JavaScript Sandbox Server

MCPOpen Source36.1

by garc33 • Security & Privacy

An MCP server that executes JavaScript code in an isolated, resource-limited sandbox for secure runtime evaluation.

Example Use Cases

1
Run user-supplied JavaScript safely with enforced time and memory limits.
2
Evaluate code snippets or perform dynamic computations in a controlled sandbox.
3
Integrate on-demand JavaScript execution into Claude/Desktop workflows via an MCP server.

Description

This MCP server exposes a secure JavaScript execution environment via the Model Context Protocol. It runs supplied JavaScript in an isolated process with configurable execution timeout and memory limits and returns execution results. The server is designed to protect against malicious code and integrates with MCP-based clients (examples: Claude Desktop via Smithery); debugging can be done using the MCP Inspector.

Capabilities(1 total)

Tools (1)

execute_js

Execute JavaScript code in an isolated environment

code:string*timeout:numbermemory:number

Quick Actions

View on GitHub

Security

Scanned 3 month(s) ago

Risk Level

CRITICAL

Shell/code execution or full filesystem access

Trust Score

C57/100

10/17 checks passed

Scores are informational only and provided “as is” without warranty. AgentHotspot assumes no liability for actions taken based on these ratings.

Quick Stats

Service TypeMCP

Pricing ModelUnknown

Capabilities1 Tools / 0 Prompts / 0 Resources

Ownergarc33

CategorySecurity & Privacy

DependenciesStandalone

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