Astro Seeing
Claude connectorCommunityStargazing forecasts for any location: cloud cover compared across six weather sources, astronomical seeing, light pollution, ISS passes an…
Astro Seeing helps amateur astronomers and astrophotographers decide whether tonight is worth setting up for, and what their equipment will show.
Ask Claude about the sky at any place and it can use eight read-only tools:
- Weather forecast: current conditions and hourly forecasts from up to six sources (Open-Meteo, OpenWeatherMap, WeatherAPI, Tomorrow.io, AccuWeather, Meteosource), with a consensus and the hours where the sources disagree.
- 7-night outlook: cloud, humidity, wind, temperature, rain chance and moon phase for each night of the week.
- Seeing forecast: astronomical seeing, transparency and atmospheric stability from 7Timer.
- Light pollution: an estimated Bortle class, sky brightness and limiting magnitude.
- ISS passes: upcoming visible passes with times, directions and brightness.
- Location search: turns a place name or postcode into coordinates.
- Sampling analysis: whether a telescope and camera are over- or under-sampled for the seeing.
- Field of view: magnification, true field and exit pupil for an eyepiece, or pixel scale and sensor field for a camera.
No account or API key is needed, and nothing is kept beyond short-lived caches. Forecasts can be wrong; the tools report where sources disagree rather than hide it. The same data powers the free Astro Seeing web app and iOS and Android apps.
- Tools
- 8
exposed by this connector
Movement
From our daily snapshots over the last 30 days.
Rank by popularity
Rank by trending score
Popularity score
Trending score
In its categories
How this connector compares with others in the same category. Positions are counted within the category, not across the whole directory.
Data analytics1,606th of 2,740 by popularity · not ranked by trending score
| # | Connector | Popularity | Trending | 7d |
|---|---|---|---|---|
| 1604 | 4,700 | — | 300places down | |
| 1605 | 4,700 | — | 300places down | |
| 1606 | 4,700 | — | 712places up | |
| 1607 | 4,700 | 12,813 #800 | 300places down | |
| 1608 | 4,700 | — | 300places down |
This connector isn’t ranked by trending score, so the category’s top connectors are shown instead.
| # | Connector | Trending | Popularity | 7d |
|---|---|---|---|---|
| 1 | 29,445,468 | 12,305 #156 | — | |
| 2 |  Netzero | 1,983,480 | 8,531 #622 | 3places up |
| 3 | 507,188 | 7,845 #770 | — | |
| 4 |  Statz | 483,976 | 7,129 #943 | 71places up |
| 5 | 483,162 | 7,827 #778 | 563places up |
Other307th of 582 by popularity · not ranked by trending score
| # | Connector | Popularity | Trending | 7d |
|---|---|---|---|---|
| 305 | 4,755 | — | 357places down | |
| 306 | 4,755 | — | 357places down | |
| 307 | 4,700 | — | 712places up | |
| 308 | 4,700 | 25,359 #56 | 6places down | |
| 309 |  Routing24 | 4,700 | — | 205places down |
This connector isn’t ranked by trending score, so the category’s top connectors are shown instead.
| # | Connector | Trending | Popularity | 7d |
|---|---|---|---|---|
| 1 | 29,445,468 | 12,305 #28 | — | |
| 2 | 6,049,367 | 13,629 #15 | 12places up | |
| 3 | Netzero | 1,983,480 | 8,531 #110 | 3places up |
| 4 |  Sketchy Medical | 1,410,305 | 9,226 #87 | — |
| 5 |  Tomorrow.io Weather MCP App | 617,566 | 9,963 #69 | — |
Tools
- analyze_sampling
- calculate_fov
- get_iss_passes
- get_light_pollution
- get_seeing_forecast
- get_weather_forecast
- get_weekly_outlook
- search_location
- Categories
- Made by
- Celestial Oxfordshire · Website
- Sign-in
- Not required
- Connector URL
- https://app.astroseeing.com/mcp
- Transport
- Streamable HTTP
- Works with
- Claude, Claude API, Claude Code, Claude Desktop
- Added
- October 12, 2026
- More info
- Sponsorship
- Promote this connector