"Sky" matching MCP servers:

A local, open-source MCP server that wraps astronomy data services (SIMBAD, JPL Horizons, VizieR, etc.) behind a conversational interface, enabling AI assistants to answer astronomy questions with real, typed, and provenance-tracked data.

A local MCP server for SkyPortal and Fritz that exposes astronomical transient data (photometry, spectra, classifications, observability) as tools for AI coding assistants.

Gives AI assistants read-only access to public astronomy archives (TNS, SIMBAD, VSX, Gaia, TESS, ZTF, Rubin and others) so a sky position or object can be checked in seconds for whether it is already known. It returns compact JSON verdicts with evidence, failed sources, image links, and tonight's observable unclassified transients.

Enables AI assistants to perform read-only checks of sky positions against public astronomy archives, returning compact JSON verdicts and evidence for known transients, variables, TESS objects, asteroids, and other objects, plus observation planning and image links.

Provides real-time aircraft tracking data from OpenSky Network combined with FAA aircraft registry information, enabling rich aviation queries that merge live flight positions with technical specifications.

Provides real-time weather information for South Korea, including temperature, sky condition, precipitation type, humidity, and precipitation amount, based on latitude and longitude coordinates using public data from the Korea Meteorological Administration.

Enables AI agents to search Slovakia's national register of legal entities, sole traders and public authorities by name, IČO or address filters, and to pull a complete record for a single entity — statutory bodies, stakeholders, equity and shares, predecessors, address history and source register. Queries run keyless against the Statistical Office of the Slovak Republic's open RPO API, with diacritics-insensitive matching and IČO-to-internal-id resolution handled for the caller.

Integrates SkyFi satellite imagery and OpenStreetMap services with AI applications to enable high-resolution image searching, ordering, and area monitoring. It provides 21 tools for geospatial tasks, including geocoding, tasking quotes, and satellite pass prediction.

Enables natural language queries of astronomical data across multiple archives (Gaia, 2MASS, image holdings) via the Trillian platform, allowing users to search catalogs and find images by sky coordinates.

MCP server for Slovak business registers (RPO) — AI agents can query 1.4M+ Slovak legal entities via Slovakia's official Statistical Office API. Search companies by name, IČO, or get full entity details including legal form, address, and statutory representatives.

Enables access to Slovak legislation from the Collection of Laws via static.slov-lex.sk. Supports listing consolidated versions, retrieving act metadata, and fetching full text with verifiable citations.

Enables querying statistical data from the Statistical Office of the Slovak Republic via natural language or direct tool calls.