Bring Astronomy
to Claude Code

The Arcsecond.io MCP Server provides a unified natural language interface to the world's astronomical data. Connect your Arcsecond account to your AI agent to search for celestial objects, manage observatory data, and track observation night logs seamlessly.

Key Features

• Celestial Object Search — Search for stars, galaxies, planets, and more to retrieve official names, types, and precise coordinates (RA/Dec).
• Object Metadata — Access detailed astrophysical data, including visual magnitude and classifications for millions of objects.
• Observatory Management — List observing sites, telescopes, and instruments associated with your observatory subdomain.
• Data Tracking — Access datasets and night logs to monitor ongoing observations and historical data collections.
• Night Log Oversight — Retrieve detailed logs of observations and calibrations organized by local noon-to-noon cycles.
• Global Data Access — Interface with a vast network of astronomical databases through a single, consistent API.

Who is this for?

• Professional Astronomers — Quickly retrieve object coordinates and check observatory status without manual database queries.
• Amateur Stargazers — Search for interesting celestial targets and get detailed metadata for planning observation sessions.
• Data Scientists — Integrate astronomical data retrieval into automated research and analysis workflows.