CatList returns a list of IRSA's public or private catalog holdings in XML or HTML format.
The general format of an HTTP GET query is:
The URL of the IRSA CatList program is:
and its keywords are described below:
| Keyword | Description | Allowed Values |
| mode | Catalog listing output format: XML, HTML, or IPAC ASCII | html xml ascii |
| projshort | Mission/project name for which to show available catalogs |
WISE (default) 2MASS IRAS PTF Planck Spitzer MSX COSMOS Bolocam AKARI USNO DENIS Herschel Gaia Composite_Catalogs Contributed_Data_Sets Simulated ZTF |
| Mission | Output Format | URL |
| 2MASS | XML | https://irsa.ipac.caltech.edu/cgi-bin/Gator/nph-scan?projshort=2MASS&mode=xml |
| IRAS | HTML | https://irsa.ipac.caltech.edu/cgi-bin/Gator/nph-scan?projshort=IRAS&mode=html |
| WISE | ASCII | https://irsa.ipac.caltech.edu/cgi-bin/Gator/nph-scan?projshort=WISE&mode=ascii |