| API | Description | Category | Date |
|---|---|---|---|
| Timeanddate.com | Time and date information service | Tools | 2013-06-04 |
| Weather Source | Weather data service | Weather | 2013-05-09 |
| Asterank SkyMorph / NEAT | Moving and variable celestial object database | Science | 2013-05-03 |
| Asterank Kepler Project | Exoplanet and potential planet information database | Science | 2013-05-03 |
| Asterank | Asteroid and comet information database | Science | 2013-05-03 |
| Asterank Minor Planet Center | Minor celestial body information database | Science | 2013-05-02 |
| Nasa Exoplanet Archive | Astronomical archive | Science | 2013-04-15 |
| Spizter Heritage Archive | Spitzer Space Telescope archival data | Science | 2013-03-11 |
| Astro-Phys.com Ephemeris | Time-based location tables for astronomical objects | Science | 2013-01-23 |
| SAI Virtual Observatory WCS Fix | Star coordinate information service for FITS images | Science | 2012-11-14 |
| SDSS Cone Search | Astronomical information retrieval service | Science | 2012-09-24 |
| SDSS ImgCutout | Sky map image retrieval service | Science | 2012-09-13 |
| NASA EOS Metadata Clearninghouse (ECHO) | Earth-observing satellite data service | Science | 2012-07-31 |
| Unofficial Heavens Above | Satellite tracking service | Science | 2012-07-31 |
| NOAA GOES Solar X-Ray Imager | Solar and astronomical image service | Science | 2012-07-31 |
| OpenSkyQuery SkyPortal | Astronomical catalog querying service | Science | 2012-07-25 |
| Sesame Name Resolver | Astronomical object information service | Science | 2012-07-25 |
| NASA Astrophysics Data System | Astronomy and physics data service | Reference | 2012-07-12 |
| Virtual Observatory Services Distance | Space object distance calculator | Science | 2012-05-16 |
| GRBHosts | Astronomical data service | Science | 2012-04-17 |





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