> ## Documentation Index
> Fetch the complete documentation index at: https://docs.northfond.xyz/llms.txt
> Use this file to discover all available pages before exploring further.

# Wallets

> Use managed wallets or register verified external EVM wallets.

NorthFond supports managed and external EVM wallets. Managed wallet addresses are derived internally and cannot be supplied by callers. External wallets require a short-lived EIP-191 ownership challenge before live use.

| Endpoint                                                    | Purpose                          |
| ----------------------------------------------------------- | -------------------------------- |
| `POST /api/v1/business/wallets`                             | Register an external wallet      |
| `GET /api/v1/business/wallets`                              | List wallets                     |
| `GET /api/v1/business/wallets/:id/balance`                  | Read chain-specific USDC balance |
| `POST /api/v1/business/wallets/:id/verification-challenges` | Create ownership challenge       |
| `POST /api/v1/business/wallets/:id/verify`                  | Submit the signed challenge      |