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Compare MCP servers

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

DimensionBlockbench MCPAdds an MCP server to Blockbench so AI clients can reach a local modeling sessionNPM Sentinel MCP ServerAI-powered NPM package analysis MCP server
FMRS56 / 100 · C79 / 100 · B
Reliability9 / 2012 / 20
Security and permissions10 / 2016 / 20
Maintenance11 / 2018 / 20
Documentation12 / 2018 / 20
Setup experience14 / 2015 / 20
Best for
  • 3D modelers using the desktop version of Blockbench
  • Developers who want MCP clients wired into their local modeling environment
  • Users adding AI assistance to a Blockbench workflow
  • Developers auditing NPM dependencies within AI workflows
  • Teams performing supply chain security assessments
  • Users of Claude Desktop, Cursor, or VS Code
Not for
  • Users who cannot run desktop Blockbench or load plugins
  • Clients without access to local HTTP endpoints
  • Users who need official support or a hosted service
  • 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
  • Loading and running a third-party plugin inside Blockbench
  • Exposing a local MCP server port (default 3000)
  • AI client access to http://localhost:3000/bb-mcp
  • 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 plugin is third-party and not maintained by Blockbench itself
  • A local MCP endpoint without restrictions could be reached by other local programs
  • Incorrect port or endpoint configuration causes connection failures
  • Loading the plugin from a URL relies on remote script distribution
  • 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 clientsVS Code, Claude Desktop, Claude Code, Cline, Ollama, OpenCode, AntigravityClaude Desktop, VS Code, Cursor
Tools019