Supported assets and networks
cross river support cross river stablecoin payments support stablecoin transfers across multiple blockchains supported networks are selected and maintained to align with cross river’s standards for reliability, interoperability, and settlement processing supported asset asset description usage usdc a u s dollar denominated stablecoin issued by circle and backed by reserve assets used to support stablecoin payment activity on supported blockchain networks support for additional stablecoins and blockchain networks may be added over time supported networks ethereum a widely adopted blockchain network with a mature ecosystem and established infrastructure function explanation settlement time confirmation typically occurs within seconds to a few minutes, subject to network conditions transaction fees determined by network gas prices and paid in eth precision unit wei (1 usdc = 1e6 wei) use case focus often used where broad ecosystem compatibility and established tooling are considerations solana a high throughput blockchain network designed for low latency transaction processing function explanation settlement time confirmation typically occurs within seconds, subject to network conditions transaction fees low transaction fees paid in sol precision unit lamport (1 usdc = 1e6 lamports) use case focus often used where faster confirmation times and lower transaction costs are considerations token denominations blockchain networks represent asset values in smaller units to support precise transactions and accurate fee calculation api requests should specify amounts using the smallest denomination supported by the selected network asset network precision unit rate format usdc ethereum wei 1 usdc = 1,000,000 wei amount = 1000000 represents 1 usdc usdc solana lamport 1 usdc = 1,000,000 lamports amount = 1000000 represents 1 usdc eth ethereum wei 1 eth = 1,000,000,000,000,000,000 wei (1e18) used for network fees sol solana lamport 1 sol = 1,000,000,000 lamports (1e9) used for network fees use the amount field in your api calls to specify values in the smallest denomination for example, to send 1 usdc, set "amount" 1000000 network selection you can specify a blockchain network for each stablecoin payment using the blockchain field in the api request cross river manages network interaction, transaction broadcasting, and confirmation tracking as part of the payment flow example request cur { "accountnumber" "2917000057", "amount" 1000000, "currency" "usdc", "blockchain" "solana", "externaladdressid" "9f9e2c43 8a2d 4cd7 a3f0 b39e012789ab" } learn how to originate an onchain payment docid 97ecbpklpcwxvcxkeo la choose the right network network description selection considerations ethereum widely adopted network with established infrastructure and tooling often selected when ecosystem compatibility and interoperability are priorities solana high throughput network designed for low latency transaction processing often selected when faster confirmation times and lower transaction costs are priorities