Operate
Billing
Prepaid credits for API requests. 1,000 credits = $1.
| Term | Value | Why |
|---|---|---|
| Peg | 1,000 credits = $1 | Fixed. Provider price cuts make models cheaper in credits. |
| Direct Solana minimum | $0.50 | Relay and other crypto providers start at $5. |
| Payment methods | Account-specific | Checkout shows the methods available to your account. |
| Withdrawals | None | Credits buy inference. There is no redemption path. |
| Expiry | Never | Your credits do not expire. |
Auto Free billing
Auto Free needs no deposit or monetary hold and always charges you $0. Adding credits does not turn it into paid inference. You can check your requests in Activity.
See the Auto Free API guide for setup, account limits, and the separate chat trial.
The peg
1,000 credits = $1, fixed. Provider price cuts make models cheaper in credits. Read your request cost in usage.cost (the final usage chunk on a stream) and, on non-streaming responses, the x-minirouter-cost-usd header. That figure is the customer charge, provider cost plus markup, so it matches the dashboard. The total markup over provider cost is 8% through minirouter/auto and 10% through minirouter/fusion; the x-minirouter-markup-bps header names the one applied. If Fusion cannot classify the request, it uses Auto and charges the Auto rate. Presets use their resolved route's rate, with no extra preset fee.
Deposits and withdrawals
Credits pay for inference and cannot be withdrawn. Direct Solana payments start at $0.50; Relay starts at $5. Save your accountless key and permanent dashboard link. If you lose both without adding email or wallet recovery, you cannot recover access to your balance.
Refunds: service credit, never cash
The remedy for our mistakes is service credit to your balance, never cash. The full policy, including wrong-chain deposit recovery, is at /legal/refunds.
Cards and chargebacks
Check checkout for card availability, fees and minimums. A chargeback removes the credited amount from your balance, which may become negative if already spent, and suspends the account until the chargeback is resolved. Deposit limits may vary with account age.
Running low
A balance below a request’s estimated cost gets a pre-request 402. The x-minirouter-balance-usd header is on every response. Accountless users can also opt into browser push or verified-email alerts.
Where possible we clamp max_tokens to what the balance affords, run the request, and flag it with x-minirouter-max-tokens-clamped: true. Your last $0.30 still works.