Arcsecond.io

Arcsecond.io MCP Connector for Claude

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Access astronomical data and manage observatories with Arcsecond.io — search objects and track night logs via AI.

7 tools Official Updated Jun 28, 2026 Official Vinkius Partner

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.
astronomyobservatory-datacelestial-objectsdata-loggingresearch-toolsscientific-data

7 tools expose this connector's capabilities to your AI agent.

get_account_check

Verify Arcsecond account connection

get_object

Get details for a specific astronomical object

list_datasets

List datasets available for an observatory

list_night_logs

List observation night logs for an observatory

list_observing_sites

List observing sites for an observatory

list_telescopes

List telescopes for an observatory

search_objects

Search for astronomical objects (stars, galaxies, planets)

See how to talk to your AI agent using Arcsecond.io.

Search for the 'Andromeda Galaxy' and get its coordinates.

I've found the Andromeda Galaxy (M31). Its coordinates are RA: 00h 42m 44s, Dec: +41° 16′ 09″.

List all observing sites for the 'lco' observatory.

The LCO observatory has several sites, including McDonald Observatory (Texas), Cerro Tololo (Chile), and Siding Spring (Australia).

Show me recent night logs for subdomain 'my-observatory'.

I've retrieved the latest 5 night logs for 'my-observatory'. The most recent log from last night contains 15 successful observations and 3 calibration frames.

Log in to your Arcsecond.io account and go to your **Profile** page. You will find your Personal API Key there.

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