazon Kuiper…), by CelesTrak group (constellations, navigation, weather…), by orbit regime (LEO, MEO, GEO, HEO), object type, launch year, recent laun

• perigee_distance

  Centre-to-centre distance between two objects at a date (km and astronomical units) and the light travel time, with the provenance of both positions. Example: from "earth" to "mars".

• perigee_distance_series

  Distances between two objects sampled evenly over a period (for a table or a chart), with the closest and farthest samples. The step limits their precision: use more steps for a precise closest approach.

• perigee_view

  Link to Perigee showing an object (optionally at a date, paused or accelerated, followed), and an iframe snippet for a lesson page: the live 3D view without bars or panels. The embedding page can then drive the view and take PNG snapshots with postMessage (protocol perigee:v1, do

• perigee_describe_view

  Turns a Perigee link or embed URL (from perigee_view or a shared link) into words: a one-sentence alternative text for the image or iframe, and a description for lesson notes (which view, the selected object, where it is and how reliable its position is, the date and speed of tim

• perigee_define

  Student-level definitions (secondary school) of the terms shown in Perigee: NORAD number, COSPAR id, apogee and perigee, inclination, orbital period, element epoch, ephemeris window, phase… Without a term, lists them all.

• perigee_about

  What every answer rests on: data sources and when they were fetched, the models and their typical accuracy, catalogue sizes, frame, attribution and the educational-use disclaimer.

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 8, 2026

• ✓ Pass

  Maker matches the repo

  The registry name was verified with the GitHub account dlamarre-dev, which owns the repo

• … 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 246 ms (HTTP 200)

• – Not applicable

  Sign-in with OAuth

  No sign-in needed

• ✓ Pass

  No hidden instructions in tool descriptions

  Read 19 tool descriptions and found no hidden instructions to the AI

Compared with others in Design, images & audioi

• More stars than 0% of the other 2759 servers in this category
• Published to the registry more recently than 100% of the other 2759 servers in this category
• Basic checks equal to or better than 100% of the other 2759 servers in this category

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

Alternatives

Servers in the same category from other makers, sorted by stars.

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

README from the maker

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