You spin up agents and want them to paid without opening a bank account... or spin-up hundreds of agents... or your country isn't very well integrated with western banking rails. I think there is more to consider.
The amount of money you can load or receive into a debit card is limited without doing enough KYC overhead you could have gotten a bank account with the same effort.
If you try automating bots to do KYC for debit cards what you'll be doing is basically looking like a money launderer and get all your accounts shut down.
If you're fine with the usual 0.20 - 0.30 USD of processing fees, you definitely can. Cards work well for many things; micropayments are not one of them.
> I believe with x402 and USDC you can pay as low as $0.000001 per HTTP request with no fees.
On-chain transactions are still not free. x402 isn't settled in batches or rolled up anywhere AFAIK, so large volumes of tiny payments are still not cost-effective. Facilitators such as Coinbase only subsidize transactions up to a point: https://docs.cdp.coinbase.com/x402/core-concepts/facilitator