Node Code Sandbox MCP vs Prover

In-depth architectural comparison of the Node Code Sandbox MCP and Prover MCP servers. Compare execution transports, security boundaries, tool capabilities, quality scores, and ready-to-paste client installation snippets for Claude, Cursor, Windsurf, and VS Code.

Which MCP Server Should You Choose?

Choose Node Code Sandbox MCP when:

• You need dedicated capabilities in the Code Execution domain.
• You prefer remote streaming HTTP/SSE transport architecture.
• Your security boundary fits: No auth required (Free / Open Source).
• Primary tools included: Output.

Explore Node Code Sandbox MCP Details

Choose Prover when:

• You need dedicated capabilities in the Code Execution domain.
• You prefer remote streaming HTTP/SSE transport architecture.
• Your security boundary fits: No auth required (Free / Open Source).
• Primary tools included: lean4_build, lean4_prove_theorems, lean4_get_job_status.

Explore Prover Details

Feature & Specification Comparison

Specification	Node Code Sandbox MCP alfonsograziano Code Execution	Prover Code Execution
Summary	A Node.js MCP server that spins up isolated Docker-based sandboxes for executing JavaScript snippets with on-the-fly npm dependency installation and clean teardown	Lean 4 MCP server: compile, prove theorems, and formalize math with Mathlib.
Category & Scope	Code Execution

Tools & Capabilities Breakdown

Ready-to-Paste Client Configurations

Paste either (or both) of these JSON server blocks into your client config file (e.g. claude_desktop_config.json or ~/.cursor/mcp.json).

{
  "mcpServers": {
    "alfonsograziano-node-code-sandbox-mcp": {
      "url": "https://hub.docker.com/r/mcp/node-code-sandbox"
    }
  }
}

{
  "mcpServers": {
    "prover": {
      "url": "https://prover.axiomatic-ai.com/mcp/"
    }
  }
}

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