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[bioontology-support] [BioPortal] Feedback from STEPHEN COATES

John Graybeal jgraybeal at
Thu Mar 4 13:18:03 PST 2021

Hello Stephen,

Sorry for the delay in responding to your queries.

We are not aware of any problems with the BioPortal API, we have been making queries ourselves throughout this period, and have not had problems ourselves or from any other reports.  No particular maintenance has been going on during this period, and we are not aware of any bandwidth issues.

It may be that you are making queries for a specific ontology, like CPT, that is no longer publicly available. Information about this is published at the CPT page (, and at a blog post that fully describes the reason for the elimination of CPT, current status of the change, and possible approaches to work with CPT directly. You can find it at

I will be happy to troubleshoot either of these issues if you can give me additional details (example API requests and the response you receive, or your account name that you can't access).


On Feb 14, 2021, at 5:40 PM, support at<mailto:support at> wrote:


Email: stephen at<mailto:stephen at>



Is the site being updated or experiencing difficulties?

1) We have been using our API for a few years for BioPortal but now it doesn't seem to work for at least a week. Has anything changed?

2) I opened up a new account to get a new API, but now I can't open that same account. Are updates being made at BioPortal?

Is there perhaps a large user taking up bandwidth?

bioontology-support mailing list
bioontology-support at<mailto:bioontology-support at>

John Graybeal
Technical Program Manager
Center for Expanded Data Annotation and Retrieval /+/ NCBO BioPortal
Stanford Center for Biomedical Informatics Research
650-736-1632  | ORCID  0000-0001-6875-5360

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