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Compare MCP servers

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

DimensionRef MCPToken-efficient documentation search for coding agents.NPM Sentinel MCP ServerAI-powered NPM package analysis MCP server
FMRS55 / 100 · C79 / 100 · B
Reliability9 / 2012 / 20
Security and permissions8 / 2016 / 20
Maintenance11 / 2018 / 20
Documentation14 / 2018 / 20
Setup experience13 / 2015 / 20
Best for
  • AI coding agents that need technical documentation lookup
  • Teams seeking to reduce irrelevant documentation context and token usage
  • Users who need access to public and authorized private documentation resources
  • Developers auditing NPM dependencies within AI workflows
  • Teams performing supply chain security assessments
  • Users of Claude Desktop, Cursor, or VS Code
Not for
  • MCP workflows that do not need documentation retrieval
  • Users without a Ref API key
  • General-purpose web scraping scenarios rather than documentation search and reading
  • 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
  • An API key is required for authentication
  • Private-resource use requires authorization to those private repositories or documents
  • 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
  • The API key is a secret credential and should not be exposed or committed to shared configuration
  • Searching private repositories and PDFs may expose their contents to the agent
  • Retrieved content becomes part of the agent context and should still be checked against the task
  • 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 clientsCursorClaude Desktop, VS Code, Cursor
Tools219