A side-by-side look at the Arxivsub MCP and Research Papers MCP MCP servers: transport, auth, tools, quality signals, and the config to install either one in Claude, Cursor, Windsurf or VS Code.
Verdict: choose Arxivsub MCP for research work as a local process; choose Research Papers MCP for research. You can also run both side by side in one mcpServers block.
ARXIVSUB_SKILL_KEY.search_papers, find_similar_papers, research_insight.Rows where the two servers differ are marked.
| Spec | R Research Papers MCP | |
|---|---|---|
| Category | Research | Research |
| Quality signal | 55/100 · Good | 39/100 · Fair |
| Install command | Confirmed | Not confirmed yet |
| Transport | Local subprocess (stdio) | — |
| Auth | Not declared | No auth required |
| Pricing | Not declared | Not declared |
| Required env vars | ARXIVSUB_SKILL_KEY | None listed |
| Verified owner | Community listing | Community listing |
| GitHub stars | 0 | — |
| Directory activity | 1 views 0 installs 0 upvotes | 0 views 0 installs 0 upvotes |
| Tools | 5 | Not listed |
| Full listing | View Arxivsub MCP | View Research Papers MCP |
search_papersSearch academic papers from arXiv and major AI/CV/ML/robotics/NLP conferences via arXivSub (semantic + keyword search over a structured, summarized corpus). Use for 'find papers on X', 'latest research about Y', 'recent conference work on Z', or to start a literature review. Returns each paper with a 6-part summary (what it's about, innovations, techniques, datasets, results, limitations), authors + affiliations, pdf_url, and github_url when code is available.find_similar_papersGiven ONE paper you already have (from a prior search result), return the most similar papers from the same corpus — semantic nearest neighbours, each with the full summary and code link. Use for 'more like this', 'related work', 'what else is in this line of work', or to expand a literature review. You can chain it: search -> pick a seed -> find_similar_papers -> repeat on a strong neighbour.research_insightBuild aggregate pivot statistics over the arXivSub corpora — the same engine as the website's Custom Chart. Use for trends, rankings, breakdowns and comparisons: 'how has interest in diffusion models trended', 'top institutions in RL', 'papers per month by keyword', 'avg citations by affiliation'. Returns rows of {dim, breakdown, value} for you to interpret and visualize. Requires Pro or active trial days.library_saveSave (or update) a paper in the user's personal arXivSub library. Use for 'save this', 'bookmark that paper', 'add it to my <X> collection', 'note that ...', 'mark as read'. Idempotent: saving the same paper again updates only the fields you pass and never duplicates. Cannot delete — removals are done on the website.library_listList the user's personal arXivSub library — collections and saved items, optionally filtered. Use for 'what have I saved', 'show my library', 'which papers are in my <name> collection', 'what am I reading'.No tool names declared yet. Check the project README from the listing page.
Paste either block (or both) into your client config, e.g. claude_desktop_config.json or ~/.cursor/mcp.json. We only show a config when the install command is confirmed.
{
"mcpServers": {
"arxivsub-mcp": {
"command": "npx",
"args": [
"-y",
"arxivsub-mcp"
],
"env": {
"ARXIVSUB_SKILL_KEY": "YOUR_ARXIVSUB_SKILL_KEY_HERE"
}
}
}
}
No confirmed install command for Research Papers MCP yet — follow the setup steps linked from its listing page rather than a guessed package name.