MotionSpec MCP Server

Hallucination-proof scroll motion: LLM writes validated specs, deterministic GSAP/CSS compiler.

Remote serverstreamable-http

What is the MotionSpec MCP Server?

Hallucination-proof scroll motion: LLM writes validated specs, deterministic GSAP/CSS compiler.

What you get

Run it two ways: as a keyless MCP server any LLM host can call (npx motionspec), or as a CLI compiler in your build (motion compile spec.json). Either way you keep plain files — a GSAP build or a dependency-free WAAPI/CSS lowering. MIT core. Docs: https://motionspec.dev

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Maintainer setup documentation.

Recorded tools

Check the linked publisher documentation and your connected client's tool list. Names and availability can vary with the server version and account permissions.

ToolWhat it does
motion_catalogprimitives + authoring rules + catalog version (16-hex pin)
motion_validatefail-closed Trust Boundary; precise [MS-XXX] errors; surfaces deprecations
motion_compiledeterministic spec → code; never emits on a failed validation
motion_auditstatic motion-a11y check of a live URL (read-only, open-world)
motion_statstelemetry summary (escalations = catalog growth signal)

How to install the MotionSpec MCP Server

{
  "mcpServers": {
    "motionspec": {
      "command": "npx",
      "args": ["-y", "motionspec"],
      "env": {
        "MOTION_API_KEY": "your-value",
        "OPENROUTER_API_KEY": "your-value",
        "MOTION_BASE_URL": "your-value"
      }
    }
  }
}

Add to claude_desktop_config.json, then restart Claude Desktop.

Configuration

VariableDescriptionRequired
MOTION_API_KEYCredential the server authenticates with.Yes
OPENROUTER_API_KEYCredential the server authenticates with.Yes
MOTION_BASE_URLEndpoint or connection string the server talks to.Yes

Example prompts to try

  • “Use MotionSpec to Version.”
  • “Use MotionSpec to Published.”
  • “Use MotionSpec to Tests.”

Frequently asked questions

Hallucination-proof scroll motion: LLM writes validated specs, deterministic GSAP/CSS compiler. Confirm the tools offered by your installed version in the connected client. Tool availability and permissions depend on the server and account configuration.