Source attribution
We aggregate from multiple commercial and reference data feeds. Each /v1/prices response includes a sources[] array naming the specific feed and license that contributed to that response.
Tokenized gold via CoinMarketCap
Tokenized-gold prints (PAXG, XAUT) are sourced from CoinMarketCap under their commercial Basic plan. Per CoinMarketCap's terms, attribution is required when surfacing this data downstream.
Required credit string: "Tokenized gold data via CoinMarketCap." Place it near any UI surfacing PAXG or XAUT prices, or in your docs / methodology page if redistributing.
Other sources
Detailed per-feed attribution requirements publish with v1.x post-launch. In the meantime, the sources[] array on every /v1/prices response carries the source identifier, license tag, and timestamp for the feed that produced the price you received. See /methodology for the calculation and validation approach.
Questions on commercial use or attribution placement: email hello@goldprice.dev.