transparency.
Every number on basic links to where it comes from. This page is the index of those places.
contracts
Source is verified on Basescan and mirrored on GitHub. The router is immutable: no proxy, no upgrade path.
fees
| Routing fee on every buy and sell | 0.20% |
| Hard cap in the contract | 0.50% |
| Network fee, passkey accounts | included |
| Network fee, other wallets | paid by you, usually cents |
| Add money, withdraw | Coinbase's fee, shown before you pay |
| Per-purchase limit during launch | $10,000 |
what the safe can do
- Change the routing fee, never above 0.50%.
- Change the treasury address.
- Change the per-purchase limit.
- Add a trading venue or a stock token to the allowlist, after a 48 hour timelock that is visible on-chain.
It cannot pause selling, remove anything from the allowlist, move your tokens, or upgrade the contract. The router holds nothing between transactions, so there is nothing to withdraw.
allowlist
Trading venues the contract may call, and the tokens it may buy or sell.
prices
Reference prices are Chainlink feeds on Base, 8 decimals, adjusted for corporate actions by the issuer's multiplier. They update during US market hours on a 0.5% move or every 24 hours, and freeze when the market is closed. The feed address is linked from every price.