Top-ups

Fund your balance with USDC, settled on Solana.

The flow

• You create an order — model and token amount. Relai computes the USDC owed (tokens × locked rate) and returns the treasury address and a Solana Pay link.
• You send USDC from your connected wallet to the treasury.
• Relai scans the treasury's USDC account, matches the transfer to your wallet, validates the amount, and credits your balance. Each transaction credits exactly once.

# 1. create an order
POST /api/v1/topup/intent
{ "model_id": "deepseek/deepseek-chat", "tokens_m": 5 }
# → { intent_id, treasury, usdc_amount, solana_pay_url }

# 2. after paying, confirm
POST /api/v1/topup/verify
{ "intent_id": "..." }
# → { status: "paid", credited_micros, balance_micros }