Get current gold and silver prices in Turkey, quoted in Turkish lira (TRY). Source: Harem Altın, cross-checked with TCMB; refreshed every 5 minutes. Returns buy/sell prices, daily change (% and amount), weight and purity for: gram gold (14k/18k/22k/24k), Turkish gold coins (çeyrek/quarter, yarım/half, tam/full, cumhuriyet/republic, ata) and silver per gram. Use the optional 'category' filter to narrow results; omit it for everything. Use this for questions like 'gram altın ne kadar?', 'quarter gold coin price in Turkey', or 'how much is 24k gold in Istanbul today?'.

Get official Turkish lira (TRY) exchange rates from TCMB, the Central Bank of the Republic of Türkiye. Returns forex and banknote buy/sell rates for ~22 currencies (USD, EUR, GBP, JPY, SAR, AED, RUB, etc.). Rates are the official daily fixing published ~15:31 Istanbul time on trading days; weekends/holidays return the last trading day. Pass 'currency' (ISO 4217 code) for a single currency, or omit it for the full table. Note: JPY is quoted per 100 units (check the 'unit' field). Use this for 'dollar to lira rate', 'EUR/TRY today', or converting amounts to/from TRY.

Get current pump fuel prices in Turkey in TRY per litre, aggregated from official EPDK (Energy Market Regulatory Authority) per-brand reports. Covers gasoline 95 octane ('benzin95') and diesel ('motorin') with city averages plus min/max across brands. Available cities: istanbul, ankara, izmir, antalya. Pass 'city' to get one city, or omit it to compare all four. Refreshed every 6 hours. Use this for 'petrol price in Istanbul', 'diesel cost Turkey', 'benzin fiyatı'.

Get Islamic prayer times (namaz vakitleri) for a Turkish city using the official Diyanet İşleri calculation method. Returns fajr, sunrise, dhuhr, asr, maghrib and isha in 24-hour local Istanbul time, plus the Hijri date. The 'city' parameter is REQUIRED — call list_prayer_cities first if unsure which cities are available (20 major Turkish cities, lowercase ASCII slugs like 'istanbul', 'ankara', 'sanliurfa'). Optional 'date' (YYYY-MM-DD) defaults to today; only a few days around today are cached — far-future or past dates return an error. Use this for 'iftar time in Istanbul', 'when is maghrib in Ankara', 'namaz vakitleri'.

List the Turkish city slugs supported by get_prayer_times (20 major cities, e.g. istanbul, ankara, izmir, bursa, antalya, konya...). Call this before get_prayer_times when you are not sure a city is supported or how its slug is spelled. Takes no parameters.

Get recent earthquakes in and around Turkey from the Kandilli Observatory (KOERI) official feed, refreshed every 5 minutes. Returns magnitude, depth (km), coordinates, location name and timestamp (Istanbul time) for each event, newest first. Filters: 'hours' = lookback window (default 24, max 168 = 7 days), 'min_magnitude' = minimum magnitude (e.g. 3 to skip micro-quakes), 'city' = substring match on the location name (e.g. 'izmir', 'balikesir'), 'limit' = max results (default 20, max 100). Use this for 'was there an earthquake in Turkey today?', 'deprem son dakika', 'earthquakes near Izmir this week'. For just the single most recent event, use get_latest_earthquake instead.

Get the single most recent earthquake recorded in or around Turkey by the Kandilli Observatory (KOERI). Returns magnitude, depth, coordinates, location and time (Istanbul timezone). Feed refreshes every 5 minutes. Takes no parameters. Use this for 'what was the last earthquake in Turkey?' — for lists, filtering or a longer time window, use get_earthquakes instead.