MotionSpec — web animation accessibility MCP
Web animation accessibility MCP: GSAP, static CSS checks, prefers-reduced-motion, WCAG 2.2.2/2.3.3.
Connect it
Settings → Connectors → Add custom connector
URL: https://api.motionspec.dev/mcpSettings → Apps & Connectors → Advanced → Developer mode
Create connector with URL: https://api.motionspec.dev/mcp{
"mcpServers": {
"motionspec": {
"url": "https://api.motionspec.dev/mcp"
}
}
}claude mcp add --transport http motionspec https://api.motionspec.dev/mcp{
"servers": {
"motionspec": {
"type": "http",
"url": "https://api.motionspec.dev/mcp"
}
}
}{
"mcpServers": {
"motionspec": {
"command": "npx",
"args": [
"-y",
"motionspec@1.2.9"
]
}
}
}claude mcp add motionspec -- npx -y motionspec@1.2.95 tools, verified live
motion_catalogread-onlyReturns 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 and validate it with motion_validate (motion_compile runs in the CLI or with a key on the hosted endpoint). Free motion check: motionspec.dev/motion-check · keys for the hosted endpoint: motionspec.dev/prici
motion_validateread-onlyChecks 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 findings and can be non-empty while ok=true — a spec that compiles is not automatically accessible. Use to pre-check a sp
motion_compileread-onlyRequires a Dev Key ($39/mo) or Agency plan ($249/mo) on the hosted endpoint (motionspec.dev/pricing?src=mcp). 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. Returns isError:true with structuredContent {ok:false, error:'PAYWALL', tool, upgrade} and text guidance. To use motion_compi
motion_auditread-onlyRequires a Dev Key ($39/mo) or Agency plan ($249/mo) on the hosted endpoint (motionspec.dev/pricing?src=mcp). 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. Returns isError:true with structuredContent {ok:false, error:'PAYWALL', tool, upgrade} and text guidance. To use motion_audit
motion_statsread-onlyRequires a Dev Key ($39/mo) or Agency plan ($249/mo) on the hosted endpoint (motionspec.dev/pricing?src=mcp). 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. Returns isError:true with structuredContent {ok:false, error:'PAYWALL', tool, upgrade} and text guidance. To use motion_stats
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