Cancer.gov

Cancer.gov is the web presence of the National Cancer Institute (NCI), the U.S. federal government's principal agency for cancer research and training. NCI and its partner programs expose a rich set of open APIs covering cancer clinical trials, genomic data, cancer-incidence surveillance, research data and models, terminology and vocabularies, and PDQ content — giving researchers, advocacy groups, clinicians, and application developers programmatic access to authoritative cancer data and content.

Cancer.gov publishes 48 API contracts indexed on the APIs.io network, including Diseases API, Interventions API, Terms API, and 45 more. Tagged areas include Cancer, Federal Government, Healthcare, Research, and Clinical Trials.

The Cancer.gov catalog on APIs.io includes 1 Spectral governance ruleset.

Cancer.gov’s developer surface includes authentication, engineering blog, CLI, changelog, documentation, API reference, signup flow, and 41 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

50.5/100 developing ▬ flat Agent 31/100 agent ready Heartbeat 76/100 alive saas Full breakdown ↓
scored 2026-11-02 · rubric v0.26.0 · Show this score on your site →

AccessFreeSelf serve⚡ Free to try

17 published contracts 1 MCP Servers 5 Agent Skills

Cancer Federal Government Healthcare Research Clinical Trials Genomics Open Data Disease Surveillance

What this lets a business do 1

Business capabilities this provider's published APIs can perform, derived from its own contracts. Browse all capabilities →

Clinical Trials Management

BC-1520

Trials

GET /trials GET /trials/{id}

Kin Score

Kin Score How this is scored →
scored 2026-11-02 · rubric v0.26.0

Composite quality — 50.5/100 · developing

Contract Quality 8.4 / 19

Developer Ergonomics 9.2 / 15

Access Clarity 6.3 / 15

Operational Transparency 5.6 / 10

Contract Governance 2.9 / 9

Discoverability 4.8 / 8

Regulatory Posture 3.7 / 15

Create-or-Update Ergonomics 0.0 / 10

Agent readiness — 31/100 · agent ready

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 10

Documented Reversibility 0 / 6

MCP Server 0 / 12

Machine-Readable Auth 10 / 10

Idempotency 0 / 9

Stable Error Semantics 8 / 8

Request/Response Examples 7 / 7

Rate-Limit Signaling 7 / 7

Typed Event Surface 0 / 6

Agent Skills 5 / 5

Well-Known Catalog 0 / 4

Consent & Bot Identity 0 / 3

A2A Agent Card 0 / 8

Dry-Run / Simulate Mode 4 / 4

Delegated User Identity 0 / 6

Protected Resource Metadata 0 / 5

Registration Without a Human 0 / 6

Agentic Commerce Well-Known Document 0 / 5

Pagination 0 / 5

Distinct Operations 3 / 3

MCP Tool Quality 6 / 6

Regulatory Posture applies to this provider. Its tags matched the Government & Public Sector regime, so Regulatory Posture carries 15 points of the composite. If this regime is wrong for your business, say so on your provider repo — the applicability map is public and we will correct it.

Create-or-Update Ergonomics applies to this provider. This API accepts writes, so it carries 10 points of the composite. It is scored from the published contracts themselves: whether a caller can create-or-update in one call, whether the write accepts a key the caller already holds, and whether the response says which branch ran. Without that, every write needs a search-and-branch in front of it, and the first time that check is skipped a duplicate record is created. Scored against the observed mean rather than raw — a provider at the catalog average is unchanged by this facet, not penalised by it.

The six quality facets above are damped to 75 points between them, because the conditional facet above carries the other 25. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 75% of its nominal weight, not 100%. The full arithmetic is at apis.io/rating/.

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Agent readiness — checks not met, largest first (exact, from this profile):

MCP Server +12 pts — deployment.mode + probe verdict on the mcp/ manifest, not the pointer; an unprobed slug falls back to authorship
Idempotency +9 pts — OpenAPI mutating operations declare an idempotency key — a header, a request-body property, or a named de-duplication token whose own description says so (verified); else common[].type matches /idempoten/i (documented)
A2A Agent Card +8 pts — a2a/-a2a.yml manifest, graded on conformance.grade against A2A 1.0.0
Registration Without a Human +6 pts — a `registration_endpoint` in the served RFC 8414 / OIDC discovery document
Delegated User Identity +6 pts — a served discovery document listing authorization_code in grant_types_supported (served), else an oauth2 authorizationCode flow or openIdConnect declared in an OpenAPI (documented)
Typed Event Surface +6 pts — AsyncAPI document, OR webhooks/callbacks objects in the as-published OpenAPI, OR common[].type includes Webhooks

6 more unmet checks in the Agent Readiness table above.

Kin Score — facets with the most composite points still available (weight × headroom):

Contract Quality scores 44.8 — up to +13.8 composite points
Access Clarity scores 42.1 — up to +11.6 composite points
Contract Governance scores 31.8 — up to +8.2 composite points

Each check links to what satisfies it. Publish the artifact, or tell us where it already lives, and the score moves on the next scoring run.

Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. Every facet and dimension name above is a link: it opens that measurement's own page — what it means, the exact checks that feed it, how the whole catalog distributes on it, and the providers at the top of it. This rating is computed from the provider profile at artifacts.apis.io/cancer-gov/apis.yml: open an issue on github.com/api-evangelist/cancer-gov to ask a question or point us at an artifact you publish. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

Markets this provider is in provisional

The Kin Score Market layer reads a provider inside its market: its position, and how deep its integrations go. Depth is only comparable within a position. Provisional and unweighted: not part of the Kin Score or agent readiness.

Market	Position	Depth	Registered MCP server	Declares compatibility
Life Sciences (Biotech and Pharma R&D)	standard	17.2 (thin)	-	-
US Federal API Programs (api.data.gov, Login.gov, GSA MAS, FedRAMP)	standard	17.2 (thin)	-	-
GA4GH Genomics Standards (htsget, DRS, TES, WES, Beacon, Passports)	standard	17.2 (thin)	-	-

Registered MCP server and declares compatibility are report only — not weighted. Undeclared means we found nothing we can read, so there is no number: we never infer integrations.

Standards implemented 1

Standards this provider implements or carries. De facto ones are profiled and measured by the API Commons; formal ones come from the standards directory and are linked by the provider's own tags. The evidence column says how each claim was established — not that it was made.

OpenAPI

measured — observed by APIs.io (published)

APIs 48

Individual APIs this provider publishes, each with its own machine-readable definition.

NCI Clinical Trials Search API

RESTful API that lets developers build applications, search tools, and digital platforms over NCI-supported cancer clinical trials data sourced from NCI's Clinical Trials Report...

NCI Genomic Data Commons (GDC) API

The external-facing REST interface for the NCI Genomic Data Commons. Drives the GDC Data Portal and GDC Submission Portal and is open for programmatic access. Provides query, do...

NCI Content Syndication Services

A suite of syndicated content channels — RSS feeds, the NCI Dictionary Widget, and syndicated publication content — that partner sites and health platforms can embed to deliver ...

Cancer.gov Diseases API

The Diseases API from Cancer.gov — 1 operation(s) for diseases.

Cancer.gov Interventions API

The Interventions API from Cancer.gov — 1 operation(s) for interventions.

Cancer.gov Terms API

The Terms API from Cancer.gov — 1 operation(s) for terms.

Cancer.gov Trials API

The Trials API from Cancer.gov — 2 operation(s) for trials.

Cancer.gov Application version endpoint API

The Application version endpoint API from Cancer.gov — 1 operation(s) for application version endpoint.

Cancer.gov Asset Details Controller API

The asset-details-controller API from Cancer.gov — 1 operation(s) for asset-details-controller.

Cancer.gov Autosuggest API

The Autosuggest API from Cancer.gov — 4 operation(s) for autosuggest.

Cancer.gov Concept endpoints API

The Concept endpoints API from Cancer.gov — 21 operation(s) for concept endpoints.

Cancer.gov Delete Collection Controller API

The delete-collection-controller API from Cancer.gov — 1 operation(s) for delete-collection-controller.

Cancer.gov Delete Data File Controller API

The delete-data-file-controller API from Cancer.gov — 1 operation(s) for delete-data-file-controller.

Cancer.gov Delete Predictions Controller API

The delete-predictions-controller API from Cancer.gov — 1 operation(s) for delete-predictions-controller.

Cancer.gov Disease API

Hematopoietic, lymphoid neoplasms and solid tumor diseases

Cancer.gov Doe Collection Controller API

The doe-collection-controller API from Cancer.gov — 1 operation(s) for doe-collection-controller.

Cancer.gov Doe Create Bulk Datafile Controller API

The doe-create-bulk-datafile-controller API from Cancer.gov — 1 operation(s) for doe-create-bulk-datafile-controller.

Cancer.gov Doe Create Collection Controller API

The doe-create-collection-controller API from Cancer.gov — 1 operation(s) for doe-create-collection-controller.

Cancer.gov Doe Create Datafile Controller API

The doe-create-datafile-controller API from Cancer.gov — 1 operation(s) for doe-create-datafile-controller.

Cancer.gov Doe Download Controller API

The doe-download-controller API from Cancer.gov — 1 operation(s) for doe-download-controller.

Cancer.gov Doe Download Files Controller API

The doe-download-files-controller API from Cancer.gov — 1 operation(s) for doe-download-files-controller.

Cancer.gov Doe Retry Download Task Controller API

The doe-retry-download-task-controller API from Cancer.gov — 1 operation(s) for doe-retry-download-task-controller.

Cancer.gov Doe Retry Uploadtask Controller API

The doe-retry-uploadtask-controller API from Cancer.gov — 1 operation(s) for doe-retry-uploadtask-controller.

Cancer.gov Doe Sync Download Controller API

The doe-sync-download-controller API from Cancer.gov — 1 operation(s) for doe-sync-download-controller.

Cancer.gov Drugs API

The Drugs API from Cancer.gov — 6 operation(s) for drugs.

Cancer.gov Glossary API

A glossary of cancer-related terms

Cancer.gov Hcpcs API

Healthcare Common Procedure Coding Systems (HCPCS) nomenclatures

Cancer.gov History endpoints API

The History endpoints API from Cancer.gov — 2 operation(s) for history endpoints.

Cancer.gov Home Controller API

The home-controller API from Cancer.gov — 1 operation(s) for home-controller.

Cancer.gov Mapset endpoints API

The Mapset endpoints API from Cancer.gov — 3 operation(s) for mapset endpoints.

Cancer.gov Metadata endpoints API

The Metadata endpoints API from Cancer.gov — 24 operation(s) for metadata endpoints.

Cancer.gov Mph API

Multiple Primary and Histology Coding Rules

Cancer.gov Naaccr API

NAACCR Documentation

Cancer.gov Ndc API

A searchable mirror of National Drug Codes (NDC)

Cancer.gov Perform Inferencing Controller API

The perform-inferencing-controller API from Cancer.gov — 2 operation(s) for perform-inferencing-controller.

Cancer.gov Recode API

Recode algorithms

Cancer.gov Release Notes Notifications Controller API

The release-notes-notifications-controller API from Cancer.gov — 1 operation(s) for release-notes-notifications-controller.

Cancer.gov Resource API

The Resource API from Cancer.gov — 1 operation(s) for resource.

Cancer.gov Resources API

The Resources API from Cancer.gov — 1 operation(s) for resources.

Cancer.gov Rest API Common Controller API

The rest-api-common-controller API from Cancer.gov — 17 operation(s) for rest-api-common-controller.

Cancer.gov Rx API

Antineoplastic drugs database

Cancer.gov Search API

The Search API from Cancer.gov — 2 operation(s) for search.

Cancer.gov Search endpoint API

The Search endpoint API from Cancer.gov — 4 operation(s) for search endpoint.

Cancer.gov Staging API

Staging Algorithms

Cancer.gov Subset endpoints API

The Subset endpoints API from Cancer.gov — 3 operation(s) for subset endpoints.

Cancer.gov Surgery API

SEER Site-Specific Surgery Codes

Cancer.gov Best Bets API

The Best Bets API from Cancer.gov — 2 operation(s) for best bets.

Cancer.gov Health Check API

The Health Check API from Cancer.gov — 1 operation(s) for health check.

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Open Collections 5

Open, tool-agnostic API collections (OpenAPI-derived and Bruno).

NCI Clinical Trials Search Diseases API

OPEN COLLECTION

NCI Clinical Trials Search Diseases Interventions API

OPEN COLLECTION

NCI Clinical Trials Search Diseases Terms API

OPEN COLLECTION

NCI Clinical Search Diseases Trials API

OPEN COLLECTION

NCI Clinical Trials Search API

OPEN COLLECTION

MCP Servers 1

Model Context Protocol servers that expose these APIs to AI agents.

Cancer.gov MCP Server

MCP server; 143 tools listed. A candidate, not confirmed as published by the provider.

MCP SERVER

Agent Skills 5

Packaged agent skills for driving this provider's APIs from an AI assistant.

look-up-a-cancer-drug

AGENT SKILL

look-up-a-cancer-term

AGENT SKILL

query-genomic-data-commons

AGENT SKILL

resolve-an-nci-thesaurus-concept

AGENT SKILL

search-clinical-trials

AGENT SKILL

Pricing Plans 1

Published pricing tiers and plan structures.

Cancer Gov Plans Pricing

1 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Cancer Gov Rate Limits

5 limits

RATE LIMITS

FinOps 1

Cost, billing, and metering signals for API financial operations.

Cancer Gov Finops

FINOPS

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs.

Cancer.gov API Rules

53 rules · 32 errors 14 warnings 7 info

SPECTRAL

OpenAPI Overlays 8

Overlays applied on top of this provider's contracts. Each card says who wrote it: a document the provider publishes, or one API Evangelist derived or generated.

Cancer Gov Best Bets Overlay

3 actions · update · cancer-gov-best-bets-openapi.yml

DERIVED

Cancer Gov Drug Dictionary Overlay

3 actions · update · cancer-gov-drug-dictionary-openapi.yml

DERIVED

Cancer Gov Evs Overlay

3 actions · update · cancer-gov-evs-openapi.yml

DERIVED

Cancer Gov Glossary Overlay

3 actions · update · cancer-gov-glossary-openapi.yml

DERIVED

Cancer Gov Modac Overlay

3 actions · update · cancer-gov-modac-openapi.yml

DERIVED

Cancer Gov R4R Overlay

3 actions · update · cancer-gov-r4r-openapi.yml

DERIVED

Cancer Gov Seer Overlay

2 actions · update · cancer-gov-seer-openapi.yml

DERIVED

Cancer Gov Sitewide Search Overlay

3 actions · update · cancer-gov-sitewide-search-openapi.yml

DERIVED

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Security Posture 2

Authentication, domain security, vulnerability disclosure, and trust-center signals.

Cancer Gov Authentication

apiKey/none · 5 schemes

SECURITY

Cancer Gov Domain Security

TLSv1.3 · HSTS · DNSSEC · DMARC

SECURITY

Agentic Access 1

Recommended x-agentic-access execution contracts for AI agents.

Cancer Gov Agentic Access

231 operations · 76 acting · 30 human-in-the-loop

231 operations · 76 acting

AGENTIC

Resources

Get Started 3

Portal, sign-up, and the first successful call

DeveloperPortal

DeveloperPortal

SignUp

SignUp

Portal

Portal

Documentation 3

Reference material describing how the API behaves

GraphQL

GraphQL

Documentation

Documentation

APIReference

APIReference

Agent Surfaces 4

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess

MCPServer

LLMsTxt

AgentSkill

Design & Contract 6

Pagination, idempotency, versioning, errors, and events

Components

Conformance

ErrorCatalog

Lifecycle

Conventions

DataModel

Build 5

SDKs, sample code, and the tooling you integrate with

GitHubOrganization

Packages

SDKs

CLI

ToolCrosswalk

Access & Security 2

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Authentication

Authentication

Operate 4

Status, limits, changes, and where to get help

StatusPage

ChangeLog

RateLimits

Support

Commercial 4

Pricing, plans, and the legal terms of use

FinOps

PrivacyPolicy

Plans

TermsOfService

Company 3

The organization behind the API

Website

Website

Blog

Blog

News

News

Other 14

Properties that don't map to a standard resource type

Overlay

Overlay

Overlay

Overlay

Overlay

Overlay

Overlay

CapabilityMap

SyndicationServices

SyndicationServices

DataScience

DataScience

LicensingAndReuse

Overlay

Policies

OpenDataPolicy

Scroll for all 14

Source (apis.yml)

aid: cancer-gov
name: Cancer.gov
url: https://raw.githubusercontent.com/api-evangelist/cancer-gov/refs/heads/main/apis.yml
deliveryModel:
  model: saas
  license_evidence:
    not_product:
    - ncievs/evsrestapi
    - nciocpl/bestbets-api
    - nciocpl/drug-dictionary-api
    - nciocpl/glossary-api
    - nciocpl/r4r-api
  open_source: unknown
  commercial: true
  callable_host: true
  label: Hosted service · you call their endpoint
  confidence: low
  source:
  - openapi
  - pricing
  - repository-not-product
  generated: '2026-09-25'
  method: derived
accessModel:
  pricing: free
  onboarding: self-serve
  trial: false
  try_now: true
  public: false
  gated: none
  gated_source:
  - onboarding
  label: Free · Self-serve signup
  confidence: high
  source:
  - plans
  - authentication
  - rate-limits
  - security
  generated: '2026-11-02'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/cancer-gov.png
type: Index
x-docs-platform: mkdocs
x-docs-platform-confidence: medium
x-docs-platform-checked: 2026-09-21
tags:
- Cancer
- Federal Government
- Healthcare
- Research
- Clinical Trials
- Genomics
- Open Data
- Disease Surveillance
tags_raw:
- Cancer
- Federal Government
- Healthcare
- Research
- Clinical Trials
- Genomics
- Open Data
- Federal-Government
- Disease Surveillance
access: Open
created: '2024-07-02'
modified: '2026-09-05'
position: Producing
specificationVersion: '0.23'
description: Cancer.gov is the web presence of the National Cancer Institute (NCI), the U.S. federal government's principal
  agency for cancer research and training. NCI and its partner programs expose a rich set of open APIs covering cancer clinical
  trials, genomic data, cancer-incidence surveillance, research data and models, terminology and vocabularies, and PDQ content
  — giving researchers, advocacy groups, clinicians, and application developers programmatic access to authoritative cancer
  data and content.
apis:
- aid: cancer-gov:clinical-trials-api
  name: NCI Clinical Trials Search API
  description: RESTful API that lets developers build applications, search tools, and digital platforms over NCI-supported
    cancer clinical trials data sourced from NCI's Clinical Trials Reporting Program (CTRP). The same API powers NCI's public
    Clinical Trials Search. Developers register for a free API key through the CTS Developer Accounts portal.
  humanURL: https://clinicaltrialsapi.cancer.gov/
  baseURL: https://clinicaltrialsapi.cancer.gov/api/v2
  tags:
  - Clinical Trials
  - CTRP
  - Research
  properties:
  - type: Documentation
    url: https://clinicaltrialsapi.cancer.gov/
  - type: Signup
    url: https://clinicaltrialsapi.cancer.gov/
  - type: ParentPage
    url: https://www.cancer.gov/syndication/api
  - type: Support
    url: mailto:ctrp_support@mail.nih.gov
  - type: SDKs
    url: packages/cancer-gov-packages.yml
- aid: cancer-gov:gdc-api
  name: NCI Genomic Data Commons (GDC) API
  description: The external-facing REST interface for the NCI Genomic Data Commons. Drives the GDC Data Portal and GDC Submission
    Portal and is open for programmatic access. Provides query, download, and submission endpoints for cancer genomics datasets
    including TCGA, TARGET, CPTAC, and other NCI-funded genomic programs.
  humanURL: https://gdc.cancer.gov/developers/gdc-application-programming-interface-api
  baseURL: https://api.gdc.cancer.gov
  tags:
  - Genomics
  - TCGA
  - Research Data
  properties:
  - type: Documentation
    url: https://docs.gdc.cancer.gov/API/Users_Guide/Getting_Started/
  - type: Reference
    url: https://docs.gdc.cancer.gov/Encyclopedia/pages/REST_API/
  - type: Portal
    url: https://portal.gdc.cancer.gov/
  - type: GraphQL
    url: graphql/cancer-gov-gdc.graphql
  - type: ChangeLog
    url: changelog/cancer-gov-changelog.yml
  - type: StatusPage
    url: https://api.gdc.cancer.gov/status
  - type: CLI
    url: cli/cancer-gov-cli.yml
  - type: Support
    url: https://gdc.cancer.gov/support
  - type: GitHubOrganization
    url: https://github.com/NCI-GDC
  - type: APIReference
    url: https://docs.gdc.cancer.gov/API/Release_Notes/API_Release_Notes/
- aid: cancer-gov:syndication-services
  name: NCI Content Syndication Services
  description: A suite of syndicated content channels — RSS feeds, the NCI Dictionary Widget, and syndicated publication content
    — that partner sites and health platforms can embed to deliver authoritative cancer content sourced from cancer.gov.
  humanURL: https://www.cancer.gov/syndication
  tags:
  - Syndication
  - Content
  - Widgets
  - RSS
  properties:
  - type: Documentation
    url: https://www.cancer.gov/syndication
- aid: cancer-gov:cancer-gov-diseases-api
  name: Cancer.gov Diseases API
  description: The Diseases API from Cancer.gov — 1 operation(s) for diseases.
  humanURL: https://clinicaltrialsapi.cancer.gov/
  baseURL: https://clinicaltrialsapi.cancer.gov/api/v2
  tags:
  - Diseases
  properties:
  - type: OpenAPI
    url: openapi/cancer-gov-diseases-api-openapi.yml
- aid: cancer-gov:cancer-gov-interventions-api
  name: Cancer.gov Interventions API
  description: The Interventions API from Cancer.gov — 1 operation(s) for interventions.
  humanURL: https://clinicaltrialsapi.cancer.gov/
  baseURL: https://clinicaltrialsapi.cancer.gov/api/v2
  tags:
  - Interventions
  properties:
  - type: OpenAPI
    url: openapi/cancer-gov-interventions-api-openapi.yml
- aid: cancer-gov:cancer-gov-terms-api
  name: Cancer.gov Terms API
  description: The Terms API from Cancer.gov — 1 operation(s) for terms.
  humanURL: https://clinicaltrialsapi.cancer.gov/
  baseURL: https://clinicaltrialsapi.cancer.gov/api/v2
  tags:
  - Terms
  properties:
  - type: OpenAPI
    url: openapi/cancer-gov-terms-api-openapi.yml
- aid: cancer-gov:cancer-gov-trials-api
  name: Cancer.gov Trials API
  description: The Trials API from Cancer.gov — 2 operation(s) for trials.
  humanURL: https://clinicaltrialsapi.cancer.gov/
  baseURL: https://clinicaltrialsapi.cancer.gov/api/v2
  tags:
  - Trials
  properties:
  - type: OpenAPI
    url: openapi/cancer-gov-trials-api-openapi.yml
- aid: cancer-gov:cancer-gov-application-version-endpoint-api
  name: Cancer.gov Application version endpoint API
  description: The Application version endpoint API from Cancer.gov — 1 operation(s) for application version endpoint.
  humanURL: https://clinicaltrialsapi.cancer.gov/
  baseURL: https://clinicaltrialsapi.cancer.gov/api/v2
  tags:
  - Application version endpoint
  properties:
  - type: OpenAPI
    url: openapi/cancer-gov-application-version-endpoint-api-openapi.yml
  - type: Documentation
    url: https://api.seer.cancer.gov/docs
  - type: Portal
    url: https://api.seer.cancer.gov/
  - type: TermsOfService
    url: https://api.seer.cancer.gov/terms
  - type: RateLimits
    url: rate-limits/cancer-gov-rate-limits.yml
  - type: APIReference
    url: https://api.seer.cancer.gov/docs
  - type: Documentation
    url: https://modac.cancer.gov/swagger-ui/4.14.0/index.html
  - type: Portal
    url: https://modac.cancer.gov/
  - type: Documentation
    url: https://evs.nci.nih.gov/
  - type: Explorer
    url: https://evsexplore.semantics.cancer.gov/
  - type: WhitePaper
    url: https://evs.nci.nih.gov/ftp1/NCI_Metathesaurus/EVS%20Metathesaurus%20White%20Paper.pdf
  - type: APIReference
    url: https://api-evsrest.nci.nih.gov/swagger-ui/index.html
  - type: SourceCode
    url: https://github.com/NCIEVS/evsrestapi
  - type: TermsOfService
    url: https://evs.nci.nih.gov/ftp1/NCI_Thesaurus/ThesaurusTermsofUse.htm
  - type: SourceCode
    url: https://github.com/NCIOCPL/glossary-api
  - type: Documentation
    url: https://webapis.cancer.gov/glossary/v1/
  - type: SourceCode
    url: https://github.com/NCIOCPL/drug-dictionary-api
  - type: Documentation
    url: https://webapis.cancer.gov/drugdictionary/v1/
  - type: SourceCode
    url: https://github.com/NCIOCPL/sitewide-search-api
  - type: SourceCode
    url: https://github.com/NCIOCPL/bestbets-api
  - type: SourceCode
    url: https://github.com/NCIOCPL/r4r-api
- aid: cancer-gov:cancer-gov-asset-details-controller-api
  name: Cancer.gov Asset Details Controller API
  description: The asset-details-controller API from Cancer.gov — 1 operation(s) for asset-details-controller.
  humanURL: https://clinicaltrialsapi.cancer.gov/
  baseURL: https://clinicaltrialsapi.cancer.gov/api/v2
  tags:
  - asset-details-controller
  properties:
  - type: OpenAPI
    url: openapi/cancer-gov-asset-details-controller-api-openapi.yml
  - type: Documentation
    url: https://api.seer.cancer.gov/docs
  - type: Portal
    url: https://api.seer.cancer.gov/
  - type: TermsOfService
    url: https://api.seer.cancer.gov/terms
  - type: RateLimits
    url: rate-limits/cancer-gov-rate-limits.yml
  - type: APIReference
    url: https://api.seer.cancer.gov/docs
  - type: Documentation
    url: https://modac.cancer.gov/swagger-ui/4.14.0/index.html
  - type: Portal
    url: https://modac.cancer.gov/
  - type: Documentation
    url: https://evs.nci.nih.gov/
  - type: Explorer
    url: https://evsexplore.semantics.cancer.gov/
  - type: WhitePaper
    url: https://evs.nci.nih.gov/ftp1/NCI_Metathesaurus/EVS%20Metathesaurus%20White%20Paper.pdf
  - type: APIReference
    url: https://api-evsrest.nci.nih.gov/swagger-ui/index.html
  - type: SourceCode
    url: https://github.com/NCIEVS/evsrestapi
  - type: TermsOfService
    url: https://evs.nci.nih.gov/ftp1/NCI_Thesaurus/ThesaurusTermsofUse.htm
  - type: SourceCode
    url: https://github.com/NCIOCPL/glossary-api
  - type: Documentation
    url: https://webapis.cancer.gov/glossary/v1/
  - type: SourceCode
    url: https://github.com/NCIOCPL/drug-dictionary-api
  - type: Documentation
    url: https://webapis.cancer.gov/drugdictionary/v1/
  - type: SourceCode
    url: https://github.com/NCIOCPL/sitewide-search-api
  - type: SourceCode
    url: https://github.com/NCIOCPL/bestbets-api
  - type: SourceCode
    url: https://github.com/NCIOCPL/r4r-api
- aid: cancer-gov:cancer-gov-autosuggest-api
  name: Cancer.gov Autosuggest API
  description: The Autosuggest API from Cancer.gov — 4 operation(s) for autosuggest.
  humanURL: https://clinicaltrialsapi.cancer.gov/
  baseURL: https://clinicaltrialsapi.cancer.gov/api/v2
  tags:
  - Autosuggest
  properties:
  - type: OpenAPI
    url: openapi/cancer-gov-autosuggest-api-openapi.yml
  - type: Documentation
    url: https://api.seer.cancer.gov/docs
  - type: Portal
    url: https://api.seer.cancer.gov/
  - type: TermsOfService
    url: https://api.seer.cancer.gov/terms
  - type: RateLimits
    url: rate-limits/cancer-gov-rate-limits.yml
  - type: APIReference
    url: https://api.seer.cancer.gov/docs
  - type: Documentation
    url: https://modac.cancer.gov/swagger-ui/4.14.0/index.html
  - type: Portal
    url: https://modac.cancer.gov/
  - type: Documentation
    url: https://evs.nci.nih.gov/
  - type: Explorer
    url: https://evsexplore.semantics.cancer.gov/
  - type: WhitePaper
    url: https://evs.nci.nih.gov/ftp1/NCI_Metathesaurus/EVS%20Metathesaurus%20White%20Paper.pdf
  - type: APIReference
    url: https://api-evsrest.nci.nih.gov/swagger-ui/index.html
  - type: SourceCode
    url: https://github.com/NCIEVS/evsrestapi
  - type: TermsOfService
    url: https://evs.nci.nih.gov/ftp1/NCI_Thesaurus/ThesaurusTermsofUse.htm
  - type: SourceCode
    url: https://github.com/NCIOCPL/glossary-api
  - type: Documentation
    url: https://webapis.cancer.gov/glossary/v1/
  - type: SourceCode
    url: https://github.com/NCIOCPL/drug-dictionary-api
  - type: Documentation
    url: https://webapis.cancer.gov/drugdictionary/v1/
  - type: SourceCode
    url: https://github.com/NCIOCPL/sitewide-search-api
  - type: SourceCode
    url: https://github.com/NCIOCPL/bestbets-api
  - type: SourceCode
    url: https://github.com/NCIOCPL/r4r-api
- aid: cancer-gov:cancer-gov-concept-endpoints-api
  name: Cancer.gov Concept endpoints API
  description: The Concept endpoints API from Cancer.gov — 21 operation(s) for concept endpoints.
  humanURL: https://clinicaltrialsapi.cancer.gov/
  baseURL: https://clinicaltrialsapi.cancer.gov/api/v2
  tags:
  - Concept endpoints
  properties:
  - type: OpenAPI
    url: openapi/cancer-gov-concept-endpoints-api-openapi.yml
  - type: Documentation
    url: https://api.seer.cancer.gov/docs
  - type: Portal
    url: https://api.seer.cancer.gov/
  - type: TermsOfService
    url: https://api.seer.cancer.gov/terms
  - type: RateLimits
    url: rate-limits/cancer-gov-rate-limits.yml
  - type: APIReference
    url: https://api.seer.cancer.gov/docs
  - type: Documentation
    url: https://modac.cancer.gov/swagger-ui/4.14.0/index.html
  - type: Portal
    url: https://modac.cancer.gov/
  - type: Documentation
    url: https://evs.nci.nih.gov/
  - type: Explorer
    url: https://evsexplore.semantics.cancer.gov/
  - type: WhitePaper
    url: https://evs.nci.nih.gov/ftp1/NCI_Metathesaurus/EVS%20Metathesaurus%20White%20Paper.pdf
  - type: APIReference
    url: https://api-evsrest.nci.nih.gov/swagger-ui/index.html
  - type: SourceCode
    url: https://github.com/NCIEVS/evsrestapi
  - type: TermsOfService
    url: https://evs.nci.nih.gov/ftp1/NCI_Thesaurus/ThesaurusTermsofUse.htm
  - type: SourceCode
    url: https://github.com/NCIOCPL/glossary-api
  - type: Documentation
    url: https://webapis.cancer.gov/glossary/v1/
  - type: SourceCode
    url: https://github.com/NCIOCPL/drug-dictionary-api
  - type: Documentation
    url: https://webapis.cancer.gov/drugdictionary/v1/
  - type: SourceCode
    url: https://github.com/NCIOCPL/sitewide-search-api
  - type: SourceCode
    url: https://github.com/NCIOCPL/bestbets-api
  - type: SourceCode
    url: https://github.com/NCIOCPL/r4r-api
- aid: cancer-gov:cancer-gov-delete-collection-controller-api
  name: Cancer.gov Delete Collection Controller API
  description: The delete-collection-controller API from Cancer.gov — 1 operation(s) for delete-collection-controller.
  humanURL: https://clinicaltrialsapi.cancer.gov/
  baseURL: https://clinicaltrialsapi.cancer.gov/api/v2
  tags:
  - delete-collection-controller
  properties:
  - type: OpenAPI
    url: openapi/cancer-gov-delete-collection-controller-api-openapi.yml
  - type: Documentation
    url: https://api.seer.cancer.gov/docs
  - type: Portal
    url: https://api.seer.cancer.gov/
  - type: TermsOfService
    url: https://api.seer.cancer.gov/terms
  - type: RateLimits
    url: rate-limits/cancer-gov-rate-limits.yml
  - type: APIReference
    url: https://api.seer.cancer.gov/docs
  - type: Documentation
    url: https://modac.cancer.gov/swagger-ui/4.14.0/index.html
  - type: Portal
    url: https://modac.cancer.gov/
  - type: Documentation
    url: https://evs.nci.nih.gov/
  - type: Explorer
    url: https://evsexplore.semantics.cancer.gov/
  - type: WhitePaper
    url: https://evs.nci.nih.gov/ftp1/NCI_Metathesaurus/EVS%20Metathesaurus%20White%20Paper.pdf
  - type: APIReference
    url: https://api-evsrest.nci.nih.gov/swagger-ui/index.html
  - type: SourceCode
    url: https://github.com/NCIEVS/evsrestapi
  - type: TermsOfService
    url: https://evs.nci.nih.gov/ftp1/NCI_Thesaurus/ThesaurusTermsofUse.htm
  - type: SourceCode
    url: https://github.com/NCIOCPL/glossary-api
  - type: Documentation
    url: https://webapis.cancer.gov/glossary/v1/
  - type: SourceCode
    url: https://github.com/NCIOCPL/drug-dictionary-api
  - type: Documentation
    url: https://webapis.cancer.gov/drugdictionary/v1/
  - type: SourceCode
    url: https://github.com/NCIOCPL/sitewide-search-api
  - type: SourceCode
    url: https://github.com/NCIOCPL/bestbets-api
  - type: SourceCode
    url: https://github.com/NCIOCPL/r4r-api
- aid: cancer-gov:cancer-gov-delete-data-file-controller-api
  name: Cancer.gov Delete Data File Controller API
  description: The delete-data-file-controller API from Cancer.gov — 1 operation(s) for delete-data-file-controller.
  humanURL: https://clinicaltrialsapi.cancer.gov/
  baseURL: https://clinicaltrialsapi.cancer.gov/api/v2
  tags:
  - delete-data-file-controller
  properties:
  - type: OpenAPI
    url: openapi/cancer-gov-delete-data-file-controller-api-openapi.yml
  - type: Documentation
    url: https://api.seer.cancer.gov/docs
  - type: Portal
    url: https://api.seer.cancer.gov/
  - type: TermsOfService
    url: https://api.seer.cancer.gov/terms
  - type: RateLimits
    url: rate-limits/cancer-gov-rate-limits.yml
  - type: APIReference
    url: https://api.seer.cancer.gov/docs
  - type: Documentation
    url: https://modac.cancer.gov/swagger-ui/4.14.0/index.html
  - type: Portal
    url: https://modac.cancer.gov/
  - type: Documentation
    url: https://evs.nci.nih.gov/
  - type: Explorer
    url: https://evsexplore.semantics.cancer.gov/
  - type: WhitePaper
    url: https://evs.nci.nih.gov/ftp1/NCI_Metathesaurus/EVS%20Metathesaurus%20White%20Paper.pdf
  - type: APIReference
    url: https://api-evsrest.nci.nih.gov/swagger-ui/index.html
  - type: SourceCode
    url: https://github.com/NCIEVS/evsrestapi
  - type: TermsOfService
    url: https://evs.nci.nih.gov/ftp1/NCI_Thesaurus/ThesaurusTermsofUse.htm
  - type: SourceCode
    url: https://github.com/NCIOCPL/glossary-api
  - type: Documentation
    url: https://webapis.cancer.gov/glossary/v1/
  - type: SourceCode
    url: https://github.com/NCIOCPL/drug-dictionary-api
  - type: Documentation
    url: https://webapis.cancer.gov/drugdictionary/v1/
  - type: SourceCode
    url: https://github.com/NCIOCPL/sitewide-search-api
  - type: SourceCode
    url: https://github.com/NCIOCPL/bestbets-api
  - type: SourceCode
    url: https://github.com/NCIOCPL/r4r-api
- aid: cancer-gov:cancer-gov-delete-predictions-controller-api
  name: Cancer.gov Delete Predictions Controller API
  description: The delete-predictions-controller API from Cancer.gov — 1 operation(s) for delete-predictions-controller.
  humanURL: https://clinicaltrialsapi.cancer.gov/
  baseURL: https://clinicaltrialsapi.cancer.gov/api/v2
  tags:
  - delete-predictions-controller
  properties:
  - type: OpenAPI
    url: openapi/cancer-gov-delete-predictions-controller-api-openapi.yml
  - type: Documentation
    url: https://api.seer.cancer.gov/docs
  - type: Portal
    url: https://api.seer.cancer.gov/
  - type: TermsOfService
    url: https://api.seer.cancer.gov/terms
  - type: RateLimits
    url: rate-limits/cancer-gov-rate-limits.yml
  - type: APIReference
    url: https://api.seer.cancer.gov/docs
  - type: Documentation
    url: https://modac.cancer.gov/swagger-ui/4.14.0/index.html
  - type: Portal
    url: https://modac.cancer.gov/
  - type: Documentation
    url: https://evs.nci.nih.gov/
  - type: Explorer
    url: https://evsexplore.semantics.cancer.gov/
  - type: WhitePaper
    url: https://evs.nci.nih.gov/ftp1/NCI_Metathesaurus/EVS%20Metathesaurus%20White%20Paper.pdf
  - type: APIReference
    url: https://api-evsrest.nci.nih.gov/swagger-ui/index.html
  - type: SourceCode
    url: https://github.com/NCIEVS/evsrestapi
  - type: TermsOfService
    url: https://evs.nci.nih.gov/ftp1/NCI_Thesaurus/ThesaurusTermsofUse.htm
  - type: SourceCode
    url: https://github.com/NCIOCPL/glossary-api
  - type: Documentation
    url: https://webapis.cancer.gov/glossary/v1/
  - type: SourceCode
    url: https://github.com/NCIOCPL/drug-dictionary-api
  - type: Documentation
    url: https://webapis.cancer.gov/drugdictionary/v1/
  - type: SourceCode
    url: https://github.com/NCIOCPL/sitewide-search-api
  - type: SourceCode
    url: https://github.com/NCIOCPL/bestbets-api
  - type: SourceCode
    url: https://github.com/NCIOCPL/r4r-api
- aid: cancer-gov:cancer-gov-disease-api
  name: Cancer.gov Disease API
  description: Hematopoietic, lymphoid neoplasms and solid tumor diseases
  humanURL: https://clinicaltrialsapi.cancer.gov/
  baseURL: https://clinicaltrialsapi.cancer.gov/api/v2
  tags:
  - Disease
  tags_raw:
  - disease
  properties:
  - type: OpenAPI
    url: openapi/cancer-gov-disease-api-openapi.yml
  - type: Documentation
    url: https://api.seer.cancer.gov/docs
  - type: Portal
    url: https://api.seer.cancer.gov/
  - type: TermsOfService
    url: https://api.seer.cancer.gov/terms
  - type: RateLimits
    url: rate-limits/cancer-gov-rate-limits.yml
  - type: APIReference
    url: https://api.seer.cancer.gov/docs
  - type: Documentation
    url: https://modac.cancer.gov/swagger-ui/4.14.0/index.html
  - type: Portal
    url: https://modac.cancer.gov/
  - type: Documentation
    url: https://evs.nci.nih.gov/
  - type: Explorer
    url: https://evsexplore.semantics.cancer.gov/
  - type: WhitePaper
    url: https://evs.nci.nih.gov/ftp1/NCI_Metathesaurus/EVS%20Metathesaurus%20White%20Paper.pdf
  - type: APIReference
    url: https://api-evsrest.nci.nih.gov/swagger-ui/index.html
  - type: SourceCode
    url: https://github.com/NCIEVS/evsrestapi
  - type: TermsOfService
    url: https://evs.nci.nih.gov/ftp1/NCI_Thesaurus/ThesaurusTermsofUse.htm
  - type: SourceCode
    url: https://github.com/NCIOCPL/glossary-api
  - type: Documentation
    url: https://webapis.cancer.gov/glossary/v1/
  - type: SourceCode
    url: https://github.com/NCIOCPL/drug-dictionary-api
  - type: Documentation
    url: https://webapis.cancer.gov/drugdictionary/v1/
  - type: SourceCode
    url: https://github.com/NCIOCPL/sitewide-search-api
  - type: SourceCode
    url: https://github.com/NCIOCPL/bestbets-api
  - type: SourceCode
    url: https://github.com/NCIOCPL/r4r-api
- aid: cancer-gov:cancer-gov-doe-collection-controller-api
  name: Cancer.gov Doe Collection Controller API
  description: The doe-collection-controller API from Cancer.gov — 1 operation(s) for doe-collection-controller.
  humanURL: https://clinicaltrialsapi.cancer.gov/
  baseURL: https://clinicaltrialsapi.cancer.gov/api/v2
  tags:
  - doe-collection-controller
  properties:
  - type: OpenAPI
    url: openapi/cancer-gov-doe-collection-controller-api-openapi.yml
  - type: Documentation
    url: https://api.seer.cancer.gov/docs
  - type: Portal
    url: https://api.seer.cancer.gov/
  - type: TermsOfService
    url: https://api.seer.cancer.gov/terms
  - type: RateLimits
    url: rate-limits/cancer-gov-rate-limits.yml
  - type: APIReference
    url: https://api.seer.cancer.gov/docs
  - type: Documentation
    url: https://modac.cancer.gov/swagger-ui/4.14.0/index.html
  - type: Portal
    url: https://modac.cancer.gov/
  - type: Documentation
    url: https://evs.nci.nih.gov/
  - type: Explorer
    url: https://evsexplore.semantics.cancer.gov/
  - type: WhitePaper
    url: https://evs.nci.nih.gov/ftp1/NCI_Metathesaurus/EVS%20Metathesaurus%20White%20Paper.pdf
  - type: APIReference
    url: https://api-evsrest.nci.nih.gov/swagger-ui/index.html
  - type: SourceCode
    url: https://github.com/NCIEVS/evsrestapi
  - type: TermsOfService
    url: https://evs.nci.nih.gov/ftp1/NCI_Thesaurus/ThesaurusTermsofUse.htm
  - type: SourceCode
    url: https://github.com/NCIOCPL/glossary-api
  - type: Documentation
    url: https://webapis.cancer.gov/glossary/v1/
  - type: SourceCode
    url: https://github.com/NCIOCPL/drug-dictionary-api
  - type: Documentation
    url: https://webapis.cancer.gov/drugdictionary/v1/
  - type: SourceCode
    url: https://github.com/NCIOCPL/sitewide-search-api
  - type: SourceCode
    url: https://github.com/NCIOCPL/bestbets-api
  - type: SourceCode
    url: https://github.com/NCIOCPL/r4r-api
- aid: cancer-gov:cancer-gov-doe-create-bulk-datafile-controller-api
  name: Cancer.gov Doe Create Bulk Datafile Controller API
  description: The doe-create-bulk-datafile-controller API from Cancer.gov — 1 operation(s) for doe-create-bulk-datafile-controller.
  humanURL: https://clinicaltrialsapi.cancer.gov/
  baseURL: https://clinicaltrialsapi.cancer.gov/api/v2
  tags:
  - doe-create-bulk-datafile-controller
  properties:
  - type: OpenAPI
    url: openapi/cancer-gov-doe-create-bulk-datafile-controller-api-openapi.yml
  - type: Documentation
    url: https://api.seer.cancer.gov/docs
  - type: Portal
    url: https://api.seer.cancer.gov/
  - type: TermsOfService
    url: https://api.seer.cancer.gov/terms
  - type: RateLimits
    url: rate-limits/cancer-gov-rate-limits.yml
  - type: APIReference
    url: https://api.seer.cancer.gov/docs
  - type: Documentation
    url: https://modac.cancer.gov/swagger-ui/4.14.0/index.html
  - type: Portal
    url: https://modac.cancer.gov/
  - type: Documentation
    url: https://evs.nci.nih.gov/
  - type: Explorer
    url: https://evsexplore.semantics.cancer.gov/
  - type: WhitePaper
    url: https://evs.nci.nih.gov/ftp1/NCI_Metathesaurus/EVS%20Metathesaurus%20White%20Paper.pdf
  - type: APIReference
    url: https://api-evsrest.nci.nih.gov/swagger-ui/index.html
  - type: SourceCode
    url: https://github.com/NCIEVS/evsrestapi
  - type: TermsOfService
    url: https://evs.nci.nih.gov/ftp1/NCI_Thesaurus/ThesaurusTermsofUse.htm
  - type: SourceCode
    url: https://github.com/NCIOCPL/glossary-api
  - type: Documentation
    url: https://webapis.cancer.gov/glossary/v1/
  - type: SourceCode
    url: https://github.com/NCIOCPL/drug-dictionary-api
  - type: Documentation
    url: https://webapis.cancer.gov/drugdictionary/v1/
  - type: SourceCode
    url: https://github.com/NCIOCPL/sitewide-search-api
  - type: SourceCode
    url: https://github.com/NCIOCPL/bestbets-api
  - type: SourceCode
    url: https://github.com/NCIOCPL/r4r-api
- aid: cancer-gov:cancer-gov-doe-create-collection-controller-api
  name: Cancer.gov Doe Create Collection Controller API
  description: The doe-create-collection-controller API from Cancer.gov — 1 operation(s) for doe-create-collection-controller.
  humanURL: https://clinicaltrialsapi.cancer.gov/
  baseURL: https://clinicaltrialsapi.cancer.gov/api/v2
  tags:
  - doe-create-collection-controller
  properties:
  - type: OpenAPI
    url: openapi/cancer-gov-doe-create-collection-controller-api-openapi.yml
  - type: Documentation
    url: https://api.seer.cancer.gov/docs
  - type: Portal
    url: https://api.seer.cancer.gov/
  - type: TermsOfService
    url: https://api.seer.cancer.gov/terms
  - type: RateLimits
    url: rate-limits/cancer-gov-rate-limits.yml
  - type: APIReference
    url: https://api.seer.cancer.gov/docs
  - type: Documentation
    url: https://modac.cancer.gov/swagger-ui/4.14.0/index.html
  - type: Portal
    url: https://modac.cancer.gov/
  - type: Documentation
    url: https://evs.nci.nih.gov/
  - type: Explorer
    url: https://evsexplore.semantics.cancer.gov/
  - type: WhitePaper
    url: https://evs.nci.nih.gov/ftp1/NCI_Metathesaurus/EVS%20Metathesaurus%20White%20Paper.pdf
  - type: APIReference
    url: https://api-evsrest.nci.nih.gov/swagger-ui/index.html
  - type: SourceCode
    url: https://github.com/NCIEVS/evsrestapi
  - type: TermsOfService
    url: https://evs.nci.nih.gov/ftp1/NCI_Thesaurus/ThesaurusTermsofUse.htm
  - type: SourceCode
    url: https://github.com/NCIOCPL/glossary-api
  - type: Documentation
    url: https://webapis.cancer.gov/glossary/v1/
  - type: SourceCode
    url: https://github.com/NCIOCPL/drug-dictionary-api
  - type: Documentation
    url: https://webapis.cancer.gov/drugdictionary/v1/
  - type: SourceCode
    url: https://github.com/NCIOCPL/sitewide-search-api
  - type: SourceCode
    url: https://github.com/NCIOCPL/bestbets-api
  - type: SourceCode
    url: https://github.com/NCIOCPL/r4r-api
- aid: cancer-gov:cancer-gov-doe-create-datafile-controller-api
  name: Cancer.gov Doe Create Datafile Controller API
  description: The doe-create-datafile-controller API from Cancer.gov — 1 operation(s) for doe-create-datafile-controller.
  humanURL: https://clinicaltrialsapi.cancer.gov/
  baseURL: https://clinicaltrialsapi.cancer.gov/api/v2
  tags:
  - doe-create-datafile-controller
  properties:
  - type: OpenAPI
    url: openapi/cancer-gov-doe-create-datafile-controller-api-openapi.yml
  - type: Documentation
    url: https://api.seer.cancer.gov/docs
  - type: Portal
    url: https://api.seer.cancer.gov/
  - type: TermsOfService
    url: https://api.seer.cancer.gov/terms
  - type: RateLimits
    url: rate-limits/cancer-gov-rate-limits.yml
  - type: APIReference
    url: https://api.seer.cancer.gov/docs
  - type: Documentation
    url: https://modac.cancer.gov/swagger-ui/4.14.0/index.html
  - type: Portal
    url: https://modac.cancer.gov/
  - type: Documentation
    url: https://evs.nci.nih.gov/
  - type: Explorer
    url: https://evsexplore.semantics.cancer.gov/
  - type: WhitePaper
    url: https://evs.nci.nih.gov/ftp1/NCI_Metathesaurus/EVS%20Metathesaurus%20White%20Paper.pdf
  - type: APIReference
    url: https://api-evsrest.nci.nih.gov/swagger-ui/index.html
  - type: SourceCode
    url: https://github.com/NCIEVS/evsrestapi
  - type: TermsOfService
    url: https://evs.nci.nih.gov/ftp1/NCI_Thesaurus/ThesaurusTermsofUse.htm
  - type: SourceCode
    url: https://github.com/NCIOCPL/glossary-api
  - type: Documentation
    url: https://webapis.cancer.gov/glossary/v1/
  - type: SourceCode
    url: https://github.com/NCIOCPL/drug-dictionary-api
  - type: Documentation
    url: https://webapis.cancer.gov/drugdictionary/v1/
  - type: SourceCode
    url: https://github.com/NCIOCPL/sitewide-search-api
  - type: SourceCode
    url: https://github.com/NCIOCPL/bestbets-api
  - type: SourceCode
    url: https://github.com/NCIOCPL/r4r-api
- aid: cancer-gov:cancer-gov-doe-download-controller-api
  name: Cancer.gov Doe Download Controller API
  description: The doe-download-controller API from Cancer.gov — 1 operation(s) for doe-download-controller.
  humanURL: https://clinicaltrialsapi.cancer.gov/
  baseURL: https://clinicaltrialsapi.cancer.gov/api/v2
  tags:
  - doe-download-controller
  properties:
  - type: OpenAPI
    url: openapi/cancer-gov-doe-download-controller-api-openapi.yml
  - type: Documentation
    url: https://api.seer.cancer.gov/docs
  - type: Portal
    url: https://api.seer.cancer.gov/
  - type: TermsOfService
    url: https://api.seer.cancer.gov/terms
  - type: RateLimits
    url: rate-limits/cancer-gov-rate-limits.yml
  - type: APIReference
    url: https://api.seer.cancer.gov/docs
  - type: Documentation
    url: https://modac.cancer.gov/swagger-ui/4.14.0/index.html
  - type: Portal
    url: https://modac.cancer.gov/
  - type: Documentation
    url: https://evs.nci.nih.gov/
  - type: Explorer
    url: https://evsexplore.semantics.cancer.gov/
  - type: WhitePaper
    url: https://evs.nci.nih.gov/ftp1/NCI_Metathesaurus/EVS%20Metathesaurus%20White%20Paper.pdf
  - type: APIReference
    url: https://api-evsrest.nci.nih.gov/swagger-ui/index.html
  - type: SourceCode
    url: https://github.com/NCIEVS/evsrestapi
  - type: TermsOfService
    url: https://evs.nci.nih.gov/ftp1/NCI_Thesaurus/ThesaurusTermsofUse.htm
  - type: SourceCode
    url: https://github.com/NCIOCPL/glossary-api
  - type: Documentation
    url: https://webapis.cancer.gov/glossary/v1/
  - type: SourceCode
    url: https://github.com/NCIOCPL/drug-dictionary-api
  - type: Documentation
    url: https://webapis.cancer.gov/drugdictionary/v1/
  - type: SourceCode
    url: https://github.com/NCIOCPL/sitewide-search-api
  - type: SourceCode
    url: https://github.com/NCIOCPL/bestbets-api
  - type: SourceCode
    url: https://github.com/NCIOCPL/r4r-api
- aid: cancer-gov:cancer-gov-doe-download-files-controller-api
  name: Cancer.gov Doe Download Files Controller API
  description: The doe-download-files-controller API from Cancer.gov — 1 operation(s) for doe-download-files-controller.
  humanURL: https://clinicaltrialsapi.cancer.gov/
  baseURL: https://clinicaltrialsapi.cancer.gov/api/v2
  tags:
  - doe-download-files-controller
  properties:
  - type: OpenAPI
    url: openapi/cancer-gov-doe-download-files-controller-api-openapi.yml
  - type: Documentation
    url: https://api.seer.cancer.gov/docs
  - type: Portal
    url: https://api.seer.cancer.gov/
  - type: TermsOfService
    url: https://api.seer.cancer.gov/terms
  - type: RateLimits
    url: rate-limits/cancer-gov-rate-limits.yml
  - type: APIReference
    url: https://api.seer.cancer.gov/docs
  - type: Documentation
    url: https://modac.cancer.gov/swagger-ui/4.14.0/index.html
  - type: Portal
    url: https://modac.cancer.gov/
  - type: Documentation
    url: https://evs.nci.nih.gov/
  - type: Explorer
    url: https://evsexplore.semantics.cancer.gov/
  - type: WhitePaper
    url: https://evs.nci.nih.gov/ftp1/NCI_Metathesaurus/EVS%20Metathesaurus%20White%20Paper.pdf
  - type: APIReference
    url: https://api-evsrest.nci.nih.gov/swagger-ui/index.html
  - type: SourceCode
    url: https://github.com/NCIEVS/evsrestapi


# --- truncated at 32 KB (85 KB total) ---
# Full source: https://artifacts.apis.io/cancer-gov/apis.yml

Cancer.gov API — frequently asked questions

Does Cancer.gov have an API?

Yes. APIs.io lists 48 APIs from Cancer.gov, including NCI Clinical Trials Search API, NCI Genomic Data Commons (GDC) API and NCI Content Syndication Services, and 45 more.

Is there an OpenAPI specification for the Cancer.gov API?

Yes. APIs.io indexes 45 OpenAPI specifications for Cancer.gov, each linked for download from this page.

How do I authenticate with the Cancer.gov API?

Cancer.gov uses bearer-token authentication (apiKey/none · 5 schemes). The details are profiled on APIs.io as Cancer Gov Authentication.

How much does the Cancer.gov API cost?

APIs.io lists 1 pricing plan for Cancer.gov, with each plan's price, limits and inclusions under Pricing Plans on this page.

Does Cancer.gov have an MCP server?

Yes. APIs.io lists 1 MCP server for Cancer.gov: MCP server; 143 tools listed. A candidate, not confirmed as published by the provider.

Is the Cancer.gov API ready for AI agents?

Cancer.gov has a Kin Score of 50.5 out of 100 (developing) and an Agent Readiness score of 31.1 (agent-ready), scored by API Evangelist on 2026-11-02.

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