NCBI (host server for the PubMed database and others) will be transitioning to using HTTPS-only protocols on September 30, 2016

NCBI will be transitioning to using HTTPS-only protocols on September 30, 2016. This change may affect any software that uses NCBI APIs such as the E-utilities or NCBI software toolkits such as the C/C++ and SRA toolkits.

If you are using or building software that uses API calls to the NCBI servers, please see http://www.ncbi.nlm.nih.gov/home/develop/https-guidance.shtml for more information, as well as suggested actions you can take to mitigate any problems with your software that may arise. The page also lists several test servers that you can use to check the performance of your current API calls

This page is also linked from the NCBI Develop page (a direct link from the NCBI home page) and the NCBI API page:

http://www.ncbi.nlm.nih.gov/home/develop/
http://www.ncbi.nlm.nih.gov/home/develop/api.shtml

If you have questions, please write to info@ncbi.nlm.nih.gov.

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