# Evidencing

> Ask a clinical or health research question and get an answer based on studies from PubMed, Europe PMC and OpenAlex, with every claim cited and the studies’ consensus. Free, no sign-up. For healthcare professionals, researchers and health sciences students. We search PubMed, Europe PMC and OpenAlex, read the most relevant studies and answer only from what they say.

Evidencing (https://evidencing.app/) is the free public tool of SysRevAI (https://sysrevai.com), the open-source (AGPL-3.0) platform for AI-assisted systematic reviews in health. Anyone can ask without an account: the first question shows the full analysis (strength of evidence of each finding, every study with its design, a quote checked against its abstract, and the search strategy); later ones show the conclusion, certainty, agreement between studies and a consensus meter, and the full analysis is in SysRevAI (free 30-day trial). It is not medical advice.

## Key pages

- Home, where questions are asked: [Català](https://evidencing.app/) · [Español](https://evidencing.app/?lang=es) · [English](https://evidencing.app/?lang=en) · [Galego](https://evidencing.app/?lang=gl) · [Euskara](https://evidencing.app/?lang=eu) · [Français](https://evidencing.app/?lang=fr)
- [Methodology](https://evidencing.app/metodologia?lang=en): sources, search, study selection, citations, strength of evidence, consensus meter, limitations, privacy
- [SysRevAI](https://sysrevai.com): the full platform (systematic reviews, unlimited Ask the evidence, follow-up questions, deep mode with open-access full text, PDF and Word)
- [Privacy](https://sysrevai.com/privacy) · [Terms](https://sysrevai.com/terms) · [Contact](https://sysrevai.com/contact)

## Facts

- Audience: healthcare professionals, researchers, teachers and health sciences students (Medicine, Nursing, Pharmacy, Physiotherapy, Psychology, Nutrition, Dentistry, Public health).
- Sources: PubMed (MEDLINE), Europe PMC and OpenAlex; titles, abstracts and publication data.
- Languages: questions and answers in Català, Español, English, Galego, Euskara, Français.
- Price: free, no sign-up; 3 questions a day per browser by default. The full analysis of every question is in SysRevAI, free for 30 days without a card.
- Every claim is cited by author and year; citations to studies that were not retrieved are removed; the strength of each finding is scored from 1 to 10, capped by the best study design behind it.
- Privacy: questions are stored anonymously and deleted after 30 days unless moved to a SysRevAI account; only an anonymous hash of the IP is kept; technical cookies only.

## FAQ

### Is it free?

Yes. Your first question shows the full analysis, without signing up; later ones show the conclusion, the certainty and the consensus meter. The full analysis of every question, without limits, is in SysRevAI, free for 30 days with no card.

### Where do the answers come from?

From the abstracts of studies published in PubMed, Europe PMC and OpenAlex. The AI answers only from the studies it finds and cites every claim; citations to studies it did not find are removed.

### Is this medical advice?

No. It summarises the published evidence to help professionals and researchers; it does not replace clinical judgement or seeing a professional.

### What happens to my question?

It is kept anonymously to show you the answer. If you sign up on SysRevAI it moves to your account; otherwise it is deleted after 30 days.

### What is SysRevAI?

An open-source platform for AI-assisted systematic reviews in the health sciences: screening, data extraction, risk of bias, GRADE and PRISMA, plus unlimited Ask the evidence.

### Who is Evidencing for?

For healthcare professionals, researchers, teachers and health sciences students who need to know what research says about a clinical or health question. It searches biomedical databases (PubMed/MEDLINE, Europe PMC and OpenAlex) and is the first step towards a systematic review in SysRevAI.

Full methodology for AI assistants: https://evidencing.app/llms-full.txt