astronomy-mcp-server

Offline observational astronomy: positions, rise/set, moon phases, eclipses, and seasons.

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Package Details

@cyanheads/astronomy-mcp-server

0.1.2•https://www.npmjs.com/package/@cyanheads/astronomy-mcp-server

Transportstdio

Runtimebun

Package Arguments

Positional

Position 0

run

Position 1

start:stdio

Environment Variables

MCP_LOG_LEVEL(str)

Default:info

Sets the minimum log level for output (e.g., 'debug', 'info', 'warn').

ASTRONOMY_ENABLE_HORIZONS(str)

Default:false

Register the astronomy_get_ephemeris tool, which fetches small-body and spacecraft ephemerides from JPL Horizons. Off by default; the core is keyless and offline.

ASTRONOMY_ENABLE_SATELLITES(str)

Default:false

Register the astronomy_get_satellite_passes tool, which predicts visible satellite passes from CelesTrak TLEs propagated with SGP4. Off by default.

ASTRONOMY_DEFAULT_TIMEZONE(str)

Fallback IANA timezone for observer-local output when a tool call omits `timezone`. Unset means UTC-only output.

@cyanheads/astronomy-mcp-server

0.1.2•https://www.npmjs.com/package/@cyanheads/astronomy-mcp-server

TransportStreamable HTTP

Runtimebun

Package Arguments

Positional

Position 0

run

Position 1

start:http

Environment Variables

MCP_HTTP_HOST(str)

Default:127.0.0.1

The hostname for the HTTP server.

MCP_HTTP_PORT(str)

Default:3010

The port to run the HTTP server on.

MCP_HTTP_ENDPOINT_PATH(str)

Default:/mcp

The endpoint path for the MCP server.

MCP_AUTH_MODE(str)

Default:none

Authentication mode to use: 'none', 'jwt', or 'oauth'.

MCP_LOG_LEVEL(str)

Default:info

Sets the minimum log level for output (e.g., 'debug', 'info', 'warn').

ASTRONOMY_ENABLE_HORIZONS(str)

Default:false

Register the astronomy_get_ephemeris tool, which fetches small-body and spacecraft ephemerides from JPL Horizons. Off by default; the core is keyless and offline.

ASTRONOMY_ENABLE_SATELLITES(str)

Default:false

Register the astronomy_get_satellite_passes tool, which predicts visible satellite passes from CelesTrak TLEs propagated with SGP4. Off by default.

ASTRONOMY_DEFAULT_TIMEZONE(str)

Fallback IANA timezone for observer-local output when a tool call omits `timezone`. Unset means UTC-only output.