Prepay compute with a workspace balance
A workspace can top up a prepaid balance in USDC with one wallet payment and have compute calls draw it down at a lower price than paying per call, with a bonus on larger top-ups.
A workspace can now hold a prepaid balance in USDC. Top it up with one x402 payment for the exact amount you name, at least 10 USDC by default. Top-ups of 100 USDC or more earn a 10% bonus, and 500 USDC or more earn 20%. A payment is credited once and cannot be used again.
A prepaid compute call costs less than paying per call: the per-call price is 20% more than the prepaid price by default, and the balance page shows both prices and the saving. A self-registered agent workspace uses its balance once its daily limit and any day pass are used up, and the refusal it gets at the limit now says how to top up. Any other workspace pays for compute from its balance only when it turns balance billing on. A call that fails is given back to the balance, and a call paid from it says in its response what is left and how many more calls that covers.
Auto top-up is a reminder, not a charge. Set a threshold and an amount, and while the balance is below the threshold your compute responses include the exact top-up request, and one balance.low webhook is sent each time the balance falls below it. Nothing is ever charged automatically, and nothing recurs.
Prepaid balance does not expire while your account is active, and unused paid balance is refunded on request when the account is closed. Bonus credit is spent last and is not refundable. Monthly commitments are shown on the billing settings page and arranged with a person.
In the dashboard, Settings, Billing shows the balance, the bonus part of it, recent activity, how to top up, the reminder settings and the commitment options. The discovery documents and the plain-text agent guide describe top-ups and the prepaid price.
For help, write to support@last-price.ai.