Articles1M+Peer-reviewed
Journals900+Health and life sciences
Coverage2019 onwardsAcross all 900+ journals
Pricing$12 CPM1.92 credits per result
Wiley x Valyu HLS Startup Program. Wiley HLS is available for purchase by eligible startups on a pay-per-use basis at $12 per 1,000 results (1.92 credits per result), and is enabled per organisation. Request access in the platform. Questions about eligibility or the journal list go to contact@valyu.ai.
Why full text matters
An abstract can tell an agent that a paper exists. Full-text retrieval lets it examine what the paper actually says. Wiley HLS can be called while an agent is carrying out a task. Instead of returning only a list of papers, the agent retrieves the evidence relevant to the question, brings it into the workflow and traces each result back to the original publication.Point your stack at Wiley HLS
Name the source, ask a question in natural language and retrieve full-text results with citations. With your API key set:What is included
The journals span oncology, immunology, neuroscience, genetics, cardiology, pharmacology, physiology, psychiatry, ecology and the wider health and life sciences. Representative titles:
This is a subset for orientation. To check whether a specific journal is covered, email contact@valyu.ai.
What you can build
- Drug discovery and target research. Investigate targets, mechanisms, pathways, biomarkers and compounds, compare findings and return cited research briefs.
- Clinical research and evidence workflows. Retrieve the evidence behind a clinical research question and compare findings across studies.
- Evidence synthesis and systematic reviews. Search full text, extract findings, surface conflicting results and keep a citation trail.
- R&D copilots. Put peer-reviewed literature behind internal tools that search, compare and cite across a field.
- Scientific and medical writing. Retrieve supporting literature while drafting and connect claims to their sources.
- Landscape and competitive intelligence. Track a therapeutic area across publications, preprints, patents and scientific data.
Run a full research workflow
Search retrieves the evidence relevant to one query. DeepResearch plans the wider task, searches across sources, cross-references findings and produces a cited report, plus files such as a CSV of the trials it found.Python
Search only Wiley, or blend with open access
Thehls_coverage parameter decides whether a query stays inside the licensed corpus or also draws on the open-access biomedical index in the same call.
cURL

HLS only: every result comes from the licensed Wiley corpus

OA + HLS: the same query blends open-access results with licensed ones
source field says which dataset it came from. A narrow topic can exhaust the licensed corpus before it fills your requested result count, so blended mode is usually the better default for broad scans.
hls_coverage is REST-only for now. The Python and TypeScript SDKs do not accept it yet, so call the endpoint directly when you need blended coverage.What each result contains
Search returns the passages most relevant to a query, not a guarantee of every paper on a topic. Plan an exhaustive review around an explicit search log and validation process, and keep source identifiers next to each passage so readers can check the evidence.
Try it in the playground
No code needed:1
Open the playground with Wiley selected
2
Choose coverage
Under Quick Settings, set HLS Coverage to HLS only or OA + HLS.
3
Run a question
Try
mechanisms of tau propagation in early Alzheimer's disease and click Run. Each result shows its title, source and a content preview, with Copy Citation and View Source.4
Copy the code
Click Show Code Snippets for a ready-to-run request with your settings.
Request access
Request access
Eligible startups request access in the platform. New accounts start with $10 of free credits ($20 with a company email).
Talk to us
Ask about eligibility, the full journal list or using Wiley HLS in your product.
Related
Biotech & Pharma workflows
Target evidence, trial landscapes and lab research, with runnable requests.
Wiley Finance
The licensed finance collection, with the same retrieval model.
Data sources
Every source family, and which need separate access.
Search API reference
Every Search parameter, including
included_sources and hls_coverage.