mcp-server-code-runner

MCP server · npm · ★ 242 · graded 2026-10-24Source linked

Code Runner MCP Server

No outside reports on file

mcp-server-code-runner is distributed via npm (mcp-server-code-runner); review its source code, dependencies, and requested permissions before use.

Based on public adoption and transparency signals as of Oct 23, 2026. Our opinion, not a code audit or security guarantee.

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What it can access

Local filesNo local folder access notedLOW
Command executionRuns shell or system commandsREVIEW
Network reachConnects to outside service APINOTED
CredentialsNo API token requiredLOW
Package sourcenpm (mcp-server-code-runner)PUBLIC

Inferred from this listing’s public package details and description. Check the project’s source before installing.

Install

npx -y mcp-server-code-runner

All setup options ↓

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About MCP Server Code Runner

MCP Server Code Runner is an MCP server focused on Developer tools and Cloud & infrastructure: Code Runner MCP Server.

It is published on npm as mcp-server-code-runner and hosted on GitHub at formulahendry/mcp-server-code-runner (242 GitHub stars, 667 weekly npm downloads, last repository push on 2026-02-05). Based on its public metadata, it operates with standard local or API scope without broad shell execution flags noted.

Setup

Check these steps against the project’s own instructions before running anything.

Run mcp-server-code-runner with --ignore-scripts in claude_desktop_config.json or .cursor/mcp.json:

json

{
  "mcpServers": {
    "mcp-server-code-runner": {
      "command": "npx",
      "args": ["-y", "--ignore-scripts", "mcp-server-code-runner"]
    }
  }
}

Why this grade

CC — Moderate risk signals

Signal-based grade (2/7 points): public source code. This reflects adoption and transparency, not a code review.

Popularity and upkeep

51/100

GitHub stars: 242
Weekly npm downloads: 992
Listing last refreshed: 2026-10-28

These are public popularity signals, not a maintenance check. Look at the repository’s commit history and open issues.

Security reports

No reports found for this package in our research (last checked 2026-10-28).

Check a specific version →

Risks to watch for

Dependency & version pinning: Distributed via npm (mcp-server-code-runner). Pin an exact release version or commit SHA rather than floating tags so upstream updates are reviewed first.

How to lower the risk

Least-privilege permissions

Give it access only to the specific folders, accounts or projects it needs, never your whole drive or admin account.
Use a separate, limited API key or login just for this tool so you can switch it off without affecting anything else.

Network isolation

Run it on a work computer or sandbox account, not one holding personal or company-sensitive data.
If your IT team can, limit which websites and services it is allowed to contact.

Monitoring

Check its activity history or logs weekly at first, and look at what it changed or sent.
Turn on alerts for new logins or unusual usage on any account it connects to.

Red flags to watch for

It asks for more access than its job requires, or prompts you to paste passwords.
It suddenly updates with new owners, or starts contacting unfamiliar websites.

Questions

How do I install MCP Server Code Runner?

Run npx -y mcp-server-code-runner in your terminal, or add the server entry to your claude_desktop_config.json or .cursor/mcp.json as shown in the Setup section on this page. Full setup docs and environment variables are in github.com/formulahendry/mcp-server-code-runner.

Are there security reports about MCP Server Code Runner?

No reports found for this package in our research (last checked 2026-10-28). MCP Server Code Runner currently holds Grade C (Moderate risk signals) based on public adoption and transparency signals. Key risk areas to watch include dependency & version pinning:.

Is MCP Server Code Runner actively maintained?

MCP Server Code Runner has 242 GitHub stars and 992 weekly npm downloads, with its latest repository commit pushed on 2026-02-05. Our directory data was last refreshed on 2026-10-28. Check recent commit activity, release tags, and open issues at github.com/formulahendry/mcp-server-code-runner before pinning it in production.

What are alternatives to MCP Server Code Runner?

Compare MCP Server Code Runner side by side with similar MCP servers in the Related tools section on this page, or browse all MCP servers on AgentArmorHQ.

Maintain or use MCP Server Code Runner? Show its live grade in your GitHub README, docs site, or run a check from the terminal before you install.

AgentArmorHQ Risk Grade C for MCP Server Code Runner

GitHub README Markdown:

markdown

[![AgentArmorHQ Risk Grade for MCP Server Code Runner](https://agentarmorhq.com/api/badge/formulahendry-mcp-server-code-runner)](https://agentarmorhq.com/skills/formulahendry-mcp-server-code-runner)

HTML embed:

html

<a href="https://agentarmorhq.com/skills/formulahendry-mcp-server-code-runner"><img src="https://agentarmorhq.com/api/badge/formulahendry-mcp-server-code-runner" alt="AgentArmorHQ Risk Grade for MCP Server Code Runner" height="20" /></a>

Terminal check:

terminal

curl -fsSL https://agentarmorhq.com/api/cli | node --input-type=module - check "formulahendry-mcp-server-code-runner"

Share with your security lead

Need sign-off to use mcp-server-code-runner? Copy this note for Slack, a ticket or a pull request.

### AgentArmorHQ Security Review Memo: mcp-server-code-runner
- **Listing URL:** https://agentarmorhq.com/skills/formulahendry-mcp-server-code-runner
- **Type:** App connector
- **Risk Grade:** Grade C (Moderate risk signals)
- **Outside Security Advisories on File:** 0
- **Public Adoption:** 242 GitHub stars, 992 weekly npm downloads

#### Permission & Blast-Radius Signals
- **Local files:** No local folder access noted
- **Command execution:** Runs shell or system commands
- **Network reach:** Connects to outside service API
- **Credentials:** No API token required
- **Package source:** npm (mcp-server-code-runner)

#### Recommended Hardened Setup
- **Command:** `npx -y --ignore-scripts mcp-server-code-runner`
- **Controls:** Pin an exact version in `.mcp.json`, scope access to a single workspace folder, and use a least-privilege read-only token where supported.

_Based on public adoption and transparency signals as of Oct 23, 2026. Our opinion, not a code audit or security guarantee._

Key facts

Type: App connector
Publisher: formulahendry
Source code: github.com/formulahendry/mcp-server-code-runner
Install command: npm install mcp-server-code-runner
Est. context load: ~500 tokens / turn (~3 tool schemas, 0.25% of 200k context)
Popularity: 242 GitHub stars, 992 weekly npm downloads
Last updated: 2026-10-28
Last graded: 2026-10-24

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