In-depth architectural comparison of the Q402 MCP and Node Code Sandbox 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
Q402 MCP
Code Execution · Local stdio
Quality: 52/100 (Good) | Auth: No auth required
Node Code Sandbox MCP
Code Execution · Local stdio
Quality: 52/100 (Good) | Auth: No auth required
Verdict Summary: Choose Q402 MCP if you need specialized Code Execution tools running via a local process. Choose Node Code Sandbox 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?
Q
Choose Q402 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).
Q402 - gasless payments, yield, escrow, bridge & NAV triggers on 12 EVM chains. Sandbox-default.
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
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…
q402_batch_pay
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…
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).
Q402 MCP is categorized under Code Execution and uses a local stdio subprocess. In contrast, Node Code Sandbox MCP belongs to Code Execution using local stdio subprocess. Select Q402 MCP when you need capabilities focused on code execution and Node Code Sandbox MCP when you require tools for code execution.
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.