# National Library of Medicine Discovery API

**Canonical:** https://apis.io/apis/national-library-of-medicine/national-library-of-medicine-discovery-api/  
**Provider:** National Library of Medicine — https://apis.io/providers/national-library-of-medicine/  
**Base URL:** https://eutils.ncbi.nlm.nih.gov/entrez/eutils  
**Documentation:** https://www.ncbi.nlm.nih.gov/home/develop/api

National Library of Medicine Discovery API is one of 4 APIs that [National Library of Medicine](https://apis.io/providers/national-library-of-medicine/) publishes on the [APIs.io](https://apis.io/) network, described by a machine-readable OpenAPI specification. Tagged areas include Discovery. The published artifact set on APIs.io includes an OpenAPI specification, API documentation, a getting-started guide, and an API reference.

Discover database metadata, related records, and citations.

## Machine-readable artifacts (5)

- **OpenAPI** — https://raw.githubusercontent.com/api-evangelist/national-library-of-medicine/refs/heads/main/openapi/national-library-of-medicine-discovery-api-openapi.yml
- **Documentation** — https://www.ncbi.nlm.nih.gov/home/develop/api
- **GettingStarted** — https://www.ncbi.nlm.nih.gov/books/NBK25500/
- **Reference** — https://www.ncbi.nlm.nih.gov/books/NBK25497/
- **APIsJSON** — https://raw.githubusercontent.com/api-evangelist/national-library-of-medicine/refs/heads/main/apis.yml

## Other National Library of Medicine APIs (3)

- [National Library of Medicine History API](https://apis.io/apis/national-library-of-medicine/national-library-of-medicine-history-api/)
- [National Library of Medicine Retrieve API](https://apis.io/apis/national-library-of-medicine/national-library-of-medicine-retrieve-api/)
- [National Library of Medicine Search API](https://apis.io/apis/national-library-of-medicine/national-library-of-medicine-search-api/)

## Tags

Discovery

---

Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/apis/national-library-of-medicine/national-library-of-medicine-discovery-api/). The API's provider profile, Kin Score and agent-readiness rating are at https://apis.io/providers/national-library-of-medicine/.