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

DimensionAsk Codex MCP ServerBridge Claude to the OpenAI Codex CLI for code review and a second opinion from another model.NPM Sentinel MCP ServerAI-powered NPM package analysis MCP server
FMRS52 / 100 · D79 / 100 · B
Reliability8 / 2012 / 20
Security and permissions11 / 2016 / 20
Maintenance10 / 2018 / 20
Documentation12 / 2018 / 20
Setup experience11 / 2015 / 20
Best for
  • Developers already using the OpenAI Codex CLI who want to reuse its quota
  • Teams that want cross-model second opinions inside Claude Code, Cursor, or similar assistants
  • Reasoning-heavy code reviews and architecture critique on specific files
  • Developers auditing NPM dependencies within AI workflows
  • Teams performing supply chain security assessments
  • Users of Claude Desktop, Cursor, or VS Code
Not for
  • Users without an OpenAI/Codex account or unable to install the Codex CLI
  • Anyone needing fully offline, zero-cost review (use the Ollama provider instead)
  • Users who need 1M+ token whole-codebase reads (use the Gemini or Antigravity provider)
  • Users expecting persisted per-session or cross-session usage accounting (usage stats are in-memory only)
  • Projects outside the NPM ecosystem (e.g., pure Python/Go)
  • Environments without network access to deps.dev, OSV.dev, and the npm registry
  • Scenarios requiring maintenance by an official upstream vendor
Required permissions
  • Execute the Codex CLI locally and use network access to reach Codex services
  • Read the files being reviewed and send their contents to the Codex CLI as prompts
  • Write MCP server configuration into client config files/directories
  • Optionally read the GMCPT_TIMEOUT_MS and GMCPT_LOG_LEVEL environment variables
  • Network access to the NPM registry and external services (deps.dev, OSV.dev, OpenSSF, npms.io, GitHub)
  • Read access to workspace lockfiles (pnpm-lock.yaml, package-lock., yarn.lock) for cache invalidation
Risks and side effects
  • Reviewed code is sent to the remote service behind the Codex CLI, which may conflict with data-egress policies
  • Codex CLI model and quota behavior is controlled upstream; documented defaults (gpt-6-astra → gpt-5.6-terra) can change
  • Omitting sessionId: "" on the first call yields a non-resumable one-shot session, which can be confusing
  • Unofficial third-party tool with no affiliation with or endorsement by Anthropic, OpenAI, or other vendors
  • Long reviews can exceed the default 5-minute timeout and be cut off
  • Third-party READMEs and changelogs are untrusted external content; they are wrapped in tags with _meta flags but should still be handled cautiously
  • Depends on availability and accuracy of external services
  • Batch requests are capped at 25 packages to prevent registry enumeration; larger sets require batching
  • Third-party open source project, not officially maintained by NPM or Anthropic
Supported clientsClaude Code, Cursor, Codex, Claude DesktopClaude Desktop, VS Code, Cursor
Tools119