If you're looking at the entry for a ligand, for example, adenosine, there's a link on the webpage to entries for which this entry exists as a free ligand. However, I want to access this via the API and can't seem to find docs/info on how to do that.

I have been looking at the fields you can use to get custom reports.


1 Answer 1


I'm not sure about the RCSB, but you can get such a list from the PDBe REST API, as documented in the compounds section:


Alternatively, from an older service:



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