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Cancer.gov

NCI Drug Dictionary API

Serves the NCI Drug Dictionary — definitions of drugs and drug combinations used in cancer treatment and prevention, matched across generic names, brand names and code names. Supports autosuggest, search, alphabetical expansion and retrieval by id or pretty URL name. No credential required.

Documentation Provider Profile APIs.io OpenAPI GitHub

NCI Drug Dictionary API is one of 15 APIs that Cancer.gov publishes on the APIs.io network, described by a machine-readable OpenAPI specification.

Tagged areas include Drugs, Terminology, Content, and Dictionary. The published artifact set on APIs.io includes an OpenAPI specification and API documentation.

This API exposes 9 operations across 9 paths, organized into 3 resource areas, and defines 13 schemas. It is described by OpenAPI 3.0.0, at version 1.0.0.

Requests are made against a single base URL, https://webapis.cancer.gov/drugdictionary/v1.

9 operations 9 paths 13 schemas 9 GET

Metadata

The identity and technical contract details declared by the specification.

Specification
OpenAPI 3.0.0
API Version
1.0.0
Base URL
https://webapis.cancer.gov/drugdictionary/v1
Resource Areas
3

Paths & Operations 9

Across 9 paths, the API surfaces 9 operations — 9 GET. They span 3 resource areas: Autosuggest, Drugs, HealthCheck. Each is listed below with its method, path, parameters, and response codes.

Autosuggest 2
GET
/Autosuggest
Searches for drug dictionary terms with names matching the query text.
Autosuggest_GetSuggestions 6 params → 200
GET
/Autosuggest/status
Provides a simple report of system status, suitable for monitoring. (Obsolete. Use /HealthCheck/status instead.)
Autosuggest_GetStatus → 200
Drugs 6
GET
/Drugs/expand/{character}
List all drug dictionary entries starting with the same first character.
Drugs_Expand 6 params → 200
GET
/Drugs
Get a list of all terms (no search string).
Drugs_GetAll 5 params → 200
GET
/Drugs/{id}
Get the drug definition by its ID
Drugs_GetById 1 param → 200
GET
/Drugs/{prettyUrlName}
Get the dictionary entry based on Pretty URL Name.
Drugs_GetByName 1 param → 200
GET
/Drugs/search
Retrieves a portion of the overall set of drug definitions that match a specific search criteria. This will return only DrugTerms, but will match against the Drug Term's name OR any of its Aliases.
Drugs_Search 4 params → 200
GET
/Drugs/status
Provides a simple report of system status, suitable for monitoring. (Obsolete. Use /HealthCheck/status instead.)
Drugs_GetStatus → 200
HealthCheck 1
GET
/HealthCheck/status
Provides an endpoint for checking that the glossary API and underlying Elasticsearch instance are in a good operational state.
HealthCheck_IsHealthy → 200

Schemas 13

The contract defines 13 schemas that model the data the API accepts and returns. The most detailed are IDrugResource (6 properties), DrugResource (6 properties), DrugTermResults (3 properties), TermAlias (2 properties). Each schema is shown below with its type and property counts.

Suggestion
object
Describes a single suggestion from autosuggest
2 properties
MatchType
string
Friendly names for the ways to perform a match.
DrugResourceType
string
Identifies the type of an IDrugResource descendant.
TermNameType
string
Identifiers for the various types of names a term might have.
DrugTermResults
object
Represents the results of a search operation.
3 properties
ResultsMetadata
object
Metadata about a DrugResults object.
2 properties
IDrugResource
object
Interface defining the fields common to all dictionary entries.
6 properties
Metalink
object
Metalink
1 property
DrugTerm
TermAlias
object
Data structure representing one alias for a drug term.
2 properties
Definition
object
Contains the definition of a drug dictionary entry.
2 properties
DrugInfoSummaryLink
object
Contains information for creating a link to a drug information summary.
2 properties
DrugResource
object
This class implements the properties defined in IDrugResource, however it expressly does NOT "implement" IDrugResource. The intent is to enforce the use of cla…
6 properties

Specification

The full machine-readable OpenAPI contract behind this narrative.

Source

cancer-gov-drug-dictionary-openapi.yml Raw ↑

Other APIs Cancer.gov publishes across the network.

NCI Clinical Trials Search API
AE Profile APIs.io
NCI Genomic Data Commons (GDC) API
AE Profile APIs.io
NCI SEER API
AE Profile APIs.io
NCI MoDaC API
AE Profile APIs.io
NCI EVS Terminology API
AE Profile APIs.io
NCI Content Syndication Services
AE Profile APIs.io
Cancer.gov Diseases API
AE Profile APIs.io
Cancer.gov Interventions API
AE Profile APIs.io
Cancer.gov Terms API
AE Profile APIs.io
Cancer.gov Trials API
AE Profile APIs.io
NCI Glossary Term API
AE Profile APIs.io
Cancer.gov Site-Wide Search API
AE Profile APIs.io
#Drugs#Terminology#Content#Dictionary
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API Details
ID
cancer-gov:drug-dictionary-api
Base URL
https://webapis.cancer.gov/drugdictionary/v1
Docs
https://webapis.cancer.gov/drugdictionary/v1/
Provider
Cancer.gov
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