gold-retail-conversionlisted

# goldprice.dev — retail gold conversion (keyless) Two endpoints, **no API key, no signup** — build the whole feature and demo it before anyone subscribes. ## Per-gram price by karat — `/v1/carat` Every common karat purity (24k down to 10k) per gram, in one call. Default `USD`; 31 currencies supported. ```bash curl "https://api.goldprice.dev/v1/carat?currency=INR" ``` Response — keys are flat `price_gram_Nk`, and **every value is a string** (parse before doing math): ```json {"currency":"IDR","timestamp":"2026-07-07T13:10:07Z", "price_gram_24k":"2397283.68","price_gram_22k":"2197510.04","price_gram_21k":"2097623.22", "price_gram_20k":"1997736.40","price_gram_18k":"1797962.76","price_gram_16k":"1598189.12", "price_gram_14k":"1398415.48","price_gram_10k":"998868.20"} ``` Karat keys returned: `price_gram_24k 22k 21k 20k 18k 16k 14k 10k`. Computed from live XAU spot × live FX. 22k is the retail standard across India/UAE, 24k across Indonesia/China. MCP equivalent: `get_carat(currency)` — free, no tier gate. ## Weight ↔ money — `/v1/convert` Convert a metal amount to a currency (or between units). No auth. `XAU` and `XAG` only (no copper, no spot row); `date` / historical is not supported. ```bash curl "https://api.goldprice.dev/v1/convert?from=XAU&to=USD&amount=1&unit=oz" ``` Response — `rate` is full precision; `amount` / `result` are **strings** (cast before formatting): ```json {"from":"XAU","to":"IDR","amount":"1.0","rate":"2397283.680999…","result":"2397283.6