# Rain \[Corporate cards collateralized by stablecoins from your accounts]

[Rain](https://www.rain.xyz/) issues corporate cards backed by onchain stablecoin collateral ([Rain Spend](https://www.rain.xyz/rain-spend)). You deposit stablecoins up front; at the end of each billing cycle your spend is deducted from the collateral, and the remainder carries forward as the next month's available spend.

Splits' role is funding and visibility: connect an account, deposit USDC, and track collateral and card spending on the *Cards* page. Rain controls card issuance, limits, fees, and liquidation mechanics; for those, contact Rain's support.

## Setup

1. Create a dedicated [operating account](/accounts#operating-accounts) for Rain collateral, so card funding stays a clean sub-ledger.
2. Complete Rain's KYB at [use.rain.xyz/signup](https://use.rain.xyz/signup) (have your EIN and formation documents ready).
3. In Rain's wallet settings, link the Splits account via [WalletConnect](/integrations/walletconnect) and sign the verification message. Rain doesn't handle the browser extension well during setup; if linking misbehaves, remove and re-link the account.
4. Copy the Base collateral contract address from Rain's *Smart Contracts* page, and add it in Splits under *Cards*.

## Funding

Deposit collateral from the *Cards* page: a [send](/transactions/sends) of **USDC on Base** to the collateral address.

**Collateral addresses are network- and token-specific: sending any other token, or on any other network, loses the funds.**

Deposits and card spending appear in the Cards feed in Splits and in Rain under *Recent transactions*, and each deposit raises the card's monthly spend limit.