NCBI provides a variety of resources that allow developers to access and manipulate NCBI data in their applications.
Programming interfaces including the E-utilities, BLAST URL API and PUGAPI Icon
Software libraries including the C++ and SRA toolkitsCode Icon
Schema, DTDs and other data specificationsFolder Icon
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An introduction to NCBI's Entrez programming utilities, the API to the Entrez system of databases at NCBI.