MotionSpec — web animation accessibility MCP

Connect Remote server

claude mcp add --transport http motionspec https://api.motionspec.dev/mcp

{
  "mcpServers": {
    "motionspec": {
      "url": "https://api.motionspec.dev/mcp"
    }
  }
}

{
  "servers": {
    "motionspec": {
      "type": "http",
      "url": "https://api.motionspec.dev/mcp"
    }
  }
}

Settings > Connectors > Add custom connector
URL: https://api.motionspec.dev/mcp

Tools 5 found in our last check

• motion_catalog

  Returns the catalog of verified motion primitives (names, purpose, parameter schemas, defaults) plus the authoring rules for writing a MotionSpec. Call this FIRST, then write the spec yourself, check it with motion_validate and compile it with motion_compile. Free motion check:…

• motion_validate

  Checks a MotionSpec against the schema, the primitive allow-list, parameter bounds and injection rules. Fail-closed: returns ok=false with precise errors. Returns {ok, errors, warnings, deprecations, catalogVersion}. IMPORTANT: warnings[] carries the WCAG 2.2.2 / reduced-motion…

• motion_compile

  Validates (fail-closed) and deterministically compiles a MotionSpec into vanilla-GSAP JavaScript and CSS, with prefers-reduced-motion enabled by default and a performance-budget report. Same spec always yields identical code. Returns {ok:true, js, css, warnings, report, catalogV…

• motion_audit

  Static motion-a11y checker: fetches a URL's HTML + linked stylesheets (up to 12 sheets, 2 MB per response, 8 s timeout) and scans the CSS for (1) animation/transition that moves without an effective (cascade-aware) prefers-reduced-motion guard, (2) animated non-transform/opacity…

• motion_stats

  Operator telemetry of the hosted service (not your own usage); needs the operator key (header x-motionspec-key). This unauthenticated call returns access information only; it does not compile code, fetch URLs, run an audit or read usage data. Arguments are optional and unused. R…

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