Deploys in seconds, gas about $0.05

Launch a B20

Trustless by default: fixed supply, no admin, Uniswap pool live from the first block, liquidity locked. Pair it with ETH, with B420, with a tokenized stock from Coinbase or ST0x, or with any Base token.

Connect your wallet first. It signs the deploy and receives the creator share of trading fees.

Token

Pair and first buy

Standard launch: your token trades against ETH in its own locked Uniswap v4 pool.

ETH
Balance unavailable

Optional, and it happens inside the launch transaction itself, before the anti-snipe delay is even armed. You get the first fill of your own token at the opening price. One signature, and if the buy cannot fill the launch does not go through either.

Holder rewards

Off
0% of your half

Off: a classic B20.

Options

You are paid in kind: part in your token, part in ETH. Nothing is ever swapped. You can change this later from the token page.

Give part of the supply away

Held by a contract and released against a list you set: a lockup first, then vesting if you want one. Whatever nobody claims comes back to you once the window closes.

ETH pairgas only, about $0.05

Note: some wallets show a failed simulation before you sign. Third-party simulators cannot execute the B20 precompile that mints the token; the transaction is sent with the correct gas and confirms onchain.

You sign the deploy transaction yourself and pay the gas, about $0.05 on Base. No launch caps. Deploys confirm in seconds. Every token address ends in b420, enforced by the factory at mint. Trading fees on your pool split 50/50: half to the protocol, half to you. B420 is an independent platform, not affiliated with Base or Coinbase.