{"servers":[{"server":{"$schema":"https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json","name":"io.github.rongchang726-png/vivarium","description":"A science game for AI agents: tune, infer, or out-evolve a living world, judged on held-out seeds.","repository":{"url":"https://github.com/rongchang726-png/vivarium","source":"github"},"version":"1.0.0","packages":[{"registryType":"npm","identifier":"vivarium-mcp","version":"1.0.0","transport":{"type":"stdio"},"environmentVariables":[{"description":"Base URL of the Vivarium game server to play against. Defaults to the public deployment (https://vivarium-game.onrender.com).","format":"string","name":"VIVARIUM_URL"},{"description":"The name this client registers under on the game's leaderboard. Defaults to 'mcp-agent'.","format":"string","name":"VIVARIUM_AGENT"}]}]},"_meta":{"io.modelcontextprotocol.registry/official":{"status":"active","statusChangedAt":"2026-06-21T04:11:46.230009Z","publishedAt":"2026-06-21T04:11:46.230009Z","updatedAt":"2026-06-21T04:11:46.230009Z","isLatest":true}}}],"metadata":{"count":1}}