CONDITIONAL BASE RATES over NoVo's own logged dealer history - 'given this dealer state, here is what has actually happened next, and how many times we have seen it'. AGGREGATE HISTORY, NOT A FORECAST: every cell carries n, sessions and a precomputed usable flag, and a cell drawn from one afternoon reads authoritative while being noise - branch on usable before you quote a rate. The table is computed over the paid dealer map's own history, so it cannot be reconstructed from a third-party option chain. Response states age_seconds; the engine aggregates on its own schedule, so read the age rather than assuming a cadence. Requires an API key whose email holds a live NoVo MCP & API subscription (Authorization: Bearer novo_..., keys at /api/key, subscription at novo-options.trade/developers). A dashboard plan does NOT open this door.