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

DimensionCircleCI MCP ServerIntegrate CircleCI development workflows with the Model Context Protocol for AI-powered development.NPM Sentinel MCP ServerAI-powered NPM package analysis MCP server
FMRS42 / 100 · D79 / 100 · B
Reliability6 / 2012 / 20
Security and permissions10 / 2016 / 20
Maintenance8 / 2018 / 20
Documentation10 / 2018 / 20
Setup experience8 / 2015 / 20
Best for
  • Developers using MCP-compatible clients like Cursor, VS Code, Claude Desktop.
  • Teams that want to manage CircleCI pipelines seamlessly within their IDE.
  • Developers needing quick diagnostics for build failures and test issues.
  • Developers auditing NPM dependencies within AI workflows
  • Teams performing supply chain security assessments
  • Users of Claude Desktop, Cursor, or VS Code
Not for
  • Users needing the latest features and security updates, as the package is deprecated and unmaintained.
  • Users seeking a hosted solution; CircleCI's hosted MCP server is recommended.
  • Users needing public remote access unless deploying a self-managed remote server with extra security.
  • 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
  • Requires a CircleCI Personal API token (CIRCLECI_TOKEN) with read access to projects.
  • In remote mode, requires configuring allowed hosts (MCP_ALLOWED_HOSTS) and authentication.
  • File-related tools may read/write files; set MCP_FILE_OUTPUT_ROOTS to restrict root directories.
  • 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
  • Token exposure: if the personal or shared token leaks, unauthorized operations may occur.
  • Deprecation risk: the server is no longer maintained, potentially with security or compatibility issues.
  • Remote mode risk: if authentication is disabled (REQUIRE_REQUEST_TOKEN=false), anyone reaching the port can act on the server.
  • 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 clientsCursor, VS Code, Claude Desktop, Claude Code, Windsurf, Amazon Q DeveloperClaude Desktop, VS Code, Cursor
Tools1319