keystone-research.vercel.app
LiveMCP ServerKeystone: What an arXiv paper builds on, disputes and assumes, read verbatim from its LaTeX. No LLM. (text from the Official MCP Registry)
6/6Recent Connection Checks That Worked (With Or Without A Login)
699 msTypical Response Time
3Tools Offered
2025-06-18Protocol Version
81 min agoLast Checked (2026-10-29T13:30:44Z)
NoLogin Required
Servers On This Host
| Address | Name | Status | Recent Checks OK | Response Time | Tools | Last Checked |
|---|---|---|---|---|---|---|
| https://keystone-research.vercel.app/api/mcp | Keystone | Live | 6/6 | 699 ms | 3 | 81 min ago · receipt |
Login-free tools/list. No credentials, never paid. Priced tools only: ≤ 2 unpaid calls to read the payment request. No MCP test purchases. Signed receipts: raw data page · free quick check (JSON)