OpenMetaAnalyst
Professional-grade open-source meta-analysis for advanced evidence-based synthesis.

Instantly find legal, free versions of paywalled research papers or request them directly from authors.
Open Access Button (now powered by OA.Works) is a critical piece of the 2026 open science infrastructure, designed to bypass academic paywalls legally. It functions by aggregating metadata from hundreds of thousands of sources, including institutional repositories, preprint servers like arXiv and bioRxiv, and indexed databases such as Unpaywall and CORE. The tool utilizes a sophisticated discovery engine that matches DOIs, PMIDs, or article titles against a global index of legally shared versions. If a free version is not found, the system automates the 'request from author' workflow, facilitating a direct legal exchange of research. For 2026, its technical architecture has evolved to include 'InstantILL' (Instant Inter-Library Loan) capabilities, which allows libraries to integrate the button directly into their discovery layers (EBSCO, Primo, etc.). This reduces institutional costs by prioritizing open-access versions before initiating expensive loan requests. Built on an open-source framework, it provides a RESTful API that enables developers to build high-volume scholarly workflows, ensuring that research accessibility is a foundational utility rather than a luxury.
Simultaneously queries Unpaywall, CORE, Dissemin, and institutional repositories using an asynchronous fetching engine.
Professional-grade open-source meta-analysis for advanced evidence-based synthesis.
Automated citation management and bibliography generation for modern research workflows.
The open-source bibliographic integrity engine for detecting AI-hallucinated citations and paper-mill patterns.
Verified feedback from the global deployment network.
Post queries, share implementation strategies, and help other users.
Uses a verified contact database to find corresponding authors and generates a compliant request for the manuscript.
A middleware solution that plugs into existing library software to check for OA versions before a paid loan is triggered.
Cleans and normalizes malformed DOIs and URL parameters to ensure high accuracy in database matching.
A specialized endpoint that guides researchers through self-archiving in 20 seconds or less.
Entire platform is hosted on GitHub, allowing for community audits and self-hosting of specific modules.
For institutions, calculates the monetary value of content found via OA vs. content purchased via subscriptions.
A student hits a $35 paywall for a single paper needed for a thesis.
Registry Updated:2/7/2026
University library is overspending on Inter-Library Loan (ILL) fees for articles that are actually available for free online.
Researchers find it too difficult to upload their papers to the university's repository (ShareYourPaper).