How do we know if something has an API?

Question

How do I know if information is available through an API?

Solution

Published APIs can be found in the API catalog. If the information is not found:

The information may have been published in a closed API, in which case it will not 
appear in the catalog.
The information may not yet be available from the API gateway.

If you cannot find the desired information, please contact tike-ohjelmistotuotanto@helsinki.fi.