Read the managed wallet

Returns the managed wallet's funding addresses and USDC balance: wallet_address, base_wallet_address, balance_usdc, needs_funding, and has_wallet. balance_usdc is the total across the wallet's Solana and Base sides, which every payment and transfer can draw on, split as solana_balance_usdc and base_balance_usdc. base_balance_usdc is null when its live chain read fails.

Fund the wallet by sending USDC on Solana to wallet_address, or USDC on Base to base_wallet_address; both land in the same balance. Neither is your user_id — a usr_... value is an account id, never a receive address. Poll this to watch a deposit land.

Send the id_token from /auth as a Bearer token, with a plain JSON body (no data wrapper). Free.