๐ Paperclip is a Model Context Protocol (MCP) server that enables searching and retrieving research papers from Arxiv, the Open Science Framework (OSF) API, and OpenAlex.
Important the server is no longer hosted on
paperclip.matsjfunke.com/mcpyou need to host it yourself! For that you can fork this repo and use thedeploy.ymlGithub Action to host on a simple VPS (my simple VPS setup guide)
Setup the paperclip MCP server in your host via the server url no authentication is needed.
Example JSON for cursor:
{
"mcpServers": {
"paperclip": {
"url": "https://<your-server-domain.com>/mcp"
}
}
}Here are examples of Paperclip integrated with popular MCP clients:
Cursor IDE:
Langdock:
- AfricArXiv
- AgriXiv
- ArabXiv
- arXiv
- BioHackrXiv
- BodoArXiv
- COP Preprints
- EarthArXiv
- EcoEvoRxiv
- ECSarxiv
- EdArXiv
- EngrXiv
- FocusArchive
- Frenxiv
- INArxiv
- IndiaRxiv
- Law Archive
- LawArXiv
- LISSA
- LiveData
- MarXiv
- MediArXiv
- MetaArXiv
- MindRxiv
- NewAddictionSx
- NutriXiv
- OpenAlex
- OSF Preprints
- PaleoRxiv
- PsyArXiv
- SocArXiv
- SportRxiv
- Thesis Commons
- bioRxiv & medRxiv both share the underlying api structure (https://api.biorxiv.org/pubs/[server]/[interval]/[cursor] where [server] can be "biorxiv" or "medrxiv")
- ChemRxiv
- hal open science
- research square
- osf preprints
- preprints.org
- science open
- SSRN
- synthical
Interested in contributing to Paperclip? Check out our Contributing Guide for development setup instructions, testing procedures, and more!

