{"server":{"$schema":"https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json","name":"io.github.SunrisesIllNeverSee/sigrank-mcp","description":"Upsilon measurement engine with 25 local tools and SigRank proof access via the sigrank package.","title":"Upsilon — AI Operator Measurement Engine","repository":{"url":"https://github.com/SunrisesIllNeverSee/sigrank-mcp","source":"github"},"version":"1.0.12","websiteUrl":"https://signalaf.com","packages":[{"registryType":"npm","registryBaseUrl":"https://registry.npmjs.org","identifier":"sigrank","version":"1.0.12","transport":{"type":"stdio"}}],"_meta":{"io.modelcontextprotocol.registry/publisher-provided":{"category":"developer-tools","tags":["token-efficiency","leaderboard","ai-agents","telemetry","yield-cascade","coding-metrics"],"tool":"mcp-publisher"}}},"_meta":{"io.modelcontextprotocol.registry/official":{"status":"active","statusChangedAt":"2026-09-01T13:48:41.654334Z","publishedAt":"2026-09-01T13:48:41.654334Z","updatedAt":"2026-09-01T13:48:41.654334Z","isLatest":true}}}