Keystone
by keystone-research.vercel.app in Developer tools
What an arXiv paper builds on, disputes and assumes, read verbatim from its LaTeX. No LLM.
https://keystone-research.vercel.app/api/mcp- Tools
- 3
- open to any client
- Uptime
- 100%
- last 30 days
- Response time
- 403 ms
- 868 ms slowest 5%
- Last check
- Passed
- 2 h ago, next in 5 h
Reliability
Status and outage history · Atom feed · Watch with other listings
How to connect
Add it to any MCP client that supports remote servers.
{
"mcpServers": {
"keystone": {
"type": "http",
"url": "https://keystone-research.vercel.app/api/mcp"
}
}
}3 tools
- search_library
Search 2118 readings taken from 197 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.
Security scan
No findings
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Recent checks
| When | Result | HTTP | Time |
|---|---|---|---|
| 2 h ago | Passed | 200 | 868 ms |
| 12 h ago | Passed | 200 | 850 ms |
| 21 h ago | Passed | 200 | 239 ms |
| 30 h ago | Passed | 200 | 403 ms |