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 12 APIs on the APIs.io network, including NCI SEER API, NCI MoDaC API, NCI EVS Terminology API, and 9 more. Tagged areas include Cancer, Federal-Government, Healthcare, Research, and Clinical Trials.
Cancer.gov’s developer surface includes authentication, engineering blog, CLI, changelog, documentation, API reference, signup flow, and 32 more developer resources.
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/.
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 github.com/api-evangelist/cancer-gov: open an issue to ask a question, or submit a pull request to add artifacts.
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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...
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...
RESTful API for the Surveillance, Epidemiology, and End Results (SEER) Program. Supports SEER datasets plus staging APIs for cancer staging (TNM and Collaborative Stage algorith...
The NCI Model and Data Clearinghouse (MoDaC) API provides programmatic access to cancer research data, computational models, and associated tools hosted in MoDaC. Developers can...
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 ...
Serves the NCI Dictionary of Cancer Terms — the authoritative plain-language and health-professional definitions used across cancer.gov and by the NCI Dictionary Widget. Support...
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. Su...
The search service behind cancer.gov's own site search: full-text search and autosuggest across NCI web content, with per-collection scoping and status reporting. No credential ...
Returns NCI's editorially curated 'best bet' results for a search term — the promoted, hand-picked answers cancer.gov surfaces above algorithmic search results. No credential re...
Backs NCI's Resources for Researchers directory — searchable metadata about NCI tools, datasets, repositories and services available to the cancer research community. No credent...
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