Metals-API Blog: Comprehensive Precious Metals Pricing API

You need a clean, daily history of Mumbai silver (MUMB-XAG) priced per gram for dashboards, pricing engines, or backtesting. By the end of this guide you will query Metals-API for MUMB-XAG historical rates, convert the default troy-ounce quotes into per-gram values in INR, and export a ready-to-use CSV. What you will build: a daily Mumbai silver per-gram history table We will produce a CSV with rows like: date (YYYY-MM-DD) mumb_xag_inr_per_troy_ounce (as returned by the API) mumb_xag_inr_per_gram (derived) This is enough to power a product price rule (e.g., “spot + margin per gram”), a research chart, or a manufacturing ERP material revaluation. We’ll use two endpoints: the single-d...