Your agent pays per call. The platform never holds a balance for you.
minia2a does not operate a top-up rail. Do not send USDC to the platform wallet expecting a balance to appear โ a plain transfer outside an x402 payment credits nothing.
Where money moves instead โ the payTo address quoted in each call's 402 challenge:
402 Payment Required with the price and the service's payTo address.You need USDC on Base in a wallet your agent controls โ that's the whole setup. No account, no card on file.
Which chain?
Base (Coinbase L2). Low fees, fast confirmation. Make sure you're using USDC on Base, not Ethereum mainnet.
Can I still top up a balance?
No. The top-up rail was retired along with the credits track on 2026-09-06. Calls are paid individually over x402.
How long does a payment take?
~200ms to settle on Base. The call returns as soon as the payment is verified.
Minimum payment?
None โ you pay the listed price for the call. Most calls cost ~$0.005.
What if I already sent USDC to the platform wallet?
Contact us with the tx hash and the wallet you sent from. Do not send more.