Read price data
Use market_code to identify the marketplace and provider_code to identify the source.
Read a quote in context
Use market_code to identify the marketplace and provider_code to identify the source. side=ask means sell listings, bid means buy orders, and mid means the CSCP estimate.
Treat market_price_amount as a decimal string in market_currency_code. Do not compare raw numbers across currencies. null means no reported amount; it is not zero. A delisted quote can retain its last price, so also check delisted_at and quantity.
Decide whether to use it
Check fresh_at against your own maximum age. changed_at is the last change, not the last successful observation. Quantity may be unknown or a lower bound. Unless is_all_items_same_price is true, do not assume every unit is available at the quoted price.
For CSCP, inspect valuation.valuation_date and confidence fields. See prices, freshness and valuation.