@perifinance/peri-finance/publish/deployed/ropsten/feeds.json

The smart contracts which make up the Peri Finance system. (pynths.com)

{
	"PERI": {
		"asset": "PERI",
		"feed": "",
		"standalone": true
	},
	"DAI": {
		"asset": "DAI"
	},
	"USDC": {
		"asset": "USDC"
	}
}