This archive is now a read only site.
There is also a copy of the history that has been converted into a git repository at: https://github.com/IATI/IATI-Wiki-Archive.
Please do not rely on any of the information found here.
IATI data may be stored in many different backend databases. It would be useful to have a standardised approach to providing APIs onto IATI data so that front-end applications can be agnostic about the backend they use.
The API Standard page is currently being developed with version 1.0 of an API Convention.