Private mempool on Base: protect swaps & pool creation
How transactions on Base can be seen by bots before they land — and what BaniPool does to protect your swaps, Zaps and pool creation.
Sandwiches, front-running and snipers
Sandwich: a bot buys right before your swap (pushing the price up) and sells right after — you get the worst price your slippage allows. Sniper: a bot buys into a new pool before its creator finishes seeding it. Both require seeing your transaction before it lands.
Base for liquidity providers
Base is Coinbase's Ethereum L2 (OP Stack) with cheap gas and heavy retail activity. Besides Uniswap v2/v3/v4, Base has Aerodrome and Aerodrome Slipstream — Base's leading DEX with AERO incentives. Gas is usually well under a cent to a few cents, so small capital makes sense and ranges can be adjusted more often.
The mempool on Base
Base has no public mempool: transactions go straight to the sequencer and are ordered by priority fee, so classic sandwiches are far harder than on Ethereum. An extra private mempool is not needed — sensible slippage is still recommended.
Honest limits
A private mempool hides a transaction before it lands, not after: once confirmed, the transaction and pool are public on-chain. Block producers (validators / builders) still see it. Sensible slippage is still needed.
DEXes on Base supported by BaniPool
Top Base pools (TVL)
| Pool | DEX | Fee | TVL | Fee APR |
|---|---|---|---|---|
| WETH / USDC | Uniswap v3 | 0.3% | $126.3M | 100.6% |
| WETH / cbBTC | Uniswap v3 | 0.05% | $14.8M | 53.6% |
| WETH / cbBTC | Uniswap v3 | 0.3% | $8.2M | 31% |
| USDC / cbBTC | Uniswap v3 | 0.05% | $7.8M | 43.9% |
| WETH / USDC | Uniswap v3 | 0.05% | $6.8M | 43.2% |
| USDC / AERO | Aerodrome | 0.3% | $4M | 22.7% |
| ETH / USDC | Uniswap v4 | 0.3% | $3.9M | 64.3% |
| ETH / cbBTC | Uniswap v4 | 0.05% | $3.1M | 13.8% |
| WETH / USDC | Aerodrome Slipstream | 0.0138% base | $2.7M | — |
| WETH / cbBTC | Aerodrome Slipstream | 0.25% base | $2.1M | 15.7% |
FAQ
Does Base have a public mempool?
Is the transaction really hidden?
Hidden from the public until it lands. After that it is visible like any other transaction on the explorer — what is prevented is bots reacting before your transaction executes.
How much does it cost?
On Solana just a small Jito tip per transaction (capped at 0.0001–0.002 SOL). On Ethereum & BNB the private RPCs (Flashbots Protect, MEV Blocker, PancakeSwap MEV Guard, BlockRazor) are free — you only pay normal gas. BaniPool adds no fee for this feature.