Keystone

io.github.Srikarmk/keystoneVersion 0.1.0

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

Status

Responds902 msNov 14, 2026, 14:42 UTCAnswered our handshake without sign-in.

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Last checked: Nov 14, 2026, 14:42 UTC
Latency: 902 ms
Remotes responding: 1 of 1
Sign-in: No sign-in
Hosting: Hosted outside the EU (detected)
Registry data as of: Nov 14, 2026, 21:12 UTC

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Connect

Streamable HTTP

https://keystone-research.vercel.app/api/mcpResponds902 msNov 14, 2026, 14:42 UTC

No sign-in

Claude Code

claude mcp add --transport http keystone https://keystone-research.vercel.app/api/mcp

Claude Desktop and claude.ai

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Settings > Connectors > Add custom connector
Name: keystone
Remote MCP server URL: https://keystone-research.vercel.app/api/mcp

Cursor

{
  "mcpServers": {
    "keystone": {
      "url": "https://keystone-research.vercel.app/api/mcp"
    }
  }
}

VS Code

code --add-mcp '{"name":"keystone","type":"http","url":"https://keystone-research.vercel.app/api/mcp"}'

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Tools

3 tools

Tools of Keystone
	Description		Read-only	Idempotent	Open world
`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.	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.	Not declared	Not declared	Not declared	Not declared
`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 on demand, which takes a few seconds. Nothing is summarised or inferred; every line is the paper's own.	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 on demand, which takes a few seconds. Nothing is summarised or inferred; every line is the paper's own.	Not declared	Not declared	Not declared	Not declared
`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 the exact line.	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 the exact line.	Not declared	Not declared	Not declared	Not declared

Details

Registry status: Active
Published: Oct 20, 2026
Updated: Oct 20, 2026
Website: https://keystone-research.vercel.app/⁠ (opens in a new tab)
Repository: https://github.com/Srikarmk/Keystone⁠ (opens in a new tab)
Categories: Uncategorized
GDPR: Not declared

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