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

DimensionFXHoudini MCP ServerThe most comprehensive MCP server for SideFX HoudiniNPM Sentinel MCP ServerAI-powered NPM package analysis MCP server
FMRS65 / 100 · C79 / 100 · B
Reliability11 / 2012 / 20
Security and permissions11 / 2016 / 20
Maintenance15 / 2018 / 20
Documentation15 / 2018 / 20
Setup experience13 / 2015 / 20
Best for
  • VFX artists and TDs who want to accelerate Houdini workflows with AI assistants
  • Users needing procedural modeling and simulation setup
  • Users familiar with Houdini but wanting to automate repetitive tasks
  • 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 Houdini 20.5+
  • Scenarios requiring real-time interactive operation with low latency
  • Environments with strict security policies that cannot accept arbitrary Python execution
  • 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
  • Access Houdini's Python API to execute arbitrary hou.* calls
  • Run code on Houdini's main thread, potentially blocking the UI
  • Communicate with local Houdini over HTTP port (default 8100)
  • May read/write files depending on tools used (e.g., rendering, caching)
  • 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
  • Arbitrary Python execution: improper AI instructions could damage scenes or systems
  • Network port exposure: default binds to loopback, but widening could allow unauthorized access
  • Performance overhead: each call has ~50 ms main-thread latency; many calls can slow Houdini
  • Version compatibility: outdated plugins may cause malfunctions
  • 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 Desktop, Claude CodeClaude Desktop, VS Code, Cursor
Tools10019