Usage-Based Pricing
Cavos has no subscriptions, no tiers, and no per-user fees. You only pay for the gas your users consume.How it works
- Deposit STRK into your organization’s Gas Tank via the Billing Dashboard
- A 5% platform fee is deducted from each deposit
- The remaining balance sponsors your users’ gasless transactions
- Gas costs are deducted atomically with each sponsored transaction
What’s included
| Feature | Cost |
|---|---|
| SDK access (React & React Native) | Free |
| Account creation & deployment | Sponsored from your Gas Tank |
| Gasless transactions (Paymaster) | Sponsored from your Gas Tank |
| Session keys & policies | Free |
| Dashboard & analytics | Free |
| Testnet (Sepolia) | Completely free — no deposit needed |
Testnet vs Mainnet
- Sepolia (Testnet)
- Mainnet
On Sepolia, Cavos operates a free pool. You do not need to deposit any tokens — all transactions are sponsored automatically.This is ideal for development and testing.
Managing your Gas Tank
Go to cavos.xyz/dashboard/billing to:- View your current STRK balance
- Deposit STRK from any Starknet wallet
- Track deposit history and gas consumption
If your users see an
"x-paymaster-api-key is invalid" error, it almost always means your organization has run out of gas. Deposit more STRK to resolve this.