National Institutes of Health (NIH)

NCBI E-utilities (Entrez Programming Utilities)

The public API to the NCBI Entrez system providing programmatic access to all Entrez databases including PubMed, PMC, Gene, Nuccore, and Protein. Supports searching, fetching, linking, and summarizing records across 38+ databases.

GitHub

Documentation

📖
Documentation
https://www.ncbi.nlm.nih.gov/books/NBK25500/

Other Resources

🔗
APIsJSON
https://raw.githubusercontent.com/api-evangelist/nih/refs/heads/main/apis.yml

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API entry from apis.yml

apis.yml Raw ↑ 
name: NCBI E-utilities (Entrez Programming Utilities)
description: The public API to the NCBI Entrez system providing programmatic access to all Entrez databases
  including PubMed, PMC, Gene, Nuccore, and Protein. Supports searching, fetching, linking, and summarizing
  records across 38+ databases.
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
humanURL: https://www.ncbi.nlm.nih.gov/home/develop/api/
baseURL: https://eutils.ncbi.nlm.nih.gov/entrez/eutils/
tags:
- PubMed
- Literature
- Genomics
- Entrez
properties:
- type: Documentation
  url: https://www.ncbi.nlm.nih.gov/books/NBK25500/
contact:
- FN: NCBI
  email: info@ncbi.nlm.nih.gov