In-depth architectural comparison of the Node Code Sandbox MCP and Q402 MCP 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.
At a Glance & Executive Verdict
Node Code Sandbox MCP
Code Execution · Local stdio
Quality: 52/100 (Good) | Auth: No auth required
Q402 MCP
Code Execution · Local stdio
Quality: 52/100 (Good) | Auth: No auth required
Verdict Summary: Choose Node Code Sandbox MCP if you need specialized Code Execution tools running via a local process. Choose Q402 MCP if your workspace requires Code Execution integration with local subprocess execution. Both servers can be configured concurrently in your client's mcpServers manifest.
Which MCP Server Should You Choose?
Choose Node Code Sandbox MCP when:
You need dedicated capabilities in the Code Execution domain.
You prefer local stdio subprocess transport architecture.
Your security boundary fits: No auth required (Free / Open Source).
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
Q402 - gasless payments, yield, escrow, bridge & NAV triggers on 12 EVM chains. Sandbox-default.
Single-recipient gasless transfer. Sandbox by default. In live mode, automatically runs a trust-check ($0.02) on the recipient before each payment when it is a first-time counterparty or the amount ≥ $1; verdict cached 7 days (no double-charge within TTL). Degrades to free basic verdict only when w…
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).
Node Code Sandbox MCP is categorized under Code Execution and uses a local stdio subprocess. In contrast, Q402 MCP belongs to Code Execution using local stdio subprocess. Select Node Code Sandbox MCP when you need capabilities focused on code execution and Q402 MCP when you require tools for code execution.
Up to 20 recipients per call. Trial: 5 - applies when paying with your own key (Mode A/B); server-managed Agent Wallet (Mode C) batch is paid Multichain-only. Same auto-routing as `q402_pay`. 6+ BNB batches with Trial set return `status="ambiguous"` so the agent asks how to split. xlayer + stable n…
q402_receipt
Fetch + locally verify a Trust Receipt (`rct_…` id, ECDSA against the relayer EOA).
q402_wallet_status
Per-chain EIP-7702 state for the EOA derived from `Q402_PRIVATE_KEY`.
q402_clear_delegation
Clear EIP-7702 delegation (Mode A/B local key OR Mode C api key, server-signed). Sponsored on every chain except Ethereum (billed to your Gas Tank). Two-phase consent (`consentToken`).
q402_agentic_info
Agent Wallet info (addresses, per-wallet caps, daily-spend used, ERC-8004 id). Drives Mode C.
q402_memory_summary
Treasury overview over a window: USD-stablecoin spend by chain/source, top vendors, schedules, open requests/escrow, failures. Read-only.
q402_vendor_history
Total paid to one vendor (or a vendor leaderboard) with recurring cadence. Read-only.
q402_agent_spend_report
Per-Agent-Wallet spend with each wallet's caps. Read-only.