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MotionLint MCP Server

local only

MotionLint runs on your own machine — the client starts it, so there is no endpoint to ping. 69 installs a week from npm. Last commit 27 Jul 2026.

Catch bad animations before they ship. Deterministic motion audit + vision-LLM design review.

Installs per day peak 16 · avg 6 · +12% w/w
a month agotoday
69
Installs / week
npm · motionlint
0
Stars
0 open issues
27 Jul 2026
Last commit
no releases in 90 days
MIT
License
TypeScript

What the code does

We read the source, 5 d ago · rules 995398eba69f

Capabilities

What this server is able to do. For an MCP server this is often the job itself — a terminal server runs commands because that is what it is for. Listed so you know what you are plugging in, not as an accusation.

Runs a command on install [пакет] package.json:1
postinstall: node -e "console.error('\n  [motionlint] One more step: install Playwright Chromium so capture works:\n    npx playwright install chromium\n')"
Runs an external command src/cli/commands.ts:323
    spawn(opener, [outPath], { detached: true, stdio: "ignore" }).unref();
Executes code built at runtime src/capture/dom.ts:53
  const wrapped = new Function(`var __name = (f) => f; return (${src})();`) as () => DomSnapshot;

Is this your server and something here is wrong? Tell us — corrections are free and do not require a plan.

This code can reach further than it looks

We found places where it runs commands, builds paths or queries from values it is given. None of that is a flaw by itself — it becomes one when the code changes, and code changes quietly between releases. We re-read it on every one.

Three servers free · no card

Connect this server

This server runs on your own machine — install it with the package manager and the client starts it for you. Package name taken from the official registry entry.

run in your terminal
claude mcp add motionlint -- npx -y motionlint
~/Library/Application Support/Claude/claude_desktop_config.json
{
  "mcpServers": {
    "motionlint": {
      "command": "npx",
      "args": [
        "-y",
        "motionlint"
      ]
    }
  }
}
~/.codex/config.toml
[mcp_servers.motionlint]
command = "npx"
args = ["-y", "motionlint"]
.cursor/mcp.json
{
  "mcpServers": {
    "motionlint": {
      "command": "npx",
      "args": [
        "-y",
        "motionlint"
      ]
    }
  }
}
.vscode/mcp.json
{
  "servers": {
    "motionlint": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "motionlint"
      ]
    }
  }
}

Optional settings from the registry entry, left out of the block above: ANTHROPIC_API_KEY (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 (OpenAI API key for vision-LLM review. Optional), GOOGLE_API_KEY (Google API key for vision-LLM review. Optional), OPENAI_BASE_URL (Override the OpenAI base URL to target an OpenAI-compatible endpoint. Optional).

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MotionLint — questions

Answers built from our own checks of this server.

Why is there no uptime for MotionLint?
MotionLint runs on your own machine over stdio — there is no network address to reach, so uptime cannot be measured for it by anyone. What can be measured is adoption: the npm package motionlint was installed 69 times last week.
How do I connect MotionLint?
Copy the ready config from this page. We generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each in the form that client actually reads. It runs locally, so the command pulls motionlint straight from npm; nothing to host, nothing to sign up for.
How many people use MotionLint?
The npm package motionlint was installed 69 times in the last week. Week over week that is +12%. We show installs rather than GitHub stars on purpose: a star is a bookmark, an install is someone actually running it.
Is MotionLint open source?
Yes — it is published under the MIT licence, written in TypeScript and 0 stars on GitHub. The source link is on this page, so you can read exactly what it does with your data before you connect it.