Upsilon — AI Operator Measurement Engine
Upsilon measurement engine with 25 local tools and SigRank proof access via the sigrank package.
Install
npmstdio
npx -y sigrank Client config (Claude Desktop, Cursor, Windsurf and most MCP clients)
{
"mcpServers": {
"io-github-sunrisesillneversee-sigrank-mcp": {
"command": "npx",
"args": [
"-y",
"sigrank"
]
}
}
}Source: official MCP Registry record · registry name io.github.SunrisesIllNeverSee/sigrank-mcp · published 2026-09-01 · updated 2026-09-01. Not an endorsement; review the code before connecting it to anything sensitive.