Liquidity Cockpit API
API access to the Liquidity Cockpit, big xyt's dark and lit liquidity, market share, and market quality analytics for navigating fragmented equity market structure. Publicly named on the xythub.github.io landing page with a product site at liquidity-cockpit.com, but the API reference at docs.big-xyt.com is login-gated (HTTP 403 unauthenticated), so no endpoints or base URL are publicly documented.