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United States National Library of Medicine

United States National Library of Medicine Studies API

Clinical trial study search and retrieval

Documentation Provider Profile APIs.io OpenAPI GitHub

United States National Library of Medicine Studies API is one of 10 APIs that United States National Library of Medicine publishes on the APIs.io network, described by a machine-readable OpenAPI specification.

Tagged areas include Studies. The published artifact set on APIs.io includes an OpenAPI specification and API documentation.

This API exposes 2 operations across 2 paths, and defines 3 schemas. It is described by OpenAPI 3.0.3, at version 1.0.0.

Requests are made against a single base URL, https://blast.ncbi.nlm.nih.gov/blast.

2 operations 2 paths 3 schemas 2 GET

Metadata

The identity and technical contract details declared by the specification.

Specification
OpenAPI 3.0.3
API Version
1.0.0
Base URL
https://eutils.ncbi.nlm.nih.gov/entrez/eutils
Contact
NCBI BLAST
License
Public Domain
Resource Areas
1

Paths & Operations 2

Across 2 paths, the API surfaces 2 operations — 2 GET. Each is listed below with its method, path, parameters, and response codes.

Studies 2

Clinical trial study search and retrieval

GET
/studies
Search Clinical Trial Studies
searchStudies 14 params → 200400
GET
/studies/{nctId}
Get Study by NCT ID
getStudy 3 params → 200404

Schemas 3

The contract defines 3 schemas that model the data the API accepts and returns. The most detailed are ProtocolSection (9 properties), Study (3 properties), StudySearchResponse (3 properties). Each schema is shown below with its type and property counts.

StudySearchResponse
object
Paginated search results
3 properties
ProtocolSection
object
Protocol information for a clinical trial
9 properties
Study
object
A clinical trial study record from ClinicalTrials.gov
3 properties

Specification

The full machine-readable OpenAPI contract behind this narrative.

Source

united-states-national-library-of-medicine-studies-api-openapi.yml Raw ↑

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#Studies
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API Details
ID
united-states-national-library-of-medicine:united-states-national-library-of-medicine-studies-api
Base URL
https://eutils.ncbi.nlm.nih.gov/entrez/eutils
Docs
https://www.ncbi.nlm.nih.gov/books/NBK25497/
Provider
United States National Library of Medicine
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