MotionLint MCP

MotionLint is a deterministic motion audit and vision-LLM design review tool that measures animation quality from live pages. It scores durations, easing curves, and reduced-motion support against standards, providing concrete fixes. It integrates as an MCP server for Claude Code and Cursor to feed verdicts back into the coding loop.

Package and access

Local package with source-attributed installation metadata. Koskamo does not execute packages during review.

Community listingLocal stdioSource reviewed; not executedPublished by bobaba99

You need:npx playwright install chromium

Vendor documentation

What you can do with it

Measure animation durations and easing curves from live pages
Score motion against published animation standards
Perform vision-LLM design review with multi-viewport screenshots
Integrate as an MCP server for Claude Code and Cursor

Source and maintenance

Community listingRegistry 0.2.1

mcp-registry: io.github.bobaba99/motionlint@0.2.1 Source repository

Maintenance checked: Oct 31, 2026, 10:59 PM UTC

Packages and installation

Source-provided package data. Koskamo has not executed or live-probed this package.

motionlint 0.2.1

npm

motionlint package definition

{
  "version": "0.2.1",
  "transport": "stdio",
  "identifier": "motionlint",
  "registryType": "npm",
  "registryBaseUrl": "https://registry.npmjs.org",
  "packageArguments": [
    {
      "type": "positional",
      "value": "mcp",
      "description": "Starts MotionLint in MCP stdio server mode."
    }
  ],
  "environmentVariables": [
    {
      "name": "ANTHROPIC_API_KEY",
      "format": "string",
      "description": "Anthropic API key for vision-LLM review. Optional — the deterministic audit needs no key, and Ollama, OpenAI or Google can be used instead."
    },
    {
      "name": "OPENAI_API_KEY",
      "format": "string",
      "description": "OpenAI API key for vision-LLM review. Optional."
    },
    {
      "name": "GOOGLE_API_KEY",
      "format": "string",
      "description": "Google API key for vision-LLM review. Optional."
    },
    {
      "name": "OPENAI_BASE_URL",
      "format": "string",
      "description": "Override the OpenAI base URL to target an OpenAI-compatible endpoint. Optional."
    }
  ]
}

Tools

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No tool definitions available.

Connect from your client

Each snippet configures the same source-provided package; replace placeholders before use.

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Cursor

Merge this local stdio configuration, replace every placeholder environment value, and restart Cursor. Koskamo has not executed this package.

Cursor configuration

{
  "mcpServers": {
    "motionlint-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "motionlint@0.2.1",
        "mcp"
      ],
      "env": {
        "ANTHROPIC_API_KEY": "<YOUR_ANTHROPIC_API_KEY>",
        "OPENAI_API_KEY": "<YOUR_OPENAI_API_KEY>",
        "GOOGLE_API_KEY": "<YOUR_GOOGLE_API_KEY>",
        "OPENAI_BASE_URL": "<YOUR_OPENAI_BASE_URL>"
      }
    }
  }
}

Cline

Merge this local stdio configuration, replace every placeholder environment value, and restart Cline. Koskamo has not executed this package.

Cline configuration

{
  "mcpServers": {
    "motionlint-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "motionlint@0.2.1",
        "mcp"
      ],
      "env": {
        "ANTHROPIC_API_KEY": "<YOUR_ANTHROPIC_API_KEY>",
        "OPENAI_API_KEY": "<YOUR_OPENAI_API_KEY>",
        "GOOGLE_API_KEY": "<YOUR_GOOGLE_API_KEY>",
        "OPENAI_BASE_URL": "<YOUR_OPENAI_BASE_URL>"
      }
    }
  }
}

VS Code

Merge this local stdio configuration, replace every placeholder environment value, and restart VS Code. Koskamo has not executed this package.

VS Code configuration

{
  "servers": {
    "motionlint-mcp": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "motionlint@0.2.1",
        "mcp"
      ],
      "env": {
        "ANTHROPIC_API_KEY": "<YOUR_ANTHROPIC_API_KEY>",
        "OPENAI_API_KEY": "<YOUR_OPENAI_API_KEY>",
        "GOOGLE_API_KEY": "<YOUR_GOOGLE_API_KEY>",
        "OPENAI_BASE_URL": "<YOUR_OPENAI_BASE_URL>"
      }
    }
  }
}

Claude Desktop

Merge this local stdio configuration, replace every placeholder environment value, and restart Claude Desktop. Koskamo has not executed this package.

Claude Desktop configuration

{
  "mcpServers": {
    "motionlint-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "motionlint@0.2.1",
        "mcp"
      ],
      "env": {
        "ANTHROPIC_API_KEY": "<YOUR_ANTHROPIC_API_KEY>",
        "OPENAI_API_KEY": "<YOUR_OPENAI_API_KEY>",
        "GOOGLE_API_KEY": "<YOUR_GOOGLE_API_KEY>",
        "OPENAI_BASE_URL": "<YOUR_OPENAI_BASE_URL>"
      }
    }
  }
}

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