Top Up Contract
Move USDC from the merchant's Coinflow Solana wallet into the Rain
contract deposit address. Provisions the company contract if missing.
Authentication
Authorizationstring
The API key of the merchant - see https://docs.coinflow.cash/api-reference/api-reference/authentication/get-session-key
Request
This endpoint expects an object.
amountUsd
Response
Ok
signature
onChainBalance
contract
spendingPower

