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Stellarhound — stargazing forecasts, dark-sky sites & aurora

com.stellarhound/stellarhound-mcp · v0.1.0

Measured by MCP Station

Last check	Reachable
Checked at	—
Check success 7 / 30 days	—
First-try success 30 days	—
Median response	—
Lookups 30 days	—
Authentication	No auth
MCP version	2025-06-18
Rank score	—
Declared risk	Read-only (all tools declare readOnlyHint)
Capabilities declared	experimental, prompts, resources, tools
Tool definitions	5 tools · with description 100% · input schema is an object 100% · read/destructive hints 100%

Description written by the publisher, not verified

Live stargazing forecasts: per-night sky scores, dark-sky sites, aurora & light pollution anywhere.

Connect

streamable-http · https://stellarhound.com/mcp

claude mcp add --transport http stellarhound-mcp https://stellarhound.com/mcp

{
  "mcpServers": {
    "stellarhound-mcp": {
      "url": "https://stellarhound.com/mcp"
    }
  }
}

Tools as reported by the server

get_stargazing_conditions
Score the next nights for stargazing at a location (0-100 per night). Use for "when should I stargaze this week near X", "is Saturday any good for the Milky Way", trip planning. Each night combines the three-layer cloud-cover forecast, moon illumination and up-fraction, and the astronomical-darkness
get_tonight_agenda
Get tonight's stargazing plan for a location: score, darkness window, and what to observe. Use when the user asks "what can I see tonight" / "is tonight worth going out". Returns tonight's sky score and darkness window plus a ranked agenda of observing targets appropriate for the location's sky dark
find_dark_sky_sites
Recommend dark-sky sites near a location, ranked by whether the drive is worth it. Use for "where should I drive to stargaze near X". Sites are grouped by drivability (how far), then ranked by a drive-worth score combining the best weather window over the next 7 nights, how much darker the site is t
get_aurora_forecast
Get the aurora (northern/southern lights) outlook for a location. Use for "any chance of aurora tonight near X". Combines the Kp-index forecast with the location's geomagnetic latitude to say whether aurora could be visible there, and when. Args: lat: Latitude in decimal degrees (-90..90). lon: Long
get_light_pollution
Estimate light pollution at any point: approximate Bortle class and what's visible there. Use for "how dark is the sky at X" / "can I see the Milky Way from X". Returns the zenith-brightness-derived estimate (mpsas, approximate Bortle class) and a plain-language ceiling: what the Milky Way, naked-ey

Website · JSON · Text for agents · Registry updated 2026-08-19