Metals-API Blog: Comprehensive Precious Metals Pricing API

If you need Silver Dec 2025 (SIZ25) historical rates per troy ounce to backfill charts, audit pricing decisions, or run signals for a trading model, the fastest path is to query the Metals-API Historical and Time-Series endpoints with SIZ25 as your symbol. In this guide, we’ll show you exactly how to pull daily silver futures prices for December 2025 delivery, parse the JSON, handle weekends/holidays, and store the results safely for analytics, ERP valuation, or e-commerce pricing engines. Why Silver Dec 2025 (SIZ25) historical data matters for developers SIZ25 represents a specific delivery month in the silver futures curve. For developers building trading tools, pricing engines, or analyt...