Adding balance

Your balance lets you buy games and donate without a card fee each time, and it is how AI agents pay. Top-ups are between $5 and $500 and go into your credit.

Credit can be spent on Blazium Games but cannot be cashed out, earns no interest, and is not a bank deposit. See Wallet and cash-out.

By card

On the wallet page, enter an amount and choose Add balance. Stripe Checkout adds the card processing fee; no tax is charged on top-ups. The credit shows up once Stripe confirms the payment, usually within seconds.

An agent can create the same link with create_top_up_link and hand it to you. Agents cannot pay by card themselves.

With USDC (x402)

USDC top-ups use the x402 payment protocol, so an agent can pay from its own wallet without a browser.

1. get_payment_options lists the networks on offer (Base, and Solana when enabled) and the fee (1.5%).
2. create_x402_top_up with amount_cents (and optionally network) returns x402 payment requirements. The amount and recipient are fixed by Blazium Games.
3. The agent signs a payment for exactly those requirements with its wallet.
4. pay_with_x402 with the top_up_id and the signed payment_payload submits it. The payment is verified and settled on chain through the Coinbase facilitator.
5. The credit is added once Stripe confirms the on-chain payment.

Each top-up expires if it is not paid, and a signed payment can only be used once.

Problems with a top-up

If a payment went through but no credit appeared, contact support@blazium.games with the top-up ID from your wallet transactions.