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Compare scores, permissions, risks, and fit in one decision-focused table.

DimensionPare NpmPare npm — Structured npm/pnpm operations as typed JSON.MartinLoop MCP ServerAn independent control layer that gives AI coding agents budgets, brakes, and receipts
FMRS44 / 100 · D79 / 100 · B
Reliability6 / 2012 / 20
Security and permissions7 / 2018 / 20
Maintenance12 / 2016 / 20
Documentation9 / 2018 / 20
Setup experience10 / 2015 / 20
Best for
  • TypeScript/JavaScript projects using npm or pnpm
  • Integration with AI coding assistants that need type-safe command outputs
  • Development environments that want to reduce errors from CLI output parsing
  • Engineering teams scaling AI coding agents while controlling spend
  • Platform teams that need auditable, rollback-aware agent execution records
  • Organizations using multiple agents (Claude, Codex, Gemini) under one governed flow
Not for
  • Simple manual commands not requiring structured output
  • Projects that need package managers other than npm/pnpm (e.g., yarn, bun) since this server only supports npm/pnpm
  • Beginners unfamiliar with the MCP protocol
  • Developers who just want a simple code-completion helper without run governance
  • Teams unwilling to accept local JSONL run records with HMAC signing
  • Environments without a supported adapter (Claude/Codex/Gemini CLIs, direct provider, or verifier-only)
Required permissions
  • Needs access to package.json and lock files in the project directory
  • Can execute npm/pnpm commands that may consume network resources (e.g., install, audit)
  • Needs to read the project's dependency tree and configuration
  • Read/write access to the configured repo root (writable scope restrictable via --allow-path/--deny-path)
  • Ability to invoke the chosen agent CLI (Claude/Codex/Gemini, etc.) and its underlying model account
  • Local disk writes for run records, receipts, and share outputs (share/run-receipt., etc.)
  • Execution of user-configured verifier commands (e.g. npm test)
Risks and side effects
  • Running npm install may modify node_modules and lock files; back up important data
  • npm audit may return a large amount of data, but structured output may still contain sensitive info like dependency versions
  • The server communicates via stdout; misconfiguration can lead to protocol conflicts
  • Verifier commands are executed; poorly chosen verifier commands carry security risk despite preflight policy checks
  • Cost and token figures may be estimates (labeled with provenance) and should not be treated as settled accounting
  • Receipt integrity must be verified before use as trustworthy evidence; missing rollback evidence is flagged as EVIDENCE_BOUNDARY
  • Policy defaults come from martin.config.yaml and can be overridden by CLI flags; misconfiguration can loosen safety boundaries
Supported clientsClaude DesktopClaude Code, Codex, Gemini CLI, Cursor, VS Code, GitHub Copilot, Continue
Tools50