Read a paper, see the methodology flaws
Open a study; the side panel scores it against a 45-item appraisal checklist and checks it against retraction and comment registries. Built for doctors and students who read past the abstract
Two layers, on purpose
Registries – verified, no AI
By DOI it checks Crossref for retraction and concern flags, links out to PubPeer and Retraction Watch, and detects trial-registration IDs in the text. These signals come from registries, so they can't be made up
Checklist appraisal
A methodology checklist built from CASP, the JAMA Users' Guides, CONSORT, STROBE, PRISMA, Oxford CEBM and GRADE scores each item with a plain finding and a quote from the paper. It says "unclear" when the text does not let it decide
What it checks
45 items across seven sections:
- Study type & design
- Population & PICO
- Bias & internal validity
- Statistics & results
- Reporting & registration
- Conflicts & integrity
- Applicability
Evigrade Read Pro
Free today with your own Anthropic key. Pro is coming – tell us if you want it
- No API key – we run the analysis for you
- A stronger model, tuned for appraisal
- History of your appraisals and PDF export
- Batch: appraise a whole reading list at once
Privacy
The extension runs in your browser. Appraising a paper sends the page text to the model under your key; registry checks send only the DOI. Nothing goes to an Evigrade server
A reading aid, not a verdict. It cannot detect fabricated data, image manipulation, or errors in the raw dataset. A clean checklist does not mean a paper is correct