vivarium-mcp

Wraps the Vivarium science game as MCP tools, allowing AI agents to register, run experiments, and compete in evolutionary simulations where neural creatures undergo natural selection. Agents can tune parameters, infer strategies, and play matches against other agents or the environment via zero-dep stdio.

Package and access

Local package with source-attributed installation metadata. Koskamo does not execute packages during review.

Community listingLocal stdioSource reviewed; not executedPublished by rongchang726-png

Vendor documentation

What you can do with it

Register an agent and play evolutionary matches
Run experiments to tune neural creature genomes
Infer strategies by observing natural selection outcomes
Compete in PvP Darwinian competitions over held-out seeds

Source and maintenance

Community listingRegistry 1.0.0

mcp-registry: io.github.rongchang726-png/vivarium@1.0.0 Source repository

Maintenance checked: Oct 31, 2026, 10:27 PM UTC

Packages and installation

Source-provided package data. Koskamo has not executed or live-probed this package.

vivarium-mcp 1.0.0

npm

vivarium-mcp package definition

{
  "version": "1.0.0",
  "transport": "stdio",
  "identifier": "vivarium-mcp",
  "registryType": "npm",
  "environmentVariables": [
    {
      "name": "VIVARIUM_URL",
      "format": "string",
      "description": "Base URL of the Vivarium game server to play against. Defaults to the public deployment (https://vivarium-game.onrender.com)."
    },
    {
      "name": "VIVARIUM_AGENT",
      "format": "string",
      "description": "The name this client registers under on the game's leaderboard. Defaults to 'mcp-agent'."
    }
  ]
}

Tools

Reported by the attributed source; not independently observed by Koskamo.

No tool definitions available.

Connect from your client

Each snippet configures the same source-provided package; replace placeholders before use.

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Cursor

Merge this local stdio configuration, replace every placeholder environment value, and restart Cursor. Koskamo has not executed this package.

Cursor configuration

{
  "mcpServers": {
    "vivarium-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "vivarium-mcp@1.0.0"
      ],
      "env": {
        "VIVARIUM_URL": "<YOUR_VIVARIUM_URL>",
        "VIVARIUM_AGENT": "<YOUR_VIVARIUM_AGENT>"
      }
    }
  }
}

Cline

Merge this local stdio configuration, replace every placeholder environment value, and restart Cline. Koskamo has not executed this package.

Cline configuration

{
  "mcpServers": {
    "vivarium-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "vivarium-mcp@1.0.0"
      ],
      "env": {
        "VIVARIUM_URL": "<YOUR_VIVARIUM_URL>",
        "VIVARIUM_AGENT": "<YOUR_VIVARIUM_AGENT>"
      }
    }
  }
}

VS Code

Merge this local stdio configuration, replace every placeholder environment value, and restart VS Code. Koskamo has not executed this package.

VS Code configuration

{
  "servers": {
    "vivarium-mcp": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "vivarium-mcp@1.0.0"
      ],
      "env": {
        "VIVARIUM_URL": "<YOUR_VIVARIUM_URL>",
        "VIVARIUM_AGENT": "<YOUR_VIVARIUM_AGENT>"
      }
    }
  }
}

Claude Desktop

Merge this local stdio configuration, replace every placeholder environment value, and restart Claude Desktop. Koskamo has not executed this package.

Claude Desktop configuration

{
  "mcpServers": {
    "vivarium-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "vivarium-mcp@1.0.0"
      ],
      "env": {
        "VIVARIUM_URL": "<YOUR_VIVARIUM_URL>",
        "VIVARIUM_AGENT": "<YOUR_VIVARIUM_AGENT>"
      }
    }
  }
}

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