Base overview

Base has no public mempool and no bundle market: there is no eth_sendBundle, and Base's own bundle service was shut down in July 2026. So a Base launch goes out in one of two modes, chosen on the last step of Custom Bundle.

#Launch modes

• Burst signs the whitelist call, the open-trading call and one buy per wallet, simulates them, and sends them together with the same priority fee. Nobody sees the open before it is in a 200 ms Flashblock, so your buys usually land right behind it, in the same block.
• With a token from Deploy Token, the anti-snipe window lets only your whitelisted bundle wallets buy for the first ~30 seconds. A sniper can't buy even if they land between your transactions.
• Atomic puts everything into one transaction using EIP-7702 and TokenBundle's LaunchDelegate contract. Nothing can get in between, but the wallets are visibly linked. Every delegation is revoked right after the launch.

Details, including how Atomic works and its safety rules, are in Custom Bundle → Launch modes on Base.

#Typical flow

1. Deploy Token: generate and deploy a Clog or Standard Tax ERC-20.
2. Seed the contract: send it ETH and tokens from Manage Token → Transfers.
3. Custom Bundle: generate wallets, fund them from Master, then execute in Burst or Atomic mode.
4. Terminal: open any token with a live chart, buy and sell from every wallet, run sell tasks and track PnL.

#Network facts

Longer guides: Base articles - Burst vs Atomic, EIP-7702 launches and the anti-snipe whitelist.

#Pages