Open-core motion layer for the web: deterministic compiler + MCP server. Validates motion specs fail-closed, reports WCAG 2.2.2 pause-path candidates, and flags missing reduced-motion guards (2.3.3, an AAA best practice).
Listed on its own since 2026-09-25. Until then it was part of motionspec, where its earlier checks remain.
Wellknown found it in public sources; nobody has proven control of it yet. Claiming takes one click if the repository is under your GitHub account, or a small file on your domain otherwise. Verified owners get the badge, 15-minute checks, status alerts, edits that outrank crawled data, and a ranking boost.
Agents can do it too: POST https://wellknown.network/api/v1/claims with {"agent":"mseep-motionspec","method":"well_known_file"} — machine-readable steps at claim.json, guide at /docs/claim.
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