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Keystone

io.github.Srikarmk/keystone · v0.1.0

What an arXiv paper builds on, disputes and assumes, read verbatim from its LaTeX. No LLM.

Connect Remote server

Terminal
claude mcp add --transport http keystone https://keystone-research.vercel.app/api/mcp
~/.cursor/mcp.json
{
  "mcpServers": {
    "keystone": {
      "url": "https://keystone-research.vercel.app/api/mcp"
    }
  }
}
.vscode/mcp.json
{
  "servers": {
    "keystone": {
      "type": "http",
      "url": "https://keystone-research.vercel.app/api/mcp"
    }
  }
}
Claude Desktop
Settings > Connectors > Add custom connector
URL: https://keystone-research.vercel.app/api/mcp

Tools 3 found in our last check

  • search_library

    Search 2497 readings taken from 234 arXiv papers' LaTeX source: citation stances (adopts, extends, disputes, measures against) and stated assumptions. Matches on the quoted sentence, the cue phrase that decided it, and the work cited. Returns the sentence verbatim with a link to…

  • read_paper

    Everything Keystone reads out of one arXiv paper: what it adopts, extends, disputes and measures against, and the assumptions it states with a citation, its own evidence, or nothing at all. Works for any paper on arXiv that ships LaTeX source — one outside the library is parsed…

  • list_disagreements

    Every sentence in the library where a paper says prior work is wrong, or puts itself beside it to win. Small on purpose — disagreement is rare and concentrated, and the whole set is readable.

Details

Endpointhttps://keystone-research.vercel.app/api/mcp (Streamable HTTP)
First published20 Oct 2026
Last updated20 Oct 2026
Registry nameio.github.Srikarmk/keystone

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