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Cliometry exposes measured Korean market data as MCP tools. It returns what a model cannot derive on its own: today's readings, already computed, in structured form.

Four read-only tools:

• Realized Leverage Multiple — how many times a leveraged or inverse ETF actually moved relative to its stated daily target multiple, over 20/60/252 trading-day windows. Returns benchmark and product cumulative returns, the design-implied expectation, the gap in pp, realized annualized volatility, and an approximate volatility-drag term. Covers KODEX Leverage and KODEX 200 Futures Inverse 2X (KRX-listed) plus SOXL and TQQQ (US-listed).

• SK Hynix ADR Premium — how many percent the US ADR (SKHY), converted to KRW, sits above or below the Seoul-listed ordinary share (KRX:000660). Daily series accumulated since listing.

• VIX Regime — CBOE Volatility Index close with a fixed-threshold regime label.

• Korean Semiconductor Sector RRG — relative-strength ratio, relative momentum, and quadrant for each Korean semiconductor-related sector.

What is different here: a model already knows what an ADR premium is. It does not know today's number for KRX:000660, and it cannot compute a 252-trading-day decomposition from memory. These are mechanical decompositions of past realized returns and daily-accumulated Korean series, delivered structured so no parsing is needed.

One tool ships an interactive MCP App widget (MCP Apps / SEP-1865), verified rendering on mobile, web, and desktop.

Every response carries its own source URL, as-of date, and stated limits. Data is CC BY 4.0 with attribution to Cliometry (https://cliometry.com). Delayed reference data for research and education; not investment advice.