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

DimensionFlyto2 CoreOpen-source execution engine for AI agents with 468 modules, MCP-native, triggers, queue, versioning, and metering.NPM Sentinel MCP ServerAI-powered NPM package analysis MCP server
FMRS50 / 100 · D79 / 100 · B
Reliability8 / 2012 / 20
Security and permissions8 / 2016 / 20
Maintenance12 / 2018 / 20
Documentation12 / 2018 / 20
Setup experience10 / 2015 / 20
Best for
  • Developers needing reliable, replayable workflow automation
  • Teams wanting deterministic tools for AI agents
  • Users requiring unified execution engine for browser, API, and file operations
  • Developers auditing NPM dependencies within AI workflows
  • Teams performing supply chain security assessments
  • Users of Claude Desktop, Cursor, or VS Code
Not for
  • Users looking for a hosted cloud service rather than self-hosting
  • Users needing non-Python language support
  • Users needing simple scripts without advanced replay and evidence features
  • 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
  • File system read/write (sandboxed path guard)
  • Network requests (guarded HTTP clients)
  • Environment variable reads (93 documented readers)
  • Browser automation via Playwright
  • 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
  • Sandbox path guard may block some file writes
  • Network access may be restricted, affecting external API calls
  • Requires Python environment for MCP server
  • Active development may change features
  • 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 DesktopClaude Desktop, VS Code, Cursor
Tools119