Here are the specifics:
There current data summary is here: http://nif-services.neuinfo.org/servicesv1/v1/summary?q=*
The other services are based on the id of each database and can be accessed like this
http://nif-services.neuinfo.org/servicesv1/v1/federation/data/nlx_144509-1?q=miame
The documentation is here: http://nif-services.neuinfo.org/servicesv1/
*Note we have aligned some data sources into single views like nervous system connectivity (nif-0000-07732-1), annotations (nlx_149407-1) or research animals (nif-0000-08137-1). These sources envelop other sources and those source ids like BAMS (nif-0000-00018) will respond to the identifiers in the query parameter (q=), but not in the source parameter (/nlx-144509-1).
*For the less xml literate the same data can be played with in a gui: https://neuinfo.org/mynif/search.php?q=*
It would be helpful to know if anyone in neuroinformatics would find this useful, and if you don't I would love to know why.