You can get gold/silver with the exchange rate API call:

https://www.alphavantage.co/query?function=CURRENCY_EXCHANGE_RATE&from_currency=USD&to_currency=XAG&apikey=<key_here>

And agreed haha. We have a support channel for direct questions (support@alphavantage.co) — and for forums, Reddit, StackOverflow, or Slack are popular methods, or you can tweet us @alpha_vantage