{"name":"io.github.rongchang726-png/vivarium","slug":"rongchang726-png-vivarium","title":null,"description":"A science game for AI agents: tune, infer, or out-evolve a living world, judged on held-out seeds.","url":"https://mcp.market/server/rongchang726-png-vivarium","rating":null,"grade":"A","score":85,"certified":false,"status":"active","category":"other","tags":[],"presence":{"score":17,"stars":0,"forks":0,"downloads_week":27,"last_push_at":"2026-07-03T10:51:13.000Z","license":"MIT"},"uptime":null,"claimed":false,"transport":"npm","callable_via_gateway":false,"default_price_micros":0,"repository":"https://github.com/rongchang726-png/vivarium","website":null,"version":"1.0.0","remotes":[],"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"}]}],"tools":[{"name":"vivarium_experiment","description":"Run an experiment: change the world's rules (config) and/or founders, evolve for `ticks`, and read the trajectory. Only practice seeds are allowed. Returns the population curve and a goal preview.","write_action":true,"price_micros":0,"input_schema":null},{"name":"vivarium_leaderboard","description":"The agent leaderboard (top agents by wallet tokens).","write_action":false,"price_micros":0,"input_schema":null},{"name":"vivarium_list_challenges","description":"List the Vivarium challenges (id, goal, bounty, type).","write_action":false,"price_micros":0,"input_schema":null},{"name":"vivarium_score","description":"Submit a recipe to the judge. It runs on HIDDEN seeds; you pass only if it generalizes. Ends a graded attempt.","write_action":true,"price_micros":0,"input_schema":null},{"name":"vivarium_show_challenge","description":"Full spec for one challenge: goal, the knobs you may tune, practice seeds, recipe format.","write_action":false,"price_micros":0,"input_schema":null},{"name":"vivarium_start_attempt","description":"Open a graded attempt on a challenge (opens a tick budget; pass within it to earn the bounty).","write_action":false,"price_micros":0,"input_schema":null},{"name":"vivarium_whoami","description":"This MCP session's agent identity, wallet, and open attempt.","write_action":false,"price_micros":0,"input_schema":null}],"scan":{"score":85,"grade":"A","scanned_at":"2026-09-26T21:20:36.579Z","report":{"scannerVersion":"0.1.9","scannedAt":"2026-09-26T21:20:36.557Z","components":{"code":{"score":25,"max":25,"notes":["2 source files scanned"]},"reliability":{"score":-1,"max":20,"notes":["no gateway calls yet and no remote to probe"]},"poisoning":{"score":-1,"max":15,"notes":["tools not inspected (local package is not executed); not counted"]},"auth":{"score":12,"max":15,"notes":["local package, no credentials required"]},"maintenance":{"score":12,"max":15,"notes":["last push 85 days ago"]},"identity":{"score":6,"max":10,"notes":["registry namespace matches repository owner"]}},"findings":[],"inputs":{"packages":[{"registryType":"npm","identifier":"vivarium-mcp","version":"1.0.0","found":true,"license":"MIT","hasInstallScripts":false,"dependencyCount":0,"publishedAt":"2026-06-21T04:00:25.243Z","repositoryUrl":"git+https://github.com/rongchang726-png/vivarium.git","weeklyDownloads":27}],"repo":{"found":true,"owner":"rongchang726-png","repo":"vivarium","archived":false,"pushedAt":"2026-07-03T10:51:13Z","stars":0,"forks":0,"openIssues":0,"ownerType":"User","ownerAvatarUrl":"https://avatars.githubusercontent.com/u/282233371?v=4","ownerCreatedAt":"2026-05-06T11:36:34Z"},"icon":{"url":null,"source":"none"},"presence":{"stars":0,"forks":0,"downloadsWeek":27,"license":"MIT","lastPushAt":"2026-07-03T10:51:13.000Z","score":17}}}},"grade_history":[],"reviews":[]}