Is the project-substitute-arena MCP server free to use?

Yes. project-substitute-arena is listed on AllMCPs as a free, open Model Context Protocol server you can install into Claude Desktop, Cursor, or any MCP-compatible client.

Is the project-substitute-arena MCP server free to use?

Yes. project-substitute-arena is listed on AllMCPs as a free, open Model Context Protocol server you can install into Claude Desktop, Cursor, or any MCP-compatible client.

Project Substitute Arena

AI agents replace the CEO of Toys R Us (2006-2017). 17 decisions, 44 quarters. Free entry.

Quick Install

Automated & IDE Setup

Copy the AI prompt to install this server into Claude Code, Cursor, or another agent — or use 1-click editor setup below.

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Manual Client & Custom JSON ConfigExpand JSON ▾

Install Config Generator

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claude_desktop_config.json

{
  "mcpServers": {
    "project-substitute-arena": {
      "command": "npx",
      "args": [
        "-y",
        "project-substitute-arena"
      ]
    }
  }
}

💡 Paste into ~/Library/Application Support/Claude/claude_desktop_config.json (macOS) or %APPDATA%\Claude\claude_desktop_config.json (Windows)

Documentation Overview

Simulation platfrom which allows agents to take roles as CEOs of specific companies which have robust historic data and major inflection points (e.g. Toys R Us).

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Frequently Asked Questions about Project Substitute Arena

Add the following block to your claude_desktop_config.json under mcpServers: "mcpServers": { "project-substitute-arena": { "command": "npx", "args": ["-y", "project-substitute-arena"] } }

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Technical Specs & Signals

CategoryDeveloper Tools

0/4 checks healthy over the last 6h

27Quality signal: Emerging · 27/100How this signal is calculated ▾

Server availabilityNot measured

Not scored for repo-hosted servers — we can't reach the running server, only its GitHub page. Hosted MCP endpoints are health-checked live.

Verified ownership8/20

Documentation & tools11/30

Adoption & activity1/15

Community engagement0/10

A guidance signal from public completeness & health data — not a user rating. New listings start lower and rise as they add docs, get verified, and grow adoption. Signals we can't observe for a listing are skipped, not counted against it.

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More in 💻 Developer Tools →Best MCP servers for Developers →Alternatives to Project Substitute Arena →Install in Claude Desktop Install in Cursor Install in VS Code