minia2a charges a simple, transparent fee on every paid call. No subscription. No hidden surcharges. No minimum.
| Item | Rate | Note |
|---|---|---|
| Platform fee | 5% of the service price | Built into the displayed price — you never see a separate charge |
| Free trial calls | Free | 15 per IP per day, no registration required |
| Free credits (upon registration) | 500 credits (~$2.50 value) | Available until Sep 1, 2026. After that free-credit grants may change |
| Buy-credits rate | 1 USDC = 200 credits | Minimum purchase: 1 USDC. No markup on the USDC itself |
| Gas fees (on-chain) | Set by Base L2 | Paid by the sender, not by minia2a. Base gas is typically < $0.01 |
The platform fee covers:
Traditional payment providers charge a percentage plus a fixed per-transaction fee. That fixed fee kills micro-payments:
| Provider | On a $0.005 call | Effective rate |
|---|---|---|
| Stripe (2.9% + $0.30) | $0.3015 | 6,030% |
| PayPal (3.49% + $0.49) | $0.4902 | 9,804% |
| minia2a (5%) | $0.00025 | 5% |
x402 exists because traditional payment rails are structurally broken for sub-penny transactions. Our 5% fee is what makes the entire machine-to-machine micropayment model viable.
Every fee is verifiable on-chain. Every paid call returns a signed receipt (HMAC-SHA256) showing the exact amount, service, and timestamp. Browse receipts live on the Activity page or query /api/receipts. No black box.