Turkey Premium Index: one number for what lira buyers pay above the world price, with a 0 to 100 score
/turkey-premium now leads with the Turkey Premium Index, built like the Kimchi premium: the BTC-TRY reference against the global BTCUSDT price at the ECB USD/TRY rate, in basis points, split into a dollar leg (USDT/TRY against the official rate) and a crypto leg. A fixed, published scale turns it into a 0 to 100 score with five regimes (50 is the world price). The page opens with a full-width index chart for BTC, ETH and USDT, a chart of the two legs and a bar chart of every exchange's own implied premium. The index is in the JSON API (index block, index_bps per pair and per minute), the daily CSV, the x402 minute history, the MCP tool and the stream channel.