On Saturday, November 29, 2025, from 8:00 to 14:00 PST, Science portal, advanced search, and other CADC services may experience temporary outages or interruptions due to planned maintenance.

Web Services

API Description
ac
  • Access Control
  • Web service for managing User and Group access
ams
  • Archive Metadata Service
  • CAOM metadata repository with authenticated TAP query capabilities to support metadata curation. This service is not intended for general use.
arc
  • Distributed storage access
argus
  • Table Access Protocol
  • query CADC data using the CAOM TAP web service
caom2ops (datalink)
  • IVOA DataLink service
  • CAOM-2 downloadable links and related resources for artifacts in a plane
caom2ops (metadata)
  • CAOM-2 metadata for a single CAOM2 observation
caom2ops (pkg)
  • CAOM-2 package (tar) with all artifacts of a single plane
caom2ops (soda)
  • IVOA SODA service
  • CAOM-2 cutouts on artifacts (files)
cred
  • Credential delegation and generation
data
  • Primary interface for storage and retrieval of CADC telescope archive files
doi
  • generation of Digital Object Identifiers (DOIs) for publication data sets
sia
  • IVOS Simple Image Access
  • sia queries for CAOM-2
vault
  • distributed storage access
youcat
  • User Catalogue service
  • database-as-a-service to create, query, and share tables
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