Genomics · Database
NCBI (E-utilities and Datasets)
Programmatic access to NCBI biomedical, genomic, sequence, and literature databases via APIs.
What NCBI (E-utilities and Datasets) is
The National Center for Biotechnology Information (NCBI), part of the United States National Library of Medicine, maintains a collection of biomedical, chemical, and genomic resources. Its databases store information spanning genes, assembled genomes, nucleotide and protein sequences, taxonomic records, and scientific literature.
Researchers can query and retrieve these records programmatically using application programming interfaces (APIs), including the Entrez Programming Utilities (E-utilities) and the NCBI Datasets API, or download data directly for analysis.
How it is organised
The service provides programmatic interfaces and code libraries to interact with NCBI data collections. Users query databases—including Assembly, Nucleotide, Protein, Gene, PubMed, and Taxonomy—and retrieve structured biological and bibliographic records using E-utilities and Datasets APIs.
Key facts
- Primary category
- Genomics
- Key interfaces
- E-utilities API, Datasets API
- Core record types
- Genes, genomes, sequences, taxonomy, literature
What you can use it for
- Genomic and sequence data retrieval
- Automate the download of nucleotide sequences, protein records, and assembled genomes for bioinformatics pipelines.
- Taxonomic queries
- Retrieve structured organismal lineage and taxonomic classifications directly through API endpoints.
- Literature and bibliographic search
- Query citations and biomedical articles indexed across PubMed, PubMed Central (PMC), and Bookshelf.
Query it here
The research agent queries NCBI (E-utilities and Datasets) directly — no account, no API key — and every answer links back to the record it came from. Ask in plain language and it writes the query.
Strengths and limits
Good at
- Provides unified programmatic entry points across diverse biological and biomedical repositories.
- Supports automated data retrieval for genes, proteins, genomes, and published scientific literature.
Questions
Can I search NCBI (E-utilities and Datasets) without writing code?
Yes. The research agent queries NCBI (E-utilities and Datasets) directly, with no account or API key, and cites the record behind every answer. Ask in plain language — for a gene, a protein, a compound or a study — and it builds the query for you.
Can I reuse data from NCBI (E-utilities and Datasets)?
US government work — public domain; individual records may carry submitter terms. Terms: https://www.ncbi.nlm.nih.gov/home/about/policies/
What databases can be queried using these APIs?
The APIs query NCBI repositories including Gene, Genome, Nucleotide, Protein, Taxonomy, PubMed, PMC, BioProject, and PubChem, among others.
How do researchers access NCBI data programmatically?
Data can be accessed and retrieved using NCBI APIs, specifically E-utilities and Datasets, as well as associated code libraries.
Can data be submitted back to NCBI databases?
Yes, NCBI provides submission interfaces for researchers to deposit manuscripts and biological data into its repositories.
Written from NCBI (E-utilities and Datasets)'s own website and reference material. Statements citing a figure that does not appear there are removed before publication. Licence and running details come from our registry.