MotionLint MCP Server

by bobaba99io.github.bobaba99/motionlintv0.2.1

Lint web animations with deterministic checks on the live page (duration, easing, stagger, exits, reduced motion, hover) plus optional vision-LLM UX review.

0Node.jsstdioofficial registry

context tax

queued

security

queued

cold start

queued

freshness

Maintained3mo ago

Install MotionLint MCP server

claude mcp add motionlint -e ANTHROPIC_API_KEY='<anthropic-api-key>' -e OPENAI_API_KEY='<openai-api-key>' -e GOOGLE_API_KEY='<google-api-key>' -- npx -y motionlint mcp

{
  "mcpServers": {
    "motionlint": {
      "command": "npx",
      "args": [
        "-y",
        "motionlint",
        "mcp"
      ],
      "env": {
        "ANTHROPIC_API_KEY": "<anthropic-api-key>",
        "OPENAI_API_KEY": "<openai-api-key>",
        "GOOGLE_API_KEY": "<google-api-key>"
      }
    }
  }
}

Add to ~/.cursor/mcp.json (global) or .cursor/mcp.json (project).

{
  "mcpServers": {
    "motionlint": {
      "command": "npx",
      "args": [
        "-y",
        "motionlint",
        "mcp"
      ],
      "env": {
        "ANTHROPIC_API_KEY": "<anthropic-api-key>",
        "OPENAI_API_KEY": "<openai-api-key>",
        "GOOGLE_API_KEY": "<google-api-key>"
      }
    }
  }
}

Settings → Developer → Edit Config (claude_desktop_config.json), then restart.

{
  "servers": {
    "motionlint": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "motionlint",
        "mcp"
      ],
      "env": {
        "ANTHROPIC_API_KEY": "<anthropic-api-key>",
        "OPENAI_API_KEY": "<openai-api-key>",
        "GOOGLE_API_KEY": "<google-api-key>"
      }
    }
  }
}

Add to .vscode/mcp.json in your workspace.

{
  "mcpServers": {
    "motionlint": {
      "command": "npx",
      "args": [
        "-y",
        "motionlint",
        "mcp"
      ],
      "env": {
        "ANTHROPIC_API_KEY": "<anthropic-api-key>",
        "OPENAI_API_KEY": "<openai-api-key>",
        "GOOGLE_API_KEY": "<google-api-key>"
      }
    }
  }
}

Add to ~/.codeium/windsurf/mcp_config.json.

Configuration

Variable	Required	Secret	Description
ANTHROPIC_API_KEY	—	yes	Anthropic API key for vision-LLM review. Optional — the deterministic audit needs no key, and Ollama, OpenAI or Google can be used instead.
OPENAI_API_KEY	—	yes	OpenAI API key for vision-LLM review. Optional.
GOOGLE_API_KEY	—	yes	Google API key for vision-LLM review. Optional.
OPENAI_BASE_URL	—	—	Override the OpenAI base URL to target an OpenAI-compatible endpoint. Optional.

Freshness

Maintained — last maintenance signal 3mo ago. The newest of the signals below sets the band.

Last commit (default branch)
2026-07-27 · 3mo ago · GitHub
Latest release
2026-04-28 · 6mo ago · GitHub · v0.1.0
Package published
no data · npm/PyPI
Registry entry updated
2026-07-27 · 3mo ago · official registry · v0.2.1

FAQ

›How do I install the MotionLint MCP server in Claude Code?

Run: claude mcp add motionlint -e ANTHROPIC_API_KEY='<anthropic-api-key>' -e OPENAI_API_KEY='<openai-api-key>' -e GOOGLE_API_KEY='<google-api-key>' -- npx -y motionlint mcp. For Cursor, VS Code, Claude Desktop and Windsurf, use the install tabs above.

›Does MotionLint require an API key?

Yes. It expects ANTHROPIC_API_KEY, OPENAI_API_KEY, GOOGLE_API_KEY, of which 3 are secrets.

›Can I use MotionLint as a remote (hosted) MCP server?

No hosted endpoint is published; it runs locally over stdio.

›Is MotionLint in the official MCP registry?

Yes, as io.github.bobaba99/motionlint.