Does Polygon support commodities data?

We do not currently support commodities data, however, we plan to in the near future. We currently only provide data for Gold, Platinum, Palladium, and Silver through our forex endpoints. You can query them using the following symbols:
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Gold - C:XAUUSD, Platinum - C:XPTUSD, Palladium - C:XPDUSD, Silver - C:XAGUSD