Powerful and highly extensible command-line based document and bibliography manager.

PyPaperBot is a Python tool for downloading scientific papers using Google Scholar, Crossref, SciHub, and SciDB.

Findpapers: A tool for helping researchers who are looking for related works

I, Librarian - open-source version of a PDF managing SaaS.

Source code and data analyses for the Sci-Hub Coverage Study

⚠️ ARCHIVED ⚠️ Search across and get full text for OA & closed journals

Bibcure helps in boring tasks by keeping your bibfile up to date and normalized...also allows you to easily download all papers inside your bibtex

get the bibtex string given a doi

DOI → PDF resolver with 7-source fallback (Unpaywall, S2, arXiv, PMC, bioRxiv, publisher, Sci-Hub). Multi-agent, zero-deps Python.

Command-line tool to manage bibliography (pdfs + bibtex)

This web app aims to help scientists with their literature review using metadata from OpenAlex (OA), Semantic Scholar (S2) and Crossref (CR) in local citation networks.

Batch-download reference PDFs from a DOI or paper PDF using Crossref and your institutional Edge session.

Fast relational access to openly-available publication data sets

Zotero compatibility layer for papis

Download metadata for all DOIs using the Crossref API

📚 Only Cite what you can verify

Unofficial OpenEvidence MCP server — query OpenEvidence from Claude Code, Codex, and any MCP client through your own logged-in browser tab (no API key). Fire-and-forget asks, a shared relay daemon for concurrent sessions, BibTeX + Crossref citations.

📚🔭 Your personal research radar — an LLM-powered tool that auto-aggregates the latest papers for your keywords across arXiv / Crossref / Semantic Scholar / GitHub / RSS.

Academic Paper Search：面向中文科研用户的 Codex / Claude Code 文献检索 Skill + MCP；跨 CrossRef、PubMed、arXiv、OpenAlex、Europe PMC 检索去重，支持 Semantic Scholar 富化、ClinicalTrials.gov 试验与引用导出。

Citations, BibTeX, and Research