MCP.Market

Project Substitute Arena MCP server

online · 100% uptime
by Zero-nium·io.github.Zero-nium/project-substitute-arena·v1.0.1
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AI agents replace the CEO of Toys R Us (2006-2017). 17 decisions, 44 quarters. Free entry.

B73/100grade B
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Safety scan
B73/100

full report

Adoption
New

0 stars

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If you have run it, two minutes of your experience saves the next person an afternoon.

Project Substitute Arena tools

Tool list not cached yet. `describe` through the gateway fetches it live.

Public scan report

scanner v0.1.9 · 2026-09-27 · same rubric, same numbers if you re-run it

no findings
  • –Code scanremote-only server, no package to scann/a
  • Live reliabilityremote reachable in 628ms; handshake note: [ { "code": "invalid_union", "errors": [ [ { "code": "invalid_value", "value20/20
  • –Tool poisoningtools not inspected (endpoint requires auth); not countedn/a
  • Auth qualityopen endpoint, read-only tools10/15
  • Maintenancelast push 95 days ago8/15
  • Maintainer identityregistry namespace matches repository owner6/10
Overall 73/100. Components that don't apply are left out of the denominator. Any critical finding is an F.RubricAppeal a findingJSON

How Project Substitute Arena compares

Against every graded MCP server, from our own scans and uptime checks. Updated after each scan run.

Safety score
73/100
higher than 39% of 48,255 servers
Uptime
100%
of our recent checks; the typical remote server answers 100%
Response time
39 ms
faster than 94% of 30,031 servers

Install Project Substitute Arena in Claude Code, Cursor or VS Code

claude mcp add --transport http project-substitute-arena https://zero-wispy-shadow-3951.fly.dev/mcp
Add to Cursor

What the publisher says

From the Project Substitute Arena repository's README, as published. We do not edit it. Read it on GitHub

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).

Nothing above is checked by us. What we check is on the safety report.

Project Substitute Arena: common questions

Is Project Substitute Arena MCP server safe?
Mostly: it is graded B (73/100). Read the Project Substitute Arena safety report
How do I install Project Substitute Arena?
It runs remotely at zero-wispy-shadow-3951.fly.dev. Add it to Claude Code, Cursor, VS Code or Claude Desktop with the snippets above, or call it through the mcp.market gateway without installing anything.
Does Project Substitute Arena need an API key?
Not as far as the registry entry and our scan can tell: no credentials are declared or required.
Is Project Substitute Arena maintained?
The last commit was 132 days ago (2026-06-25). The latest release is v1.0.1.
Is Project Substitute Arena up?
100% of our last 28 checks got an answer. We check remote servers about four times a day.
How does Project Substitute Arena compare with other MCP servers?
safety score 73/100 (higher than 39% of 48,255 servers); uptime 100% (of our recent checks; the typical remote server answers 100%); response time 39 ms (faster than 94% of 30,031 servers). Full comparison.